added the Cinematic Rendering Pipeline

.gitignore

@@ -8,7 +8,6 @@
 *.idb
 code/qcommon/git.h
 code/win32/winquake.res
-code/renderer/hlsl/*.h
 makefiles/windows_vs*/*sdf
 makefiles/*/obj
 .build

changelog.txt

@@ -65,21 +65,55 @@ add: r_shadingRate <0 to 6> (default: 0) sets the variable-rate shading (VRS) mo
   prefer horizontal subsampling as many maps have textures with thin horizontal lines
   which become an aliased mess when vertically subsampled
 
+add: Cinematic Rendering Pipeline CVars
+  depth of field:
+    crp_dof <0|1|2> (default: 1) selects the depth of field mode
+      0 - disabled
+      1 - scatter-as-gather
+      2 - accumulation
+    crp_dof_overlay <0|1|2> (default: 0) draws a debug overlay mode
+      0 - disabled
+      1 - colorized blur
+      2 - focus plane
+    crp_dof_blades <0 to 16> (default: 6) is the aperture's blade count
+      set to less than 3 for a disk shape
+    crp_dof_angle <0 to 360> (default: 20) is the aperture's angle, in degrees
+  scatter-as-gather depth of field (fast, doesn't handle transparency properly):
+    crp_gatherDof_focusNearDist <1 to 2048> (default: 192) is the near-field's focus distance
+    crp_gatherDof_focusNearRange <1 to 2048> (default: 256) is the near-field's focus range
+    crp_gatherDof_focusFarDist <1 to 2048> (default: 512) is the far-field's focus distance
+    crp_gatherDof_focusFarRange <1 to 2048> (default: 384) is the far-field's focus range
+    crp_gatherDof_brightness <0 to 8> (default: 2) is the blur brightness' weight
+  accumulation depth of field (extremely slow, looks perfect with enough samples):
+    crp_accumDof_focusDist <2 to 2048> (default: 256) is the focus distance
+    crp_accumDof_radius <0.001 to 20> (default: 0.1) is the aperture radius in world units
+    crp_accumDof_samples <1 to 12> (default: 2) is per-axis sampling density
+      density N means (2N + 1)^2 scene renders in total, so be careful or you'll trigger TDR
+    crp_accumDof_preview <0|1|2> (default: 0) selects the real-time preview mode
+      0 - disabled
+      1 - 1/4 pixel count, 9 samples total
+      2 - 1/16 pixel count, 25 samples total
+
 chg: dropped 32-bit support
 
 chg: dropped Linux/FreeBSD client
 
 chg: Windows support is limited to 10 and 11
 
-chg: much improved rendering:
+chg: reworked renderer with 2 new rendering pipelines
-  - removed all Direct3D 11 and OpenGL code
+  - removed all the Direct3D 11 and OpenGL code, now using Direct3D 12
-  - rendering with Direct3D 12 (improved performance and better worst case input latency)
   - much improved input latency when V-Sync is enabled
-  - improved frame-time consistency
+  - improved frame-time consistency ("frame pacing")
-  - surfaces are sorted and rendered more efficiently
   - fog handling has been completely overhauled (faster, simpler, decoupled from surfaces)
   - MSAA and alpha-to-coverage have been removed
-  - added SMAA for anti-aliasing (gamma-corrected and not applied to UI for best results)
+  - Gameplay Rendering Pipeline (GRP)
+    - improved performance and better worst case input latency
+    - added SMAA for anti-aliasing (gamma-corrected and not applied to UI for best results)
+    - added VRS (Variable Rate Shading) support
+  - Cinematic Rendering Pipeline (CRP)
+    - order-independent transparency
+    - depth of field (scatter-as-gather or accumulation)
+    - all corresponding CVars have the "crp_" prefix
 
 chg: removed cl_drawMouseLag, r_backend, r_frameSleep, r_gpuMipGen, r_alphaToCoverage, r_alphaToCoverageMipBoost
   removed r_d3d11_syncOffsets, r_d3d11_presentMode, r_gl3_geoStream, r_ignoreGLErrors, r_finish, r_khr_debug

code/client/cl_main.cpp

@@ -1591,12 +1591,35 @@ static void CL_CheckUserinfo()
 }
 
 
+static void CL_CheckCRP()
+{
+	// demo playback and listen servers are always OK
+	if ( Cvar_VariableIntegerValue( "r_pipeline" ) != 1 ||
+		CL_DemoPlaying() ||
+		Cvar_VariableIntegerValue( "sv_running" ) )
+		return;
+
+	switch ( cls.state ) {
+		case CA_CHALLENGING:
+		case CA_CONNECTING:
+		case CA_CONNECTED:
+			Cbuf_AddText( "r_pipeline 0\nvid_restart\nreconnect\n" );
+			Com_Printf( "^3WARNING: switched to GRP (r_pipeline 0) for online play\n" );
+			break;
+		default:
+			break;
+	}
+}
+
+
 void CL_Frame( int msec )
 {
 	if ( !com_cl_running->integer ) {
 		return;
 	}
 
+	CL_CheckCRP();
+
 	if ( cls.cddialog ) {
 		// bring up the cd error dialog if needed
 		cls.cddialog = qfalse;
@@ -3014,3 +3037,9 @@ void CL_SetMenuData( qboolean typeOnly )
 		}
 	}
 }
+
+
+qbool CL_DemoPlaying()
+{
+	return clc.demoplaying;
+}

code/client/cl_ui.cpp

@@ -1222,10 +1222,3 @@ qbool UI_GameCommand()
 {
 	return (uivm && VM_Call( uivm, UI_CONSOLE_COMMAND, cls.realtime ));
 }
-
-
-qbool CL_DemoPlaying()
-{
-	return clc.demoplaying;
-}
-

code/qcommon/q_math.c

@@ -25,8 +25,14 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 #include "q_shared.h"
 
 
+const vec3_t vec2_zero = { 0, 0 };
+const vec3_t vec2_one = { 1, 1 };
 const vec3_t vec3_origin = { 0, 0, 0 };
+const vec3_t vec3_zero = { 0, 0, 0 };
+const vec3_t vec3_one = { 1, 1, 1 };
 const vec4_t vec4_zero = { 0, 0, 0, 0 };
+const vec4_t vec4_one = { 1, 1, 1, 1 };
+
 #if defined(Q3_VM) // lcc can't cope with "const vec3_t []"
 vec3_t axisDefault[3] = { { 1, 0, 0 }, { 0, 1, 0 }, { 0, 0, 1 } };
 #else

code/qcommon/q_shared.h

@@ -178,6 +178,13 @@ typedef int		clipHandle_t;
 #define STRINGIZE_NE(x)		#x					// no expansion
 #define STRINGIZE(x)		STRINGIZE_NE(x)		// with expansion
 
+// #define A 42
+// #define B 69
+// CONCAT_NE(A, B) -> AB
+// CONCAT(A, B)    -> 4269
+#define CONCAT_NE(x, y)		x ## y				// no expansion
+#define CONCAT(x, y)		CONCAT_NE(x, y)		// with expansion
+
 // angle indexes
 #define	PITCH				0		// up / down
 #define	YAW					1		// left / right
@@ -259,13 +266,25 @@ typedef float vec_t;
 typedef vec_t vec2_t[2];
 typedef vec_t vec3_t[3];
 typedef vec_t vec4_t[4];
+extern const vec3_t vec2_zero;
+extern const vec3_t vec2_one;
 extern const vec3_t vec3_origin;
+extern const vec3_t vec3_zero;
+extern const vec3_t vec3_one;
 extern const vec4_t vec4_zero;
+extern const vec4_t vec4_one;
 
 #ifndef M_PI
 #define M_PI 3.14159265358979323846f // matches value in gcc v2 math.h
 #endif
 
+#define M_PI_D2 (M_PI / 2.0f)
+#define M_PI_D4 (M_PI / 4.0f)
+#define M_PI_D8 (M_PI / 8.0f)
+#define M_PI_M2 (M_PI * 2.0f)
+#define M_PI_M4 (M_PI * 4.0f)
+#define M_PI_M8 (M_PI * 8.0f)
+
 
 // all drawing is done to a 640*480 virtual screen size
 // and will be automatically scaled to the real resolution

code/renderer/compshaders/.gitignore

@@ -0,0 +1,2 @@
+*.h
+*.temp

code/renderer/crp_dof_accum.cpp

@@ -0,0 +1,366 @@
+/*
+===========================================================================
+Copyright (C) 2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// Cinematic Rendering Pipeline - accumulation depth of field
+
+
+#include "crp_local.h"
+namespace dof_accum
+{
+#include "compshaders/crp/accumdof_accum_vs.h"
+#include "compshaders/crp/accumdof_accum_ps.h"
+}
+namespace dof_norm
+{
+#include "compshaders/crp/accumdof_norm_vs.h"
+#include "compshaders/crp/accumdof_norm_ps.h"
+}
+namespace dof_debug
+{
+#include "compshaders/crp/accumdof_debug_vs.h"
+#include "compshaders/crp/accumdof_debug_ps.h"
+}
+
+
+#pragma pack(push, 4)
+
+struct DOFAccumRC
+{
+	uint32_t textureIndex;
+};
+
+struct DOFNormRC
+{
+	uint32_t textureIndex;
+};
+
+struct DOFDebugRC
+{
+	float mvp[16]; // displaced view, to project to CS
+	float invMvp[16]; // main view, to unproject to WS
+	uint32_t colorTextureIndex;
+	uint32_t depthTextureIndex;
+	uint32_t debugMode; // 1: colorized coc, 2: constant intensity far field
+	uint32_t tcScale;
+	float focusDist;
+	float linearDepthA; // main view, to unproject to WS
+	float linearDepthB;
+	float maxNearCocCS;
+	float maxFarCocCS;
+};
+
+#pragma pack(pop)
+
+
+// the input is in [0,1]^2, the output polygon is centered at the origin
+static void MapUnitSquareToPolygon(const vec2_t square01, float apertureBladeCount, float apertureAngleRad, vec2_t polygon)
+{
+	// needed to avoid inf/nan propagation through theta for samples
+	// that are exactly in the middle of the quad on either axis
+	// (i.e. square.x|y == 0.5f gets remapped to 0.0f)
+	const float epsilon = 0.000001f;
+
+	// morph into a square in [-1,1]^2
+	vec2_t square;
+	square[0] = square01[0] * 2.0f - 1.0f;
+	square[1] = square01[1] * 2.0f - 1.0f;
+
+	// morph the square into a disk
+	// "A Low Distortion Map Between Disk and Square" by Peter Shirley and Kenneth Chiu
+	float radius, angle;
+	vec2_t square2;
+	square2[0] = square[0] * square[0];
+	square2[1] = square[1] * square[1];
+	if(square2[0] > square2[1])
+	{
+		// left and right quadrants
+		radius = square[0];
+		angle = (square[1] * M_PI_D4) / (square[0] + epsilon);
+	}
+	else
+	{
+		// top and bottom quadrants
+		radius = square[1];
+		angle = M_PI_D2 - (square[0] * M_PI_D4) / (square[1] + epsilon);
+	}
+	if(radius < 0.0f)
+	{
+		radius = -radius;
+		angle += M_PI;
+	}
+
+	// morph the disk into a polygon
+	// "Graphics Gems from CryENGINE 3" by Tiago Sousa
+	const float edgeCount = apertureBladeCount;
+	if(edgeCount >= 3.0f)
+	{
+		const float num = cosf(M_PI / edgeCount);
+		const float den0 = M_PI_M2 / edgeCount;
+		const float den1 = (angle * edgeCount + M_PI) / M_PI_M2;
+		const float den = angle - (den0 * floorf(den1));
+		radius *= num / cosf(den);
+		angle += apertureAngleRad;
+	}
+
+	polygon[0] = cosf(angle) * radius;
+	polygon[1] = sinf(angle) * radius;
+}
+
+static int GetResolutionScale()
+{
+	switch(crp_accumDof_preview->integer)
+	{
+		case 0: return 1;
+		case 1: return 2;
+		case 2: return 4;
+		default: Q_assert(0); return 1;
+	}
+}
+
+
+void AccumDepthOfField::Init()
+{
+	{
+		GraphicsPipelineDesc desc("DOF Accumulate");
+		desc.shortLifeTime = true;
+		desc.vertexShader = ShaderByteCode(dof_accum::g_vs);
+		desc.pixelShader = ShaderByteCode(dof_accum::g_ps);
+		desc.depthStencil.DisableDepth();
+		desc.rasterizer.cullMode = CT_TWO_SIDED;
+		desc.AddRenderTarget(GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE, crp.renderTargetFormat);
+		accumPipeline = CreateGraphicsPipeline(desc);
+	}
+
+	{
+		GraphicsPipelineDesc desc("DOF Normalize");
+		desc.shortLifeTime = true;
+		desc.vertexShader = ShaderByteCode(dof_norm::g_vs);
+		desc.pixelShader = ShaderByteCode(dof_norm::g_ps);
+		desc.depthStencil.DisableDepth();
+		desc.rasterizer.cullMode = CT_TWO_SIDED;
+		desc.AddRenderTarget(0, crp.renderTargetFormat);
+		normPipeline = CreateGraphicsPipeline(desc);
+	}
+
+	{
+		GraphicsPipelineDesc desc("DOF Debug");
+		desc.shortLifeTime = true;
+		desc.vertexShader = ShaderByteCode(dof_debug::g_vs);
+		desc.pixelShader = ShaderByteCode(dof_debug::g_ps);
+		desc.depthStencil.DisableDepth();
+		desc.rasterizer.cullMode = CT_TWO_SIDED;
+		desc.AddRenderTarget(0, crp.renderTargetFormat);
+		debugPipeline = CreateGraphicsPipeline(desc);
+	}
+
+	{
+		TextureDesc desc("DOF accumulation", glConfig.vidWidth, glConfig.vidHeight);
+		desc.initialState = ResourceStates::RenderTargetBit;
+		desc.allowedState = ResourceStates::RenderTargetBit | ResourceStates::PixelShaderAccessBit;
+		Vector4Clear(desc.clearColor);
+		desc.usePreferredClearValue = true;
+		desc.committedResource = true;
+		desc.format = crp.renderTargetFormat;
+		desc.shortLifeTime = true;
+		accumTexture = CreateTexture(desc);
+	}
+}
+
+void AccumDepthOfField::Begin(const drawSceneViewCommand_t& cmd)
+{
+	CmdSetViewportAndScissor(0, 0, glConfig.vidWidth, glConfig.vidHeight);
+
+	const TextureBarrier texBarriers[] =
+	{
+		TextureBarrier(accumTexture, ResourceStates::RenderTargetBit)
+	};
+	CmdBarrier(ARRAY_LEN(texBarriers), texBarriers);
+
+	CmdClearColorTarget(accumTexture, vec4_zero);
+
+	// project a point a few units in front of the main view onto a viewpoint with maximum displacement
+	// the distance to the clip space center (i.e. the 2D origin) is the maximum expected CoC
+	vec3_t testPoint;
+	VectorMA(cmd.viewParms.world.viewOrigin, 16.0f, cmd.viewParms.orient.axis[0], testPoint);
+	drawSceneViewCommand_t newCmd;
+	FixCommand(newCmd, cmd, 0, 0);
+	vec4_t eye, clip;
+	R_TransformModelToClip(testPoint, newCmd.viewParms.world.modelMatrix, newCmd.viewParms.projectionMatrix, eye, clip);
+	Vector4Scale(clip, 1.0f / clip[3], clip);
+	maxNearCocCS = sqrtf(clip[0] * clip[0] + clip[1] * clip[1]);
+
+	// same thing for a point far away
+	VectorMA(cmd.viewParms.world.viewOrigin, 69420.0f, cmd.viewParms.orient.axis[0], testPoint);
+	FixCommand(newCmd, cmd, 0, 0);
+	R_TransformModelToClip(testPoint, newCmd.viewParms.world.modelMatrix, newCmd.viewParms.projectionMatrix, eye, clip);
+	Vector4Scale(clip, 1.0f / clip[3], clip);
+	maxFarCocCS = sqrtf(clip[0] * clip[0] + clip[1] * clip[1]);
+}
+
+uint32_t AccumDepthOfField::GetSampleCount()
+{
+	switch(crp_accumDof_preview->integer)
+	{
+		case 1: return 3;
+		case 2: return 5;
+		default: break;
+	}
+
+	return 2 * crp_accumDof_samples->integer + 1;
+}
+
+void AccumDepthOfField::FixCommand(drawSceneViewCommand_t& newCmd, const drawSceneViewCommand_t& cmd, uint32_t x, uint32_t y)
+{
+	const float radius = crp_accumDof_radius->value;
+	const float tcScale = 1.0f / (float)(GetSampleCount() - 1);
+
+	vec2_t square01;
+	square01[0] = x * tcScale;
+	square01[1] = y * tcScale;
+	vec2_t polygon;
+	MapUnitSquareToPolygon(square01, crp_dof_blades->value, DEG2RAD(crp_dof_angle->value), polygon);
+
+	// 0=forward, 1=left, 2=up
+	vec3_t axis[3];
+	VectorCopy(cmd.viewParms.orient.axis[0], axis[0]);
+	VectorCopy(cmd.viewParms.orient.axis[1], axis[1]);
+	VectorCopy(cmd.viewParms.orient.axis[2], axis[2]);
+
+	vec3_t origin;
+	VectorMA(cmd.viewParms.world.viewOrigin, radius * polygon[0], axis[1], origin);
+	VectorMA(origin, radius * polygon[1], axis[2], origin);
+
+	vec3_t focusPoint;
+	VectorMA(cmd.viewParms.world.viewOrigin, crp_accumDof_focusDist->value, axis[0], focusPoint);
+	VectorSubtract(focusPoint, origin, axis[0]); // forward
+	VectorNormalize(axis[0]);
+	CrossProduct(axis[2], axis[0], axis[1]); // left
+	VectorNormalize(axis[1]);
+	CrossProduct(axis[0], axis[1], axis[2]); // up
+	VectorNormalize(axis[2]);
+
+	newCmd = cmd;
+	VectorCopy(origin, newCmd.viewParms.orient.origin);
+	VectorCopy(origin, newCmd.viewParms.world.viewOrigin);
+	R_CreateWorldModelMatrix(origin, axis, newCmd.viewParms.world.modelMatrix);
+	newCmd.viewParms.viewportWidth /= GetResolutionScale();
+	newCmd.viewParms.viewportHeight /= GetResolutionScale();
+
+	if(x == 0 && y == 0)
+	{
+		memcpy(modelViewMatrix, newCmd.viewParms.world.modelMatrix, sizeof(modelViewMatrix));
+		memcpy(projMatrix, newCmd.viewParms.projectionMatrix, sizeof(projMatrix));
+	}
+}
+
+void AccumDepthOfField::Accumulate()
+{
+	srp.renderMode = RenderMode::None;
+
+	SCOPED_RENDER_PASS("DOF Accum", 0.5f, 1.0f, 0.5f);
+
+	const TextureBarrier texBarriers[] =
+	{
+		TextureBarrier(crp.renderTarget, ResourceStates::PixelShaderAccessBit),
+		TextureBarrier(accumTexture, ResourceStates::RenderTargetBit)
+	};
+	CmdBarrier(ARRAY_LEN(texBarriers), texBarriers);
+
+	DOFAccumRC rc = {};
+	rc.textureIndex = GetTextureIndexSRV(crp.renderTarget);
+
+	CmdBindRenderTargets(1, &accumTexture, NULL);
+	CmdBindPipeline(accumPipeline);
+	CmdSetGraphicsRootConstants(0, sizeof(rc), &rc);
+	CmdDraw(3, 0);
+
+}
+
+void AccumDepthOfField::Normalize()
+{
+	srp.renderMode = RenderMode::None;
+
+	{
+		SCOPED_RENDER_PASS("DOF Norm", 0.5f, 1.0f, 0.5f);
+
+		const TextureBarrier texBarriers[] =
+		{
+			TextureBarrier(accumTexture, ResourceStates::PixelShaderAccessBit),
+			TextureBarrier(crp.renderTarget, ResourceStates::RenderTargetBit)
+		};
+		CmdBarrier(ARRAY_LEN(texBarriers), texBarriers);
+
+		DOFNormRC rc = {};
+		rc.textureIndex = GetTextureIndexSRV(accumTexture);
+
+		CmdBindRenderTargets(1, &crp.renderTarget, NULL);
+		CmdBindPipeline(normPipeline);
+		CmdSetGraphicsRootConstants(0, sizeof(rc), &rc);
+		CmdDraw(3, 0);
+	}
+
+	if(crp_accumDof_preview->integer)
+	{
+		crp.SwapRenderTargets();
+		const float scale = 1.0f / (float)GetResolutionScale();
+		const vec2_t tcScale = { scale, scale };
+		crp.Blit(crp.GetWriteRenderTarget(), crp.GetReadRenderTarget(), "DOF Upscale", true, tcScale, vec2_zero);
+	}
+}
+
+void AccumDepthOfField::DrawDebug()
+{
+	if(crp_dof_overlay->integer == 0)
+	{
+		return;
+	}
+
+	srp.renderMode = RenderMode::None;
+
+	SCOPED_RENDER_PASS("DOF Debug", 0.5f, 1.0f, 0.5f);
+
+	crp.SwapRenderTargets();
+	const TextureBarrier texBarriers[] =
+	{
+		TextureBarrier(crp.GetReadRenderTarget(), ResourceStates::PixelShaderAccessBit),
+		TextureBarrier(crp.depthTexture, ResourceStates::PixelShaderAccessBit),
+		TextureBarrier(crp.GetWriteRenderTarget(), ResourceStates::RenderTargetBit)
+	};
+	CmdBarrier(ARRAY_LEN(texBarriers), texBarriers);
+
+	float mvp[16];
+	DOFDebugRC rc = {};
+	rc.colorTextureIndex = GetTextureIndexSRV(crp.GetReadRenderTarget());
+	rc.depthTextureIndex = GetTextureIndexSRV(crp.depthTexture);
+	rc.debugMode = crp_dof_overlay->integer;
+	rc.focusDist = crp_accumDof_focusDist->value;
+	rc.maxNearCocCS = maxNearCocCS;
+	rc.maxFarCocCS = maxFarCocCS;
+	rc.tcScale = GetResolutionScale();
+	R_MultMatrix(modelViewMatrix, projMatrix, rc.mvp);
+	RB_LinearDepthConstants(&rc.linearDepthA, &rc.linearDepthB);
+	R_MultMatrix(backEnd.viewParms.world.modelMatrix, backEnd.viewParms.projectionMatrix, mvp);
+	R_InvMatrix(mvp, rc.invMvp);
+
+	CmdBindRenderTargets(1, &crp.renderTarget, NULL);
+	CmdBindPipeline(debugPipeline);
+	CmdSetGraphicsRootConstants(0, sizeof(rc), &rc);
+	CmdDraw(3, 0);
+}

code/renderer/crp_dof_gather.cpp

@@ -0,0 +1,479 @@
+/*
+===========================================================================
+Copyright (C) 2023-2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// Cinematic Rendering Pipeline - scatter-as-gather depth of field
+
+
+#include "crp_local.h"
+namespace debug
+{
+#include "compshaders/crp/gatherdof_debug_vs.h"
+#include "compshaders/crp/gatherdof_debug_ps.h"
+}
+namespace split
+{
+#include "compshaders/crp/gatherdof_split.h"
+}
+namespace near_coc_tile_gen
+{
+#include "compshaders/crp/gatherdof_coc_tile_gen.h"
+}
+namespace near_coc_tile_max
+{
+#include "compshaders/crp/gatherdof_coc_tile_max.h"
+}
+namespace blur
+{
+#include "compshaders/crp/gatherdof_blur.h"
+}
+namespace fill
+{
+#include "compshaders/crp/gatherdof_fill.h"
+}
+namespace combine
+{
+#include "compshaders/crp/gatherdof_combine_vs.h"
+#include "compshaders/crp/gatherdof_combine_ps.h"
+}
+
+
+#pragma pack(push, 4)
+
+struct DOFDebugRC
+{
+	uint32_t colorTextureIndex;
+	uint32_t depthTextureIndex;
+	uint32_t debugMode;
+	float linearDepthA;
+	float linearDepthB;
+	float focusNearMin;
+	float focusNearMax;
+	float focusFarMin;
+	float focusFarMax;
+	float focusDist;
+};
+
+struct DOFSplitRC
+{
+	uint32_t depthTextureIndex;
+	uint32_t colorTextureIndex;
+	uint32_t nearColorTextureIndex;
+	uint32_t farColorTextureIndex;
+	uint32_t nearCocTextureIndex;
+	uint32_t farCocTextureIndex;
+	float linearDepthA;
+	float linearDepthB;
+	float focusNearMin;
+	float focusNearMax;
+	float focusFarMin;
+	float focusFarMax;
+	float brightnessScale;
+};
+
+struct DOFNearCocMaxRC
+{
+	uint32_t inputTextureIndex;
+	uint32_t outputTextureIndex;
+	uint32_t samplerIndex;
+	int32_t kernelRadius;
+	float kernelDirectionX;
+	float kernelDirectionY;
+};
+
+struct DOFNearCocBlurRC
+{
+	uint32_t inputTextureIndex;
+	uint32_t outputTextureIndex;
+	uint32_t samplerIndex;
+	int32_t kernelRadius;
+	float kernelDirectionX;
+	float kernelDirectionY;
+};
+
+struct DOFNearCocTileGenRC
+{
+	uint32_t inputTextureIndex;
+	uint32_t outputTextureIndex;
+};
+
+struct DOFNearCocTileMaxRC
+{
+	uint32_t inputTextureIndex;
+	uint32_t outputTextureIndex;
+	uint32_t samplerIndex; // point/clamp
+};
+
+struct DOFBlurRC
+{
+	uint32_t colorTextureIndex;
+	uint32_t nearColorTextureIndex;
+	uint32_t nearMaxCocTextureIndex;
+	uint32_t nearCocTextureIndex; // blurry
+	uint32_t nearOutputTextureIndex;
+	uint32_t farColorTextureIndex;
+	uint32_t farCocTextureIndex; // sharp
+	uint32_t farOutputTextureIndex;
+	uint32_t samplerIndex; // linear/clamp
+	float brightnessScale;
+	float bladeCount;
+	float bokehAngleRad;
+};
+
+struct DOFFillRC
+{
+	uint32_t nearInputTextureIndex;
+	uint32_t nearOutputTextureIndex;
+	uint32_t farInputTextureIndex;
+	uint32_t farOutputTextureIndex;
+	uint32_t samplerIndex; // point/clamp
+};
+
+struct DOFCombineRC
+{
+	uint32_t nearTextureIndex;
+	uint32_t farTextureIndex;
+	uint32_t nearCocTextureIndex;
+	uint32_t farCocTextureIndex;
+	uint32_t sharpTextureIndex;
+	uint32_t samplerIndex; // point/clamp
+};
+
+#pragma pack(pop)
+
+
+void GatherDepthOfField::Init()
+{
+	const TextureFormat::Id renderTargetFormat = TextureFormat::RGBA64_Float;
+
+	tileWidth = (uint32_t)(glConfig.vidWidth + 15) / 16;
+	tileHeight = (uint32_t)(glConfig.vidHeight + 15) / 16;
+
+	{
+		ComputePipelineDesc desc("DOF split");
+		desc.shortLifeTime = true;
+		desc.shader = ShaderByteCode(split::g_cs);
+		splitPipeline = CreateComputePipeline(desc);
+	}
+
+	{
+		ComputePipelineDesc desc("DOF near CoC tile generation");
+		desc.shortLifeTime = true;
+		desc.shader = ShaderByteCode(near_coc_tile_gen::g_cs);
+		nearCocTileGenPipeline = CreateComputePipeline(desc);
+	}
+
+	{
+		ComputePipelineDesc desc("DOF near CoC tile dilation");
+		desc.shortLifeTime = true;
+		desc.shader = ShaderByteCode(near_coc_tile_max::g_cs);
+		nearCocTileMaxPipeline = CreateComputePipeline(desc);
+	}
+
+	{
+		ComputePipelineDesc desc("DOF blur");
+		desc.shortLifeTime = true;
+		desc.shader = ShaderByteCode(blur::g_cs);
+		blurPipeline = CreateComputePipeline(desc);
+	}
+
+	{
+		ComputePipelineDesc desc("DOF fill");
+		desc.shortLifeTime = true;
+		desc.shader = ShaderByteCode(fill::g_cs);
+		fillPipeline = CreateComputePipeline(desc);
+	}
+
+	{
+		GraphicsPipelineDesc desc("DOF combine");
+		desc.shortLifeTime = true;
+		desc.vertexShader = ShaderByteCode(combine::g_vs);
+		desc.pixelShader = ShaderByteCode(combine::g_ps);
+		desc.depthStencil.DisableDepth();
+		desc.rasterizer.cullMode = CT_TWO_SIDED;
+		desc.AddRenderTarget(0, renderTargetFormat);
+		combinePipeline = CreateGraphicsPipeline(desc);
+	}
+
+	{
+		GraphicsPipelineDesc desc("DOF viz");
+		desc.shortLifeTime = true;
+		desc.vertexShader = ShaderByteCode(debug::g_vs);
+		desc.pixelShader = ShaderByteCode(debug::g_ps);
+		desc.depthStencil.DisableDepth();
+		desc.rasterizer.cullMode = CT_TWO_SIDED;
+		desc.AddRenderTarget(0, renderTargetFormat);
+		debugPipeline = CreateGraphicsPipeline(desc);
+	}
+
+	{
+		TextureDesc desc("DOF far field color", glConfig.vidWidth, glConfig.vidHeight);
+		desc.shortLifeTime = true;
+		desc.committedResource = true;
+		desc.initialState = ResourceStates::UnorderedAccessBit;
+		desc.allowedState = ResourceStates::UnorderedAccessBit | ResourceStates::ComputeShaderAccessBit | ResourceStates::PixelShaderAccessBit;
+		desc.format = renderTargetFormat;
+		farColorTexture = CreateTexture(desc);
+		desc.name = "DOF near field color";
+		nearColorTexture = CreateTexture(desc);
+		desc.name = "DOF near field blurred color";
+		nearBlurTexture = CreateTexture(desc);
+		desc.name = "DOF far field blurred color";
+		farBlurTexture = CreateTexture(desc);
+
+		desc.format = TextureFormat::R8_UNorm;
+		desc.name = "DOF near field CoC #1";
+		nearCocTexture = CreateTexture(desc);
+		desc.name = "DOF near field CoC #2";
+		nearCocTexture2 = CreateTexture(desc);
+		desc.name = "DOF far field CoC";
+		farCocTexture = CreateTexture(desc);
+
+		desc.width = tileWidth;
+		desc.height = tileHeight;
+		desc.name = "DOF near field CoC tile #1";
+		nearCocTileTexture = CreateTexture(desc);
+		desc.name = "DOF near field CoC tile #2";
+		nearCocTileTexture2 = CreateTexture(desc);
+	}
+}
+
+void GatherDepthOfField::Draw()
+{
+	if(crp_dof->integer != DOFMethod::Gather)
+	{
+		return;
+	}
+
+	if(backEnd.viewParms.viewportX != 0 ||
+		backEnd.viewParms.viewportY != 0 ||
+		backEnd.viewParms.viewportWidth != glConfig.vidWidth ||
+		backEnd.viewParms.viewportHeight != glConfig.vidHeight)
+	{
+		return;
+	}
+
+	DrawSplit();
+	DrawNearCocTileGen();
+	DrawNearCocTileMax();
+	DrawBlur();
+	DrawFill();
+	DrawCombine();
+	DrawDebug();
+}
+
+void GatherDepthOfField::DrawDebug()
+{
+	if(crp_dof_overlay->integer == 0)
+	{
+		return;
+	}
+
+	SCOPED_RENDER_PASS("DOF Debug", 0.125f, 0.125f, 0.25f);
+
+	crp.SwapRenderTargets();
+	const TextureBarrier barriers[] =
+	{
+		TextureBarrier(crp.GetReadRenderTarget(), ResourceStates::PixelShaderAccessBit),
+		TextureBarrier(crp.depthTexture, ResourceStates::PixelShaderAccessBit),
+		TextureBarrier(crp.GetWriteRenderTarget(), ResourceStates::RenderTargetBit)
+	};
+	CmdBarrier(ARRAY_LEN(barriers), barriers);
+
+	DOFDebugRC rc = {};
+	rc.colorTextureIndex = GetTextureIndexSRV(crp.GetReadRenderTarget());
+	rc.depthTextureIndex = GetTextureIndexSRV(crp.depthTexture);
+	rc.debugMode = crp_dof_overlay->integer;
+	RB_LinearDepthConstants(&rc.linearDepthA, &rc.linearDepthB);
+	rc.focusNearMin = crp_gatherDof_focusNearDist->value - 0.5f * crp_gatherDof_focusNearRange->value;
+	rc.focusNearMax = crp_gatherDof_focusNearDist->value + 0.5f * crp_gatherDof_focusNearRange->value;
+	rc.focusFarMin = crp_gatherDof_focusFarDist->value - 0.5f * crp_gatherDof_focusFarRange->value;
+	rc.focusFarMax = crp_gatherDof_focusFarDist->value + 0.5f * crp_gatherDof_focusFarRange->value;
+	rc.focusDist = 0.5f * (rc.focusNearMax + rc.focusFarMin);
+
+	CmdBindRenderTargets(1, &crp.renderTarget, NULL);
+	CmdBindPipeline(debugPipeline);
+	CmdSetGraphicsRootConstants(0, sizeof(rc), &rc);
+	CmdDraw(3, 0);
+}
+
+void GatherDepthOfField::DrawSplit()
+{
+	SCOPED_RENDER_PASS("DOF Split", 0.125f, 0.125f, 0.25f);
+
+	const TextureBarrier barriers[] =
+	{
+		TextureBarrier(crp.depthTexture, ResourceStates::ComputeShaderAccessBit),
+		TextureBarrier(crp.renderTarget, ResourceStates::ComputeShaderAccessBit),
+		TextureBarrier(nearColorTexture, ResourceStates::UnorderedAccessBit),
+		TextureBarrier(farColorTexture, ResourceStates::UnorderedAccessBit),
+		TextureBarrier(nearCocTexture, ResourceStates::UnorderedAccessBit),
+		TextureBarrier(farCocTexture, ResourceStates::UnorderedAccessBit)
+	};
+	CmdBarrier(ARRAY_LEN(barriers), barriers);
+
+	DOFSplitRC rc = {};
+	rc.depthTextureIndex = GetTextureIndexSRV(crp.depthTexture);
+	rc.colorTextureIndex = GetTextureIndexSRV(crp.renderTarget);
+	rc.nearColorTextureIndex = GetTextureIndexUAV(nearColorTexture, 0);
+	rc.farColorTextureIndex = GetTextureIndexUAV(farColorTexture, 0);
+	rc.nearCocTextureIndex = GetTextureIndexUAV(nearCocTexture, 0);
+	rc.farCocTextureIndex = GetTextureIndexUAV(farCocTexture, 0);
+	RB_LinearDepthConstants(&rc.linearDepthA, &rc.linearDepthB);
+	rc.focusNearMin = crp_gatherDof_focusNearDist->value - 0.5f * crp_gatherDof_focusNearRange->value;
+	rc.focusNearMax = crp_gatherDof_focusNearDist->value + 0.5f * crp_gatherDof_focusNearRange->value;
+	rc.focusFarMin = crp_gatherDof_focusFarDist->value - 0.5f * crp_gatherDof_focusFarRange->value;
+	rc.focusFarMax = crp_gatherDof_focusFarDist->value + 0.5f * crp_gatherDof_focusFarRange->value;
+	rc.brightnessScale = crp_gatherDof_brightness->value;
+
+	CmdBindPipeline(splitPipeline);
+	CmdSetComputeRootConstants(0, sizeof(rc), &rc);
+	CmdDispatch((glConfig.vidWidth + 7) / 8, (glConfig.vidHeight + 7) / 8, 1);
+}
+
+void GatherDepthOfField::DrawNearCocTileGen()
+{
+	SCOPED_RENDER_PASS("DOF Tile Gen", 0.125f, 0.125f, 0.25f);
+
+	const TextureBarrier barriers[] =
+	{
+		TextureBarrier(nearCocTexture, ResourceStates::ComputeShaderAccessBit),
+		TextureBarrier(nearCocTileTexture, ResourceStates::UnorderedAccessBit)
+	};
+	CmdBarrier(ARRAY_LEN(barriers), barriers);
+
+	DOFNearCocTileGenRC rc = {};
+	rc.inputTextureIndex = GetTextureIndexSRV(nearCocTexture);
+	rc.outputTextureIndex = GetTextureIndexUAV(nearCocTileTexture, 0);
+
+	CmdBindPipeline(nearCocTileGenPipeline);
+	CmdSetComputeRootConstants(0, sizeof(rc), &rc);
+	CmdDispatch((tileWidth + 7) / 8, (tileHeight + 7) / 8, 1);
+}
+
+void GatherDepthOfField::DrawNearCocTileMax()
+{
+	SCOPED_RENDER_PASS("DOF Tile Max", 0.125f, 0.125f, 0.25f);
+
+	const TextureBarrier barriers[] =
+	{
+		TextureBarrier(nearCocTileTexture, ResourceStates::ComputeShaderAccessBit),
+		TextureBarrier(nearCocTileTexture2, ResourceStates::UnorderedAccessBit)
+	};
+	CmdBarrier(ARRAY_LEN(barriers), barriers);
+
+	DOFNearCocTileMaxRC rc = {};
+	rc.inputTextureIndex = GetTextureIndexSRV(nearCocTileTexture);
+	rc.outputTextureIndex = GetTextureIndexUAV(nearCocTileTexture2, 0);
+	rc.samplerIndex = GetSamplerIndex(TW_CLAMP_TO_EDGE, TextureFilter::Point);
+
+	CmdBindPipeline(nearCocTileMaxPipeline);
+	CmdSetComputeRootConstants(0, sizeof(rc), &rc);
+	CmdDispatch((tileWidth + 7) / 8, (tileHeight + 7) / 8, 1);
+}
+
+void GatherDepthOfField::DrawBlur()
+{
+	SCOPED_RENDER_PASS("DOF Blur", 0.125f, 0.125f, 0.25f);
+
+	const TextureBarrier barriers[] =
+	{
+		TextureBarrier(crp.renderTarget, ResourceStates::ComputeShaderAccessBit),
+		TextureBarrier(nearColorTexture, ResourceStates::ComputeShaderAccessBit),
+		TextureBarrier(farColorTexture, ResourceStates::ComputeShaderAccessBit),
+		TextureBarrier(nearCocTexture, ResourceStates::ComputeShaderAccessBit),
+		TextureBarrier(nearCocTileTexture2, ResourceStates::ComputeShaderAccessBit),
+		TextureBarrier(farCocTexture, ResourceStates::ComputeShaderAccessBit),
+		TextureBarrier(nearBlurTexture, ResourceStates::UnorderedAccessBit),
+		TextureBarrier(farBlurTexture, ResourceStates::UnorderedAccessBit)
+	};
+	CmdBarrier(ARRAY_LEN(barriers), barriers);
+
+	DOFBlurRC rc = {};
+	rc.colorTextureIndex = GetTextureIndexSRV(crp.renderTarget);
+	rc.nearColorTextureIndex = GetTextureIndexSRV(nearColorTexture);
+	rc.nearMaxCocTextureIndex = GetTextureIndexSRV(nearCocTileTexture2);
+	rc.nearCocTextureIndex = GetTextureIndexSRV(nearCocTexture);
+	rc.nearOutputTextureIndex = GetTextureIndexUAV(nearBlurTexture, 0);
+	rc.farColorTextureIndex = GetTextureIndexSRV(farColorTexture);
+	rc.farCocTextureIndex = GetTextureIndexSRV(farCocTexture);
+	rc.farOutputTextureIndex = GetTextureIndexUAV(farBlurTexture, 0);
+	rc.samplerIndex = GetSamplerIndex(TW_CLAMP_TO_EDGE, TextureFilter::Linear);
+	rc.brightnessScale = crp_gatherDof_brightness->value;
+	rc.bladeCount = crp_dof_blades->value;
+	rc.bokehAngleRad = DEG2RAD(crp_dof_angle->value);
+
+	CmdBindPipeline(blurPipeline);
+	CmdSetComputeRootConstants(0, sizeof(rc), &rc);
+	CmdDispatch((glConfig.vidWidth + 7) / 8, (glConfig.vidHeight + 7) / 8, 1);
+}
+
+void GatherDepthOfField::DrawFill()
+{
+	SCOPED_RENDER_PASS("DOF Fill", 0.125f, 0.125f, 0.25f);
+
+	const TextureBarrier barriers[] =
+	{
+		TextureBarrier(nearBlurTexture, ResourceStates::ComputeShaderAccessBit),
+		TextureBarrier(farBlurTexture, ResourceStates::ComputeShaderAccessBit),
+		TextureBarrier(nearColorTexture, ResourceStates::UnorderedAccessBit),
+		TextureBarrier(farColorTexture, ResourceStates::UnorderedAccessBit)
+	};
+	CmdBarrier(ARRAY_LEN(barriers), barriers);
+
+	DOFFillRC rc = {};
+	rc.nearInputTextureIndex = GetTextureIndexSRV(nearBlurTexture);
+	rc.farInputTextureIndex = GetTextureIndexSRV(farBlurTexture);
+	rc.nearOutputTextureIndex = GetTextureIndexUAV(nearColorTexture, 0);
+	rc.farOutputTextureIndex = GetTextureIndexUAV(farColorTexture, 0);
+	rc.samplerIndex = GetSamplerIndex(TW_CLAMP_TO_EDGE, TextureFilter::Point);
+
+	CmdBindPipeline(fillPipeline);
+	CmdSetComputeRootConstants(0, sizeof(rc), &rc);
+	CmdDispatch((glConfig.vidWidth + 7) / 8, (glConfig.vidHeight + 7) / 8, 1);
+}
+
+void GatherDepthOfField::DrawCombine()
+{
+	SCOPED_RENDER_PASS("DOF Combine", 0.125f, 0.125f, 0.25f);
+
+	const TextureBarrier barriers[] =
+	{
+		TextureBarrier(nearColorTexture, ResourceStates::PixelShaderAccessBit),
+		TextureBarrier(farColorTexture, ResourceStates::PixelShaderAccessBit),
+		TextureBarrier(nearCocTexture, ResourceStates::PixelShaderAccessBit),
+		TextureBarrier(farCocTexture, ResourceStates::PixelShaderAccessBit),
+		TextureBarrier(crp.GetReadRenderTarget(), ResourceStates::PixelShaderAccessBit),
+		TextureBarrier(crp.GetWriteRenderTarget(), ResourceStates::RenderTargetBit)
+	};
+	CmdBarrier(ARRAY_LEN(barriers), barriers);
+
+	DOFCombineRC rc = {};
+	rc.nearTextureIndex = GetTextureIndexSRV(nearColorTexture);
+	rc.farTextureIndex = GetTextureIndexSRV(farColorTexture);
+	rc.nearCocTextureIndex = GetTextureIndexSRV(nearCocTexture);
+	rc.farCocTextureIndex = GetTextureIndexSRV(farCocTexture);
+	rc.sharpTextureIndex = GetTextureIndexSRV(crp.renderTarget);
+	rc.samplerIndex = GetSamplerIndex(TW_CLAMP_TO_EDGE, TextureFilter::Point);
+
+	CmdBindRenderTargets(1, &crp.renderTarget, NULL);
+	CmdBindPipeline(combinePipeline);
+	CmdSetGraphicsRootConstants(0, sizeof(rc), &rc);
+	CmdDraw(3, 0);
+}

code/renderer/crp_fog.cpp

@@ -0,0 +1,208 @@
+/*
+===========================================================================
+Copyright (C) 2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// Cinematic Rendering Pipeline - fog volumes
+
+
+#include "crp_local.h"
+namespace fog_outside
+{
+#include "compshaders/crp/fog_outside_vs.h"
+#include "compshaders/crp/fog_outside_ps.h"
+}
+namespace fog_inside
+{
+#include "compshaders/crp/fog_inside_vs.h"
+#include "compshaders/crp/fog_inside_ps.h"
+}
+
+
+#pragma pack(push, 4)
+struct FogRC
+{
+	float modelViewMatrix[16];
+	float projectionMatrix[16];
+	float boxMin[4];
+	float boxMax[4];
+	float color[4];
+	float depth;
+	float linearDepthA;
+	float linearDepthB;
+	uint32_t depthTextureIndex;
+};
+#pragma pack(pop)
+
+
+void Fog::Init()
+{
+	{
+		const uint32_t indices[] =
+		{
+			0, 1, 2, 2, 1, 3,
+			4, 0, 6, 6, 0, 2,
+			7, 5, 6, 6, 5, 4,
+			3, 1, 7, 7, 1, 5,
+			4, 5, 0, 0, 5, 1,
+			3, 7, 2, 2, 7, 6
+		};
+
+		BufferDesc desc("box index", sizeof(indices), ResourceStates::IndexBufferBit);
+		desc.shortLifeTime = true;
+		boxIndexBuffer = CreateBuffer(desc);
+
+		uint8_t* mapped = BeginBufferUpload(boxIndexBuffer);
+		memcpy(mapped, indices, sizeof(indices));
+		EndBufferUpload(boxIndexBuffer);
+	}
+	{
+		const float vertices[] =
+		{
+			0.0f, 1.0f, 0.0f,
+			1.0f, 1.0f, 0.0f,
+			0.0f, 0.0f, 0.0f,
+			1.0f, 0.0f, 0.0f,
+			0.0f, 1.0f, 1.0f,
+			1.0f, 1.0f, 1.0f,
+			0.0f, 0.0f, 1.0f,
+			1.0f, 0.0f, 1.0f
+		};
+
+		BufferDesc desc("box vertex", sizeof(vertices), ResourceStates::VertexBufferBit);
+		desc.shortLifeTime = true;
+		boxVertexBuffer = CreateBuffer(desc);
+
+		uint8_t* mapped = BeginBufferUpload(boxVertexBuffer);
+		memcpy(mapped, vertices, sizeof(vertices));
+		EndBufferUpload(boxVertexBuffer);
+	}
+	{
+		GraphicsPipelineDesc desc("fog outside");
+		desc.shortLifeTime = true;
+		desc.vertexShader = ShaderByteCode(fog_outside::g_vs);
+		desc.pixelShader = ShaderByteCode(fog_outside::g_ps);
+		desc.depthStencil.DisableDepth();
+		desc.rasterizer.cullMode = CT_BACK_SIDED;
+		desc.rasterizer.polygonOffset = false;
+		desc.rasterizer.clampDepth = true;
+		desc.AddRenderTarget(GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA, crp.renderTargetFormat);
+		desc.vertexLayout.AddAttribute(0, ShaderSemantic::Position, DataType::Float32, 3, 0);
+		fogOutsidePipeline = CreateGraphicsPipeline(desc);
+	}
+	{
+		GraphicsPipelineDesc desc("fog inside");
+		desc.shortLifeTime = true;
+		desc.vertexShader = ShaderByteCode(fog_inside::g_vs);
+		desc.pixelShader = ShaderByteCode(fog_inside::g_ps);
+		desc.depthStencil.DisableDepth();
+		desc.rasterizer.cullMode = CT_FRONT_SIDED;
+		desc.rasterizer.polygonOffset = false;
+		desc.rasterizer.clampDepth = true;
+		desc.AddRenderTarget(GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA, crp.renderTargetFormat);
+		desc.vertexLayout.AddAttribute(0, ShaderSemantic::Position, DataType::Float32, 3, 0);
+		fogInsidePipeline = CreateGraphicsPipeline(desc);
+	}
+}
+
+void Fog::Draw()
+{
+	// @NOTE: fog 0 is invalid, it must be skipped
+	if(tr.world == NULL ||
+		tr.world->numfogs <= 1 ||
+		(backEnd.refdef.rdflags & RDF_NOWORLDMODEL) != 0)
+	{
+		return;
+	}
+
+	SCOPED_RENDER_PASS("Fog", 0.25f, 0.125f, 0.0f);
+
+	srp.renderMode = RenderMode::World;
+
+	const uint32_t stride = sizeof(vec3_t);
+	CmdBindVertexBuffers(1, &boxVertexBuffer, &stride, NULL);
+	CmdBindIndexBuffer(boxIndexBuffer, IndexType::UInt32, 0);
+
+	const TextureBarrier barriers[] =
+	{
+		TextureBarrier(crp.depthTexture, ResourceStates::PixelShaderAccessBit),
+		TextureBarrier(crp.renderTarget, ResourceStates::RenderTargetBit)
+	};
+	CmdBarrier(ARRAY_LEN(barriers), barriers);
+
+	CmdBindRenderTargets(1, &crp.renderTarget, NULL);
+
+	int insideIndex = -1;
+	for(int f = 1; f < tr.world->numfogs; ++f)
+	{
+		const fog_t& fog = tr.world->fogs[f];
+
+		bool inside = true;
+		for(int a = 0; a < 3; ++a)
+		{
+			if(backEnd.viewParms.orient.origin[a] <= fog.bounds[0][a] ||
+				backEnd.viewParms.orient.origin[a] >= fog.bounds[1][a])
+			{
+				inside = false;
+				break;
+			}
+		}
+
+		if(inside)
+		{
+			insideIndex = f;
+			break;
+		}
+	}
+
+	FogRC rc = {};
+	memcpy(rc.modelViewMatrix, backEnd.viewParms.world.modelMatrix, sizeof(rc.modelViewMatrix));
+	memcpy(rc.projectionMatrix, backEnd.viewParms.projectionMatrix, sizeof(rc.projectionMatrix));
+	RB_LinearDepthConstants(&rc.linearDepthA, &rc.linearDepthB);
+	rc.depthTextureIndex = GetTextureIndexSRV(crp.depthTexture);
+
+	CmdBindPipeline(fogOutsidePipeline);
+	for(int f = 1; f < tr.world->numfogs; ++f)
+	{
+		if(f == insideIndex)
+		{
+			continue;
+		}
+
+		const fog_t& fog = tr.world->fogs[f];
+		VectorScale(fog.parms.color, tr.identityLight, rc.color);
+		rc.depth = fog.parms.depthForOpaque;
+		VectorCopy(fog.bounds[0], rc.boxMin);
+		VectorCopy(fog.bounds[1], rc.boxMax);
+		CmdSetGraphicsRootConstants(0, sizeof(rc), &rc);
+		CmdDrawIndexed(36, 0, 0);
+	}
+
+	if(insideIndex > 0)
+	{
+		CmdBindPipeline(fogInsidePipeline);
+
+		const fog_t& fog = tr.world->fogs[insideIndex];
+		VectorScale(fog.parms.color, tr.identityLight, rc.color);
+		rc.depth = fog.parms.depthForOpaque;
+		VectorCopy(fog.bounds[0], rc.boxMin);
+		VectorCopy(fog.bounds[1], rc.boxMax);
+		CmdSetGraphicsRootConstants(0, sizeof(rc), &rc);
+		CmdDrawIndexed(36, 0, 0);
+	}
+}

code/renderer/crp_geometry.cpp

@@ -0,0 +1,155 @@
+/*
+===========================================================================
+Copyright (C) 2023-2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// Cinematic Rendering Pipeline - vertex and index buffer management
+
+
+#include "crp_local.h"
+
+
+void GeoBuffers::Create(const char* name, uint32_t vertexCount, uint32_t indexCount)
+{
+	baseVertexBuffers[BaseBufferId::Position].CreateVertexBuffer(
+		va("%s position", name), MemoryUsage::Upload, vertexCount, sizeof(vec3_t));
+	baseVertexBuffers[BaseBufferId::Normal].CreateVertexBuffer(
+		va("%s normal", name), MemoryUsage::Upload, vertexCount, sizeof(vec3_t));
+	stageVertexBuffers[StageBufferId::TexCoords].CreateVertexBuffer(
+		va("%s tc", name), MemoryUsage::Upload, vertexCount * MAX_SHADER_STAGES, sizeof(vec2_t));
+	stageVertexBuffers[StageBufferId::Color].CreateVertexBuffer(
+		va("%s color", name), MemoryUsage::Upload, vertexCount * MAX_SHADER_STAGES, sizeof(color4ub_t));
+	indexBuffer.Create(name, MemoryUsage::Upload, indexCount);
+
+	vertexBuffers[0] = baseVertexBuffers[BaseBufferId::Position].buffer;
+	vertexBuffers[1] = baseVertexBuffers[BaseBufferId::Normal].buffer;
+	vertexBuffers[2] = stageVertexBuffers[StageBufferId::TexCoords].buffer;
+	vertexBuffers[3] = stageVertexBuffers[StageBufferId::Color].buffer;
+	vertexBufferStrides[0] = sizeof(vec3_t);
+	vertexBufferStrides[1] = sizeof(vec3_t);
+	vertexBufferStrides[2] = sizeof(vec2_t);
+	vertexBufferStrides[3] = sizeof(color4ub_t);
+}
+
+void GeoBuffers::Rewind()
+{
+	for(uint32_t b = 0; b < ARRAY_LEN(baseVertexBuffers); ++b)
+	{
+		baseVertexBuffers[b].Rewind();
+	}
+	for(uint32_t b = 0; b < ARRAY_LEN(stageVertexBuffers); ++b)
+	{
+		stageVertexBuffers[b].Rewind();
+	}
+	indexBuffer.Rewind();
+}
+
+void GeoBuffers::BeginUpload()
+{
+	for(uint32_t b = 0; b < ARRAY_LEN(baseVertexBuffers); ++b)
+	{
+		baseVertexBuffers[b].BeginUpload();
+	}
+	for(uint32_t b = 0; b < ARRAY_LEN(stageVertexBuffers); ++b)
+	{
+		stageVertexBuffers[b].BeginUpload();
+	}
+	indexBuffer.BeginUpload();
+}
+
+void GeoBuffers::EndUpload()
+{
+	for(uint32_t b = 0; b < ARRAY_LEN(baseVertexBuffers); ++b)
+	{
+		baseVertexBuffers[b].EndUpload();
+	}
+	for(uint32_t b = 0; b < ARRAY_LEN(stageVertexBuffers); ++b)
+	{
+		stageVertexBuffers[b].EndUpload();
+	}
+	indexBuffer.EndUpload();
+}
+
+void GeoBuffers::UploadBase()
+{
+	indexBuffer.Upload();
+
+	const uint32_t batchOffset = baseVertexBuffers[0].batchFirst + baseVertexBuffers[0].batchCount;
+
+	float* pos = (float*)baseVertexBuffers[BaseBufferId::Position].mapped + 3 * batchOffset;
+	for(int v = 0; v < tess.numVertexes; ++v)
+	{
+		pos[0] = tess.xyz[v][0];
+		pos[1] = tess.xyz[v][1];
+		pos[2] = tess.xyz[v][2];
+		pos += 3;
+	}
+
+	float* nor = (float*)baseVertexBuffers[BaseBufferId::Normal].mapped + 3 * batchOffset;
+	for(int v = 0; v < tess.numVertexes; ++v)
+	{
+		nor[0] = tess.normal[v][0];
+		nor[1] = tess.normal[v][1];
+		nor[2] = tess.normal[v][2];
+		nor += 3;
+	}
+}
+
+void GeoBuffers::UploadStage(uint32_t svarsIndex)
+{
+	const uint32_t batchOffset = stageVertexBuffers[0].batchFirst + stageVertexBuffers[0].batchCount;
+	const stageVars_t& sv = tess.svars[svarsIndex];
+
+	uint8_t* const tcBuffer = stageVertexBuffers[StageBufferId::TexCoords].mapped;
+	float* tc = (float*)tcBuffer + 2 * batchOffset;
+	memcpy(tc, &sv.texcoords[0], tess.numVertexes * sizeof(vec2_t));
+
+	uint8_t* const colBuffer = stageVertexBuffers[StageBufferId::Color].mapped;
+	uint32_t* col = (uint32_t*)colBuffer + batchOffset;
+	memcpy(col, &sv.colors[0], tess.numVertexes * sizeof(color4ub_t));
+}
+
+void GeoBuffers::EndBaseBatch(uint32_t vertexCount)
+{
+	baseVertexBuffers[BaseBufferId::Position].EndBatch(vertexCount);
+	baseVertexBuffers[BaseBufferId::Normal].EndBatch(vertexCount);
+	indexBuffer.EndBatch(tess.numIndexes);
+}
+
+bool GeoBuffers::CanAdd(uint32_t vertexCount, uint32_t indexCount, uint32_t stageCount)
+{
+	return
+		baseVertexBuffers[0].CanAdd(vertexCount) &&
+		stageVertexBuffers[0].CanAdd(vertexCount * stageCount) &&
+		indexBuffer.CanAdd(indexCount);
+}
+
+void GeoBuffers::DrawStage(uint32_t vertexCount, uint32_t indexCount)
+{
+	const uint32_t vertexOffset = stageVertexBuffers[0].batchFirst - baseVertexBuffers[0].batchFirst;
+	uint32_t byteOffsets[BaseBufferId::Count + StageBufferId::Count] = {};
+	byteOffsets[BaseBufferId::Count + StageBufferId::TexCoords] = vertexOffset * sizeof(vec2_t);
+	byteOffsets[BaseBufferId::Count + StageBufferId::Color] = vertexOffset * sizeof(color4ub_t);
+	CmdBindVertexBuffers(ARRAY_LEN(vertexBuffers), vertexBuffers, vertexBufferStrides, byteOffsets);
+
+	CmdDrawIndexed(indexCount, indexBuffer.batchFirst, baseVertexBuffers[0].batchFirst);
+
+	// @NOTE: must happen after the final vertex buffer byte offsets have been computed
+	stageVertexBuffers[StageBufferId::TexCoords].EndBatch(vertexCount);
+	stageVertexBuffers[StageBufferId::Color].EndBatch(vertexCount);
+}

code/renderer/crp_local.h

@@ -0,0 +1,330 @@
+/*
+===========================================================================
+Copyright (C) 2023 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// Cinematic Rendering Pipeline - private declarations
+
+
+#pragma once
+
+
+#include "srp_local.h"
+
+
+extern cvar_t* crp_dof;
+extern cvar_t* crp_dof_overlay;
+extern cvar_t* crp_dof_blades;
+extern cvar_t* crp_dof_angle;
+extern cvar_t* crp_gatherDof_focusNearDist;
+extern cvar_t* crp_gatherDof_focusNearRange;
+extern cvar_t* crp_gatherDof_focusFarDist;
+extern cvar_t* crp_gatherDof_focusFarRange;
+extern cvar_t* crp_gatherDof_brightness;
+extern cvar_t* crp_accumDof_focusDist;
+extern cvar_t* crp_accumDof_radius;
+extern cvar_t* crp_accumDof_samples;
+extern cvar_t* crp_accumDof_preview;
+
+struct DOFMethod
+{
+	enum Id
+	{
+		None,
+		Gather,
+		Accumulation,
+		Count
+	};
+};
+
+struct Tessellator
+{
+	enum Id
+	{
+		None,
+		Opaque,
+		Transp,
+		Count
+	};
+};
+
+
+using namespace RHI;
+
+
+struct WorldVertexRC
+{
+	float modelViewMatrix[16];
+	float projectionMatrix[16];
+	float clipPlane[4];
+};
+
+struct PSOCache
+{
+	struct Entry
+	{
+		GraphicsPipelineDesc desc;
+		HPipeline handle;
+	};
+
+	void Init(Entry* entries, uint32_t maxEntryCount);
+	int AddPipeline(const GraphicsPipelineDesc& desc, const char* name);
+	
+	Entry* entries = NULL;
+	uint32_t maxEntryCount = 0;
+	uint32_t entryCount = 1; // we treat index 0 as invalid
+};
+
+struct WorldOpaque
+{
+	void Init();
+	void Draw(const drawSceneViewCommand_t& cmd);
+	void ProcessShader(shader_t& shader);
+	void TessellationOverflow();
+	void DrawSkyBox();
+	void DrawClouds();
+
+private:
+	void BeginBatch(const shader_t* shader);
+	void EndBatch();
+	void EndSkyBatch();
+
+	PSOCache::Entry psoCacheEntries[128];
+	PSOCache psoCache;
+
+	float clipPlane[4];
+	bool batchOldDepthHack;
+	bool batchDepthHack;
+};
+
+struct WorldTransp
+{
+	void Init();
+	void Draw(const drawSceneViewCommand_t& cmd);
+	void ProcessShader(shader_t& shader);
+	void TessellationOverflow();
+
+private:
+	void BeginBatch(const shader_t* shader);
+	void EndBatch();
+
+	PSOCache::Entry psoCacheEntries[32];
+	PSOCache psoCache;
+
+	float clipPlane[4];
+	bool batchOldDepthHack;
+	bool batchDepthHack;
+};
+
+struct Fog
+{
+	void Init();
+	void Draw();
+
+private:
+	HBuffer boxIndexBuffer;
+	HBuffer boxVertexBuffer;
+	HPipeline fogInsidePipeline;
+	HPipeline fogOutsidePipeline;
+};
+
+struct TranspResolve
+{
+	void Init();
+	void Draw(const drawSceneViewCommand_t& cmd);
+
+private:
+	HPipeline pipeline;
+};
+
+struct ToneMap
+{
+	void Init();
+	void DrawToneMap();
+	void DrawInverseToneMap();
+
+private:
+	HPipeline pipeline;
+	HPipeline inversePipeline;
+};
+
+struct AccumDepthOfField
+{
+	void Init();
+	void Begin(const drawSceneViewCommand_t& cmd);
+	uint32_t GetSampleCount();
+	void FixCommand(drawSceneViewCommand_t& newCmd, const drawSceneViewCommand_t& cmd, uint32_t x, uint32_t y);
+	void Accumulate();
+	void Normalize();
+	void DrawDebug();
+
+private:
+	HPipeline accumPipeline;
+	HPipeline normPipeline;
+	HPipeline debugPipeline;
+	HTexture accumTexture;
+	float maxNearCocCS;
+	float maxFarCocCS;
+	float modelViewMatrix[16];
+	float projMatrix[16];
+};
+
+struct GatherDepthOfField
+{
+	void Init();
+	void Draw();
+
+private:
+	void DrawDebug();
+	void DrawSplit();
+	void DrawNearCocTileGen();
+	void DrawNearCocTileMax();
+	void DrawBlur();
+	void DrawFill();
+	void DrawCombine();
+
+	HPipeline debugPipeline;
+	HPipeline splitPipeline;
+	HPipeline nearCocTileGenPipeline;
+	HPipeline nearCocTileMaxPipeline;
+	HPipeline blurPipeline;
+	HPipeline fillPipeline;
+	HPipeline combinePipeline;
+	HTexture nearColorTexture;
+	HTexture farColorTexture;
+	HTexture nearBlurTexture;
+	HTexture farBlurTexture;
+	HTexture nearCocTexture;
+	HTexture nearCocTexture2;
+	HTexture nearCocTileTexture;
+	HTexture nearCocTileTexture2;
+	HTexture farCocTexture;
+	uint32_t tileWidth;
+	uint32_t tileHeight;
+};
+
+struct BaseBufferId
+{
+	enum Id
+	{
+		Position,
+		Normal,
+		Count
+	};
+};
+
+struct StageBufferId
+{
+	enum Id
+	{
+		TexCoords,
+		Color,
+		Count
+	};
+};
+
+struct GeoBuffers
+{
+	void Create(const char* name, uint32_t vertexCount, uint32_t indexCount);
+	void Rewind();
+	void BeginUpload();
+	void EndUpload();
+	void UploadBase();
+	void UploadStage(uint32_t svarsIndex);
+	void EndBaseBatch(uint32_t vertexCount);
+	bool CanAdd(uint32_t vertexCount, uint32_t indexCount, uint32_t stageCount);
+	void DrawStage(uint32_t vertexCount, uint32_t indexCount);
+
+	GeometryBuffer baseVertexBuffers[BaseBufferId::Count];
+	GeometryBuffer stageVertexBuffers[StageBufferId::Count];
+	IndexBuffer indexBuffer;
+	HBuffer vertexBuffers[BaseBufferId::Count + StageBufferId::Count];
+	uint32_t vertexBufferStrides[BaseBufferId::Count + StageBufferId::Count];
+};
+
+struct CRP : IRenderPipeline
+{
+	void Init() override;
+	void ShutDown(bool fullShutDown) override;
+
+	void ProcessWorld(world_t& world) override;
+	void ProcessModel(model_t& model) override;
+	void ProcessShader(shader_t& shader) override;
+
+	void CreateTexture(image_t* image, int mipCount, int width, int height) override;
+	void UpoadTextureAndGenerateMipMaps(image_t* image, const byte* data) override;
+	void BeginTextureUpload(MappedTexture& mappedTexture, image_t* image) override;
+	void EndTextureUpload() override;
+	
+	void ExecuteRenderCommands(const byte* data, bool readbackRequested) override;
+	void TessellationOverflow() override;
+	void DrawSkyBox() override { opaque.DrawSkyBox(); }
+	void DrawClouds() override { opaque.DrawClouds(); }
+	void ReadPixels(int w, int h, int alignment, colorSpace_t colorSpace, void* out) override;
+
+	uint32_t GetSamplerDescriptorIndexFromBaseIndex(uint32_t baseIndex) override;
+
+	void BeginFrame();
+	void EndFrame();
+
+	void Blit(HTexture destination, HTexture source, const char* passName, bool hdr, const vec2_t tcScale, const vec2_t tcBias);
+	void BlitRenderTarget(HTexture destination, const char* passName);
+	void DrawSceneView(const drawSceneViewCommand_t& cmd);
+
+	HTexture GetReadRenderTarget();
+	HTexture GetWriteRenderTarget();
+	void SwapRenderTargets();
+
+	// general
+	float frameSeed;
+	HTexture readbackRenderTarget;
+	HTexture depthTexture;
+	HTexture renderTarget;
+	TextureFormat::Id renderTargetFormat;
+	HTexture renderTargets[2];
+	uint32_t renderTargetIndex; // the one to write to
+	HSampler samplers[BASE_SAMPLER_COUNT]; // all base samplers
+	uint32_t samplerIndices[BASE_SAMPLER_COUNT]; // descriptor heap indices
+
+	// blit
+	HPipeline blitPipelineLDR;
+	HPipeline blitPipelineHDR;
+
+	// world geometry
+	GeoBuffers dynBuffers[FrameCount]; // for rendering world surfaces
+
+	// for rendering transparent world surfaces
+	HTexture oitIndexTexture;
+	HBuffer oitFragmentBuffer;
+	HBuffer oitCounterBuffer;
+	HBuffer oitCounterStagingBuffer;
+
+	UI ui;
+	MipMapGenerator mipMapGen;
+	ImGUI imgui;
+	Nuklear nuklear;
+	WorldOpaque opaque;
+	WorldTransp transp;
+	TranspResolve transpResolve;
+	ToneMap toneMap;
+	GatherDepthOfField gatherDof;
+	AccumDepthOfField accumDof;
+	Fog fog;
+};
+
+extern CRP crp;

code/renderer/crp_main.cpp

@@ -0,0 +1,677 @@
+/*
+===========================================================================
+Copyright (C) 2023-2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// Cinematic Rendering Pipeline - main interface
+
+
+#include "crp_local.h"
+#include "../client/cl_imgui.h"
+#include "shaders/crp/oit.h.hlsli"
+namespace blit
+{
+#include "compshaders/crp/blit_vs.h"
+#include "compshaders/crp/blit_ps.h"
+}
+namespace ui
+{
+#include "compshaders/crp/ui_vs.h"
+#include "compshaders/crp/ui_ps.h"
+}
+namespace imgui
+{
+#include "compshaders/crp/imgui_vs.h"
+#include "compshaders/crp/imgui_ps.h"
+}
+namespace nuklear
+{
+#include "compshaders/crp/nuklear_vs.h"
+#include "compshaders/crp/nuklear_ps.h"
+}
+namespace mip_1
+{
+#include "compshaders/crp/mip_1_cs.h"
+}
+namespace mip_2
+{
+#include "compshaders/crp/mip_2_cs.h"
+}
+namespace mip_3
+{
+#include "compshaders/crp/mip_3_cs.h"
+}
+
+
+CRP crp;
+IRenderPipeline* crpp = &crp;
+
+cvar_t* crp_dof;
+cvar_t* crp_dof_overlay;
+cvar_t* crp_dof_blades;
+cvar_t* crp_dof_angle;
+cvar_t* crp_gatherDof_focusNearDist;
+cvar_t* crp_gatherDof_focusNearRange;
+cvar_t* crp_gatherDof_focusFarDist;
+cvar_t* crp_gatherDof_focusFarRange;
+cvar_t* crp_gatherDof_brightness;
+cvar_t* crp_accumDof_focusDist;
+cvar_t* crp_accumDof_radius;
+cvar_t* crp_accumDof_samples;
+cvar_t* crp_accumDof_preview;
+
+static const cvarTableItem_t crp_cvars[] =
+{
+	{
+		&crp_dof, "crp_dof", "1", CVAR_ARCHIVE, CVART_INTEGER, "0", "2",
+			"enables depth of field\n"
+			S_COLOR_VAL "    0 " S_COLOR_HELP "= Disabled\n"
+			S_COLOR_VAL "    1 " S_COLOR_HELP "= Gather (fast, more flexible, issues with transparency)\n"
+			S_COLOR_VAL "    2 " S_COLOR_HELP "= Accumulation (slow, less flexible, great IQ)\n",
+		"DoF mode", CVARCAT_GRAPHICS, "Depth of field mode", "",
+		CVAR_GUI_VALUE("0", "Disabled", "")
+		CVAR_GUI_VALUE("1", "Gather", "Fast, lower IQ")
+		CVAR_GUI_VALUE("2", "Accumulation", "Very slow, great IQ")
+	},
+	{
+		&crp_dof_overlay, "crp_dof_overlay", "0", CVAR_ARCHIVE, CVART_INTEGER, "0", "2",
+			"debug overlay mode\n"
+			S_COLOR_VAL "    0 " S_COLOR_HELP "= Disabled\n"
+			S_COLOR_VAL "    1 " S_COLOR_HELP "= Colorized Blur\n"
+			S_COLOR_VAL "    2 " S_COLOR_HELP "= Focus Plane",
+		"DoF overlay mode", CVARCAT_GRAPHICS, "Debug overlay mode", "",
+		CVAR_GUI_VALUE("0", "Disabled", "")
+		CVAR_GUI_VALUE("1", "Colorized Blur", "")
+		CVAR_GUI_VALUE("2", "Focus Plane", "")
+	},
+	{
+		&crp_dof_blades, "crp_dof_blades", "6", CVAR_ARCHIVE, CVART_FLOAT, "0", "16",
+			"aperture blade count\n"
+			"Set to less than 3 for a disk shape.",
+		"DoF blade count", CVARCAT_GRAPHICS, "Aperture blade count", "Set to less than 3 for a disk shape."
+	},
+	{
+		&crp_dof_angle, "crp_dof_angle", "20", CVAR_ARCHIVE, CVART_FLOAT, "0", "360", "aperture angle, in degrees",
+		"DoF aperture angle", CVARCAT_GRAPHICS, "Aperture angle, in degrees", ""
+	},
+	{
+		&crp_accumDof_focusDist, "crp_accumDof_focusDist", "256", CVAR_ARCHIVE, CVART_FLOAT, "2", "2048", "focus distance",
+		"Accum DoF focus distance", CVARCAT_GRAPHICS, "Focus distance", ""
+	},
+	{
+		&crp_accumDof_radius, "crp_accumDof_blurRadius", "0.1", CVAR_ARCHIVE, CVART_FLOAT, "0.001", "20", "aperture radius in world units",
+		"Accum DoF aperture radius", CVARCAT_GRAPHICS, "Aperture radius in world units", ""
+	},
+	{
+		&crp_accumDof_samples, "crp_accumDof_samples", "2", CVAR_ARCHIVE, CVART_INTEGER, "1", "12",
+			"per-axis sampling density\n"
+			"Density N means (2N + 1)(2N + 1) scene renders in total.",
+		"Accum DoF sample count", CVARCAT_GRAPHICS, "Per-axis sampling density", "Density N means (2N + 1)^2 scene renders in total."
+	},
+	{
+		&crp_accumDof_preview, "crp_accumDof_preview", "0", CVAR_ARCHIVE, CVART_INTEGER, "0", "2",
+			"low-res preview mode\n"
+			S_COLOR_VAL "    0 " S_COLOR_HELP "= Disabled\n"
+			S_COLOR_VAL "    1 " S_COLOR_HELP "= 1/4 pixel count, 9 samples total\n"
+			S_COLOR_VAL "    2 " S_COLOR_HELP "= 1/16 pixel count, 25 samples total",
+		"Accum DoF preview mode", CVARCAT_GRAPHICS, "Low-resolution preview modes", "",
+		CVAR_GUI_VALUE("0", "Disabled", "")
+		CVAR_GUI_VALUE("1", "1/4 pixel count", "9 samples total")
+		CVAR_GUI_VALUE("2", "1/16 pixel count", "25 samples total")
+	},
+	{
+		&crp_gatherDof_focusNearDist, "crp_gatherDof_focusNearDist", "192", CVAR_ARCHIVE, CVART_FLOAT, "1", "2048", "near focus distance",
+		"Gather DoF near focus distance", CVARCAT_GRAPHICS, "Near focus distance", ""
+	},
+	{
+		&crp_gatherDof_focusNearRange, "crp_gatherDof_focusNearRange", "256", CVAR_ARCHIVE, CVART_FLOAT, "1", "2048", "near focus range",
+		"Gather DoF near focus range", CVARCAT_GRAPHICS, "Near focus range", ""
+	},
+	{
+		&crp_gatherDof_focusFarDist, "crp_gatherDof_focusFarDist", "512", CVAR_ARCHIVE, CVART_FLOAT, "1", "2048", "far focus distance",
+		"Gather DoF far focus distance", CVARCAT_GRAPHICS, "Far focus distance", ""
+	},
+	{
+		&crp_gatherDof_focusFarRange, "crp_gatherDof_focusFarRange", "384", CVAR_ARCHIVE, CVART_FLOAT, "1", "2048", "far focus range",
+		"Gather DoF far focus range", CVARCAT_GRAPHICS, "Far focus range", ""
+	},
+	{
+		&crp_gatherDof_brightness, "crp_gatherDof_brightness", "2", CVAR_ARCHIVE, CVART_FLOAT, "0", "8", "blur brightness weight",
+		"Gather DoF bokeh brightness", CVARCAT_GRAPHICS, "Blur brightness weight", ""
+	}
+};
+
+
+void PSOCache::Init(Entry* entries_, uint32_t maxEntryCount_)
+{
+	entries = entries_;
+	maxEntryCount = maxEntryCount_;
+	entryCount = 1; // we treat index 0 as invalid
+}
+
+int PSOCache::AddPipeline(const GraphicsPipelineDesc& desc, const char* name)
+{
+	// we treat index 0 as invalid, so start at 1
+	for(uint32_t i = 1; i < entryCount; ++i)
+	{
+		Entry& entry = entries[i];
+		if(memcmp(&entry.desc, &desc, sizeof(desc)) == 0)
+		{
+			return (int)i;
+		}
+	}
+
+	ASSERT_OR_DIE(entryCount < maxEntryCount, "Not enough entries in the PSO cache");
+
+	GraphicsPipelineDesc namedDesc = desc;
+	namedDesc.name = name;
+
+	const uint32_t index = entryCount++;
+	Entry& entry = entries[index];
+	entry.desc = desc; // keep the original desc for proper comparison results
+	entry.handle = CreateGraphicsPipeline(namedDesc);
+
+	return (int)index;
+}
+
+void CRP::Init()
+{
+	static bool veryFirstInit = true;
+	if(veryFirstInit)
+	{
+		ri.Cvar_RegisterTable(crp_cvars, ARRAY_LEN(crp_cvars));
+		veryFirstInit = false;
+	}
+
+	InitDesc initDesc;
+	initDesc.directDescriptorHeapIndexing = true;
+	srp.firstInit = RHI::Init(initDesc);
+	srp.psoStatsValid = false;
+
+	if(srp.firstInit)
+	{
+		srp.CreateShaderTraceBuffers();
+
+		for(uint32_t f = 0; f < FrameCount; ++f)
+		{
+			// the doubled index count is for the depth pre-pass
+			const int MaxDynamicVertexCount = 16 << 20;
+			const int MaxDynamicIndexCount = MaxDynamicVertexCount * 4;
+			GeoBuffers& db = dynBuffers[f];
+			db.Create(va("world #%d", f + 1), MaxDynamicVertexCount, MaxDynamicIndexCount);
+		}
+	}
+
+	// we recreate the samplers on every vid_restart to create the right level
+	// of anisotropy based on the latched CVar
+	for(uint32_t w = 0; w < TW_COUNT; ++w)
+	{
+		for(uint32_t f = 0; f < TextureFilter::Count; ++f)
+		{
+			for(uint32_t m = 0; m < MaxTextureMips; ++m)
+			{
+				const textureWrap_t wrap = (textureWrap_t)w;
+				const TextureFilter::Id filter = (TextureFilter::Id)f;
+				const uint32_t s = GetBaseSamplerIndex(wrap, filter, m);
+				SamplerDesc desc(wrap, filter, (float)m);
+				desc.shortLifeTime = true;
+				samplers[s] = CreateSampler(desc);
+				samplerIndices[s] = RHI::GetSamplerIndex(samplers[s]);
+			}
+		}
+	}
+
+	{
+		renderTargetFormat = TextureFormat::RGBA64_Float;
+
+		TextureDesc desc("render target #1", glConfig.vidWidth, glConfig.vidHeight);
+		desc.initialState = ResourceStates::RenderTargetBit;
+		desc.allowedState = ResourceStates::RenderTargetBit | ResourceStates::PixelShaderAccessBit;
+		Vector4Clear(desc.clearColor);
+		desc.usePreferredClearValue = true;
+		desc.committedResource = true;
+		desc.format = renderTargetFormat;
+		desc.shortLifeTime = true;
+		renderTargets[0] = RHI::CreateTexture(desc);
+		desc.name = "render target #2";
+		renderTargets[1] = RHI::CreateTexture(desc);
+		renderTargetIndex = 0;
+		renderTarget = renderTargets[0];
+	}
+
+	{
+		TextureDesc desc("readback render target", glConfig.vidWidth, glConfig.vidHeight);
+		desc.initialState = ResourceStates::RenderTargetBit;
+		desc.allowedState = ResourceStates::RenderTargetBit | ResourceStates::PixelShaderAccessBit;
+		Vector4Clear(desc.clearColor);
+		desc.usePreferredClearValue = true;
+		desc.committedResource = true;
+		desc.format = TextureFormat::RGBA32_UNorm;
+		desc.shortLifeTime = true;
+		readbackRenderTarget = RHI::CreateTexture(desc);
+	}
+
+	{
+		TextureDesc desc("OIT index", glConfig.vidWidth, glConfig.vidHeight);
+		desc.initialState = ResourceStates::UnorderedAccessBit;
+		desc.allowedState = ResourceStates::UnorderedAccessBit | ResourceStates::PixelShaderAccessBit | ResourceStates::ComputeShaderAccessBit;
+		desc.committedResource = true;
+		desc.format = TextureFormat::R32_UInt;
+		desc.shortLifeTime = true;
+		oitIndexTexture = RHI::CreateTexture(desc);
+	}
+
+	uint32_t oitMaxFragmentCount = 0;
+	{
+		const int byteCountPerFragment = sizeof(OIT_Fragment);
+		const int fragmentCount = glConfig.vidWidth * glConfig.vidHeight * OIT_AVG_FRAGMENTS_PER_PIXEL;
+		const int byteCount = byteCountPerFragment * fragmentCount;
+		oitMaxFragmentCount = fragmentCount;
+
+		BufferDesc desc("OIT fragment", byteCount, ResourceStates::UnorderedAccessBit);
+		desc.committedResource = true;
+		desc.memoryUsage = MemoryUsage::GPU;
+		desc.structureByteCount = byteCountPerFragment;
+		desc.shortLifeTime = true;
+		oitFragmentBuffer = CreateBuffer(desc);
+	}
+
+	{
+		const int byteCount = sizeof(OIT_Counter);
+
+		{
+			BufferDesc desc("OIT counter", byteCount, ResourceStates::UnorderedAccessBit);
+			desc.committedResource = true;
+			desc.memoryUsage = MemoryUsage::GPU;
+			desc.structureByteCount = byteCount;
+			desc.shortLifeTime = true;
+			oitCounterBuffer = CreateBuffer(desc);
+		}
+		{
+			BufferDesc desc("OIT counter staging", byteCount, ResourceStates::Common);
+			desc.committedResource = false;
+			desc.memoryUsage = MemoryUsage::Upload;
+			desc.structureByteCount = byteCount;
+			desc.shortLifeTime = true;
+			oitCounterStagingBuffer = CreateBuffer(desc);
+
+			uint32_t* dst = (uint32_t*)MapBuffer(oitCounterStagingBuffer);
+			dst[0] = 1; // fragment index 0 is the end-of-list value
+			dst[1] = oitMaxFragmentCount;
+			dst[2] = 0;
+			UnmapBuffer(oitCounterStagingBuffer);
+		}
+	}
+
+	{
+		TextureDesc desc("depth buffer", glConfig.vidWidth, glConfig.vidHeight);
+		desc.committedResource = true;
+		desc.shortLifeTime = true;
+		desc.initialState = ResourceStates::DepthWriteBit;
+		desc.allowedState = ResourceStates::DepthAccessBits | ResourceStates::PixelShaderAccessBit;
+		desc.format = TextureFormat::Depth32_Float;
+		desc.SetClearDepthStencil(0.0f, 0);
+		depthTexture = RHI::CreateTexture(desc);
+	}
+
+	{
+		GraphicsPipelineDesc desc("blit LDR");
+		desc.vertexShader = ShaderByteCode(blit::g_vs);
+		desc.pixelShader = ShaderByteCode(blit::g_ps);
+		desc.depthStencil.DisableDepth();
+		desc.rasterizer.cullMode = CT_TWO_SIDED;
+		desc.AddRenderTarget(0, TextureFormat::RGBA32_UNorm);
+		blitPipelineLDR = CreateGraphicsPipeline(desc);
+		desc.name = "blit HDR";
+		desc.renderTargets[0].format = TextureFormat::RGBA64_Float;
+		blitPipelineHDR = CreateGraphicsPipeline(desc);
+	}
+
+	ui.Init(true, ShaderByteCode(ui::g_vs), ShaderByteCode(ui::g_ps), renderTargetFormat, RHI_MAKE_NULL_HANDLE(), NULL);
+	imgui.Init(true, ShaderByteCode(imgui::g_vs), ShaderByteCode(imgui::g_ps), renderTargetFormat, RHI_MAKE_NULL_HANDLE(), NULL);
+	nuklear.Init(true, ShaderByteCode(nuklear::g_vs), ShaderByteCode(nuklear::g_ps), renderTargetFormat, RHI_MAKE_NULL_HANDLE(), NULL);
+	mipMapGen.Init(true, ShaderByteCode(mip_1::g_cs), ShaderByteCode(mip_2::g_cs), ShaderByteCode(mip_3::g_cs));
+	opaque.Init();
+	transp.Init();
+	transpResolve.Init();
+	toneMap.Init();
+	gatherDof.Init();
+	accumDof.Init();
+	fog.Init();
+
+	srp.firstInit = false;
+}
+
+void CRP::ShutDown(bool fullShutDown)
+{
+	RHI::ShutDown(fullShutDown);
+}
+
+void CRP::BeginFrame()
+{
+	renderTargetIndex = 0;
+	renderTarget = renderTargets[0];
+
+	srp.BeginFrame();
+
+	// have it be first to we can use ImGUI in the other components too
+	imgui.BeginFrame();
+
+	RHI::BeginFrame();
+	ui.BeginFrame();
+	nuklear.BeginFrame();
+
+	const float clearColor[4] = { 0.0f, 0.5f, 0.0f, 0.0f };
+	const TextureBarrier barrier(renderTarget, ResourceStates::RenderTargetBit);
+	CmdBarrier(1, &barrier);
+	CmdClearColorTarget(renderTarget, clearColor);
+
+	frameSeed = (float)rand() / (float)RAND_MAX;
+
+	dynBuffers[GetFrameIndex()].Rewind();
+}
+
+void CRP::EndFrame()
+{
+	srp.DrawGUI();
+	imgui.Draw(renderTarget);
+	toneMap.DrawToneMap();
+	BlitRenderTarget(GetSwapChainTexture(), "Blit to Swap Chain");
+	BlitRenderTarget(readbackRenderTarget, "Blit to Readback Texture");
+	srp.EndFrame();
+}
+
+void CRP::Blit(HTexture destination, HTexture source, const char* passName, bool hdr, const vec2_t tcScale, const vec2_t tcBias)
+{
+	SCOPED_RENDER_PASS(passName, 0.125f, 0.125f, 0.5f);
+
+	const TextureBarrier barriers[2] =
+	{
+		TextureBarrier(source, ResourceStates::PixelShaderAccessBit),
+		TextureBarrier(destination, ResourceStates::RenderTargetBit)
+	};
+	CmdBarrier(ARRAY_LEN(barriers), barriers);
+
+#pragma pack(push, 4)
+	struct BlitRC
+	{
+		uint32_t textureIndex;
+		uint32_t samplerIndex;
+		float tcScale[2];
+		float tcBias[2];
+	};
+#pragma pack(pop)
+
+	BlitRC rc;
+	rc.textureIndex = GetTextureIndexSRV(source);
+	rc.samplerIndex = GetSamplerIndex(TW_CLAMP_TO_EDGE, TextureFilter::Linear);
+	rc.tcScale[0] = tcScale[0];
+	rc.tcScale[1] = tcScale[1];
+	rc.tcBias[0] = tcBias[0];
+	rc.tcBias[1] = tcBias[0];
+	CmdSetViewportAndScissor(0, 0, glConfig.vidWidth, glConfig.vidHeight);
+	CmdBindRenderTargets(1, &destination, NULL);
+	CmdBindPipeline(hdr ? blitPipelineHDR : blitPipelineLDR);
+	CmdSetGraphicsRootConstants(0, sizeof(rc), &rc);
+	CmdDraw(3, 0);
+}
+
+void CRP::BlitRenderTarget(HTexture destination, const char* passName)
+{
+	Blit(destination, crp.renderTarget, passName, false, vec2_one, vec2_zero);
+}
+
+void CRP::CreateTexture(image_t* image, int mipCount, int width, int height)
+{
+	TextureDesc desc(image->name, width, height, mipCount);
+	desc.committedResource = width * height >= (1 << 20);
+	desc.shortLifeTime = true;
+	if(mipCount > 1)
+	{
+		desc.allowedState |= ResourceStates::UnorderedAccessBit; // for mip-map generation
+	}
+
+	image->texture = ::RHI::CreateTexture(desc);
+	image->textureIndex = GetTextureIndexSRV(image->texture);
+}
+
+void CRP::UpoadTextureAndGenerateMipMaps(image_t* image, const byte* data)
+{
+	MappedTexture texture;
+	RHI::BeginTextureUpload(texture, image->texture);
+	for(uint32_t r = 0; r < texture.rowCount; ++r)
+	{
+		memcpy(texture.mappedData + r * texture.dstRowByteCount, data + r * texture.srcRowByteCount, texture.srcRowByteCount);
+	}
+	RHI::EndTextureUpload();
+
+	mipMapGen.GenerateMipMaps(image->texture);
+}
+
+void CRP::BeginTextureUpload(MappedTexture& mappedTexture, image_t* image)
+{
+	RHI::BeginTextureUpload(mappedTexture, image->texture);
+}
+
+void CRP::EndTextureUpload()
+{
+	RHI::EndTextureUpload();
+}
+
+void CRP::ProcessWorld(world_t&)
+{
+}
+
+void CRP::ProcessModel(model_t&)
+{
+}
+
+void CRP::ProcessShader(shader_t& shader)
+{
+	if(shader.isOpaque)
+	{
+		opaque.ProcessShader(shader);
+	}
+	else
+	{
+		transp.ProcessShader(shader);
+	}
+}
+
+void CRP::ExecuteRenderCommands(const byte* data, bool /*readbackRequested*/)
+{
+	// @NOTE: the CRP always blits the final result to the readback texture
+
+	for(;;)
+	{
+		const int commandId = ((const renderCommandBase_t*)data)->commandId;
+
+		if(commandId < 0 || commandId >= RC_COUNT)
+		{
+			assert(!"Invalid render command type");
+			return;
+		}
+
+		if(commandId == RC_END_OF_LIST)
+		{
+			return;
+		}
+
+		switch(commandId)
+		{
+			case RC_UI_SET_COLOR:
+				ui.CmdSetColor(*(const uiSetColorCommand_t*)data);
+				break;
+			case RC_UI_DRAW_QUAD:
+				ui.CmdDrawQuad(*(const uiDrawQuadCommand_t*)data);
+				break;
+			case RC_UI_DRAW_TRIANGLE:
+				ui.CmdDrawTriangle(*(const uiDrawTriangleCommand_t*)data);
+				break;
+			case RC_DRAW_SCENE_VIEW:
+				DrawSceneView(*(const drawSceneViewCommand_t*)data);
+				break;
+			case RC_BEGIN_FRAME:
+				BeginFrame();
+				break;
+			case RC_SWAP_BUFFERS:
+				EndFrame();
+				break;
+			case RC_BEGIN_UI:
+				ui.Begin(renderTarget);
+				break;
+			case RC_END_UI:
+				ui.End();
+				break;
+			case RC_BEGIN_3D:
+				// @TODO:
+				srp.renderMode = RenderMode::None;
+				break;
+			case RC_END_3D:
+				// @TODO:
+				srp.renderMode = RenderMode::None;
+				break;
+			case RC_END_SCENE:
+				// @TODO: post-processing
+				break;
+			case RC_BEGIN_NK:
+				nuklear.Begin(renderTarget);
+				break;
+			case RC_END_NK:
+				nuklear.End();
+				break;
+			case RC_NK_UPLOAD:
+				nuklear.Upload(*(const nuklearUploadCommand_t*)data);
+				break;
+			case RC_NK_DRAW:
+				nuklear.Draw(*(const nuklearDrawCommand_t*)data);
+				break;
+			default:
+				Q_assert(!"Unsupported render command type");
+				return;
+		}
+
+		data += renderCommandSizes[commandId];
+	}
+}
+
+void CRP::TessellationOverflow()
+{
+	switch(tess.tessellator)
+	{
+		case Tessellator::Opaque: opaque.TessellationOverflow(); break;
+		case Tessellator::Transp: transp.TessellationOverflow(); break;
+		default: break;
+	}
+	tess.numIndexes = 0;
+	tess.numVertexes = 0;
+}
+
+void CRP::DrawSceneView(const drawSceneViewCommand_t& cmd)
+{
+	const viewParms_t& vp = cmd.viewParms;
+	if(cmd.shouldClearColor)
+	{
+		const Rect rect(vp.viewportX, vp.viewportY, vp.viewportWidth, vp.viewportHeight);
+		const TextureBarrier tb(renderTarget, ResourceStates::RenderTargetBit);
+		CmdBarrier(1, &tb);
+		CmdClearColorTarget(renderTarget, cmd.clearColor, &rect);
+	}
+
+	if(cmd.numDrawSurfs <= 0 || !cmd.shouldDrawScene)
+	{
+		return;
+	}
+
+	if(crp_dof->integer == DOFMethod::Accumulation &&
+		vp.viewportX == 0 &&
+		vp.viewportY == 0 &&
+		vp.viewportWidth == glConfig.vidWidth &&
+		vp.viewportHeight == glConfig.vidHeight)
+	{
+		const Rect rect(0, 0, glConfig.vidWidth, glConfig.vidHeight);
+		accumDof.Begin(cmd);
+		const uint32_t sampleCount = accumDof.GetSampleCount();
+		for(uint32_t y = 0; y < sampleCount; y++)
+		{
+			for(uint32_t x = 0; x < sampleCount; x++)
+			{
+				srp.enableRenderPassQueries = x == 0 && y == 0;
+				drawSceneViewCommand_t newCmd;
+				accumDof.FixCommand(newCmd, cmd, x, y);
+				const TextureBarrier tb(renderTarget, ResourceStates::RenderTargetBit);
+				CmdBarrier(1, &tb);
+				CmdClearColorTarget(renderTarget, cmd.clearColor, &rect);
+				opaque.Draw(newCmd);
+				fog.Draw();
+				transp.Draw(newCmd);
+				transpResolve.Draw(newCmd);
+				accumDof.Accumulate();
+
+				// geometry allocation is a linear allocation instead of a ring buffer
+				// we force a CPU-GPU sync point after every full scene render
+				// that way, we can keep the buffer sizes at least somewhat reasonable
+				SubmitAndContinue();
+				dynBuffers[GetFrameIndex()].Rewind();
+			}
+		}
+		CmdSetViewportAndScissor(backEnd.viewParms);
+		srp.enableRenderPassQueries = true;
+		accumDof.Normalize();
+		backEnd.viewParms = cmd.viewParms;
+		backEnd.refdef = cmd.refdef;
+		accumDof.DrawDebug();
+	}
+	else
+	{
+		opaque.Draw(cmd);
+		fog.Draw();
+		transp.Draw(cmd);
+		transpResolve.Draw(cmd);
+		CmdSetViewportAndScissor(vp.viewportX, vp.viewportY, vp.viewportWidth, vp.viewportHeight);
+		gatherDof.Draw();
+	}
+}
+
+void CRP::ReadPixels(int w, int h, int alignment, colorSpace_t colorSpace, void* outPixels)
+{
+	ReadTextureImage(outPixels, readbackRenderTarget, w, h, alignment, colorSpace);
+}
+
+uint32_t CRP::GetSamplerDescriptorIndexFromBaseIndex(uint32_t baseIndex)
+{
+	Q_assert(baseIndex < ARRAY_LEN(samplerIndices));
+
+	return samplerIndices[baseIndex];
+}
+
+HTexture CRP::GetReadRenderTarget()
+{
+	return renderTargets[renderTargetIndex ^ 1];
+}
+
+HTexture CRP::GetWriteRenderTarget()
+{
+	return renderTargets[renderTargetIndex];
+}
+
+void CRP::SwapRenderTargets()
+{
+	renderTargetIndex ^= 1;
+	renderTarget = GetWriteRenderTarget();
+}

code/renderer/crp_opaque.cpp

@@ -0,0 +1,376 @@
+/*
+===========================================================================
+Copyright (C) 2023 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// Cinematic Rendering Pipeline - opaque surfaces
+
+
+#include "crp_local.h"
+namespace opaque
+{
+#include "compshaders/crp/opaque_vs.h"
+#include "compshaders/crp/opaque_ps.h"
+}
+
+
+#pragma pack(push, 4)
+
+struct OpaqueVertexRC : WorldVertexRC
+{
+};
+
+struct OpaquePixelRC
+{
+	// general
+	uint32_t textureIndex;
+	uint32_t samplerIndex;
+	uint32_t shaderIndexBufferIndex;
+	uint32_t alphaTest;
+	float greyscale;
+
+	// shader trace
+	uint32_t shaderTrace; // shader index: 14 - frame index: 2 - enable: 1
+	uint16_t centerPixelX;
+	uint16_t centerPixelY;
+};
+
+#pragma pack(pop)
+
+
+void WorldOpaque::Init()
+{
+	psoCache.Init(psoCacheEntries, ARRAY_LEN(psoCacheEntries));
+}
+
+void WorldOpaque::Draw(const drawSceneViewCommand_t& cmd)
+{
+	if(cmd.numDrawSurfs - cmd.numTranspSurfs <= 0)
+	{
+		return;
+	}
+
+	srp.renderMode = RenderMode::World;
+
+	backEnd.refdef = cmd.refdef;
+	backEnd.viewParms = cmd.viewParms;
+
+	if(backEnd.viewParms.isPortal)
+	{
+		float plane[4];
+		plane[0] = backEnd.viewParms.portalPlane.normal[0];
+		plane[1] = backEnd.viewParms.portalPlane.normal[1];
+		plane[2] = backEnd.viewParms.portalPlane.normal[2];
+		plane[3] = backEnd.viewParms.portalPlane.dist;
+
+		float plane2[4];
+		plane2[0] = DotProduct(backEnd.viewParms.orient.axis[0], plane);
+		plane2[1] = DotProduct(backEnd.viewParms.orient.axis[1], plane);
+		plane2[2] = DotProduct(backEnd.viewParms.orient.axis[2], plane);
+		plane2[3] = DotProduct(plane, backEnd.viewParms.orient.origin) - plane[3];
+
+		float* o = plane;
+		const float* m = s_flipMatrix;
+		const float* v = plane2;
+		o[0] = m[0] * v[0] + m[4] * v[1] + m[8] * v[2] + m[12] * v[3];
+		o[1] = m[1] * v[0] + m[5] * v[1] + m[9] * v[2] + m[13] * v[3];
+		o[2] = m[2] * v[0] + m[6] * v[1] + m[10] * v[2] + m[14] * v[3];
+		o[3] = m[3] * v[0] + m[7] * v[1] + m[11] * v[2] + m[15] * v[3];
+
+		memcpy(clipPlane, plane, sizeof(clipPlane));
+	}
+	else
+	{
+		memset(clipPlane, 0, sizeof(clipPlane));
+	}
+
+	CmdSetViewportAndScissor(backEnd.viewParms);
+	batchOldDepthHack = false;
+	batchDepthHack = false;
+
+	TextureBarrier tb(crp.depthTexture, ResourceStates::DepthWriteBit);
+	BufferBarrier bb(srp.traceRenderBuffer, ResourceStates::UnorderedAccessBit);
+	CmdBarrier(1, &tb, 1, &bb);
+
+	CmdClearDepthStencilTarget(crp.depthTexture, true, 0.0f);
+
+	GeoBuffers& db = crp.dynBuffers[GetFrameIndex()];
+	db.BeginUpload();
+
+	SCOPED_RENDER_PASS("Opaque", 1.0f, 0.5f, 0.5f);
+
+	CmdBindRenderTargets(1, &crp.renderTarget, &crp.depthTexture);
+	CmdBindVertexBuffers(ARRAY_LEN(db.vertexBuffers), db.vertexBuffers, db.vertexBufferStrides, NULL);
+	CmdBindIndexBuffer(db.indexBuffer.buffer, IndexType::UInt32, 0);
+
+	const drawSurf_t* drawSurfs = cmd.drawSurfs;
+	const int surfCount = cmd.numDrawSurfs - cmd.numTranspSurfs;
+	const double originalTime = backEnd.refdef.floatTime;
+
+	const shader_t* shader = NULL;
+	const shader_t* oldShader = NULL;
+	int oldEntityNum = -1;
+	backEnd.currentEntity = &tr.worldEntity;
+
+	tess.numVertexes = 0;
+	tess.numIndexes = 0;
+
+	int ds;
+	const drawSurf_t* drawSurf;
+	for(ds = 0, drawSurf = drawSurfs; ds < surfCount; ++ds, ++drawSurf)
+	{
+		int entityNum;
+		R_DecomposeSort(drawSurf->sort, &entityNum, &shader);
+		Q_assert(shader != NULL);
+		Q_assert(shader->isOpaque);
+
+		// sky shaders can have no stages and be valid (box drawn with no clouds)
+		if(!shader->isSky)
+		{
+			if(shader->numPipelines == 0 ||
+				shader->pipelines[0].pipeline <= 0 ||
+				shader->pipelines[0].numStages <= 0)
+			{
+				continue;
+			}
+		}
+
+		const bool shaderChanged = shader != oldShader;
+		const bool entityChanged = entityNum != oldEntityNum;
+		if(shaderChanged || entityChanged)
+		{
+			oldShader = shader;
+			oldEntityNum = entityNum;
+			EndSkyBatch();
+			EndBatch();
+			BeginBatch(shader);
+			tess.greyscale = drawSurf->greyscale;
+		}
+
+		if(entityChanged)
+		{
+			UpdateEntityData(batchDepthHack, entityNum, originalTime);
+		}
+
+		R_TessellateSurface(drawSurf->surface);
+	}
+
+	backEnd.refdef.floatTime = originalTime;
+
+	EndSkyBatch();
+	EndBatch();
+
+	db.EndUpload();
+
+	// restores the potentially "hacked" depth range as well
+	CmdSetViewportAndScissor(backEnd.viewParms);
+	batchOldDepthHack = false;
+	batchDepthHack = false;
+}
+
+void WorldOpaque::ProcessShader(shader_t& shader)
+{
+	Q_assert(shader.isOpaque || shader.isSky);
+
+	if(shader.numStages < 1)
+	{
+		shader.numPipelines = 0;
+		return;
+	}
+
+	const bool clampDepth = r_depthClamp->integer != 0 || shader.isSky;
+
+	for(int s = 0; s < shader.numStages; ++s)
+	{
+		const shaderStage_t& stage = *shader.stages[s];
+		const unsigned int stateBits = stage.stateBits & (~GLS_POLYMODE_LINE);
+		int a = 0;
+
+		// @NOTE: we are not using any CTOR because we deliberately want to 0-init the struct
+		// this is necessary for padding bytes not to mess up comparisons in the PSO cache
+		GraphicsPipelineDesc desc = {};
+		desc.name = "opaque";
+		desc.rootSignature = RHI_MAKE_NULL_HANDLE();
+		desc.shortLifeTime = true; // the PSO cache is only valid for this map!
+		desc.vertexShader = opaque::g_vs;
+		desc.pixelShader = opaque::g_ps;
+		desc.vertexLayout.AddAttribute(a++, ShaderSemantic::Position, DataType::Float32, 3, 0);
+		desc.vertexLayout.AddAttribute(a++, ShaderSemantic::Normal, DataType::Float32, 2, 0);
+		desc.vertexLayout.AddAttribute(a++, ShaderSemantic::TexCoord, DataType::Float32, 2, 0);
+		desc.vertexLayout.AddAttribute(a++, ShaderSemantic::Color, DataType::UNorm8, 4, 0);
+		desc.depthStencil.depthStencilFormat = TextureFormat::Depth32_Float;
+		desc.depthStencil.depthComparison =
+			(stateBits & GLS_DEPTHFUNC_EQUAL) != 0 ?
+			ComparisonFunction::Equal :
+			ComparisonFunction::GreaterEqual;
+		desc.depthStencil.enableDepthTest = (stateBits & GLS_DEPTHTEST_DISABLE) == 0;
+		desc.depthStencil.enableDepthWrites = (stateBits & GLS_DEPTHMASK_TRUE) != 0;
+		desc.rasterizer.cullMode = shader.cullType;
+		desc.rasterizer.polygonOffset = shader.polygonOffset != 0;
+		desc.rasterizer.clampDepth = clampDepth;
+		desc.AddRenderTarget(stateBits & GLS_BLEND_BITS, crp.renderTargetFormat);
+
+		pipeline_t& p = shader.pipelines[s];
+		p.firstStage = s;
+		p.numStages = 1;
+		p.pipeline = psoCache.AddPipeline(desc, va("opaque %d %d", psoCache.entryCount, s + 1));
+		desc.rasterizer.cullMode = GetMirrorredCullType(desc.rasterizer.cullMode);
+		p.mirrorPipeline = psoCache.AddPipeline(desc, va("opaque %d %d mirrored", psoCache.entryCount, s + 1));
+	}
+
+	shader.numPipelines = shader.numStages;
+}
+
+void WorldOpaque::TessellationOverflow()
+{
+	EndBatch();
+	BeginBatch(tess.shader);
+}
+
+void WorldOpaque::BeginBatch(const shader_t* shader)
+{
+	tess.tessellator = Tessellator::Opaque;
+	tess.numVertexes = 0;
+	tess.numIndexes = 0;
+	tess.depthFade = DFT_NONE;
+	tess.deformsPreApplied = qfalse;
+	tess.xstages = (const shaderStage_t**)shader->stages;
+	tess.shader = shader;
+	tess.shaderTime = backEnd.refdef.floatTime - tess.shader->timeOffset;
+	if(tess.shader->clampTime && tess.shaderTime >= tess.shader->clampTime)
+	{
+		tess.shaderTime = tess.shader->clampTime;
+	}
+}
+
+void WorldOpaque::EndBatch()
+{
+	const int vertexCount = tess.numVertexes;
+	const int indexCount = tess.numIndexes;
+	if(vertexCount <= 0 ||
+		indexCount <= 0 ||
+		tess.shader->numStages == 0 ||
+		tess.shader->numPipelines <= 0)
+	{
+		goto clean_up;
+	}
+
+	const shader_t* const shader = tess.shader;
+
+	GeoBuffers& db = crp.dynBuffers[GetFrameIndex()];
+	if(!db.CanAdd(vertexCount, indexCount, shader->numStages))
+	{
+		Q_assert(!"World surface geometry buffer too small!");
+		goto clean_up;
+	}
+
+	RB_DeformTessGeometry(0, vertexCount, 0, indexCount);
+	db.UploadBase();
+
+	if(batchDepthHack != batchOldDepthHack)
+	{
+		const viewParms_t& vp = backEnd.viewParms;
+		CmdSetViewport(vp.viewportX, vp.viewportY, vp.viewportWidth, vp.viewportHeight, batchDepthHack ? 0.7f : 0.0f, 1.0f);
+		batchOldDepthHack = batchDepthHack;
+	}
+
+	OpaqueVertexRC vertexRC = {};
+	memcpy(vertexRC.modelViewMatrix, backEnd.orient.modelMatrix, sizeof(vertexRC.modelViewMatrix));
+	memcpy(vertexRC.projectionMatrix, backEnd.viewParms.projectionMatrix, sizeof(vertexRC.projectionMatrix));
+	memcpy(vertexRC.clipPlane, clipPlane, sizeof(vertexRC.clipPlane));
+	CmdSetGraphicsRootConstants(0, sizeof(vertexRC), &vertexRC);
+
+	for(int s = 0; s < shader->numStages; ++s)
+	{
+		const shaderStage_t* const stage = shader->stages[s];
+
+		R_ComputeColors(stage, tess.svars[0], 0, vertexCount);
+		R_ComputeTexCoords(stage, tess.svars[0], 0, vertexCount, qfalse);
+		db.UploadStage(0);
+
+		const pipeline_t& pipeline = shader->pipelines[s];
+		const int psoIndex = backEnd.viewParms.isMirror ? pipeline.mirrorPipeline : pipeline.pipeline;
+		Q_assert(psoIndex > 0);
+		CmdBindPipeline(psoCache.entries[psoIndex].handle);
+
+		const image_t* image = GetBundleImage(stage->bundle);
+		const uint32_t texIdx = image->textureIndex;
+		const uint32_t sampIdx = GetSamplerIndex(image);
+		const uint32_t alphaTest = AlphaTestShaderConstFromStateBits(stage->stateBits);
+		const uint32_t enableShaderTrace = tr.traceWorldShader && s == 0 ? 1 : 0;
+		const uint32_t bufferIndex = GetBufferIndexUAV(srp.traceRenderBuffer);
+		Q_assert(sampIdx < ARRAY_LEN(crp.samplers));
+
+		OpaquePixelRC pixelRC = {};
+		pixelRC.textureIndex = texIdx;
+		pixelRC.samplerIndex = sampIdx;
+		pixelRC.shaderIndexBufferIndex = bufferIndex;
+		pixelRC.alphaTest = alphaTest;
+		pixelRC.greyscale = tess.greyscale;
+		pixelRC.shaderTrace = ((uint32_t)shader->index << 3) | (RHI::GetFrameIndex() << 1) | enableShaderTrace;
+		pixelRC.centerPixelX = glConfig.vidWidth / 2;
+		pixelRC.centerPixelY = glConfig.vidHeight / 2;
+		CmdSetGraphicsRootConstants(sizeof(vertexRC), sizeof(pixelRC), &pixelRC);
+
+		db.DrawStage(vertexCount, indexCount);
+	}
+
+	db.EndBaseBatch(vertexCount);
+
+clean_up:
+	tess.tessellator = Tessellator::None;
+	tess.numVertexes = 0;
+	tess.numIndexes = 0;
+}
+
+void WorldOpaque::EndSkyBatch()
+{
+	// this only exists as a separate function from EndBatch so that
+	// we don't have to deal with recursion (through the call to RB_DrawSky)
+
+	if(tess.shader == NULL ||
+		!tess.shader->isSky ||
+		tess.numVertexes <= 0 ||
+		tess.numIndexes <= 0)
+	{
+		return;
+	}
+
+	SCOPED_RENDER_PASS("Sky", 0.0, 0.5f, 1.0f);
+
+	const viewParms_t& vp = backEnd.viewParms;
+	CmdSetViewport(vp.viewportX, vp.viewportY, vp.viewportWidth, vp.viewportHeight, 0.0f, 0.0f);
+	RB_DrawSky();
+	CmdSetViewport(vp.viewportX, vp.viewportY, vp.viewportWidth, vp.viewportHeight, 0.0f, 1.0f);
+	tess.numVertexes = 0;
+	tess.numIndexes = 0;
+}
+
+void WorldOpaque::DrawSkyBox()
+{
+	// force creation of a PSO for the temp shader
+	ProcessShader((shader_t&)*tess.shader);
+
+	tess.deformsPreApplied = qtrue;
+	EndBatch();
+}
+
+void WorldOpaque::DrawClouds()
+{
+	EndBatch();
+}

code/renderer/crp_tone_map.cpp

@@ -0,0 +1,139 @@
+/*
+===========================================================================
+Copyright (C) 2023 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// Cinematic Rendering Pipeline - tone mapping
+
+
+#include "crp_local.h"
+namespace tone_map
+{
+#include "compshaders/crp/tone_map_vs.h"
+#include "compshaders/crp/tone_map_ps.h"
+}
+namespace inverse_tone_map
+{
+#include "compshaders/crp/tone_map_inverse_vs.h"
+#include "compshaders/crp/tone_map_inverse_ps.h"
+}
+
+
+#pragma pack(push, 4)
+
+struct ToneMapRC
+{
+	uint32_t textureIndex;
+	uint32_t samplerIndex;
+	float invGamma;
+	float brightness;
+	float greyscale;
+};
+
+struct InverseToneMapRC
+{
+	uint32_t textureIndex;
+	uint32_t samplerIndex;
+	float gamma;
+	float invBrightness;
+};
+
+#pragma pack(pop)
+
+
+void ToneMap::Init()
+{
+	{
+		GraphicsPipelineDesc desc("Tone Map");
+		desc.shortLifeTime = true;
+		desc.vertexShader = ShaderByteCode(tone_map::g_vs);
+		desc.pixelShader = ShaderByteCode(tone_map::g_ps);
+		desc.depthStencil.DisableDepth();
+		desc.rasterizer.cullMode = CT_TWO_SIDED;
+		desc.AddRenderTarget(0, crp.renderTargetFormat);
+		pipeline = CreateGraphicsPipeline(desc);
+	}
+
+	{
+		GraphicsPipelineDesc desc("Inverse Tone Map");
+		desc.shortLifeTime = true;
+		desc.vertexShader = ShaderByteCode(tone_map::g_vs);
+		desc.pixelShader = ShaderByteCode(tone_map::g_ps);
+		desc.depthStencil.DisableDepth();
+		desc.rasterizer.cullMode = CT_TWO_SIDED;
+		desc.AddRenderTarget(0, crp.renderTargetFormat);
+		pipeline = CreateGraphicsPipeline(desc);
+	}
+}
+
+void ToneMap::DrawToneMap()
+{
+	srp.renderMode = RenderMode::None;
+
+	SCOPED_RENDER_PASS("Tone Map", 1.0f, 1.0f, 1.0f);
+
+	CmdSetViewportAndScissor(0, 0, glConfig.vidWidth, glConfig.vidHeight);
+
+	crp.SwapRenderTargets();
+	const TextureBarrier texBarriers[] =
+	{
+		TextureBarrier(crp.GetReadRenderTarget(), ResourceStates::PixelShaderAccessBit),
+		TextureBarrier(crp.GetWriteRenderTarget(), ResourceStates::RenderTargetBit)
+	};
+	CmdBarrier(ARRAY_LEN(texBarriers), texBarriers, 0, NULL);
+
+	ToneMapRC rc = {};
+	rc.textureIndex = GetTextureIndexSRV(crp.GetReadRenderTarget());
+	rc.samplerIndex = GetSamplerIndex(TW_CLAMP_TO_EDGE, TextureFilter::Linear);
+	rc.invGamma = 1.0f / r_gamma->value;
+	rc.brightness = r_brightness->value;
+	rc.greyscale = r_greyscale->value;
+
+	CmdBindRenderTargets(1, &crp.renderTarget, NULL);
+	CmdBindPipeline(pipeline);
+	CmdSetGraphicsRootConstants(0, sizeof(rc), &rc);
+	CmdDraw(3, 0);
+}
+
+void ToneMap::DrawInverseToneMap()
+{
+	srp.renderMode = RenderMode::None;
+
+	SCOPED_RENDER_PASS("Inverse Tone Map", 1.0f, 1.0f, 1.0f);
+
+	CmdSetViewportAndScissor(0, 0, glConfig.vidWidth, glConfig.vidHeight);
+
+	crp.SwapRenderTargets();
+	const TextureBarrier texBarriers[] =
+	{
+		TextureBarrier(crp.GetReadRenderTarget(), ResourceStates::PixelShaderAccessBit),
+		TextureBarrier(crp.GetWriteRenderTarget(), ResourceStates::RenderTargetBit)
+	};
+	CmdBarrier(ARRAY_LEN(texBarriers), texBarriers, 0, NULL);
+
+	InverseToneMapRC rc = {};
+	rc.textureIndex = GetTextureIndexSRV(crp.GetReadRenderTarget());
+	rc.samplerIndex = GetSamplerIndex(TW_CLAMP_TO_EDGE, TextureFilter::Linear);
+	rc.gamma = r_gamma->value;
+	rc.invBrightness = 1.0f / r_brightness->value;
+
+	CmdBindRenderTargets(1, &crp.renderTarget, NULL);
+	CmdBindPipeline(inversePipeline);
+	CmdSetGraphicsRootConstants(0, sizeof(rc), &rc);
+	CmdDraw(3, 0);
+}

code/renderer/crp_transp_draw.cpp

@@ -0,0 +1,368 @@
+/*
+===========================================================================
+Copyright (C) 2023 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// Cinematic Rendering Pipeline - OIT geometry pass
+
+
+#include "crp_local.h"
+namespace transp_draw
+{
+#include "compshaders/crp/transp_draw_vs.h"
+#include "compshaders/crp/transp_draw_ps.h"
+}
+
+
+#pragma pack(push, 4)
+
+struct TranspDrawVertexRC : WorldVertexRC
+{
+};
+
+struct TranspDrawPixelRC
+{
+	uint32_t textureIndex;
+	uint32_t samplerIndex;
+	uint32_t alphaTest;
+	uint32_t counterBuffer;
+	uint32_t indexTexture;
+	uint32_t fragmentBuffer;
+	float greyscale;
+	uint32_t stateBits;
+	uint32_t shaderTrace;
+	uint16_t hFadeDistance;
+	uint16_t hFadeOffset;
+	uint32_t depthFadeScaleBias; // color bias: 4 - color scale: 4
+};
+
+#pragma pack(pop)
+
+
+static uint32_t GetFixedStageBits(uint32_t stateBits, uint32_t stageIndex)
+{
+	// makes sure we're not overwriting anything useful
+	assert((stateBits & GLS_STAGEINDEX_BITS) == 0);
+
+	// transform "no blend" into a "replace" blend mode
+	if((stateBits & (GLS_SRCBLEND_BITS | GLS_DSTBLEND_BITS)) == 0)
+	{
+		stateBits |= GLS_SRCBLEND_ONE | GLS_DSTBLEND_ZERO;
+	}
+
+	stateBits |= stageIndex << GLS_STAGEINDEX_SHIFT;
+
+	return stateBits;
+}
+
+
+void WorldTransp::Init()
+{
+	psoCache.Init(psoCacheEntries, ARRAY_LEN(psoCacheEntries));
+}
+
+void WorldTransp::Draw(const drawSceneViewCommand_t& cmd)
+{
+	if(cmd.numTranspSurfs <= 0)
+	{
+		return;
+	}
+
+	srp.renderMode = RenderMode::World;
+
+	backEnd.refdef = cmd.refdef;
+	backEnd.viewParms = cmd.viewParms;
+
+	if(backEnd.viewParms.isPortal)
+	{
+		float plane[4];
+		plane[0] = backEnd.viewParms.portalPlane.normal[0];
+		plane[1] = backEnd.viewParms.portalPlane.normal[1];
+		plane[2] = backEnd.viewParms.portalPlane.normal[2];
+		plane[3] = backEnd.viewParms.portalPlane.dist;
+
+		float plane2[4];
+		plane2[0] = DotProduct(backEnd.viewParms.orient.axis[0], plane);
+		plane2[1] = DotProduct(backEnd.viewParms.orient.axis[1], plane);
+		plane2[2] = DotProduct(backEnd.viewParms.orient.axis[2], plane);
+		plane2[3] = DotProduct(plane, backEnd.viewParms.orient.origin) - plane[3];
+
+		float* o = plane;
+		const float* m = s_flipMatrix;
+		const float* v = plane2;
+		o[0] = m[0] * v[0] + m[4] * v[1] + m[8] * v[2] + m[12] * v[3];
+		o[1] = m[1] * v[0] + m[5] * v[1] + m[9] * v[2] + m[13] * v[3];
+		o[2] = m[2] * v[0] + m[6] * v[1] + m[10] * v[2] + m[14] * v[3];
+		o[3] = m[3] * v[0] + m[7] * v[1] + m[11] * v[2] + m[15] * v[3];
+
+		memcpy(clipPlane, plane, sizeof(clipPlane));
+	}
+	else
+	{
+		memset(clipPlane, 0, sizeof(clipPlane));
+	}
+
+	SCOPED_RENDER_PASS("Transparent", 1.0f, 0.5f, 0.5f);
+
+	CmdSetViewportAndScissor(backEnd.viewParms);
+	batchOldDepthHack = false;
+	batchDepthHack = false;
+
+	const TextureBarrier texBarriers[] =
+	{
+		TextureBarrier(crp.depthTexture, ResourceStates::DepthWriteBit),
+		TextureBarrier(crp.oitIndexTexture, ResourceStates::UnorderedAccessBit)
+	};
+	const BufferBarrier bufBarriers[] =
+	{
+		BufferBarrier(crp.oitFragmentBuffer, ResourceStates::UnorderedAccessBit),
+		BufferBarrier(crp.oitCounterBuffer, ResourceStates::UnorderedAccessBit)
+	};
+	CmdBarrier(ARRAY_LEN(texBarriers), texBarriers, ARRAY_LEN(bufBarriers), bufBarriers);
+
+	GeoBuffers& db = crp.dynBuffers[GetFrameIndex()];
+	db.BeginUpload();
+
+	CmdBindRenderTargets(0, NULL, &crp.depthTexture);
+	CmdBindVertexBuffers(ARRAY_LEN(db.vertexBuffers), db.vertexBuffers, db.vertexBufferStrides, NULL);
+	CmdBindIndexBuffer(db.indexBuffer.buffer, IndexType::UInt32, 0);
+
+	// reset the fragment counter
+	{
+		BufferBarrier b0(crp.oitCounterBuffer, ResourceStates::CopyDestinationBit);
+		CmdBarrier(0, NULL, 1, &b0);
+
+		CmdCopyBuffer(crp.oitCounterBuffer, crp.oitCounterStagingBuffer);
+
+		BufferBarrier b1(crp.oitCounterBuffer, ResourceStates::UnorderedAccessBit);
+		CmdBarrier(0, NULL, 1, &b1);
+	}
+
+	// clear the index texture
+	{
+		const uint32_t zeroes[4] = {};
+		CmdClearTextureUAV(crp.oitIndexTexture, 0, zeroes);
+	}
+
+	// really should just be just for the counter buffer and the index texture
+	CmdBarrier(ARRAY_LEN(texBarriers), texBarriers, ARRAY_LEN(bufBarriers), bufBarriers);
+
+	const drawSurf_t* drawSurfs = cmd.drawSurfs;
+	const int opaqueSurfCount = cmd.numDrawSurfs - cmd.numTranspSurfs;
+	const int transpSurfCount = cmd.numTranspSurfs;
+	const double originalTime = backEnd.refdef.floatTime;
+
+	const shader_t* shader = NULL;
+	const shader_t* oldShader = NULL;
+	int oldEntityNum = -1;
+	backEnd.currentEntity = &tr.worldEntity;
+
+	tess.numVertexes = 0;
+	tess.numIndexes = 0;
+
+	const drawSurf_t* drawSurf = drawSurfs + opaqueSurfCount;
+	for(int ds = 0; ds < transpSurfCount; ++ds, ++drawSurf)
+	{
+		int entityNum;
+		R_DecomposeSort(drawSurf->sort, &entityNum, &shader);
+		Q_assert(shader != NULL);
+		Q_assert(!shader->isOpaque);
+
+		const bool shaderChanged = shader != oldShader;
+		const bool entityChanged = entityNum != oldEntityNum;
+		if(shaderChanged || entityChanged)
+		{
+			oldShader = shader;
+			oldEntityNum = entityNum;
+			EndBatch();
+			BeginBatch(shader);
+			tess.greyscale = drawSurf->greyscale;
+		}
+
+		if(entityChanged)
+		{
+			UpdateEntityData(batchDepthHack, entityNum, originalTime);
+		}
+
+		R_TessellateSurface(drawSurf->surface);
+	}
+
+	backEnd.refdef.floatTime = originalTime;
+
+	EndBatch();
+
+	db.EndUpload();
+
+	// restores the potentially "hacked" depth range as well
+	CmdSetViewportAndScissor(backEnd.viewParms);
+	batchOldDepthHack = false;
+	batchDepthHack = false;
+}
+
+void WorldTransp::ProcessShader(shader_t& shader)
+{
+	Q_assert(!shader.isOpaque);
+
+	if(shader.numStages < 1)
+	{
+		shader.numTranspPipelines = 0;
+		return;
+	}
+
+	const bool clampDepth = r_depthClamp->integer != 0 || shader.isSky;
+
+	for(int s = 0; s < shader.numStages; ++s)
+	{
+		int a = 0;
+
+		// @NOTE: we are not using any CTOR because we deliberately want to 0-init the struct
+		// this is necessary for padding bytes not to mess up comparisons in the PSO cache
+		GraphicsPipelineDesc desc = {};
+		desc.name = "transp";
+		desc.rootSignature = RHI_MAKE_NULL_HANDLE();
+		desc.shortLifeTime = true; // the PSO cache is only valid for this map!
+		desc.vertexShader = transp_draw::g_vs;
+		desc.pixelShader = transp_draw::g_ps;
+		desc.vertexLayout.AddAttribute(a++, ShaderSemantic::Position, DataType::Float32, 3, 0);
+		desc.vertexLayout.AddAttribute(a++, ShaderSemantic::Normal, DataType::Float32, 2, 0);
+		desc.vertexLayout.AddAttribute(a++, ShaderSemantic::TexCoord, DataType::Float32, 2, 0);
+		desc.vertexLayout.AddAttribute(a++, ShaderSemantic::Color, DataType::UNorm8, 4, 0);
+		desc.depthStencil.depthStencilFormat = TextureFormat::Depth32_Float;
+		desc.depthStencil.depthComparison = ComparisonFunction::GreaterEqual;
+		desc.depthStencil.enableDepthTest = true;
+		desc.depthStencil.enableDepthWrites = false;
+		desc.rasterizer.cullMode = shader.cullType;
+		desc.rasterizer.polygonOffset = shader.polygonOffset != 0;
+		desc.rasterizer.clampDepth = clampDepth;
+
+		pipeline_t& p = shader.transpPipelines[s];
+		p.firstStage = s;
+		p.numStages = 1;
+		p.pipeline = psoCache.AddPipeline(desc, va("transp %d %d", psoCache.entryCount, s + 1));
+		desc.rasterizer.cullMode = GetMirrorredCullType(desc.rasterizer.cullMode);
+		p.mirrorPipeline = psoCache.AddPipeline(desc, va("transp %d %d mirrored", psoCache.entryCount, s + 1));
+	}
+
+	shader.numTranspPipelines = shader.numStages;
+}
+
+void WorldTransp::TessellationOverflow()
+{
+	EndBatch();
+	BeginBatch(tess.shader);
+}
+
+void WorldTransp::BeginBatch(const shader_t* shader)
+{
+	tess.tessellator = Tessellator::Transp;
+	tess.numVertexes = 0;
+	tess.numIndexes = 0;
+	tess.depthFade = DFT_NONE;
+	tess.deformsPreApplied = qfalse;
+	tess.xstages = (const shaderStage_t**)shader->stages;
+	tess.shader = shader;
+	tess.shaderTime = backEnd.refdef.floatTime - tess.shader->timeOffset;
+	if(tess.shader->clampTime && tess.shaderTime >= tess.shader->clampTime)
+	{
+		tess.shaderTime = tess.shader->clampTime;
+	}
+}
+
+void WorldTransp::EndBatch()
+{
+	const int vertexCount = tess.numVertexes;
+	const int indexCount = tess.numIndexes;
+	if(vertexCount <= 0 ||
+		indexCount <= 0 ||
+		tess.shader->numStages == 0 ||
+		tess.shader->numTranspPipelines <= 0)
+	{
+		goto clean_up;
+	}
+
+	const shader_t* const shader = tess.shader;
+
+	GeoBuffers& db = crp.dynBuffers[GetFrameIndex()];
+	if(!db.CanAdd(vertexCount, indexCount, shader->numStages))
+	{
+		Q_assert(!"World surface geometry buffer too small!");
+		goto clean_up;
+	}
+
+	RB_DeformTessGeometry(0, vertexCount, 0, indexCount);
+	db.UploadBase();
+
+	if(batchDepthHack != batchOldDepthHack)
+	{
+		const viewParms_t& vp = backEnd.viewParms;
+		CmdSetViewport(vp.viewportX, vp.viewportY, vp.viewportWidth, vp.viewportHeight, batchDepthHack ? 0.7f : 0.0f, 1.0f);
+		batchOldDepthHack = batchDepthHack;
+	}
+
+	TranspDrawVertexRC vertexRC = {};
+	memcpy(vertexRC.modelViewMatrix, backEnd.orient.modelMatrix, sizeof(vertexRC.modelViewMatrix));
+	memcpy(vertexRC.projectionMatrix, backEnd.viewParms.projectionMatrix, sizeof(vertexRC.projectionMatrix));
+	memcpy(vertexRC.clipPlane, clipPlane, sizeof(vertexRC.clipPlane));
+	CmdSetGraphicsRootConstants(0, sizeof(vertexRC), &vertexRC);
+
+	for(int s = 0; s < shader->numStages; ++s)
+	{
+		const shaderStage_t* const stage = shader->stages[s];
+
+		R_ComputeColors(stage, tess.svars[0], 0, vertexCount);
+		R_ComputeTexCoords(stage, tess.svars[0], 0, vertexCount, qfalse);
+		db.UploadStage(0);
+
+		const pipeline_t& pipeline = shader->transpPipelines[s];
+		const int psoIndex = backEnd.viewParms.isMirror ? pipeline.mirrorPipeline : pipeline.pipeline;
+		Q_assert(psoIndex > 0);
+		CmdBindPipeline(psoCache.entries[psoIndex].handle);
+
+		const image_t* image = GetBundleImage(stage->bundle);
+		const uint32_t texIdx = image->textureIndex;
+		const uint32_t sampIdx = GetSamplerIndex(image);
+		const uint32_t alphaTest = AlphaTestShaderConstFromStateBits(stage->stateBits);
+		const uint32_t enableShaderTrace = tr.traceWorldShader && s == 0 ? 1 : 0;
+		const uint32_t enableDepthFade = shader->dfType != DFT_NONE ? 1 : 0;
+		Q_assert(sampIdx < ARRAY_LEN(crp.samplers));
+
+		TranspDrawPixelRC pixelRC = {};
+		pixelRC.alphaTest = alphaTest;
+		pixelRC.counterBuffer = GetBufferIndexUAV(crp.oitCounterBuffer);
+		pixelRC.fragmentBuffer = GetBufferIndexUAV(crp.oitFragmentBuffer);
+		pixelRC.greyscale = tess.greyscale;
+		pixelRC.indexTexture = GetTextureIndexUAV(crp.oitIndexTexture, 0);
+		pixelRC.samplerIndex = sampIdx;
+		pixelRC.stateBits = GetFixedStageBits(stage->stateBits, s);
+		pixelRC.textureIndex = texIdx;
+		pixelRC.shaderTrace = ((uint32_t)shader->index << 3) | (RHI::GetFrameIndex() << 1) | enableShaderTrace;
+		pixelRC.hFadeDistance = f32tof16(shader->dfInvDist);
+		pixelRC.hFadeOffset = f32tof16(shader->dfBias);
+		pixelRC.depthFadeScaleBias = (enableDepthFade << 8) | (uint32_t)r_depthFadeScaleAndBias[shader->dfType];
+		CmdSetGraphicsRootConstants(sizeof(vertexRC), sizeof(pixelRC), &pixelRC);
+
+		db.DrawStage(vertexCount, indexCount);
+	}
+
+	db.EndBaseBatch(vertexCount);
+
+clean_up:
+	tess.tessellator = Tessellator::None;
+	tess.numVertexes = 0;
+	tess.numIndexes = 0;
+}

code/renderer/crp_transp_resolve.cpp

@@ -0,0 +1,111 @@
+/*
+===========================================================================
+Copyright (C) 2023 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// Cinematic Rendering Pipeline - OIT resolve pass
+
+
+#include "crp_local.h"
+namespace transp_resolve
+{
+#include "compshaders/crp/transp_resolve_vs.h"
+#include "compshaders/crp/transp_resolve_ps.h"
+}
+
+
+#pragma pack(push, 4)
+struct TranspResolveRC
+{
+	uint32_t renderTargetTexture;
+	uint32_t shaderIndexBuffer;
+	uint32_t indexTexture;
+	uint32_t fragmentBuffer;
+	uint16_t centerPixelX;
+	uint16_t centerPixelY;
+	uint32_t depthTexture;
+	float proj22;
+	float proj32;
+	float scissorMinX;
+	float scissorMinY;
+	float scissorMaxX;
+	float scissorMaxY;
+};
+#pragma pack(pop)
+
+
+void TranspResolve::Init()
+{
+	GraphicsPipelineDesc desc("OIT Resolve");
+	desc.shortLifeTime = true;
+	desc.vertexShader = ShaderByteCode(transp_resolve::g_vs);
+	desc.pixelShader = ShaderByteCode(transp_resolve::g_ps);
+	desc.depthStencil.DisableDepth();
+	desc.rasterizer.cullMode = CT_TWO_SIDED;
+	desc.AddRenderTarget(0, crp.renderTargetFormat);
+	pipeline = CreateGraphicsPipeline(desc);
+}
+
+void TranspResolve::Draw(const drawSceneViewCommand_t& cmd)
+{
+	if(cmd.numTranspSurfs <= 0)
+	{
+		return;
+	}
+
+	srp.renderMode = RenderMode::World;
+
+	SCOPED_RENDER_PASS("OIT Resolve", 1.0f, 0.5f, 0.5f);
+
+	CmdSetViewportAndScissor(0, 0, glConfig.vidWidth, glConfig.vidHeight);
+
+	crp.SwapRenderTargets();
+	const TextureBarrier texBarriers[] =
+	{
+		TextureBarrier(crp.GetReadRenderTarget(), ResourceStates::PixelShaderAccessBit),
+		TextureBarrier(crp.GetWriteRenderTarget(), ResourceStates::RenderTargetBit),
+		TextureBarrier(crp.oitIndexTexture, ResourceStates::UnorderedAccessBit),
+		TextureBarrier(crp.depthTexture, ResourceStates::PixelShaderAccessBit)
+	};
+	const BufferBarrier bufBarriers[] =
+	{
+		BufferBarrier(crp.oitFragmentBuffer, ResourceStates::UnorderedAccessBit),
+		BufferBarrier(srp.traceRenderBuffer, ResourceStates::UnorderedAccessBit)
+	};
+	CmdBarrier(ARRAY_LEN(texBarriers), texBarriers, ARRAY_LEN(bufBarriers), bufBarriers);
+
+	TranspResolveRC rc = {};
+	rc.fragmentBuffer = GetBufferIndexUAV(crp.oitFragmentBuffer);
+	rc.indexTexture = GetTextureIndexUAV(crp.oitIndexTexture, 0);
+	rc.renderTargetTexture = GetTextureIndexSRV(crp.GetReadRenderTarget());
+	rc.shaderIndexBuffer = GetBufferIndexUAV(srp.traceRenderBuffer);
+	rc.centerPixelX = glConfig.vidWidth / 2;
+	rc.centerPixelY = glConfig.vidHeight / 2;
+	rc.depthTexture = GetTextureIndexSRV(crp.depthTexture);
+	rc.proj22 = -backEnd.viewParms.projectionMatrix[2 * 4 + 2];
+	rc.proj32 = backEnd.viewParms.projectionMatrix[3 * 4 + 2];
+	rc.scissorMinX = backEnd.viewParms.viewportX;
+	rc.scissorMinY = backEnd.viewParms.viewportY;
+	rc.scissorMaxX = rc.scissorMinX + backEnd.viewParms.viewportWidth - 1;
+	rc.scissorMaxY = rc.scissorMinY + backEnd.viewParms.viewportHeight - 1;
+
+	CmdBindRenderTargets(1, &crp.renderTarget, NULL);
+	CmdBindPipeline(pipeline);
+	CmdSetGraphicsRootConstants(0, sizeof(rc), &rc);
+	CmdDraw(3, 0);
+}

code/renderer/grp_geometry.cpp

@@ -0,0 +1,113 @@
+/*
+===========================================================================
+Copyright (C) 2023-2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// Gameplay Rendering Pipeline - vertex and index buffer management
+
+
+#include "grp_local.h"
+
+
+void VertexBuffers::Create(const char* name, MemoryUsage::Id memoryUsage, uint32_t vertexCount)
+{
+	totalCount = vertexCount;
+
+	BufferDesc desc = {};
+	desc.committedResource = true;
+	desc.initialState = ResourceStates::VertexBufferBit;
+	desc.memoryUsage = memoryUsage;
+
+	desc.name = va("%s position vertex", name);
+	desc.byteCount = vertexCount * sizeof(vec3_t);
+	buffers[BasePosition] = CreateBuffer(desc);
+	strides[BasePosition] = sizeof(vec3_t);
+
+	desc.name = va("%s normal vertex", name);
+	desc.byteCount = vertexCount * sizeof(vec3_t);
+	buffers[BaseNormal] = CreateBuffer(desc);
+	strides[BaseNormal] = sizeof(vec3_t);
+
+	for(uint32_t s = 0; s < MAX_SHADER_STAGES; ++s)
+	{
+		desc.name = va("%s tex coords #%d vertex", name, (int)s + 1);
+		desc.byteCount = vertexCount * sizeof(vec2_t);
+		buffers[BaseCount + s * StageCount + StageTexCoords] = CreateBuffer(desc);
+		strides[BaseCount + s * StageCount + StageTexCoords] = sizeof(vec2_t);
+
+		desc.name = va("%s color #%d vertex", name, (int)s + 1);
+		desc.byteCount = vertexCount * sizeof(color4ub_t);
+		buffers[BaseCount + s * StageCount + StageColors] = CreateBuffer(desc);
+		strides[BaseCount + s * StageCount + StageColors] = sizeof(color4ub_t);
+	}
+}
+
+void VertexBuffers::BeginUpload()
+{
+	for(uint32_t b = 0; b < BufferCount; ++b)
+	{
+		mapped[b] = BeginBufferUpload(buffers[b]);
+	}
+}
+
+void VertexBuffers::EndUpload()
+{
+	for(uint32_t b = 0; b < BufferCount; ++b)
+	{
+		EndBufferUpload(buffers[b]);
+		mapped[b] = NULL;
+	}
+}
+
+void VertexBuffers::Upload(uint32_t firstStage, uint32_t stageCount)
+{
+	Q_assert(mapped[0] != NULL);
+
+	const uint32_t batchOffset = batchFirst + batchCount;
+
+	float* pos = (float*)mapped[BasePosition] + 3 * batchOffset;
+	for(int v = 0; v < tess.numVertexes; ++v)
+	{
+		pos[0] = tess.xyz[v][0];
+		pos[1] = tess.xyz[v][1];
+		pos[2] = tess.xyz[v][2];
+		pos += 3;
+	}
+
+	float* nor = (float*)mapped[BaseNormal] + 3 * batchOffset;
+	for(int v = 0; v < tess.numVertexes; ++v)
+	{
+		nor[0] = tess.normal[v][0];
+		nor[1] = tess.normal[v][1];
+		nor[2] = tess.normal[v][2];
+		nor += 3;
+	}
+
+	for(uint32_t s = 0; s < stageCount; ++s)
+	{
+		const stageVars_t& sv = tess.svars[s + firstStage];
+
+		uint8_t* const tcBuffer = mapped[BaseCount + s * StageCount + StageTexCoords];
+		float* tc = (float*)tcBuffer + 2 * batchOffset;
+		memcpy(tc, &sv.texcoords[0], tess.numVertexes * sizeof(vec2_t));
+
+		uint8_t* const colBuffer = mapped[BaseCount + s * StageCount + StageColors];
+		uint32_t* col = (uint32_t*)colBuffer + batchOffset;
+		memcpy(col, &sv.colors[0], tess.numVertexes * sizeof(color4ub_t));
+	}
+}

code/renderer/grp_local.h

@@ -1,6 +1,6 @@
 /*
 ===========================================================================
-Copyright (C) 2022-2023 Gian 'myT' Schellenbaum
+Copyright (C) 2022-2024 Gian 'myT' Schellenbaum
 
 This file is part of Challenge Quake 3 (CNQ3).
 
@@ -24,16 +24,7 @@ along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
 #pragma once
 
 
-#include "tr_local.h"
+#include "srp_local.h"
-#include "rhi_local.h"
-
-
-using namespace RHI;
-
-
-// @TODO: move out
-#define CONCAT_IMM(x, y) x ## y
-#define CONCAT(x, y) CONCAT_IMM(x, y)
 
 
 #pragma pack(push, 4)
@@ -70,36 +61,6 @@ struct WorldPixelRC
 
 #pragma pack(pop)
 
-struct BufferBase
-{
-	bool CanAdd(uint32_t count_)
-	{
-		return batchFirst + batchCount + count_ <= totalCount;
-	}
-
-	void EndBatch()
-	{
-		batchFirst += batchCount;
-		batchCount = 0;
-	}
-
-	void EndBatch(uint32_t size)
-	{
-		batchFirst += size;
-		batchCount = 0;
-	}
-
-	void Rewind()
-	{
-		batchFirst = 0;
-		batchCount = 0;
-	}
-
-	uint32_t totalCount = 0;
-	uint32_t batchFirst = 0;
-	uint32_t batchCount = 0;
-};
-
 struct VertexBuffers : BufferBase
 {
 	enum BaseId
@@ -116,93 +77,10 @@ struct VertexBuffers : BufferBase
 		StageCount
 	};
 
-	void Create(const char* name, MemoryUsage::Id memoryUsage, uint32_t vertexCount)
+	void Create(const char* name, MemoryUsage::Id memoryUsage, uint32_t vertexCount);
-	{
+	void BeginUpload();
-		totalCount = vertexCount;
+	void EndUpload();
-
+	void Upload(uint32_t firstStage, uint32_t stageCount);
-		BufferDesc desc = {};
-		desc.committedResource = true;
-		desc.initialState = ResourceStates::VertexBufferBit;
-		desc.memoryUsage = memoryUsage;
-		
-		desc.name = va("%s position vertex", name);
-		desc.byteCount = vertexCount * sizeof(vec3_t);
-		buffers[BasePosition] = CreateBuffer(desc);
-		strides[BasePosition] = sizeof(vec3_t);
-
-		desc.name = va("%s normal vertex", name);
-		desc.byteCount = vertexCount * sizeof(vec3_t);
-		buffers[BaseNormal] = CreateBuffer(desc);
-		strides[BaseNormal] = sizeof(vec3_t);
-
-		for(uint32_t s = 0; s < MAX_SHADER_STAGES; ++s)
-		{
-			desc.name = va("%s tex coords #%d vertex", name, (int)s + 1);
-			desc.byteCount = vertexCount * sizeof(vec2_t);
-			buffers[BaseCount + s * StageCount + StageTexCoords] = CreateBuffer(desc);
-			strides[BaseCount + s * StageCount + StageTexCoords] = sizeof(vec2_t);
-
-			desc.name = va("%s color #%d vertex", name, (int)s + 1);
-			desc.byteCount = vertexCount * sizeof(color4ub_t);
-			buffers[BaseCount + s * StageCount + StageColors] = CreateBuffer(desc);
-			strides[BaseCount + s * StageCount + StageColors] = sizeof(color4ub_t);
-		}
-	}
-
-	void BeginUpload()
-	{
-		for(uint32_t b = 0; b < BufferCount; ++b)
-		{
-			mapped[b] = BeginBufferUpload(buffers[b]);
-		}
-	}
-
-	void EndUpload()
-	{
-		for(uint32_t b = 0; b < BufferCount; ++b)
-		{
-			EndBufferUpload(buffers[b]);
-			mapped[b] = NULL;
-		}
-	}
-
-	void Upload(uint32_t firstStage, uint32_t stageCount)
-	{
-		Q_assert(mapped[0] != NULL);
-
-		const uint32_t batchOffset = batchFirst + batchCount;
-
-		float* pos = (float*)mapped[BasePosition] + 3 * batchOffset;
-		for(int v = 0; v < tess.numVertexes; ++v)
-		{
-			pos[0] = tess.xyz[v][0];
-			pos[1] = tess.xyz[v][1];
-			pos[2] = tess.xyz[v][2];
-			pos += 3;
-		}
-
-		float* nor = (float*)mapped[BaseNormal] + 3 * batchOffset;
-		for(int v = 0; v < tess.numVertexes; ++v)
-		{
-			nor[0] = tess.normal[v][0];
-			nor[1] = tess.normal[v][1];
-			nor[2] = tess.normal[v][2];
-			nor += 3;
-		}
-
-		for(uint32_t s = 0; s < stageCount; ++s)
-		{
-			const stageVars_t& sv = tess.svars[s + firstStage];
-
-			uint8_t* const tcBuffer = mapped[BaseCount + s * StageCount + StageTexCoords];
-			float* tc = (float*)tcBuffer + 2 * batchOffset;
-			memcpy(tc, &sv.texcoords[0], tess.numVertexes * sizeof(vec2_t));
-
-			uint8_t* const colBuffer = mapped[BaseCount + s * StageCount + StageColors];
-			uint32_t* col = (uint32_t*)colBuffer + batchOffset;
-			memcpy(col, &sv.colors[0], tess.numVertexes * sizeof(color4ub_t));
-		}
-	}
 
 	static const uint32_t BufferCount = BaseCount + StageCount * MAX_SHADER_STAGES;
 	HBuffer buffers[BufferCount] = {};
@@ -210,66 +88,6 @@ struct VertexBuffers : BufferBase
 	uint8_t* mapped[BufferCount] = {};
 };
 
-struct IndexBuffer : BufferBase
-{
-	void Create(const char* name, MemoryUsage::Id memoryUsage, uint32_t indexCount)
-	{
-		totalCount = indexCount;
-
-		BufferDesc desc = {};
-		desc.committedResource = true;
-		desc.initialState = ResourceStates::IndexBufferBit;
-		desc.memoryUsage = memoryUsage;
-		desc.name = va("%s index", name);
-		desc.byteCount = indexCount * sizeof(uint32_t);
-		buffer = CreateBuffer(desc);
-	}
-
-	void BeginUpload()
-	{
-		mapped = (uint32_t*)BeginBufferUpload(buffer);
-	}
-
-	void EndUpload()
-	{
-		EndBufferUpload(buffer);
-		mapped = NULL;
-	}
-
-	void Upload()
-	{
-		Q_assert(mapped != NULL);
-
-		uint32_t* const idx = mapped + batchFirst + batchCount;
-		memcpy(idx, &tess.indexes[0], tess.numIndexes * sizeof(uint32_t));
-	}
-
-	uint32_t* GetCurrentAddress()
-	{
-		return mapped + batchFirst + batchCount;
-	}
-
-	HBuffer buffer = RHI_MAKE_NULL_HANDLE();
-	uint32_t* mapped = NULL;
-};
-
-struct GeometryBuffer : BufferBase
-{
-	void Init(uint32_t count_, uint32_t stride_)
-	{
-		buffer = RHI_MAKE_NULL_HANDLE();
-		byteCount = count_ * stride_;
-		stride = stride_;
-		totalCount = count_;
-		batchFirst = 0;
-		batchCount = 0;
-	}
-
-	HBuffer buffer = RHI_MAKE_NULL_HANDLE();
-	uint32_t byteCount = 0;
-	uint32_t stride = 0;
-};
-
 struct GeometryBuffers
 {
 	void Rewind()
@@ -291,20 +109,6 @@ struct StaticGeometryChunk
 	uint32_t firstCPUIndex;
 };
 
-struct FrameStats
-{
-	enum { MaxFrames = 1024 };
-
-	void EndFrame();
-
-	float temp[MaxFrames];
-	float p2pMS[MaxFrames];
-	stats_t p2pStats;
-	int frameCount;
-	int frameIndex;
-	int skippedFrames;
-};
-
 struct BatchType
 {
 	enum Id
@@ -396,10 +200,6 @@ struct World
 	HBuffer boxVertexBuffer;
 	HBuffer boxIndexBuffer;
 
-	// shader trace
-	HBuffer traceRenderBuffer;
-	HBuffer traceReadbackBuffer;
-
 	// dynamic lights
 	HRootSignature dlRootSignature;
 	HPipeline dlPipelines[CT_COUNT * 2 * 2]; // { cull type, polygon offset, depth test }
@@ -412,176 +212,6 @@ struct World
 	//   we get "light holes" in opaque surfaces, which is not what we want
 };
 
-struct UI
-{
-	void Init();
-	void BeginFrame();
-	void Begin();
-	void End();
-	void DrawBatch();
-	void UISetColor(const uiSetColorCommand_t& cmd);
-	void UIDrawQuad(const uiDrawQuadCommand_t& cmd);
-	void UIDrawTriangle(const uiDrawTriangleCommand_t& cmd);
-
-	// 32-bit needed until the render logic is fixed!
-	typedef uint32_t Index;
-	const IndexType::Id indexType = IndexType::UInt32;
-
-	uint32_t renderPassIndex;
-
-#pragma pack(push, 1)
-	struct Vertex
-	{
-		vec2_t position;
-		vec2_t texCoords;
-		uint32_t color;
-	};
-#pragma pack(pop)
-	int maxIndexCount;
-	int maxVertexCount;
-	int firstIndex;
-	int firstVertex;
-	int indexCount;
-	int vertexCount;
-	HRootSignature rootSignature;
-	HPipeline pipeline;
-	HBuffer indexBuffer;
-	HBuffer vertexBuffer;
-	Index* indices;
-	Vertex* vertices;
-	uint32_t color;
-	const shader_t* shader;
-};
-
-struct MipMapGenerator
-{
-	void Init();
-	void GenerateMipMaps(HTexture texture);
-
-	struct Stage
-	{
-		enum Id
-		{
-			Start,      // gamma to linear
-			DownSample, // down sample on 1 axis
-			End,        // linear to gamma
-			Count
-		};
-
-		HRootSignature rootSignature;
-		HDescriptorTable descriptorTable;
-		HPipeline pipeline;
-	};
-
-	struct MipSlice
-	{
-		enum Id
-		{
-			Float16_0,
-			Float16_1,
-			Count
-		};
-	};
-
-	HTexture textures[MipSlice::Count];
-	Stage stages[3];
-};
-
-struct ImGUI
-{
-	void Init();
-	void RegisterFontAtlas();
-	void Draw();
-	void SafeBeginFrame();
-	void SafeEndFrame();
-
-	struct FrameResources
-	{
-		HBuffer indexBuffer;
-		HBuffer vertexBuffer;
-	};
-
-	HRootSignature rootSignature;
-	HPipeline pipeline;
-	HTexture fontAtlas;
-	FrameResources frameResources[FrameCount];
-	bool frameStarted = false;
-};
-
-struct Nuklear
-{
-	void Init();
-	void BeginFrame();
-	void Begin();
-	void End();
-	void Upload(const nuklearUploadCommand_t& cmd);
-	void Draw(const nuklearDrawCommand_t& cmd);
-
-	struct FrameResources
-	{
-		HBuffer indexBuffer;
-		HBuffer vertexBuffer;
-	};
-
-	HRootSignature rootSignature;
-	HPipeline pipeline;
-	FrameResources frameResources[FrameCount];
-	uint32_t renderPassIndex;
-	int prevScissorRect[4];
-
-	// reset every frame
-	int firstVertex;
-	int firstIndex;
-	int numVertexes; // set in Upload
-	int numIndexes; // set in Upload
-};
-
-struct RenderMode
-{
-	enum Id
-	{
-		None,
-		UI,
-		World,
-		ImGui,
-		Nuklear,
-		Count
-	};
-};
-
-struct RenderPassQueries
-{
-	char name[64];
-	uint32_t gpuDurationUS;
-	uint32_t cpuDurationUS;
-	int64_t cpuStartUS;
-	uint32_t queryIndex;
-};
-
-enum
-{
-	MaxRenderPasses = 64, // cg_draw3dIcons forces tons of 2D/3D transitions...
-	MaxStatsFrameCount = 64
-};
-
-struct RenderPassStats
-{
-	void EndFrame(uint32_t cpu, uint32_t gpu);
-
-	uint32_t samplesCPU[MaxStatsFrameCount];
-	uint32_t samplesGPU[MaxStatsFrameCount];
-	stats_t statsCPU;
-	stats_t statsGPU;
-	uint32_t count;
-	uint32_t index;
-};
-
-struct RenderPassFrame
-{
-	RenderPassQueries passes[MaxRenderPasses];
-	uint32_t count;
-};
-
 #pragma pack(push, 1)
 
 struct PSODesc
@@ -616,6 +246,7 @@ struct PostProcess
 	void SetToneMapInput(HTexture toneMapInput);
 	void SetInverseToneMapInput(HTexture inverseToneMapInput);
 
+private:
 	HPipeline toneMapPipeline;
 	HRootSignature toneMapRootSignature;
 	HDescriptorTable toneMapDescriptorTable;
@@ -645,6 +276,7 @@ struct SMAA
 		};
 	};
 
+private:
 	// fixed
 	HTexture areaTexture;
 	HTexture searchTexture;
@@ -686,27 +318,18 @@ struct GRP : IRenderPipeline
 	void ProcessShader(shader_t& shader) override;
 
 	void ExecuteRenderCommands(const byte* data, bool readbackRequested) override;
-
-	void UISetColor(const uiSetColorCommand_t& cmd) override { ui.UISetColor(cmd); }
-	void UIDrawQuad(const uiDrawQuadCommand_t& cmd) override { ui.UIDrawQuad(cmd); }
-	void UIDrawTriangle(const uiDrawTriangleCommand_t& cmd) override { ui.UIDrawTriangle(cmd); }
-	void DrawSceneView(const drawSceneViewCommand_t& cmd) override { world.DrawSceneView(cmd); }
 	void TessellationOverflow() override { world.RestartBatch(); }
 	void DrawSkyBox() override { world.DrawSkyBox(); }
 	void DrawClouds() override { world.DrawClouds(); }
-
 	void ReadPixels(int w, int h, int alignment, colorSpace_t colorSpace, void* out) override;
 
+	uint32_t GetSamplerDescriptorIndexFromBaseIndex(uint32_t baseIndex) override { return baseIndex; }
+
 	void BeginFrame();
 	void EndFrame();
 
 	uint32_t RegisterTexture(HTexture htexture);
 
-	uint32_t BeginRenderPass(const char* name, float r, float g, float b);
-	void EndRenderPass(uint32_t index);
-
-	void DrawGUI();
-
 	uint32_t CreatePSO(CachedPSO& cache, const char* name);
 
 	void UpdateReadbackTexture();
@@ -718,14 +341,9 @@ struct GRP : IRenderPipeline
 	PostProcess post;
 	SMAA smaa;
 	Nuklear nuklear;
-	bool firstInit = true;
-	RenderMode::Id renderMode; // necessary for sampler selection, useful for debugging
 	float frameSeed;
 	bool updateReadbackTexture;
 
-	// @TODO: what's up with rootSignature and uberRootSignature?
-	// probably need to nuke one of them...
-
 	HTexture renderTarget;
 	TextureFormat::Id renderTargetFormat;
 	HTexture readbackRenderTarget;
@@ -733,14 +351,7 @@ struct GRP : IRenderPipeline
 	HRootSignature rootSignature;
 	HDescriptorTable descriptorTable;
 	uint32_t textureIndex;
-	HSampler samplers[TW_COUNT * TextureFilter::Count * MaxTextureMips];
+	HSampler samplers[BASE_SAMPLER_COUNT]; // all base samplers
-
-	RenderPassFrame renderPasses[FrameCount];
-	RenderPassFrame tempRenderPasses;
-	RenderPassStats renderPassStats[MaxRenderPasses];
-	RenderPassStats wholeFrameStats;
-
-	FrameStats frameStats;
 
 	CachedPSO psos[1024];
 	uint32_t psoCount;
@@ -748,43 +359,3 @@ struct GRP : IRenderPipeline
 };
 
 extern GRP grp;
-
-struct ScopedRenderPass
-{
-	ScopedRenderPass(const char* name, float r, float g, float b)
-	{
-		index = grp.BeginRenderPass(name, r, g, b);
-	}
-
-	~ScopedRenderPass()
-	{
-		grp.EndRenderPass(index);
-	}
-
-	uint32_t index;
-};
-
-#define SCOPED_RENDER_PASS(Name, R, G, B) ScopedRenderPass CONCAT(rp_, __LINE__)(Name, R, G, B)
-
-inline void CmdSetViewportAndScissor(uint32_t x, uint32_t y, uint32_t w, uint32_t h)
-{
-	CmdSetViewport(x, y, w, h);
-	CmdSetScissor(x, y, w, h);
-}
-
-inline void CmdSetViewportAndScissor(const viewParms_t& vp)
-{
-	CmdSetViewportAndScissor(vp.viewportX, vp.viewportY, vp.viewportWidth, vp.viewportHeight);
-}
-
-inline bool IsDepthFadeEnabled(const shader_t& shader)
-{
-	return
-		r_depthFade->integer != 0 &&
-		shader.dfType > DFT_NONE &&
-		shader.dfType < DFT_TBD;
-}
-
-const image_t* GetBundleImage(const textureBundle_t& bundle);
-uint32_t GetSamplerIndex(textureWrap_t wrap, TextureFilter::Id filter, uint32_t minLOD = 0);
-uint32_t GetSamplerIndex(const image_t* image);

code/renderer/grp_main.cpp

@@ -1,6 +1,6 @@
 /*
 ===========================================================================
-Copyright (C) 2022-2023 Gian 'myT' Schellenbaum
+Copyright (C) 2022-2024 Gian 'myT' Schellenbaum
 
 This file is part of Challenge Quake 3 (CNQ3).
 
@@ -22,14 +22,42 @@ along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
 
 
 #include "grp_local.h"
-#include "uber_shaders.h"
+#include "grp_uber_shaders.h"
-#include "hlsl/uber_shader.h"
+#include "compshaders/grp/uber_shader.h"
-#include "hlsl/complete_uber_vs.h"
+#include "compshaders/grp/complete_uber_vs.h"
-#include "hlsl/complete_uber_ps.h"
+#include "compshaders/grp/complete_uber_ps.h"
 #include "../client/cl_imgui.h"
+namespace ui
+{
+#include "compshaders/grp/ui_vs.h"
+#include "compshaders/grp/ui_ps.h"
+}
+namespace imgui
+{
+#include "compshaders/grp/imgui_vs.h"
+#include "compshaders/grp/imgui_ps.h"
+}
+namespace nuklear
+{
+#include "compshaders/grp/nuklear_vs.h"
+#include "compshaders/grp/nuklear_ps.h"
+}
+namespace mip_1
+{
+#include "compshaders/grp/mip_1_cs.h"
+}
+namespace mip_2
+{
+#include "compshaders/grp/mip_2_cs.h"
+}
+namespace mip_3
+{
+#include "compshaders/grp/mip_3_cs.h"
+}
 
 
 GRP grp;
+IRenderPipeline* grpp = &grp;
 
 static const ShaderByteCode vertexShaderByteCodes[8] =
 {
@@ -64,79 +92,6 @@ static const uint32_t uberPixelShaderCacheSize = UBER_SHADER_PS_LIST(PS) 0;
 static UberPixelShaderState uberPixelShaderStates[uberPixelShaderCacheSize];
 
 
-static ImPlotPoint FrameTimeGetter(int index, void*)
-{
-	const FrameStats& fs = grp.frameStats;
-	const int realIndex = (fs.frameIndex + index) % fs.frameCount;
-	const float value = fs.p2pMS[realIndex];
-
-	ImPlotPoint p;
-	p.x = index;
-	p.y = value;
-
-	return p;
-}
-
-static void UpdateAnimatedImage(image_t* image, int w, int h, const byte* data, qbool dirty)
-{
-	if(w != image->width || h != image->height)
-	{
-		// @TODO: ?
-		/*image->width = w;
-		image->height = h;
-		CreateTexture(&d3d.textures[image->texnum], image, 1, w, h);
-		GAL_UpdateTexture(image, 0, 0, 0, w, h, data);*/
-	}
-	else if(dirty)
-	{
-		// @TODO: ?
-		//GAL_UpdateTexture(image, 0, 0, 0, w, h, data);
-	}
-}
-
-const image_t* GetBundleImage(const textureBundle_t& bundle)
-{
-	return R_UpdateAndGetBundleImage(&bundle, &UpdateAnimatedImage);
-}
-
-uint32_t GetSamplerIndex(textureWrap_t wrap, TextureFilter::Id filter, uint32_t minLOD)
-{
-	Q_assert((uint32_t)wrap < TW_COUNT);
-	Q_assert((uint32_t)filter < TextureFilter::Count);
-
-	const uint32_t index =
-		(uint32_t)filter +
-		(uint32_t)TextureFilter::Count * (uint32_t)wrap +
-		(uint32_t)TextureFilter::Count * (uint32_t)TW_COUNT * minLOD;
-
-	return index;
-}
-
-uint32_t GetSamplerIndex(const image_t* image)
-{
-	TextureFilter::Id filter = TextureFilter::Anisotropic;
-	if(r_lego->integer &&
-		grp.renderMode == RenderMode::World &&
-		(image->flags & (IMG_LMATLAS | IMG_EXTLMATLAS | IMG_NOPICMIP)) == 0)
-	{
-		filter = TextureFilter::Point;
-	}
-	else if((image->flags & IMG_NOAF) != 0 ||
-		grp.renderMode != RenderMode::World)
-	{
-		filter = TextureFilter::Linear;
-	}
-
-	int minLOD = 0;
-	if(grp.renderMode == RenderMode::World &&
-		(image->flags & IMG_NOPICMIP) == 0)
-	{
-		minLOD = Com_ClampInt(0, MaxTextureMips - 1, r_picmip->integer);
-	}
-
-	return GetSamplerIndex(image->wrapClampMode, filter, (uint32_t)minLOD);
-}
-
 static bool IsCommutativeBlendState(unsigned int stateBits)
 {
 	const unsigned int blendStates[] =
@@ -159,42 +114,14 @@ static bool IsCommutativeBlendState(unsigned int stateBits)
 	return false;
 }
 
-static cullType_t GetMirrorredCullType(cullType_t cullType)
-{
-	switch(cullType)
-	{
-		case CT_BACK_SIDED: return CT_FRONT_SIDED;
-		case CT_FRONT_SIDED: return CT_BACK_SIDED;
-		default: return CT_TWO_SIDED;
-	}
-}
-
-
-void FrameStats::EndFrame()
-{
-	frameCount = min(frameCount + 1, (int)MaxFrames);
-	frameIndex = (frameIndex + 1) % MaxFrames;
-	Com_StatsFromArray(p2pMS, frameCount, temp, &p2pStats);
-}
-
-
-void RenderPassStats::EndFrame(uint32_t cpu, uint32_t gpu)
-{
-	static uint32_t tempSamples[MaxStatsFrameCount];
-	samplesCPU[index] = cpu;
-	samplesGPU[index] = gpu;
-	count = min(count + 1, (uint32_t)MaxStatsFrameCount);
-	index = (index + 1) % MaxStatsFrameCount;
-	Com_StatsFromArray((const int*)samplesCPU, count, (int*)tempSamples, &statsCPU);
-	Com_StatsFromArray((const int*)samplesGPU, count, (int*)tempSamples, &statsGPU);
-}
-
 
 void GRP::Init()
 {
-	firstInit = RHI::Init();
+	InitDesc initDesc;
+	initDesc.directDescriptorHeapIndexing = false;
+	srp.firstInit = RHI::Init(initDesc);
 
-	if(firstInit)
+	if(srp.firstInit)
 	{
 		RootSignatureDesc desc("main");
 		desc.usingVertexBuffers = true;
@@ -223,6 +150,11 @@ void GRP::Init()
 				Q_assert(!"ParseUberPixelShaderState failed!");
 			}
 		}
+
+		srp.CreateShaderTraceBuffers();
+		DescriptorTableUpdate update;
+		update.SetRWBuffers(1, &srp.traceRenderBuffer, MAX_DRAWIMAGES * 2);
+		UpdateDescriptorTable(descriptorTable, update);
 	}
 
 	// we recreate the samplers on every vid_restart to create the right level
@@ -235,7 +167,7 @@ void GRP::Init()
 			{
 				const textureWrap_t wrap = (textureWrap_t)w;
 				const TextureFilter::Id filter = (TextureFilter::Id)f;
-				const uint32_t s = GetSamplerIndex(wrap, filter, m);
+				const uint32_t s = GetBaseSamplerIndex(wrap, filter, m);
 				SamplerDesc desc(wrap, filter, (float)m);
 				desc.shortLifeTime = true;
 				samplers[s] = CreateSampler(desc);
@@ -291,16 +223,18 @@ void GRP::Init()
 		readbackRenderTarget = RHI::CreateTexture(desc);
 	}
 
-	ui.Init();
+	ui.Init(false, ShaderByteCode(ui::g_vs), ShaderByteCode(ui::g_ps), renderTargetFormat, descriptorTable, &rootSignatureDesc);
 	world.Init();
-	mipMapGen.Init();
+	mipMapGen.Init(false, ShaderByteCode(mip_1::g_cs), ShaderByteCode(mip_2::g_cs), ShaderByteCode(mip_3::g_cs));
-	imgui.Init();
+	const HTexture fontAtlas = imgui.Init(false, ShaderByteCode(imgui::g_vs), ShaderByteCode(imgui::g_ps), renderTargetFormat, descriptorTable, &rootSignatureDesc);
-	nuklear.Init();
+	const uint32_t fontAtlasSRV = RegisterTexture(fontAtlas);
+	imgui.RegisterFontAtlas(fontAtlasSRV);
+	nuklear.Init(false, ShaderByteCode(nuklear::g_vs), ShaderByteCode(nuklear::g_ps), renderTargetFormat, descriptorTable, &rootSignatureDesc);
 	post.Init();
 	post.SetToneMapInput(renderTarget);
 	smaa.Init(); // must be after post
 
-	firstInit = false;
+	srp.firstInit = false;
 }
 
 void GRP::ShutDown(bool fullShutDown)
@@ -310,14 +244,15 @@ void GRP::ShutDown(bool fullShutDown)
 
 void GRP::BeginFrame()
 {
-	renderPasses[tr.frameCount % FrameCount].count = 0;
+	srp.psoCount = psoCount;
-
+	srp.psoChangeCount = world.psoChangeCount;
-	R_SetColorMappings();
+	srp.psoStatsValid = true;
 
+	srp.BeginFrame();
 	smaa.Update();
 
 	// have it be first to we can use ImGUI in the other components too
-	grp.imgui.SafeBeginFrame();
+	grp.imgui.BeginFrame();
 
 	RHI::BeginFrame();
 	ui.BeginFrame();
@@ -330,35 +265,19 @@ void GRP::BeginFrame()
 	CmdClearColorTarget(renderTarget, clearColor);
 
 	// nothing is bound to the command list yet!
-	renderMode = RenderMode::None;
+	srp.renderMode = RenderMode::None;
 
 	frameSeed = (float)rand() / (float)RAND_MAX;
 }
 
 void GRP::EndFrame()
 {
-	DrawGUI();
+	srp.DrawGUI();
-	R_DrawGUI();
+	imgui.Draw(renderTarget);
-	imgui.Draw();
 	post.Draw("Post-process", GetSwapChainTexture());
 	world.EndFrame();
 	UpdateReadbackTexture();
-	RHI::EndFrame();
+	srp.EndFrame();
-
-	if(rhie.presentToPresentUS > 0)
-	{
-		frameStats.p2pMS[frameStats.frameIndex] = (float)rhie.presentToPresentUS / 1000.0f;
-		frameStats.EndFrame();
-	}
-	else
-	{
-		frameStats.skippedFrames++;
-	}
-
-	if(backEnd.renderFrame)
-	{
-		Sys_V_EndFrame();
-	}
 }
 
 void GRP::UpdateReadbackTexture()
@@ -525,206 +444,6 @@ uint32_t GRP::RegisterTexture(HTexture htexture)
 	return index;
 }
 
-uint32_t GRP::BeginRenderPass(const char* name, float r, float g, float b)
-{
-	RenderPassFrame& f = renderPasses[tr.frameCount % FrameCount];
-	if(f.count >= ARRAY_LEN(f.passes))
-	{
-		Q_assert(0);
-		return UINT32_MAX;
-	}
-
-	CmdBeginDebugLabel(name, r, g, b);
-
-	const uint32_t index = f.count++;
-	RenderPassQueries& q = f.passes[index];
-	Q_strncpyz(q.name, name, sizeof(q.name));
-	q.cpuStartUS = Sys_Microseconds();
-	q.queryIndex = CmdBeginDurationQuery();
-
-	return index;
-}
-
-void GRP::EndRenderPass(uint32_t index)
-{
-	RenderPassFrame& f = renderPasses[tr.frameCount % FrameCount];
-	if(index >= f.count)
-	{
-		Q_assert(0);
-		return;
-	}
-
-	CmdEndDebugLabel();
-
-	RenderPassQueries& q = f.passes[index];
-	q.cpuDurationUS = (uint32_t)(Sys_Microseconds() - q.cpuStartUS);
-	CmdEndDurationQuery(q.queryIndex);
-}
-
-void GRP::DrawGUI()
-{
-	uint32_t durations[MaxDurationQueries];
-	GetDurations(durations);
-
-	wholeFrameStats.EndFrame(rhie.renderToPresentUS, durations[0]);
-
-	const RenderPassFrame& currFrame = renderPasses[(tr.frameCount % FrameCount) ^ 1];
-	RenderPassFrame& tempFrame = tempRenderPasses;
-
-	// see if the render pass list is the same as the previous frame's
-	bool sameRenderPass = true;
-	if(currFrame.count == tempRenderPasses.count)
-	{
-		for(uint32_t p = 0; p < currFrame.count; ++p)
-		{
-			if(Q_stricmp(currFrame.passes[p].name, tempRenderPasses.passes[p].name) != 0)
-			{
-				sameRenderPass = false;
-				break;
-			}
-		}
-	}
-	else
-	{
-		sameRenderPass = false;
-	}
-
-	// write out the displayed timings into the temp buffer
-	tempFrame.count = currFrame.count;
-	if(sameRenderPass)
-	{
-		for(uint32_t p = 0; p < currFrame.count; ++p)
-		{
-			const uint32_t index = currFrame.passes[p].queryIndex;
-			if(index < MaxDurationQueries)
-			{
-				renderPassStats[p].EndFrame(currFrame.passes[p].cpuDurationUS, durations[index]);
-				tempFrame.passes[p].gpuDurationUS = renderPassStats[p].statsGPU.median;
-				tempFrame.passes[p].cpuDurationUS = renderPassStats[p].statsCPU.median;
-			}
-		}
-	}
-	else
-	{
-		for(uint32_t p = 0; p < currFrame.count; ++p)
-		{
-			const uint32_t index = currFrame.passes[p].queryIndex;
-			if(index < MaxDurationQueries)
-			{
-				tempFrame.passes[p].gpuDurationUS = durations[index];
-				tempFrame.passes[p].cpuDurationUS = currFrame.passes[p].cpuDurationUS;
-			}
-		}
-	}
-
-	static bool breakdownActive = false;
-	ToggleBooleanWithShortcut(breakdownActive, ImGuiKey_F);
-	GUI_AddMainMenuItem(GUI_MainMenu::Perf, "Frame breakdown", "Ctrl+F", &breakdownActive);
-	if(breakdownActive)
-	{
-		if(ImGui::Begin("Frame breakdown", &breakdownActive, ImGuiWindowFlags_AlwaysAutoResize))
-		{
-			if(BeginTable("Frame breakdown", 3))
-			{
-				TableHeader(3, "Pass", "GPU [us]", "CPU [us]");
-
-				TableRow(3, "Whole frame",
-					va("%d", (int)wholeFrameStats.statsGPU.median),
-					va("%d", (int)wholeFrameStats.statsCPU.median));
-
-				for(uint32_t p = 0; p < currFrame.count; ++p)
-				{
-					const RenderPassQueries& rp = tempFrame.passes[p];
-					if(rp.queryIndex < MaxDurationQueries)
-					{
-						TableRow(3, rp.name,
-							va("%d", (int)rp.gpuDurationUS),
-							va("%d", (int)rp.cpuDurationUS));
-					}
-				}
-
-				ImGui::EndTable();
-			}
-
-			ImGui::Text("PSO count: %d", (int)grp.psoCount);
-			ImGui::Text("PSO changes: %d", (int)grp.world.psoChangeCount);
-		}
-		ImGui::End();
-	}
-
-	// save the current render pass list in the temp buffer
-	memcpy(&tempFrame, &currFrame, sizeof(tempFrame));
-
-	static bool frameTimeActive = false;
-	GUI_AddMainMenuItem(GUI_MainMenu::Perf, "Frame stats", NULL, &frameTimeActive);
-	if(frameTimeActive)
-	{
-		if(ImGui::Begin("Frame stats", &frameTimeActive, ImGuiWindowFlags_AlwaysAutoResize))
-		{
-			if(BeginTable("Frame stats", 2))
-			{
-				const FrameStats& fs = frameStats;
-				const stats_t& s = fs.p2pStats;
-				TableRow2("Skipped frames", fs.skippedFrames);
-				TableRow2("Frame time target", rhie.targetFrameDurationMS);
-				TableRow2("Frame time average", s.average);
-				TableRow2("Frame time std dev.", s.stdDev);
-				TableRow2("Input to render", (float)rhie.inputToRenderUS / 1000.0f);
-				TableRow2("Input to present", (float)rhie.inputToPresentUS / 1000.0f);
-
-				ImGui::EndTable();
-			}
-		}
-		ImGui::End();
-	}
-
-	static bool graphsActive = false;
-	ToggleBooleanWithShortcut(graphsActive, ImGuiKey_G);
-	GUI_AddMainMenuItem(GUI_MainMenu::Perf, "Frame time graphs", "Ctrl+G", &graphsActive);
-	if(graphsActive)
-	{
-		const int windowFlags =
-			ImGuiWindowFlags_NoDecoration |
-			ImGuiWindowFlags_NoBackground |
-			ImGuiWindowFlags_NoMove;
-		ImGui::SetNextWindowSize(ImVec2(glConfig.vidWidth, glConfig.vidHeight / 2), ImGuiCond_Always);
-		ImGui::SetNextWindowPos(ImVec2(0, glConfig.vidHeight / 2), ImGuiCond_Always);
-		if(ImGui::Begin("Frame time graphs", &graphsActive, windowFlags))
-		{
-			const FrameStats& fs = frameStats;
-			const double target = (double)rhie.targetFrameDurationMS;
-
-			static bool autoFit = false;
-			ImGui::Checkbox("Auto-fit", &autoFit);
-
-			if(ImPlot::BeginPlot("Frame Times", ImVec2(-1, -1), ImPlotFlags_NoInputs))
-			{
-				const int axisFlags = 0; // ImPlotAxisFlags_NoTickLabels
-				const int axisFlagsY = axisFlags | (autoFit ? ImPlotAxisFlags_AutoFit : 0);
-				ImPlot::SetupAxes(NULL, NULL, axisFlags, axisFlagsY);
-				ImPlot::SetupAxisLimits(ImAxis_X1, 0, FrameStats::MaxFrames, ImGuiCond_Always);
-				if(!autoFit)
-				{
-					ImPlot::SetupAxisLimits(ImAxis_Y1, max(target - 2.0, 0.0), target + 2.0, ImGuiCond_Always);
-				}
-
-				ImPlot::SetNextFillStyle(IMPLOT_AUTO_COL, 1.0f);
-				ImPlot::SetNextLineStyle(IMPLOT_AUTO_COL, 1.0f);
-				ImPlot::PlotInfLines("Target", &target, 1, ImPlotInfLinesFlags_Horizontal);
-
-				ImPlot::SetNextFillStyle(IMPLOT_AUTO_COL, 1.0f);
-				ImPlot::SetNextLineStyle(IMPLOT_AUTO_COL, 1.0f);
-				ImPlot::PlotLineG("Frame Time", &FrameTimeGetter, NULL, fs.frameCount, ImPlotLineFlags_None);
-
-				ImPlot::EndPlot();
-			}
-		}
-		ImGui::End();
-	}
-
-	GUI_DrawMainMenu();
-}
-
 uint32_t GRP::CreatePSO(CachedPSO& cache, const char* name)
 {
 	Q_assert(cache.stageCount > 0);
@@ -785,6 +504,9 @@ uint32_t GRP::CreatePSO(CachedPSO& cache, const char* name)
 	{
 		uint32_t macroCount = 0;
 		ShaderMacro macros[64];
+		macros[macroCount].name = "DISABLE_PRAGMA_ONCE";
+		macros[macroCount].value = "1";
+		macroCount++;
 		macros[macroCount].name = "STAGE_COUNT";
 		macros[macroCount].value = va("%d", cache.stageCount);
 		macroCount++;
@@ -908,16 +630,16 @@ void GRP::ExecuteRenderCommands(const byte* data, bool readbackRequested)
 		switch(commandId)
 		{
 			case RC_UI_SET_COLOR:
-				UISetColor(*(const uiSetColorCommand_t*)data);
+				ui.CmdSetColor(*(const uiSetColorCommand_t*)data);
 				break;
 			case RC_UI_DRAW_QUAD:
-				UIDrawQuad(*(const uiDrawQuadCommand_t*)data);
+				ui.CmdDrawQuad(*(const uiDrawQuadCommand_t*)data);
 				break;
 			case RC_UI_DRAW_TRIANGLE:
-				UIDrawTriangle(*(const uiDrawTriangleCommand_t*)data);
+				ui.CmdDrawTriangle(*(const uiDrawTriangleCommand_t*)data);
 				break;
 			case RC_DRAW_SCENE_VIEW:
-				DrawSceneView(*(const drawSceneViewCommand_t*)data);
+				world.DrawSceneView(*(const drawSceneViewCommand_t*)data);
 				break;
 			case RC_BEGIN_FRAME:
 				BeginFrame();
@@ -926,7 +648,7 @@ void GRP::ExecuteRenderCommands(const byte* data, bool readbackRequested)
 				EndFrame();
 				break;
 			case RC_BEGIN_UI:
-				ui.Begin();
+				ui.Begin(renderTarget);
 				break;
 			case RC_END_UI:
 				ui.End();
@@ -941,7 +663,7 @@ void GRP::ExecuteRenderCommands(const byte* data, bool readbackRequested)
 				smaa.Draw(((const endSceneCommand_t*)data)->viewParms);
 				break;
 			case RC_BEGIN_NK:
-				nuklear.Begin();
+				nuklear.Begin(renderTarget);
 				break;
 			case RC_END_NK:
 				nuklear.End();
@@ -963,49 +685,5 @@ void GRP::ExecuteRenderCommands(const byte* data, bool readbackRequested)
 
 void GRP::ReadPixels(int w, int h, int alignment, colorSpace_t colorSpace, void* outPixels)
 {
-	MappedTexture mapped;
+	ReadTextureImage(outPixels, readbackRenderTarget, w, h, alignment, colorSpace);
-	BeginTextureReadback(mapped, grp.readbackRenderTarget);
-
-	byte* const out0 = (byte*)outPixels;
-	const byte* const in0 = mapped.mappedData;
-
-	if(colorSpace == CS_RGBA)
-	{
-		const int dstRowSizeNoPadding = w * 4;
-		mapped.dstRowByteCount = AlignUp(dstRowSizeNoPadding, alignment);
-
-		for(int y = 0; y < mapped.rowCount; ++y)
-		{
-			byte* out = out0 + (mapped.rowCount - 1 - y) * mapped.dstRowByteCount;
-			const byte* in = in0 + y * mapped.srcRowByteCount;
-			memcpy(out, in, dstRowSizeNoPadding);
-		}
-	}
-	else if(colorSpace == CS_BGR)
-	{
-		mapped.dstRowByteCount = AlignUp(w * 3, alignment);
-
-		for(int y = 0; y < mapped.rowCount; ++y)
-		{
-			byte* out = out0 + (mapped.rowCount - 1 - y) * mapped.dstRowByteCount;
-			const byte* in = in0 + y * mapped.srcRowByteCount;
-			for(int x = 0; x < mapped.columnCount; ++x)
-			{
-				out[2] = in[0];
-				out[1] = in[1];
-				out[0] = in[2];
-				out += 3;
-				in += 4;
-			}
-		}
-	}
-	else
-	{
-		Q_assert(!"Unsupported color space");
-	}
-
-	EndTextureReadback();
 }
-
-// @TODO: move out once the cinematic render pipeline is added
-IRenderPipeline* renderPipeline = &grp;

code/renderer/grp_post.cpp

@@ -1,6 +1,6 @@
 /*
 ===========================================================================
-Copyright (C) 2023 Gian 'myT' Schellenbaum
+Copyright (C) 2023-2024 Gian 'myT' Schellenbaum
 
 This file is part of Challenge Quake 3 (CNQ3).
 
@@ -24,13 +24,13 @@ along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
 #include "grp_local.h"
 namespace tone_map
 {
-#include "hlsl/post_gamma_vs.h"
+#include "compshaders/grp/post_gamma_vs.h"
-#include "hlsl/post_gamma_ps.h"
+#include "compshaders/grp/post_gamma_ps.h"
 }
 namespace inverse_tone_map
 {
-#include "hlsl/post_inverse_gamma_vs.h"
+#include "compshaders/grp/post_inverse_gamma_vs.h"
-#include "hlsl/post_inverse_gamma_ps.h"
+#include "compshaders/grp/post_inverse_gamma_ps.h"
 }
 
 
@@ -60,7 +60,7 @@ struct InverseGammaPixelRC
 
 void PostProcess::Init()
 {
-	if(!grp.firstInit)
+	if(!srp.firstInit)
 	{
 		return;
 	}

code/renderer/grp_smaa.cpp

@@ -1,6 +1,6 @@
 /*
 ===========================================================================
-Copyright (C) 2022-2023 Gian 'myT' Schellenbaum
+Copyright (C) 2022-2024 Gian 'myT' Schellenbaum
 
 This file is part of Challenge Quake 3 (CNQ3).
 
@@ -24,7 +24,7 @@ along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
 #include "grp_local.h"
 #include "smaa_area_texture.h"
 #include "smaa_search_texture.h"
-#include "hlsl/complete_smaa.h"
+#include "compshaders/grp/complete_smaa.h"
 
 
 #define SMAA_PRESET_LIST(P) \
@@ -96,7 +96,7 @@ void SMAA::Update()
 	bool createPresetDep = justEnabled || (alwaysEnabled && presetChanged);
 	bool destroyPresetDep = justDisabled || (alwaysEnabled && presetChanged);
 
-	if(grp.firstInit)
+	if(srp.firstInit)
 	{
 		// first init or device change: we have nothing to destroy
 		const bool enableSMAA = newMode != Mode::Disabled;

code/renderer/grp_uber_shaders.h

@@ -1,3 +1,29 @@
+/*
+===========================================================================
+Copyright (C) 2023 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// Gameplay Rendering Pipeline - defines all pre-compiled uber pixel shader combinations
+
+
+#pragma once
+
+
 // format: stage_count global_state (stage_state_in_hex)+
 #define UBER_SHADER_PS_LIST(PS) \
 	PS(1_0_0) \

code/renderer/grp_world.cpp

@@ -1,6 +1,6 @@
 /*
 ===========================================================================
-Copyright (C) 2022-2023 Gian 'myT' Schellenbaum
+Copyright (C) 2022-2024 Gian 'myT' Schellenbaum
 
 This file is part of Challenge Quake 3 (CNQ3).
 
@@ -28,25 +28,25 @@ along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
 #include "../client/cl_imgui.h"
 namespace zpp
 {
-#include "hlsl/depth_pre_pass_vs.h"
+#include "compshaders/grp/depth_pre_pass_vs.h"
-#include "hlsl/depth_pre_pass_ps.h"
+#include "compshaders/grp/depth_pre_pass_ps.h"
 }
 namespace fog
 {
-#include "hlsl/fog_vs.h"
+#include "compshaders/grp/fog_vs.h"
 }
 namespace fog_inside
 {
-#include "hlsl/fog_inside_ps.h"
+#include "compshaders/grp/fog_inside_ps.h"
 }
 namespace fog_outside
 {
-#include "hlsl/fog_outside_ps.h"
+#include "compshaders/grp/fog_outside_ps.h"
 }
 namespace dyn_light
 {
-#include "hlsl/dynamic_light_vs.h"
+#include "compshaders/grp/dynamic_light_vs.h"
-#include "hlsl/dynamic_light_ps.h"
+#include "compshaders/grp/dynamic_light_ps.h"
 }
 
 
@@ -126,40 +126,6 @@ static bool HasStaticGeo(int staticGeoChunk, const shader_t* shader)
 		staticGeoChunk < ARRAY_LEN(grp.world.statChunks);
 }
 
-static void UpdateEntityData(bool& depthHack, int entityNum, double originalTime)
-{
-	depthHack = false;
-
-	if(entityNum != ENTITYNUM_WORLD)
-	{
-		backEnd.currentEntity = &backEnd.refdef.entities[entityNum];
-		if(backEnd.currentEntity->intShaderTime)
-			backEnd.refdef.floatTime = originalTime - (double)backEnd.currentEntity->e.shaderTime.iShaderTime / 1000.0;
-		else
-			backEnd.refdef.floatTime = originalTime - backEnd.currentEntity->e.shaderTime.fShaderTime;
-		// we have to reset the shaderTime as well otherwise image animations start
-		// from the wrong frame
-		tess.shaderTime = backEnd.refdef.floatTime - tess.shader->timeOffset;
-
-		// set up the transformation matrix
-		R_RotateForEntity(backEnd.currentEntity, &backEnd.viewParms, &backEnd.orient);
-
-		if(backEnd.currentEntity->e.renderfx & RF_DEPTHHACK)
-		{
-			depthHack = true;
-		}
-	}
-	else
-	{
-		backEnd.currentEntity = &tr.worldEntity;
-		backEnd.refdef.floatTime = originalTime;
-		backEnd.orient = backEnd.viewParms.world;
-		// we have to reset the shaderTime as well otherwise image animations on
-		// the world (like water) continue with the wrong frame
-		tess.shaderTime = backEnd.refdef.floatTime - tess.shader->timeOffset;
-	}
-}
-
 static int GetDynamicLightPipelineIndex(cullType_t cullType, qbool polygonOffset, qbool depthTestEquals)
 {
 	return (int)cullType + CT_COUNT * (int)polygonOffset + CT_COUNT * 2 * (int)depthTestEquals;
@@ -168,7 +134,7 @@ static int GetDynamicLightPipelineIndex(cullType_t cullType, qbool polygonOffset
 
 void World::Init()
 {
-	if(grp.firstInit)
+	if(srp.firstInit)
 	{
 		fogDescriptorTable = RHI_MAKE_NULL_HANDLE();
 	}
@@ -192,7 +158,7 @@ void World::Init()
 		}
 	}
 
-	if(grp.firstInit)
+	if(srp.firstInit)
 	{
 		//
 		// depth pre-pass
@@ -313,23 +279,6 @@ void World::Init()
 			EndBufferUpload(boxVertexBuffer);
 		}
 
-		//
-		// shader trace
-		//
-		{
-			BufferDesc desc("shader trace opaque", 2 * sizeof(uint32_t), ResourceStates::UnorderedAccessBit);
-			traceRenderBuffer = CreateBuffer(desc);
-
-			DescriptorTableUpdate update;
-			update.SetRWBuffers(1, &traceRenderBuffer, MAX_DRAWIMAGES * 2);
-			UpdateDescriptorTable(grp.descriptorTable, update);
-		}
-		{
-			BufferDesc desc("shader trace opaque readback", 2 * sizeof(uint32_t), ResourceStates::Common);
-			desc.memoryUsage = MemoryUsage::Readback;
-			traceReadbackBuffer = CreateBuffer(desc);
-		}
-
 		//
 		// dynamic lights
 		//
@@ -425,34 +374,11 @@ void World::BeginFrame()
 
 void World::EndFrame()
 {
-	tr.tracedWorldShaderIndex = -1;
-	if(tr.traceWorldShader && tr.world != NULL)
-	{
-		// schedule a GPU -> CPU transfer
-		{
-			BufferBarrier barrier(traceRenderBuffer, ResourceStates::CopySourceBit);
-			CmdBarrier(0, NULL, 1, &barrier);
-		}
-		CmdCopyBuffer(traceReadbackBuffer, traceRenderBuffer);
-		{
-			BufferBarrier barrier(traceRenderBuffer, ResourceStates::UnorderedAccessBit);
-			CmdBarrier(0, NULL, 1, &barrier);
-		}
-
-		// grab last frame's result
-		uint32_t* shaderIndices = (uint32_t*)MapBuffer(traceReadbackBuffer);
-		const uint32_t shaderIndex = shaderIndices[RHI::GetFrameIndex() ^ 1];
-		UnmapBuffer(traceReadbackBuffer);
-		if(shaderIndex < (uint32_t)tr.numShaders)
-		{
-			tr.tracedWorldShaderIndex = (int)shaderIndex;
-		}
-	}
 }
 
 void World::Begin()
 {
-	grp.renderMode = RenderMode::World;
+	srp.renderMode = RenderMode::World;
 
 	if(backEnd.viewParms.isPortal)
 	{
@@ -495,7 +421,7 @@ void World::Begin()
 
 void World::End()
 {
-	grp.renderMode = RenderMode::None;
+	srp.renderMode = RenderMode::None;
 }
 
 void World::DrawPrePass(const drawSceneViewCommand_t& cmd)

code/renderer/rhi_local.h

@@ -1,6 +1,6 @@
 /*
 ===========================================================================
-Copyright (C) 2022-2023 Gian 'myT' Schellenbaum
+Copyright (C) 2022-2024 Gian 'myT' Schellenbaum
 
 This file is part of Challenge Quake 3 (CNQ3).
 
@@ -169,6 +169,7 @@ namespace RHI
 			R8_UNorm,
 			Depth24_Stencil8,
 			R10G10B10A2_UNorm,
+			R32_UInt,
 			Count
 		};
 	};
@@ -353,6 +354,11 @@ namespace RHI
 			name = name_;
 			rootSignature = rootSignature_;
 		}
+		explicit GraphicsPipelineDesc(const char* name_)
+		{
+			name = name_;
+			rootSignature = RHI_MAKE_NULL_HANDLE();
+		}
 
 		const char* name = NULL;
 		bool shortLifeTime = false;
@@ -434,6 +440,11 @@ namespace RHI
 			name = name_;
 			rootSignature = rootSignature_;
 		}
+		explicit ComputePipelineDesc(const char* name_)
+		{
+			name = name_;
+			rootSignature = RHI_MAKE_NULL_HANDLE();
+		}
 
 		const char* name = NULL;
 		bool shortLifeTime = false;
@@ -677,7 +688,15 @@ namespace RHI
 		const ShaderMacro* macros = NULL;
 	};
 
-	bool Init(); // true when a full init happened (the device was created)
+	struct InitDesc
+	{
+		// HLSL 6.6 Dynamic Resources
+		// - all shader resources are exclusively used through ResourceDescriptorHeap and SamplerDescriptorHeap
+		// - all root signature and descriptor table functions are disabled
+		bool directDescriptorHeapIndexing = false;
+	};
+
+	bool Init(const InitDesc& desc); // true when a full init happened (the device was created)
 	void ShutDown(bool destroyWindow);
 
 	void BeginFrame();
@@ -721,6 +740,8 @@ namespace RHI
 	void CmdSetViewport(uint32_t x, uint32_t y, uint32_t w, uint32_t h, float minDepth = 0.0f, float maxDepth = 1.0f);
 	void CmdSetScissor(uint32_t x, uint32_t y, uint32_t w, uint32_t h);
 	void CmdSetRootConstants(HRootSignature rootSignature, ShaderStage::Id shaderType, const void* constants);
+	void CmdSetGraphicsRootConstants(uint32_t byteOffset, uint32_t byteCount, const void* constants);
+	void CmdSetComputeRootConstants(uint32_t byteOffset, uint32_t byteCount, const void* constants);
 	void CmdDraw(uint32_t vertexCount, uint32_t firstVertex);
 	void CmdDrawIndexed(uint32_t indexCount, uint32_t firstIndex, uint32_t firstVertex);
 	void CmdDispatch(uint32_t groupCountX, uint32_t groupCountY, uint32_t groupCountZ);
@@ -729,7 +750,7 @@ namespace RHI
 	void CmdBarrier(uint32_t texCount, const TextureBarrier* textures, uint32_t buffCount = 0, const BufferBarrier* buffers = NULL);
 	void CmdClearColorTarget(HTexture texture, const vec4_t clearColor, const Rect* rect = NULL);
 	void CmdClearDepthStencilTarget(HTexture texture, bool clearDepth, float depth, bool clearStencil = false, uint8_t stencil = 0, const Rect* rect = NULL);
-	void CmdClearTextureUAV(HTexture texture, HDescriptorTable descTable, uint32_t tableIndex, uint32_t mipIndex, const uint32_t* values);
+	void CmdClearTextureUAV(HTexture texture, uint32_t mipIndex, const uint32_t* values);
 	void CmdInsertDebugLabel(const char* name, float r = 1.0f, float g = 1.0f, float b = 1.0f);
 	void CmdBeginDebugLabel(const char* name, float r = 1.0f, float g = 1.0f, float b = 1.0f);
 	void CmdEndDebugLabel();
@@ -737,6 +758,15 @@ namespace RHI
 	void CmdCopyBuffer(HBuffer dest, HBuffer source);
 	void CmdSetShadingRate(ShadingRate::Id shadingRate);
 
+	// only available when dynamic resources are enabled
+	uint32_t GetTextureIndexSRV(HTexture texture);
+	uint32_t GetTextureIndexUAV(HTexture texture, uint32_t mipIndex);
+	uint32_t GetBufferIndexSRV(HBuffer buffer);
+	uint32_t GetBufferIndexUAV(HBuffer buffer);
+	uint32_t GetBufferIndexCBV(HBuffer buffer);
+	uint32_t GetSamplerIndex(HSampler sampler);
+	void CmdBarrierUAV();
+
 	// the duration at index 0 is for the entire frame
 	uint32_t GetDurationCount();
 	void GetDurations(uint32_t* gpuMicroSeconds);
@@ -756,6 +786,8 @@ namespace RHI
 
 	void WaitUntilDeviceIsIdle();
 
+	void SubmitAndContinue();
+
 	const Handle HandleIndexBitCount = 16;
 	const Handle HandleIndexBitOffset = 0;
 	const Handle HandleGenBitCount = 10;

code/renderer/shaders/common/blend.hlsli

@@ -0,0 +1,81 @@
+/*
+===========================================================================
+Copyright (C) 2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// Quake 3 blend equations
+
+
+#if !defined(DISABLE_PRAGMA_ONCE)
+#pragma once
+#endif
+
+
+float4 BlendSource(float4 src, float4 dst, uint stateBits)
+{
+	if(stateBits == GLS_SRCBLEND_ZERO)
+		return float4(0.0, 0.0, 0.0, 0.0);
+	else if(stateBits == GLS_SRCBLEND_ONE)
+		return src;
+	else if(stateBits == GLS_SRCBLEND_DST_COLOR)
+		return src * dst;
+	else if(stateBits == GLS_SRCBLEND_ONE_MINUS_DST_COLOR)
+		return src * (float4(1.0, 1.0, 1.0, 1.0) - dst);
+	else if(stateBits == GLS_SRCBLEND_SRC_ALPHA)
+		return src * float4(src.a, src.a, src.a, 1.0);
+	else if(stateBits == GLS_SRCBLEND_ONE_MINUS_SRC_ALPHA)
+		return src * float4(1.0 - src.a, 1.0 - src.a, 1.0 - src.a, 1.0);
+	else if(stateBits == GLS_SRCBLEND_DST_ALPHA)
+		return src * float4(dst.a, dst.a, dst.a, 1.0);
+	else if(stateBits == GLS_SRCBLEND_ONE_MINUS_DST_ALPHA)
+		return src * float4(1.0 - dst.a, 1.0 - dst.a, 1.0 - dst.a, 1.0);
+	else if(stateBits == GLS_SRCBLEND_ALPHA_SATURATE)
+		return src * float4(src.a, src.a, src.a, 1.0);
+	else
+		return src;
+}
+
+float4 BlendDest(float4 src, float4 dst, uint stateBits)
+{
+	if(stateBits == GLS_DSTBLEND_ZERO)
+		return float4(0.0, 0.0, 0.0, 0.0);
+	else if(stateBits == GLS_DSTBLEND_ONE)
+		return dst;
+	else if(stateBits == GLS_DSTBLEND_SRC_COLOR)
+		return dst * src;
+	else if(stateBits == GLS_DSTBLEND_ONE_MINUS_SRC_COLOR)
+		return dst * float4(1.0 - src.r, 1.0 - src.g, 1.0 - src.b, 1.0 - src.a);
+	else if(stateBits == GLS_DSTBLEND_SRC_ALPHA)
+		return dst * float4(src.a, src.a, src.a, 1.0);
+	else if(stateBits == GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA)
+		return dst * float4(1.0 - src.a, 1.0 - src.a, 1.0 - src.a, 0.0);
+	else if(stateBits == GLS_DSTBLEND_DST_ALPHA)
+		return dst * float4(dst.a, dst.a, dst.a, 1.0);
+	else if(stateBits == GLS_DSTBLEND_ONE_MINUS_DST_ALPHA)
+		return dst * float4(1.0 - dst.a, 1.0 - dst.a, 1.0 - dst.a, 1.0);
+	else
+		return float4(0.0, 0.0, 0.0, 0.0);
+}
+
+float4 Blend(float4 src, float4 dst, uint stateBits)
+{
+	float4 srcOut = BlendSource(src, dst, stateBits & GLS_SRCBLEND_BITS);
+	float4 dstOut = BlendDest(src, dst, stateBits & GLS_DSTBLEND_BITS);
+
+	return srcOut + dstOut;
+}

code/renderer/shaders/common/mip_gen.hlsli

@@ -0,0 +1,96 @@
+/*
+===========================================================================
+Copyright (C) 2023 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// mip-map generation
+
+
+#pragma once
+
+
+uint2 MipGen_FixCoords(int2 tc, int2 maxSize, uint clampCoords)
+{
+	if(clampCoords > 0)
+	{
+		// clamp
+		return uint2(clamp(tc, int2(0, 0), maxSize));
+	}
+
+	// repeat
+	return uint2(tc & maxSize);
+}
+
+void MipGen_GammaToLinear(RWTexture2D<float4> dst, RWTexture2D<float4> src, uint3 dtid, float gamma)
+{
+	uint w, h;
+	dst.GetDimensions(w, h);
+	if(any(dtid.xy >= uint2(w, h)))
+	{
+		return;
+	}
+
+	float4 v = src[dtid.xy];
+	dst[dtid.xy] = float4(pow(v.xyz, gamma), v.a);
+}
+
+void MipGen_LinearToGamma(RWTexture2D<float4> dst, RWTexture2D<float4> src, uint3 dtid, float4 blendColor, float intensity, float invGamma)
+{
+	uint w, h;
+	dst.GetDimensions(w, h);
+	if(any(dtid.xy >= uint2(w, h)))
+	{
+		return;
+	}
+
+	// yes, intensity *should* be done in light-linear space
+	// but we keep the old behavior for consistency...
+	float4 in0 = src[dtid.xy];
+	float3 in1 = 0.5 * (in0.rgb + blendColor.rgb);
+	float3 inV = lerp(in0.rgb, in1.rgb, blendColor.a);
+	float3 out0 = pow(max(inV, 0.0), invGamma);
+	float3 out1 = out0 * intensity;
+	float4 outV = saturate(float4(out1, in0.a));
+	dst[dtid.xy] = outV;
+}
+
+void MipGen_DownSample(RWTexture2D<float4> dst, RWTexture2D<float4> src, uint3 dtid, int2 maxSize, uint clampCoords, int2 scale, int2 offset, float4 weights)
+{
+	uint w, h;
+	dst.GetDimensions(w, h);
+	if(any(dtid.xy >= uint2(w, h)))
+	{
+		return;
+	}
+
+#define FixCoords(tc) MipGen_FixCoords(tc, maxSize, clampCoords)
+
+	int2 base = int2(dtid.xy) * scale;
+	float4 r = float4(0, 0, 0, 0);
+	r += src[FixCoords(base - offset * 3)] * weights.x;
+	r += src[FixCoords(base - offset * 2)] * weights.y;
+	r += src[FixCoords(base - offset * 1)] * weights.z;
+	r += src[base] * weights.w;
+	r += src[base + offset] * weights.w;
+	r += src[FixCoords(base + offset * 2)] * weights.z;
+	r += src[FixCoords(base + offset * 3)] * weights.y;
+	r += src[FixCoords(base + offset * 4)] * weights.x;
+	dst[dtid.xy] = r;
+
+#undef FixCoords
+}

code/renderer/shaders/common/state_bits.h.hlsli

@@ -0,0 +1,65 @@
+/*
+===========================================================================
+Copyright (C) 2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// shader stage state constants
+
+
+#if !defined(DISABLE_PRAGMA_ONCE)
+#pragma once
+#endif
+
+
+#define GLS_SRCBLEND_ZERO						0x00000001u
+#define GLS_SRCBLEND_ONE						0x00000002u
+#define GLS_SRCBLEND_DST_COLOR					0x00000003u
+#define GLS_SRCBLEND_ONE_MINUS_DST_COLOR		0x00000004u
+#define GLS_SRCBLEND_SRC_ALPHA					0x00000005u
+#define GLS_SRCBLEND_ONE_MINUS_SRC_ALPHA		0x00000006u
+#define GLS_SRCBLEND_DST_ALPHA					0x00000007u
+#define GLS_SRCBLEND_ONE_MINUS_DST_ALPHA		0x00000008u
+#define GLS_SRCBLEND_ALPHA_SATURATE				0x00000009u
+#define		GLS_SRCBLEND_BITS					0x0000000fu
+
+#define GLS_DSTBLEND_ZERO						0x00000010u
+#define GLS_DSTBLEND_ONE						0x00000020u
+#define GLS_DSTBLEND_SRC_COLOR					0x00000030u
+#define GLS_DSTBLEND_ONE_MINUS_SRC_COLOR		0x00000040u
+#define GLS_DSTBLEND_SRC_ALPHA					0x00000050u
+#define GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA		0x00000060u
+#define GLS_DSTBLEND_DST_ALPHA					0x00000070u
+#define GLS_DSTBLEND_ONE_MINUS_DST_ALPHA		0x00000080u
+#define		GLS_DSTBLEND_BITS					0x000000f0u
+
+#define		GLS_BLEND_BITS						0x000000ffu
+
+#define GLS_DEPTHMASK_TRUE						0x00000100u	// enable depth writes
+
+#define GLS_POLYMODE_LINE						0x00001000u	// wireframe polygon filling, not line rendering
+
+#define GLS_DEPTHTEST_DISABLE					0x00010000u	// disable depth tests
+#define GLS_DEPTHFUNC_EQUAL						0x00020000u
+
+#define GLS_STAGEINDEX_BITS						0x00700000u
+#define GLS_STAGEINDEX_SHIFT					20u
+
+#define GLS_ATEST_GT_0							0x10000000u
+#define GLS_ATEST_LT_80							0x20000000u
+#define GLS_ATEST_GE_80							0x40000000u
+#define		GLS_ATEST_BITS						0x70000000u

code/renderer/shaders/crp/accumdof_accum.hlsl

@@ -0,0 +1,65 @@
+/*
+===========================================================================
+Copyright (C) 2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// accumulation depth of field: accumulation pass
+
+
+#include "common.hlsli"
+
+
+cbuffer RootConstants
+{
+	uint textureIndex;
+};
+
+struct VOut
+{
+	float4 position : SV_Position;
+};
+
+
+#if VERTEX_SHADER
+
+VOut vs(uint id : SV_VertexID)
+{
+	VOut output;
+	output.position = FSTrianglePosFromVertexId(id);
+
+	return output;
+}
+
+#endif
+
+
+#if PIXEL_SHADER
+
+float4 ps(VOut input) : SV_Target
+{
+	Texture2D texture0 = ResourceDescriptorHeap[textureIndex];
+
+	int2 tc = int2(input.position.xy);
+	float3 color = texture0.Load(int3(tc.x, tc.y, 0)).rgb;
+	float weight = 1.0 + Brightness(color);
+	float4 result = float4(color * weight, weight);
+
+	return result;
+}
+
+#endif

code/renderer/shaders/crp/accumdof_debug.hlsl

@@ -0,0 +1,99 @@
+/*
+===========================================================================
+Copyright (C) 2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// accumulation depth of field: debug overlay
+
+
+#include "common.hlsli"
+#include "dof.hlsli"
+
+
+cbuffer RootConstants
+{
+	matrix mvp; // displaced view, to project to CS
+	matrix invMvp; // main view, to unproject to WS
+	uint colorTextureIndex;
+	uint depthTextureIndex;
+	uint debugMode; // 1: colorized coc, 2: constant intensity far field
+	int tcScale;
+	float focusDist;
+	float linearDepthA; // main view, to unproject to WS
+	float linearDepthB;
+	float maxNearCocCS;
+	float maxFarCocCS;
+};
+
+struct VOut
+{
+	float4 position : SV_Position;
+	float2 texCoords : TEXCOORD0;
+};
+
+
+#if VERTEX_SHADER
+
+VOut vs(uint id : SV_VertexID)
+{
+	VOut output;
+	output.position = FSTrianglePosFromVertexId(id);
+	output.texCoords = FSTriangleTCFromVertexId(id);
+
+	return output;
+}
+
+#endif
+
+
+#if PIXEL_SHADER
+
+float4 ps(VOut input) : SV_Target
+{
+	Texture2D colorTexture = ResourceDescriptorHeap[colorTextureIndex];
+	Texture2D<float> depthTexture = ResourceDescriptorHeap[depthTextureIndex];
+
+	int3 tcColor = int3(input.position.xy, 0);
+	int3 tcDepth = int3(input.position.xy / tcScale, 0);
+	float3 color = colorTexture.Load(tcColor).rgb;
+	float depthZW = depthTexture.Load(tcDepth);
+	float depth = LinearDepth(depthZW, linearDepthA, linearDepthB);
+	bool nearField = depth < focusDist;
+	float4 result;
+	if(debugMode == 1)
+	{
+		float quadPosXCS = input.texCoords.x * 2.0 - 1.0;
+		float quadPosYCS = (1.0 - input.texCoords.y) * 2.0 - 1.0;
+		float4 positionWS = mul(invMvp, float4(quadPosXCS, quadPosYCS, depthZW, 1));
+		float4 positionCS = mul(mvp, float4(positionWS.xyz / positionWS.w, 1));
+		float coc = distance(positionCS.xy / positionCS.w, float2(quadPosXCS, quadPosYCS));
+		result = DOF_DebugCoc(color, nearField, saturate(coc / maxNearCocCS), saturate(coc / maxFarCocCS));
+	}
+	else if(debugMode == 2)
+	{
+		result = DOF_DebugFocusPlane(color, nearField);
+	}
+	else
+	{
+		result = float4(color, 1);
+	}
+
+	return result;
+}
+
+#endif

code/renderer/shaders/crp/accumdof_norm.hlsl

@@ -0,0 +1,65 @@
+/*
+===========================================================================
+Copyright (C) 2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// accumulation depth of field: normalization pass
+
+
+#include "common.hlsli"
+
+
+cbuffer RootConstants
+{
+	uint textureIndex;
+};
+
+struct VOut
+{
+	float4 position : SV_Position;
+};
+
+
+#if VERTEX_SHADER
+
+VOut vs(uint id : SV_VertexID)
+{
+	VOut output;
+	output.position = FSTrianglePosFromVertexId(id);
+
+	return output;
+}
+
+#endif
+
+
+#if PIXEL_SHADER
+
+float4 ps(VOut input) : SV_Target
+{
+	Texture2D texture0 = ResourceDescriptorHeap[textureIndex];
+
+	int2 tc = int2(input.position.xy);
+	float4 sum = texture0.Load(int3(tc.x, tc.y, 0));
+	float3 color = saturate(sum.rgb / sum.a);
+	float4 result = float4(color, 1);
+
+	return result;
+}
+
+#endif

code/renderer/shaders/crp/blit.hlsl

@@ -0,0 +1,69 @@
+/*
+===========================================================================
+Copyright (C) 2023 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// blit shader - unlike texture copies, it doesn't care about the specific formats used
+
+
+#include "common.hlsli"
+
+
+cbuffer RootConstants : register(b0)
+{
+	uint textureIndex;
+	uint samplerIndex;
+	float2 tcScale;
+	float2 tcBias;
+};
+
+struct VOut
+{
+	float4 position : SV_Position;
+	float2 texCoords : TEXCOORD0;
+};
+
+
+#if VERTEX_SHADER
+
+VOut vs(uint id : SV_VertexID)
+{
+	VOut output;
+	output.position = FSTrianglePosFromVertexId(id);
+	output.texCoords = FSTriangleTCFromVertexId(id);
+
+	return output;
+}
+
+#endif
+
+
+#if PIXEL_SHADER
+
+float4 ps(VOut input) : SV_Target
+{
+	Texture2D texture0 = ResourceDescriptorHeap[textureIndex];
+	SamplerState sampler0 = SamplerDescriptorHeap[samplerIndex];
+	float2 tc = input.texCoords * tcScale + tcBias;
+	float3 base = texture0.Sample(sampler0, tc).rgb;
+	float4 result = float4(base, 1.0);
+
+	return result;
+}
+
+#endif

code/renderer/shaders/crp/common.hlsli

@@ -0,0 +1,144 @@
+/*
+===========================================================================
+Copyright (C) 2023 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// shared utilities
+
+
+#pragma once
+
+
+#include "../common/state_bits.h.hlsli"
+#include "../common/blend.hlsli"
+
+
+#define PI    3.1415926535897932384626433832795
+#define PI_D2 (PI / 2.0)
+#define PI_D4 (PI / 4.0)
+#define PI_M2 (PI * 2.0)
+
+
+float DegToRad(float deg)
+{
+	return PI * (deg / 180.0);
+}
+
+float RadToDeg(float rad)
+{
+	return 180.0 * (rad / PI);
+}
+
+float Brightness(float3 color)
+{
+	float brightness = dot(color, float3(0.299, 0.587, 0.114));
+
+	return brightness;
+}
+
+float4 MakeGreyscale(float4 input, float amount)
+{
+	float grey = dot(input.rgb, float3(0.299, 0.587, 0.114));
+	float4 result = lerp(input, float4(grey, grey, grey, input.a), amount);
+
+	return result;
+}
+
+/*
+f   = far  clip plane distance
+n   = near clip plane distance
+exp = exponential depth value (as stored in the Z-buffer)
+
+					 2 * f * n             B
+linear(exp) = ----------------------- = -------
+			  (f + n) - exp * (f - n)   exp - A
+
+			f + n               -2 * f * n
+with    A = -----    and    B = ----------
+			f - n                  f - n
+*/
+float LinearDepth(float zwDepth, float A, float B)
+{
+	return B / (zwDepth - A);
+}
+
+float4 FSTrianglePosFromVertexId(uint id)
+{
+	return float4(
+		(float)(id / 2) * 4.0 - 1.0,
+		(float)(id % 2) * 4.0 - 1.0,
+		0.0,
+		1.0);
+}
+
+float2 FSTriangleTCFromVertexId(uint id)
+{
+	return float2(
+		(float)(id / 2) * 2.0,
+		1.0 - (float)(id % 2) * 2.0);
+}
+
+uint PackColor(float4 c)
+{
+	uint4 u = uint4(saturate(c) * 255.0);
+	uint r = u.r | (u.g << 8) | (u.b << 16) | (u.a << 24);
+
+	return r;
+}
+
+float4 UnpackColor(uint c)
+{
+	uint4 u = uint4(c & 0xFFu, (c >> 8) & 0xFFu, (c >> 16) & 0xFFu, (c >> 24) & 0xFFu);
+	float4 r = float4(u) / 255.0;
+
+	return r;
+}
+
+float EaseInCubic(float x)
+{
+	return x * x * x;
+}
+
+float EaseOutCubic(float x)
+{
+	float y = 1.0 - x;
+
+	return 1.0 - y * y * y;
+}
+
+float EaseInOutCubic(float x)
+{
+	if(x < 0.5)
+	{
+		return 4 * x * x * x;
+	}
+
+	float y = -2 * x + 2;
+
+	return 1 - 0.5 * y * y * y;
+}
+
+float EaseInQuad(float x)
+{
+	return x * x;
+}
+
+float SmoothStep(float x)
+{
+	return smoothstep(0.0, 1.0, x);
+}

code/renderer/shaders/crp/dof.hlsli

@@ -0,0 +1,54 @@
+/*
+===========================================================================
+Copyright (C) 2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// depth of field: debug overlay support functions
+
+
+#pragma once
+
+
+float4 DOF_DebugCoc(float3 color, bool nearField, float nearCoc, float farCoc)
+{
+	float blendFactor;
+	float3 target;
+	if(nearField)
+	{
+		blendFactor = 0.5 * nearCoc;
+		target = float3(0, 1, 0);
+	}
+	else
+	{
+		blendFactor = 0.5 * farCoc;
+		target = float3(0, 0, 1);
+	}
+	float4 result = float4(lerp(color, target, blendFactor), 1);
+
+	return result;
+}
+
+float4 DOF_DebugFocusPlane(float3 color, bool nearField)
+{
+	float farFieldFactor = nearField ? 0.0 : 0.25;
+	float3 farFieldColor = float3(0.5, 0, 0.5);
+	float3 mixed = lerp(color, farFieldColor, farFieldFactor);
+	float4 result = float4(mixed, 1);
+
+	return result;
+}

code/renderer/shaders/crp/fog.hlsli

@@ -0,0 +1,58 @@
+/*
+===========================================================================
+Copyright (C) 2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// fog volume (AABB) rendering - shared code
+
+
+struct VOut
+{
+	float4 position : SV_Position;
+	float depthVS : DEPTHVS;
+};
+
+cbuffer RootConstants
+{
+	matrix modelViewMatrix;
+	matrix projectionMatrix;
+	float4 boxMin;
+	float4 boxMax;
+	float4 color;
+	float depth;
+	float linearDepthA;
+	float linearDepthB;
+	uint depthTextureIndex;
+};
+
+
+#ifdef VERTEX_SHADER
+
+VOut vs(float3 positionOS : POSITION)
+{
+	float3 positionWS = boxMin.xyz + positionOS * (boxMax.xyz - boxMin.xyz);
+	float4 positionVS = mul(modelViewMatrix, float4(positionWS, 1));
+
+	VOut output;
+	output.position = mul(projectionMatrix, positionVS);
+	output.depthVS = -positionVS.z;
+
+	return output;
+}
+
+#endif

code/renderer/shaders/crp/fog_inside.hlsl

@@ -0,0 +1,43 @@
+/*
+===========================================================================
+Copyright (C) 2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// fog volume (AABB) seen from inside
+
+
+#include "common.hlsli"
+#include "fog.hlsli"
+
+
+#if PIXEL_SHADER
+
+float4 ps(VOut input) : SV_Target
+{
+	Texture2D<float> depthTexture = ResourceDescriptorHeap[depthTextureIndex];
+	float depthZW = depthTexture.Load(int3(input.position.xy, 0));
+	float depthBuff = LinearDepth(depthZW, linearDepthA, linearDepthB);
+	float depthFrag = input.depthVS;
+	float depthMin = min(depthBuff, depthFrag);
+	float fogOpacity = saturate(depthMin / depth);
+	float4 result = float4(color.rgb, fogOpacity);
+
+	return result;
+}
+
+#endif

code/renderer/shaders/crp/fog_outside.hlsl

@@ -0,0 +1,47 @@
+/*
+===========================================================================
+Copyright (C) 2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// fog volume (AABB) seen from outside
+
+
+#include "common.hlsli"
+#include "fog.hlsli"
+
+
+#ifdef PIXEL_SHADER
+
+float4 ps(VOut input) : SV_Target
+{
+	Texture2D<float> depthTexture = ResourceDescriptorHeap[depthTextureIndex];
+	float depthZW = depthTexture.Load(int3(input.position.xy, 0));
+	float depthBuff = LinearDepth(depthZW, linearDepthA, linearDepthB);
+	float depthFrag = input.depthVS;
+	if(depthFrag > depthBuff)
+	{
+		discard;
+	}
+
+	float fogOpacity = saturate((depthBuff - depthFrag) / depth);
+	float4 result = float4(color.rgb, fogOpacity);
+
+	return result;
+}
+
+#endif

code/renderer/shaders/crp/gatherdof.hlsli

@@ -0,0 +1,61 @@
+/*
+===========================================================================
+Copyright (C) 2023-2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// gather depth of field: support functions
+
+
+#pragma once
+
+
+#include "common.hlsli"
+
+
+#define MAX_BLUR_DIAMETER 32.0
+#define MAX_COC 16.0
+
+
+float CircleOfConfusion(float depth, float focusNearMin, float focusNearMax, float focusFarMin, float focusFarMax)
+{
+	if(depth <= focusNearMin)
+	{
+		return -1.0;
+	}
+
+	if(depth > focusNearMin && depth < focusNearMax)
+	{
+		float t = 1.0 - (depth - focusNearMin) / (focusNearMax - focusNearMin);
+
+		return -t;
+	}
+
+	if(depth > focusFarMin && depth < focusFarMax)
+	{
+		float t = (depth - focusFarMin) / (focusFarMax - focusFarMin);
+
+		return t;
+	}
+
+	if(depth >= focusFarMax)
+	{
+		return 1.0;
+	}
+
+	return 0.0;
+}

code/renderer/shaders/crp/gatherdof_blur.hlsl

@@ -0,0 +1,207 @@
+/*
+===========================================================================
+Copyright (C) 2023-2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// gather depth of field: near-field and far-field blur
+
+
+#include "common.hlsli"
+#include "gatherdof.hlsli"
+
+
+cbuffer RootConstants : register(b0)
+{
+	uint colorTextureIndex;
+	uint nearColorTextureIndex;
+	uint nearMaxCocTextureIndex; // tile
+	uint nearCocTextureIndex; // blurry
+	uint nearOutputTextureIndex;
+	uint farColorTextureIndex;
+	uint farCocTextureIndex; // sharp
+	uint farOutputTextureIndex;
+	uint samplerIndex; // linear/clamp
+	float brightnessScale;
+	float bladeCount;
+	float bokehAngleRad;
+};
+
+// the input is in [0,1]^2, the output polygon is centered at the origin
+float2 MapUnitSquareToPolygon(float2 square, float apertureBladeCount, float apertureAngleRad)
+{
+	// needed to avoid inf/nan propagation through theta for samples
+	// that are exactly in the middle of the quad on either axis
+	// (i.e. square.x|y == 0.5 gets remapped to 0.0)
+	const float epsilon = 0.000001;
+
+	// morph into a square in [-1,1]^2
+	square = square * 2.0 - 1.0;
+
+	// morph the square into a disk
+	// "A Low Distortion Map Between Disk and Square" by Peter Shirley and Kenneth Chiu
+	float radius, angle;
+	float2 square2 = square * square;
+	if(square2.x > square2.y)
+	{
+		// left and right quadrants
+		radius = square.x;
+		angle = (square.y * PI_D4) / (square.x + epsilon);
+	}
+	else
+	{
+		// top and bottom quadrants
+		radius = square.y;
+		angle = PI_D2 - (square.x * PI_D4) / (square.y + epsilon);
+	}
+	if(radius < 0.0)
+	{
+		radius = -radius;
+		angle += PI;
+	}
+
+	// morph the disk into a polygon
+	// "Graphics Gems from CryENGINE 3" by Tiago Sousa
+	float edgeCount = apertureBladeCount;
+	if(edgeCount >= 3.0)
+	{
+		float num = cos(PI / edgeCount);
+		float den0 = PI_M2 / edgeCount;
+		float den1 = (angle * edgeCount + PI) / PI_M2;
+		float den = angle - (den0 * floor(den1));
+		radius *= num / cos(den);
+		angle += apertureAngleRad;
+	}
+
+	float2 disk;
+	sincos(angle, disk.y, disk.x);
+	disk *= radius;
+
+	return disk;
+}
+
+float4 BlurFarField(Texture2D inTexture, SamplerState samplerState, float coc, float2 tc01, float2 pixelSize)
+{
+	const int TAP_COUNT_BLUR = 16;
+	float2 tcScale = 16.0 * coc * pixelSize;
+
+	float4 result = inTexture.SampleLevel(samplerState, tc01, 0);
+	for(int y = 0; y < TAP_COUNT_BLUR; ++y)
+	{
+		for(int x = 0; x < TAP_COUNT_BLUR; ++x)
+		{
+			float2 tcQuad = float2(x, y) / float(TAP_COUNT_BLUR - 1);
+			float2 tcOffset = MapUnitSquareToPolygon(tcQuad, bladeCount, bokehAngleRad) * tcScale;
+			float4 sampleValue = inTexture.SampleLevel(samplerState, tc01 + tcOffset, 0);
+			result += sampleValue;
+		}
+	}
+
+	result /= result.a;
+
+	return result;
+}
+
+float4 BlurNearField(Texture2D inTexture, SamplerState samplerState, float tileMaxCoc, float2 tc01, float2 pixelSize)
+{
+	const int TAP_COUNT_BLUR = 15; // must be odd so we generate 1 sample at 0.5, 0.5 in the quad
+	float2 tcScale = 16.0 * tileMaxCoc * pixelSize;
+	float insideCount = 0.0;
+	float totalCount = 1.0 + float(TAP_COUNT_BLUR * TAP_COUNT_BLUR);
+	float4 result = float4(0, 0, 0, 0);
+	float weightSum = 0.0;
+
+	for(int y = 0; y < TAP_COUNT_BLUR; ++y)
+	{
+		for(int x = 0; x < TAP_COUNT_BLUR; ++x)
+		{
+			float2 tcQuad = float2(x, y) / float(TAP_COUNT_BLUR - 1);
+			float2 tcOffset = MapUnitSquareToPolygon(tcQuad, bladeCount, bokehAngleRad) * tcScale;
+			float4 sampleValue = inTexture.SampleLevel(samplerState, tc01 + tcOffset, 0);
+			float inside = sampleValue.a > 0.0 ? 1.0 : 0.0;
+			float brightnessWeight = 1.0 + brightnessScale * Brightness(sampleValue.rgb);
+			float colorWeight = (sampleValue.a / tileMaxCoc) * brightnessWeight;
+			insideCount += inside;
+			weightSum += inside * colorWeight;
+			result += inside * float4(colorWeight.xxx, 1) * sampleValue;
+		}
+	}
+
+	if(insideCount >= 1.0)
+	{
+		result.rgb /= weightSum;
+		result.a /= insideCount;
+		result.a *= EaseInOutCubic(saturate(2.0 * (insideCount / totalCount)));
+	}
+	else
+	{
+		result = float4(1, 1, 0, 0);
+	}
+
+	return result;
+}
+
+[numthreads(8, 8, 1)]
+void cs(uint3 dtid : SV_DispatchThreadID)
+{
+	uint2 tc = dtid.xy;
+	RWTexture2D<float4> nearOutputTexture = ResourceDescriptorHeap[nearOutputTextureIndex];
+	RWTexture2D<float4> farOutputTexture = ResourceDescriptorHeap[farOutputTextureIndex];
+	uint width, height;
+	farOutputTexture.GetDimensions(width, height);
+	if(any(dtid.xy >= uint2(width, height)))
+	{
+		return;
+	}
+
+	SamplerState samplerState = SamplerDescriptorHeap[samplerIndex];
+	Texture2D colorTexture = ResourceDescriptorHeap[colorTextureIndex];
+	Texture2D nearColorTexture = ResourceDescriptorHeap[nearColorTextureIndex];
+	Texture2D farColorTexture = ResourceDescriptorHeap[farColorTextureIndex];
+	Texture2D<float> nearCocTexture = ResourceDescriptorHeap[nearCocTextureIndex];
+	Texture2D<float> nearMaxCocTexture = ResourceDescriptorHeap[nearMaxCocTextureIndex];
+	Texture2D<float> farCocTexture = ResourceDescriptorHeap[farCocTextureIndex];
+	RWTexture2D<float4> nearOutTexture = ResourceDescriptorHeap[nearOutputTextureIndex];
+	RWTexture2D<float4> farOutTexture = ResourceDescriptorHeap[farOutputTextureIndex];
+	float2 tc01 = (float2(dtid.xy) + float2(0.5, 0.5)) / float2(width, height);
+	float2 pixelSize = float2(1, 1) / float2(width, height);
+	float nearCoc = nearCocTexture.SampleLevel(samplerState, tc01, 0);
+	float nearMaxCoc = nearMaxCocTexture.SampleLevel(samplerState, tc01, 0);
+	float farCoc = farCocTexture.SampleLevel(samplerState, tc01, 0);
+	float4 color = colorTexture.SampleLevel(samplerState, tc01, 0);
+
+	if(nearMaxCoc > 0.0)
+	{
+		nearOutTexture[tc] = BlurNearField(nearColorTexture, samplerState, nearMaxCoc, tc01, pixelSize);
+	}
+	else
+	{
+		// A must be 0 to disable the near field from being blended
+		nearOutTexture[tc] = float4(color.rgb, 0);
+	}
+
+	if(farCoc > 0.0)
+	{
+		farOutTexture[tc] = BlurFarField(farColorTexture, samplerState, farCoc, tc01, pixelSize);
+	}
+	else
+	{
+		// RGB must be 0 to not mess up the fill pass of neighbor pixels that are inside the near field
+		// A must be 0 to disable the far field from being blended
+		farOutTexture[tc] = float4(0, 0, 0, 0);
+	}
+}

code/renderer/shaders/crp/gatherdof_coc_tile_gen.hlsl

@@ -0,0 +1,65 @@
+/*
+===========================================================================
+Copyright (C) 2023-2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// gather depth of field: near-field circle of confusion tile generation
+
+
+#include "common.hlsli"
+#include "gatherdof.hlsli"
+
+
+cbuffer RootConstants : register(b0)
+{
+	uint inputTextureIndex;
+	uint outputTextureIndex;
+};
+
+[numthreads(8, 8, 1)]
+void cs(uint3 dtid : SV_DispatchThreadID, uint3 gid : SV_GroupID, uint3 gtid : SV_GroupThreadID)
+{
+	uint2 tcOut = dtid.xy;
+	RWTexture2D<float> outputTexture = ResourceDescriptorHeap[outputTextureIndex];
+	uint width, height;
+	outputTexture.GetDimensions(width, height);
+	if(any(dtid.xy >= uint2(width, height)))
+	{
+		return;
+	}
+
+	Texture2D<float> inputTexture = ResourceDescriptorHeap[inputTextureIndex];
+
+	// This loop can read out of bounds in the inputTexture.
+	// Each full-res pixel has a corresponding tile pixel, but the reverse isn't always true.
+	// Texture.Load is specced to return 0 on OOB accesses.
+	// Since we max() the values, zeroes have no effect on the final result.
+	uint2 tcInCorner = tcOut * uint2(16, 16);
+	float maxCoc = 0.0;
+	for(uint y = 0; y < 16; y++)
+	{
+		for(uint x = 0; x < 16; x++)
+		{
+			uint2 tcIn = tcInCorner + uint2(x, y);
+			float coc = inputTexture.Load(uint3(tcIn.x, tcIn.y, 0));
+			maxCoc = max(maxCoc, coc);
+		}
+	}
+
+	outputTexture[tcOut] = maxCoc;
+}

code/renderer/shaders/crp/gatherdof_coc_tile_max.hlsl

@@ -0,0 +1,64 @@
+/*
+===========================================================================
+Copyright (C) 2023-2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// gather depth of field: near-field circle of confusion tile dilation
+
+
+#include "common.hlsli"
+#include "gatherdof.hlsli"
+
+
+cbuffer RootConstants : register(b0)
+{
+	uint inputTextureIndex;
+	uint outputTextureIndex;
+	uint samplerIndex; // point/clamp
+};
+
+[numthreads(8, 8, 1)]
+void cs(uint3 dtid : SV_DispatchThreadID)
+{
+	uint2 tc = dtid.xy;
+	RWTexture2D<float> outputTexture = ResourceDescriptorHeap[outputTextureIndex];
+	uint width, height;
+	outputTexture.GetDimensions(width, height);
+	if(any(dtid.xy >= uint2(width, height)))
+	{
+		return;
+	}
+
+	Texture2D<float> inputTexture = ResourceDescriptorHeap[inputTextureIndex];
+	SamplerState samplerState = SamplerDescriptorHeap[samplerIndex];
+
+	float2 tcShifted = float2(tc) + float2(0.5, 0.5);
+	float2 pixelSize = float2(1, 1) / float2(width, height);
+	float maxCoc = 0.0;
+	for(int y = -1; y <= 1; y++)
+	{
+		for(int x = -1; x <= 1; x++)
+		{
+			float2 tc01 = (tcShifted + float2(x, y)) * pixelSize;
+			float coc = inputTexture.SampleLevel(samplerState, tc01, 0);
+			maxCoc = max(maxCoc, coc);
+		}
+	}
+
+	outputTexture[tc] = maxCoc;
+}

code/renderer/shaders/crp/gatherdof_combine.hlsl

@@ -0,0 +1,84 @@
+/*
+===========================================================================
+Copyright (C) 2023-2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// gather depth of field: final blend pass
+
+
+#include "common.hlsli"
+#include "gatherdof.hlsli"
+
+
+cbuffer RootConstants : register(b0)
+{
+	uint nearTextureIndex;
+	uint farTextureIndex;
+	uint nearCocTextureIndex;
+	uint farCocTextureIndex;
+	uint sharpTextureIndex;
+	uint samplerIndex; // point/clamp
+};
+
+struct VOut
+{
+	float4 position : SV_Position;
+	float2 texCoords : TEXCOORD0;
+};
+
+
+#if VERTEX_SHADER
+
+VOut vs(uint id : SV_VertexID)
+{
+	VOut output;
+	output.position = FSTrianglePosFromVertexId(id);
+	output.texCoords = FSTriangleTCFromVertexId(id);
+
+	return output;
+}
+
+#endif
+
+
+#if PIXEL_SHADER
+
+float4 ps(VOut input) : SV_Target
+{
+	SamplerState samplerState = SamplerDescriptorHeap[samplerIndex];
+	Texture2D nearColorTexture = ResourceDescriptorHeap[nearTextureIndex];
+	Texture2D farColorTexture = ResourceDescriptorHeap[farTextureIndex];
+	Texture2D<float> nearCocTexture = ResourceDescriptorHeap[nearCocTextureIndex];
+	Texture2D<float> farCocTexture = ResourceDescriptorHeap[farCocTextureIndex];
+	Texture2D sharpTexture = ResourceDescriptorHeap[sharpTextureIndex];
+
+	float4 nearColor = nearColorTexture.Sample(samplerState, input.texCoords);
+	float4 farColor = farColorTexture.Sample(samplerState, input.texCoords);
+	//float nearCoc = nearCocTexture.Sample(samplerState, input.texCoords);
+	float nearCoc = saturate(nearColor.a);
+	float farCoc = farCocTexture.Sample(samplerState, input.texCoords);
+	float4 sharp = sharpTexture.Sample(samplerState, input.texCoords);
+
+	float3 color = lerp(sharp.rgb, farColor.rgb, farCoc);
+	color = lerp(color, nearColor.rgb, nearCoc);
+	float4 result = float4(color, 1.0);
+
+	return result;
+}
+
+#endif

code/renderer/shaders/crp/gatherdof_debug.hlsl

@@ -0,0 +1,93 @@
+/*
+===========================================================================
+Copyright (C) 2023-2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// gather depth of field: debug overlay
+
+
+#include "common.hlsli"
+#include "gatherdof.hlsli"
+#include "dof.hlsli"
+
+
+cbuffer RootConstants : register(b0)
+{
+	uint colorTextureIndex;
+	uint depthTextureIndex;
+	uint debugMode;
+	float linearDepthA;
+	float linearDepthB;
+	float focusNearMin;
+	float focusNearMax;
+	float focusFarMin;
+	float focusFarMax;
+	float focusDist;
+};
+
+struct VOut
+{
+	float4 position : SV_Position;
+	float2 texCoords : TEXCOORD0;
+};
+
+
+#if VERTEX_SHADER
+
+VOut vs(uint id : SV_VertexID)
+{
+	VOut output;
+	output.position = FSTrianglePosFromVertexId(id);
+	output.texCoords = FSTriangleTCFromVertexId(id);
+
+	return output;
+}
+
+#endif
+
+
+#if PIXEL_SHADER
+
+float4 ps(VOut input) : SV_Target
+{
+	Texture2D colorTexture = ResourceDescriptorHeap[colorTextureIndex];
+	Texture2D<float> depthTexture = ResourceDescriptorHeap[depthTextureIndex];
+	uint3 tc = uint3(input.position.x, input.position.y, 0);
+	float3 color = colorTexture.Load(tc).rgb;
+	float depthZW = depthTexture.Load(tc);
+	float depth = LinearDepth(depthZW, linearDepthA, linearDepthB);
+	float coc = CircleOfConfusion(depth, focusNearMin, focusNearMax, focusFarMin, focusFarMax);
+	float nearField = coc < 0.0;
+	float4 result;
+	if(debugMode == 1)
+	{
+		result = DOF_DebugCoc(color, nearField, saturate(-coc), saturate(coc));
+	}
+	else if(debugMode == 2)
+	{
+		result = DOF_DebugFocusPlane(color, nearField);
+	}
+	else
+	{
+		result = float4(color, 1);
+	}
+
+	return result;
+}
+
+#endif

code/renderer/shaders/crp/gatherdof_fill.hlsl

@@ -0,0 +1,76 @@
+/*
+===========================================================================
+Copyright (C) 2023-2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// gather depth of field: max blur post-filter to combat undersampling
+
+
+#include "common.hlsli"
+#include "gatherdof.hlsli"
+
+
+cbuffer RootConstants : register(b0)
+{
+	uint nearInputTextureIndex;
+	uint nearOutputTextureIndex;
+	uint farInputTextureIndex;
+	uint farOutputTextureIndex;
+	uint samplerIndex; // point/clamp
+};
+
+[numthreads(8, 8, 1)]
+void cs(uint3 dtid : SV_DispatchThreadID)
+{
+	uint2 tc = dtid.xy;
+	RWTexture2D<float4> nearOutputTexture = ResourceDescriptorHeap[nearOutputTextureIndex];
+	RWTexture2D<float4> farOutputTexture = ResourceDescriptorHeap[farOutputTextureIndex];
+	uint width, height, levels;
+	nearOutputTexture.GetDimensions(width, height);
+	if(any(dtid.xy >= uint2(width, height)))
+	{
+		return;
+	}
+
+	SamplerState samplerState = SamplerDescriptorHeap[samplerIndex];
+	Texture2D nearInputTexture = ResourceDescriptorHeap[nearInputTextureIndex];
+	Texture2D farInputTexture = ResourceDescriptorHeap[farInputTextureIndex];
+
+	float2 tc01 = (float2(tc) + float2(0.5, 0.5)) / float2(width, height);
+	float2 pixelSize = float2(1, 1) / float2(width, height);
+	float4 nearFilled = float4(0, 0, 0, 0);
+	float4 farFilled = float4(0, 0, 0, 0);
+	for(int y = -1; y <= 1; y++)
+	{
+		for(int x = -1; x <= 1; x++)
+		{
+			float2 tcSample01 = tc01 + float2(x, y) * pixelSize;
+			float4 nearSample = nearInputTexture.SampleLevel(samplerState, tcSample01, 0);
+			float4 farSample = farInputTexture.SampleLevel(samplerState, tcSample01, 0);
+			nearFilled = max(nearFilled, nearSample);
+			farFilled = max(farFilled, farSample);
+		}
+	}
+
+	// make sure to keep the original blend factors
+	nearFilled.a = nearInputTexture.Load(uint3(tc.x, tc.y, 0)).a;
+	farFilled.a = farInputTexture.Load(uint3(tc.x, tc.y, 0)).a;
+
+	nearOutputTexture[tc] = nearFilled;
+	farOutputTexture[tc] = farFilled;
+}

code/renderer/shaders/crp/gatherdof_split.hlsl

@@ -0,0 +1,78 @@
+/*
+===========================================================================
+Copyright (C) 2023-2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// gather depth of field: field split and CoC generation
+
+
+#include "common.hlsli"
+#include "gatherdof.hlsli"
+
+
+cbuffer RootConstants : register(b0)
+{
+	uint depthTextureIndex;
+	uint colorTextureIndex;
+	uint nearColorTextureIndex;
+	uint farColorTextureIndex;
+	uint nearCocTextureIndex;
+	uint farCocTextureIndex;
+	float linearDepthA;
+	float linearDepthB;
+	float focusNearMin;
+	float focusNearMax;
+	float focusFarMin;
+	float focusFarMax;
+	float brightnessScale;
+};
+
+[numthreads(8, 8, 1)]
+void cs(uint3 dtid : SV_DispatchThreadID)
+{
+	uint2 tc = dtid.xy;
+	Texture2D colorTexture = ResourceDescriptorHeap[colorTextureIndex];
+	uint width, height, levels;
+	colorTexture.GetDimensions(0, width, height, levels);
+	if(any(dtid.xy >= uint2(width, height)))
+	{
+		return;
+	}
+
+	Texture2D<float> depthTexture = ResourceDescriptorHeap[depthTextureIndex];
+	RWTexture2D<float4> nearColorTexture = ResourceDescriptorHeap[nearColorTextureIndex];
+	RWTexture2D<float4> farColorTexture = ResourceDescriptorHeap[farColorTextureIndex];
+	RWTexture2D<float> nearCocTexture = ResourceDescriptorHeap[nearCocTextureIndex];
+	RWTexture2D<float> farCocTexture = ResourceDescriptorHeap[farCocTextureIndex];
+
+	float4 color = colorTexture[tc];
+	float depthZW = depthTexture[tc];
+	float depth = LinearDepth(depthZW, linearDepthA, linearDepthB);
+	float coc = CircleOfConfusion(depth, focusNearMin, focusNearMax, focusFarMin, focusFarMax);
+	float nearCoc = max(-coc, 0.0);
+	float farCoc = max(coc, 0.0);
+	float brightnessWeight = 1.0 + brightnessScale * Brightness(color.rgb);
+	float farWeight = farCoc * brightnessWeight;
+	float4 nearColor = float4(color.rgb, nearCoc);
+	float4 farColor = float4(color.rgb * farWeight, farWeight);
+
+	nearColorTexture[tc] = nearColor;
+	farColorTexture[tc] = farColor;
+	nearCocTexture[tc] = nearCoc;
+	farCocTexture[tc] = farCoc;
+}

code/renderer/shaders/crp/imgui.hlsl

@@ -0,0 +1,73 @@
+/*
+===========================================================================
+Copyright (C) 2023 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// Dear ImGui integration
+
+
+struct VOut
+{
+	float4 pos : SV_POSITION;
+	float4 col : COLOR0;
+	float2 uv : TEXCOORD0;
+};
+
+cbuffer RootConstants : register(b0)
+{
+	float4x4 projectionMatrix;
+	uint textureIndex;
+	uint samplerIndex;
+	float mipIndex;
+};
+
+
+#if VERTEX_SHADER
+
+struct VIn
+{
+	float2 pos : POSITION;
+	float4 col : COLOR0;
+	float2 uv : TEXCOORD0;
+};
+
+VOut vs(VIn input)
+{
+	VOut output;
+	output.pos = mul(projectionMatrix, float4(input.pos.xy, 0.0, 1.0));
+	output.col = input.col;
+	output.uv = input.uv;
+
+	return output;
+}
+
+#endif
+
+
+#if PIXEL_SHADER
+
+float4 ps(VOut input) : SV_Target
+{
+	Texture2D texture0 = ResourceDescriptorHeap[textureIndex];
+	SamplerState sampler0 = SamplerDescriptorHeap[samplerIndex];
+	float4 result = input.col * texture0.SampleLevel(sampler0, input.uv, mipIndex);
+
+	return result;
+}
+
+#endif

code/renderer/shaders/crp/mip_1.hlsl

@@ -0,0 +1,40 @@
+/*
+===========================================================================
+Copyright (C) 2023 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// mip-map generation: gamma-space to linear-space transform
+
+
+#include "../common/mip_gen.hlsli"
+
+
+cbuffer RootConstants
+{
+	float gamma;
+	uint srcTexture;
+	uint dstTexture;
+}
+
+[numthreads(8, 8, 1)]
+void cs(uint3 id : SV_DispatchThreadID)
+{
+	RWTexture2D<float4> src = ResourceDescriptorHeap[srcTexture];
+	RWTexture2D<float4> dst = ResourceDescriptorHeap[dstTexture];
+	MipGen_GammaToLinear(dst, src, id, gamma);
+}

code/renderer/shaders/crp/mip_2.hlsl

@@ -0,0 +1,46 @@
+/*
+===========================================================================
+Copyright (C) 2023 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// mip-map generation: 8-tap 1D filter
+
+
+#include "../common/mip_gen.hlsli"
+
+
+cbuffer RootConstants
+{
+	float4 weights;
+	int2 maxSize;
+	int2 scale;
+	int2 offset;
+	uint clampMode; // 0 = repeat
+	uint srcMip;
+	uint dstMip;
+	uint srcTexture;
+	uint dstTexture;
+}
+
+[numthreads(8, 8, 1)]
+void cs(uint3 id : SV_DispatchThreadID)
+{
+	RWTexture2D<float4> src = ResourceDescriptorHeap[srcTexture];
+	RWTexture2D<float4> dst = ResourceDescriptorHeap[dstTexture];
+	MipGen_DownSample(dst, src, id, maxSize, clampMode, scale, offset, weights);
+}

code/renderer/shaders/crp/mip_3.hlsl

@@ -0,0 +1,44 @@
+/*
+===========================================================================
+Copyright (C) 2023 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// mip-map generation: linear-space to gamma-space transform
+
+
+#include "../common/mip_gen.hlsli"
+
+
+cbuffer RootConstants
+{
+	float4 blendColor;
+	float intensity;
+	float invGamma; // 1.0 / gamma
+	uint srcMip;
+	uint dstMip;
+	uint srcTexture;
+	uint dstTexture;
+}
+
+[numthreads(8, 8, 1)]
+void cs(uint3 id : SV_DispatchThreadID)
+{
+	RWTexture2D<float4> src = ResourceDescriptorHeap[srcTexture];
+	RWTexture2D<float4> dst = ResourceDescriptorHeap[dstTexture];
+	MipGen_LinearToGamma(dst, src, id, blendColor, intensity, invGamma);
+}

code/renderer/shaders/crp/nuklear.hlsl

@@ -0,0 +1,72 @@
+/*
+===========================================================================
+Copyright (C) 2023 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// Nuklear integration
+
+
+struct VOut
+{
+	float4 pos : SV_POSITION;
+	float4 col : COLOR0;
+	float2 uv : TEXCOORD0;
+};
+
+cbuffer RootConstants
+{
+	float4x4 projectionMatrix;
+	uint textureIndex;
+	uint samplerIndex;
+};
+
+
+#if VERTEX_SHADER
+
+struct VIn
+{
+	float2 pos : POSITION;
+	float4 col : COLOR0;
+	float2 uv : TEXCOORD0;
+};
+
+VOut vs(VIn input)
+{
+	VOut output;
+	output.pos = mul(projectionMatrix, float4(input.pos.xy, 0.0, 1.0));
+	output.col = input.col;
+	output.uv = input.uv;
+
+	return output;
+}
+
+#endif
+
+
+#if PIXEL_SHADER
+
+float4 ps(VOut input) : SV_Target
+{
+	Texture2D texture0 = ResourceDescriptorHeap[textureIndex];
+	SamplerState sampler0 = SamplerDescriptorHeap[samplerIndex];
+	float4 result = input.col * texture0.Sample(sampler0, input.uv);
+
+	return result;
+}
+
+#endif

code/renderer/shaders/crp/oit.h.hlsli

@@ -0,0 +1,58 @@
+/*
+===========================================================================
+Copyright (C) 2023 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// shared structures and constants used to implement order-independent transparency
+
+
+#pragma once
+
+
+#if defined(__cplusplus)
+	#pragma pack(push, 4)
+	typedef uint32_t uint;
+#endif
+
+#define OIT_MAX_FRAGMENTS_PER_PIXEL 32
+#define OIT_AVG_FRAGMENTS_PER_PIXEL 16
+
+struct OIT_Counter
+{
+	uint fragmentCount;
+	uint maxFragmentCount;
+	uint overflowCount;
+};
+
+struct OIT_Fragment
+{
+	uint color;
+	float depth; // higher is further away from the camera
+	uint stateBits; // GLS_* stage bits + stage index
+	uint next;
+	uint shaderTrace; // shader index: 14 - frame index: 2 - enable: 1
+	uint depthFadeDistOffset; // offset: fp16 - distance: fp16
+	uint depthFadeScaleBias; // enable: 1 - color bias: 4 - color scale: 4
+	// @TODO: move the 9 bits from depthFadeScaleBias into shaderTrace
+};
+
+#if defined(__cplusplus)
+	#pragma pack(pop)
+	static_assert(sizeof(OIT_Counter) == 12, "sizeof(OIT_Counter) is wrong");
+	static_assert(sizeof(OIT_Fragment) == 28, "sizeof(OIT_Fragment) is wrong");
+#endif

code/renderer/shaders/crp/opaque.hlsl

@@ -0,0 +1,131 @@
+/*
+===========================================================================
+Copyright (C) 2023 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// generic shader for opaque surfaces
+
+
+#include "common.hlsli"
+#include "world.h.hlsli"
+#include "world.hlsli"
+
+
+cbuffer RootConstants
+{
+	// geometry
+	matrix modelViewMatrix;
+	matrix projectionMatrix;
+	float4 clipPlane;
+
+	// general
+	uint textureIndex;
+	uint samplerIndex;
+	uint shaderIndexBufferIndex;
+	uint alphaTest;
+	float greyscale;
+
+	// shader trace
+	uint shaderTrace; // shader index: 14 - frame index: 2 - enable: 1
+	uint centerPixel; // y: 16 - x: 16
+
+	// @TODO: dither
+	// @TODO: Voronoi tiling
+};
+
+
+#if VERTEX_SHADER
+
+struct VIn
+{
+	float3 position : POSITION;
+	float3 normal : NORMAL;
+	float2 texCoords : TEXCOORD0;
+	float4 color : COLOR0;
+};
+
+#endif
+
+struct VOut
+{
+	float4 position : SV_Position;
+	float3 normal : NORMAL;
+	float2 texCoords : TEXCOORD0;
+	float4 color : COLOR0;
+	float clipDist : SV_ClipDistance0;
+	float2 proj2232 : PROJ;
+	float depthVS : DEPTHVS;
+};
+
+
+#if VERTEX_SHADER
+
+VOut vs(VIn input)
+{
+	float4 positionVS = mul(modelViewMatrix, float4(input.position.xyz, 1));
+
+	VOut output;
+	output.position = mul(projectionMatrix, positionVS);
+	output.normal = input.normal;
+	output.texCoords = input.texCoords;
+	output.color = input.color;
+	output.clipDist = dot(positionVS, clipPlane);
+	output.proj2232 = float2(-projectionMatrix[2][2], projectionMatrix[2][3]);
+	output.depthVS = -positionVS.z;
+
+	return output;
+}
+
+#endif
+
+
+#if PIXEL_SHADER
+
+float4 ps(VOut input) : SV_Target
+{
+	// @TODO: Voronoi tiling
+	Texture2D texture0 = ResourceDescriptorHeap[textureIndex];
+	SamplerState sampler0 = ResourceDescriptorHeap[samplerIndex];
+	float4 dst = texture0.Sample(sampler0, input.texCoords) * input.color;
+	if(FailsAlphaTest(dst.a, alphaTest))
+	{
+		discard;
+	}
+
+	dst = MakeGreyscale(dst, greyscale);
+
+	// @TODO: dithering (need to figure out the tone mapping function first)
+
+	if(shaderTrace & 1)
+	{
+		// we only store the shader index of 1 pixel
+		uint2 fragmentCoords = uint2(input.position.xy);
+		uint2 centerCoords = uint2(centerPixel & 0xFFFF, centerPixel >> 16);
+		if(all(fragmentCoords == centerCoords))
+		{
+			RWByteAddressBuffer shaderIndexBuffer = ResourceDescriptorHeap[shaderIndexBufferIndex];
+			uint frameIndex = (shaderTrace >> 1) & 3;
+			uint shaderIndex = shaderTrace >> 3;
+			shaderIndexBuffer.Store(frameIndex * 4, shaderIndex);
+		}
+	}
+
+	return dst;
+}
+
+#endif

code/renderer/shaders/crp/tone_map.hlsl

@@ -0,0 +1,74 @@
+/*
+===========================================================================
+Copyright (C) 2023 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// post-processing: moves from linear to gamma space
+// applies r_gamma, r_brightness, r_greyscale
+
+
+#include "common.hlsli"
+
+
+struct VOut
+{
+	float4 position : SV_Position;
+	float2 texCoords : TEXCOORD0;
+};
+
+cbuffer RootConstants
+{
+	uint textureIndex;
+	uint samplerIndex;
+	float invGamma;
+	float brightness;
+	float greyscale;
+};
+
+
+#if VERTEX_SHADER
+
+VOut vs(uint id : SV_VertexID)
+{
+	VOut output;
+	output.position = FSTrianglePosFromVertexId(id);
+	output.texCoords = FSTriangleTCFromVertexId(id);
+
+	return output;
+}
+
+#endif
+
+
+#if PIXEL_SHADER
+
+// X3571: pow(f, e) won't work if f is negative
+#pragma warning(disable : 3571)
+
+float4 ps(VOut input) : SV_Target
+{
+	Texture2D texture0 = ResourceDescriptorHeap[textureIndex];
+	SamplerState sampler0 = SamplerDescriptorHeap[samplerIndex];
+	float3 base = texture0.Sample(sampler0, input.texCoords).rgb;
+	float3 gc = pow(base, invGamma) * brightness;
+	float4 result = MakeGreyscale(float4(gc.rgb, 1.0), greyscale);
+
+	return result;
+}
+
+#endif

code/renderer/shaders/crp/tone_map_inverse.hlsl

@@ -0,0 +1,72 @@
+/*
+===========================================================================
+Copyright (C) 2023 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// post-processing: moves from gamma to linear space
+
+
+#include "common.hlsli"
+
+
+struct VOut
+{
+	float4 position : SV_Position;
+	float2 texCoords : TEXCOORD0;
+};
+
+cbuffer RootConstants
+{
+	uint textureIndex;
+	uint samplerIndex;
+	float gamma;
+	float invBrightness;
+};
+
+
+#if VERTEX_SHADER
+
+VOut vs(uint id : SV_VertexID)
+{
+	VOut output;
+	output.position = FSTrianglePosFromVertexId(id);
+	output.texCoords = FSTriangleTCFromVertexId(id);
+
+	return output;
+}
+
+#endif
+
+
+#if PIXEL_SHADER
+
+// X3571: pow(f, e) won't work if f is negative
+#pragma warning(disable : 3571)
+
+float4 ps(VOut input) : SV_Target
+{
+	Texture2D texture0 = ResourceDescriptorHeap[textureIndex];
+	SamplerState sampler0 = SamplerDescriptorHeap[samplerIndex];
+	float3 base = texture0.Sample(sampler0, input.texCoords).rgb;
+	float3 linearSpace = pow(base * invBrightness, gamma);
+	float4 result = float4(linearSpace, 1.0);
+
+	return result;
+}
+
+#endif

code/renderer/shaders/crp/transp_draw.hlsl

@@ -0,0 +1,136 @@
+/*
+===========================================================================
+Copyright (C) 2023 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// add fragments of transparent surfaces to per-pixel linked lists
+
+
+#include "common.hlsli"
+#include "world.h.hlsli"
+#include "world.hlsli"
+#include "oit.h.hlsli"
+
+
+cbuffer RootConstants
+{
+	matrix modelViewMatrix;
+	matrix projectionMatrix;
+	float4 clipPlane;
+
+	uint textureIndex;
+	uint samplerIndex;
+	uint alphaTest;
+	uint counterBuffer;
+	uint indexTexture;
+	uint fragmentBuffer;
+	float greyscale;
+	uint stateBits;
+	uint shaderTrace;
+	uint depthFadeDistOffset; // offset: fp16 - distance: fp16
+	uint depthFadeScaleBias; // enable: 1 - color bias: 4 - color scale: 4
+};
+
+#if VERTEX_SHADER
+
+struct VIn
+{
+	float3 position : POSITION;
+	float3 normal : NORMAL;
+	float2 texCoords : TEXCOORD0;
+	float4 color : COLOR0;
+};
+
+#endif
+
+struct VOut
+{
+	float4 position : SV_Position;
+	float3 normal : NORMAL;
+	float2 texCoords : TEXCOORD0;
+	float4 color : COLOR0;
+	float clipDist : SV_ClipDistance0;
+	float2 proj2232 : PROJ;
+	float depthVS : DEPTHVS;
+};
+
+
+#if VERTEX_SHADER
+
+VOut vs(VIn input)
+{
+	float4 positionVS = mul(modelViewMatrix, float4(input.position.xyz, 1));
+
+	VOut output;
+	output.position = mul(projectionMatrix, positionVS);
+	output.normal = input.normal;
+	output.texCoords = input.texCoords;
+	output.color = input.color;
+	output.clipDist = dot(positionVS, clipPlane);
+	output.proj2232 = float2(-projectionMatrix[2][2], projectionMatrix[2][3]);
+	output.depthVS = -positionVS.z;
+
+	return output;
+}
+
+#endif
+
+
+#if PIXEL_SHADER
+
+[earlydepthstencil]
+void ps(VOut input)
+{
+	Texture2D texture0 = ResourceDescriptorHeap[textureIndex];
+	SamplerState sampler0 = SamplerDescriptorHeap[samplerIndex];
+	float4 dst = texture0.Sample(sampler0, input.texCoords) * input.color;
+	if(FailsAlphaTest(dst.a, alphaTest))
+	{
+		return;
+	}
+
+	dst = MakeGreyscale(dst, greyscale);
+
+	RWStructuredBuffer<OIT_Counter> counter = ResourceDescriptorHeap[counterBuffer];
+	uint fragmentIndex;
+	InterlockedAdd(counter[0].fragmentCount, 1, fragmentIndex);
+	if(fragmentIndex < counter[0].maxFragmentCount)
+	{
+		RWTexture2D<uint> indexTex = ResourceDescriptorHeap[indexTexture];
+		RWStructuredBuffer<OIT_Fragment> fragments = ResourceDescriptorHeap[fragmentBuffer];
+		uint prevFragmentIndex;
+		InterlockedExchange(indexTex[int2(input.position.xy)], fragmentIndex, prevFragmentIndex);
+		OIT_Fragment fragment;
+		fragment.color = PackColor(dst);
+		fragment.depth = input.depthVS;
+		fragment.stateBits = stateBits;
+		fragment.next = prevFragmentIndex;
+		fragment.shaderTrace = shaderTrace;
+		fragment.depthFadeDistOffset = depthFadeDistOffset;
+		fragment.depthFadeScaleBias = depthFadeScaleBias;
+		fragments[fragmentIndex] = fragment;
+	}
+	else
+	{
+		uint garbage;
+		InterlockedAdd(counter[0].overflowCount, 1, garbage);
+		InterlockedAdd(counter[0].fragmentCount, -1, garbage);
+	}
+}
+
+#endif

code/renderer/shaders/crp/transp_resolve.hlsl

@@ -0,0 +1,216 @@
+/*
+===========================================================================
+Copyright (C) 2023 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// reads per-pixel fragment linked lists into arrays, sorts them and composites them
+
+
+#include "common.hlsli"
+#include "oit.h.hlsli"
+#include "../common/state_bits.h.hlsli"
+
+
+cbuffer RootConstants
+{
+	uint renderTargetTexture;
+	uint shaderIndexBuffer;
+	uint indexTexture;
+	uint fragmentBuffer;
+	uint centerPixel; // y: 16 - x: 16
+	uint depthTexture;
+	float proj22;
+	float proj32;
+	float2 scissorRectMin;
+	float2 scissorRectMax;
+};
+
+struct VOut
+{
+	float4 position : SV_Position;
+	float2 texCoords : TEXCOORD0;
+};
+
+
+#if VERTEX_SHADER
+
+VOut vs(uint id : SV_VertexID)
+{
+	VOut output;
+	output.position = FSTrianglePosFromVertexId(id);
+	output.texCoords = FSTriangleTCFromVertexId(id);
+
+	return output;
+}
+
+#endif
+
+
+#if PIXEL_SHADER
+
+uint GetShaderStage(uint stateBits)
+{
+	return (stateBits & GLS_STAGEINDEX_BITS) >> GLS_STAGEINDEX_SHIFT;
+}
+
+bool IsBehind(float depthA, float depthB, uint stageA, uint stageB)
+{
+	if(depthA > depthB)
+	{
+		return true;
+	}
+
+	if(depthA == depthB && stageA < stageB)
+	{
+		return true;
+	}
+
+	return false;
+}
+
+// from NVIDIA's 2007 "Soft Particles" whitepaper by Tristan Lorach
+float Contrast(float d, float power)
+{
+	bool aboveHalf = d > 0.5;
+	float base = saturate(2.0 * (aboveHalf ? (1.0 - d) : d));
+	float r = 0.5 * pow(base, power);
+
+	return aboveHalf ? (1.0 - r) : r;
+}
+
+float GetBitAsFloat(uint bits, uint bitIndex)
+{
+	return (bits & (1u << bitIndex)) ? 1.0 : 0.0;
+}
+
+float2 UnpackHalf2(uint data)
+{
+	return float2(f16tof32(data), f16tof32(data >> 16));
+}
+
+float4 DepthFadeFragmentColor(float4 color, OIT_Fragment fragment, float storedDepthZW)
+{
+	if(((fragment.depthFadeScaleBias >> 8) & 1) == 0)
+	{
+		return color;
+	}
+
+#define BIT(Index) GetBitAsFloat(fragment.depthFadeScaleBias, Index)
+	float4 dst = color;
+	float2 distOffset = UnpackHalf2(fragment.depthFadeDistOffset);
+	float4 fadeColorScale = float4(BIT(0), BIT(1), BIT(2), BIT(3));
+	float4 fadeColorBias = float4(BIT(4), BIT(5), BIT(6), BIT(7));
+	float zwDepth = storedDepthZW; // stored depth, z/w
+	float depthS = LinearDepth(zwDepth, proj22, proj32); // stored depth, linear
+	float depthP = fragment.depth - distOffset.y; // fragment depth, linear
+	float fadeScale = Contrast((depthS - depthP) * distOffset.x, 2.0);
+	dst = lerp(dst * fadeColorScale + fadeColorBias, dst, fadeScale);
+#undef BIT
+
+	return dst;
+}
+
+float4 ps(VOut input) : SV_Target
+{
+	Texture2D renderTarget = ResourceDescriptorHeap[renderTargetTexture];
+	int2 tc = int2(input.position.x, input.position.y);
+	float4 color = renderTarget.Load(int3(tc.x, tc.y, 0));
+	if(any(input.position.xy < scissorRectMin) ||
+		any(input.position.xy > scissorRectMax))
+	{
+		return color;
+	}
+
+	RWTexture2D<uint> index = ResourceDescriptorHeap[indexTexture];
+	RWStructuredBuffer<OIT_Fragment> fragments = ResourceDescriptorHeap[fragmentBuffer];
+	Texture2D depthTex = ResourceDescriptorHeap[depthTexture];
+	uint fragmentIndex = index[tc];
+	uint i;
+	OIT_Fragment sorted[OIT_MAX_FRAGMENTS_PER_PIXEL];
+	uint fragmentCount = 0;
+
+	// grab this pixel's fragments	
+	while(fragmentIndex != 0 && fragmentCount < OIT_MAX_FRAGMENTS_PER_PIXEL)
+	{
+		sorted[fragmentCount] = fragments[fragmentIndex];
+		fragmentIndex = sorted[fragmentCount].next;
+		++fragmentCount;
+	}
+
+	// sort the fragments using an insertion sort
+	for(i = 1; i < fragmentCount; ++i)
+	{
+		OIT_Fragment insert = sorted[i];
+		uint stage = GetShaderStage(insert.stateBits);
+		uint j = i;
+		while(j > 0 && IsBehind(insert.depth, sorted[j - 1].depth, stage, GetShaderStage(sorted[j - 1].stateBits)))
+		{
+			sorted[j] = sorted[j - 1];
+			--j;
+		}
+		sorted[j] = insert;
+	}
+
+	// blend the results
+	float storedDepthZW = depthTex.Load(int3(input.position.xy, 0)).x; // stored depth, z/w
+	float dstDepth = 1.0;
+	for(i = 0; i < fragmentCount; ++i)
+	{
+		OIT_Fragment frag = sorted[i];
+		uint stateBits = frag.stateBits;
+		float fragDepth = frag.depth;
+		if((stateBits & (GLS_DEPTHFUNC_EQUAL | GLS_DEPTHTEST_DISABLE)) == GLS_DEPTHFUNC_EQUAL &&
+			fragDepth != dstDepth)
+		{
+			continue;
+		}
+
+		float4 fragColor = UnpackColor(frag.color);
+		fragColor = DepthFadeFragmentColor(fragColor, frag, storedDepthZW);
+		color = Blend(fragColor, color, frag.stateBits);
+		if((stateBits & GLS_DEPTHMASK_TRUE) != 0u &&
+			fragDepth < dstDepth)
+		{
+			dstDepth = fragDepth;
+		}
+	}
+
+	// write out the fragment shader ID of the closest fragment of the center pixel
+	if(fragmentCount > 0)
+	{
+		uint lastFragmentIndex = fragmentCount - 1;
+		OIT_Fragment closest = sorted[lastFragmentIndex];
+		uint shaderTrace = closest.shaderTrace;
+		if(shaderTrace & 1)
+		{
+			uint2 fragmentCoords = uint2(input.position.xy);
+			uint2 centerCoords = uint2(centerPixel & 0xFFFF, centerPixel >> 16);
+			if(all(fragmentCoords == centerCoords))
+			{
+				RWByteAddressBuffer shaderIdBuf = ResourceDescriptorHeap[shaderIndexBuffer];
+				uint frameIndex = (shaderTrace >> 1) & 3;
+				uint shaderId = shaderTrace >> 3;
+				shaderIdBuf.Store(frameIndex * 4, shaderId);
+			}
+		}
+	}
+
+	return color;
+}
+
+#endif

code/renderer/shaders/crp/ui.hlsl

@@ -0,0 +1,73 @@
+/*
+===========================================================================
+Copyright (C) 2023 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// UI rendering
+
+
+struct VOut
+{
+	float4 position : SV_Position;
+	float2 texCoords : TEXCOORD0;
+	float4 color : COLOR0;
+};
+
+cbuffer RootConstants : register(b0)
+{
+	float2 scale;
+	uint textureIndex;
+	uint samplerIndex;
+};
+
+
+#if VERTEX_SHADER
+
+struct VIn
+{
+	float2 position : POSITION;
+	float2 texCoords : TEXCOORD0;
+	float4 color : COLOR0;
+};
+
+VOut vs(VIn input)
+{
+	const float2 position = input.position * scale;
+	VOut output;
+	output.position = float4(position.x - 1.0, 1.0 - position.y, 0.0, 1.0);
+	output.texCoords = input.texCoords;
+	output.color = input.color;
+
+	return output;
+}
+
+#endif
+
+
+#if PIXEL_SHADER
+
+float4 ps(VOut input) : SV_Target
+{
+	Texture2D texture0 = ResourceDescriptorHeap[textureIndex];
+	SamplerState sampler0 = SamplerDescriptorHeap[samplerIndex];
+	float4 result = input.color * texture0.Sample(sampler0, input.texCoords);
+
+	return result;
+}
+
+#endif

code/renderer/shaders/crp/world.h.hlsli

@@ -0,0 +1,30 @@
+/*
+===========================================================================
+Copyright (C) 2023 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// shared world rendering constants
+
+
+#pragma once
+
+
+#define ATEST_NONE    0
+#define ATEST_GT_0    1
+#define ATEST_LT_HALF 2
+#define ATEST_GE_HALF 3

code/renderer/shaders/crp/world.hlsli

@@ -0,0 +1,37 @@
+/*
+===========================================================================
+Copyright (C) 2023 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// shared world surface rendering functions
+
+
+#pragma once
+
+
+bool FailsAlphaTest(float alpha, uint alphaTest)
+{
+	if(alphaTest == ATEST_GT_0)
+		return alpha == 0.0;
+	else if(alphaTest == ATEST_LT_HALF)
+		return alpha >= 0.5;
+	else if(alphaTest == ATEST_GE_HALF)
+		return alpha < 0.5;
+	else // ATEST_NONE
+		return false;
+}

code/renderer/shaders/grp/mip_1.hlsl

@@ -21,6 +21,9 @@ along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
 // mip-map generation: gamma-space to linear-space transform
 
 
+#include "../common/mip_gen.hlsli"
+
+
 cbuffer RootConstants
 {
 	float gamma;
@@ -32,14 +35,5 @@ RWTexture2D<float4> dst : register(u0);
 [numthreads(8, 8, 1)]
 void cs(uint3 id : SV_DispatchThreadID)
 {
-	// @TODO: is this actually required?
+	MipGen_GammaToLinear(dst, src, id, gamma);
-	uint w, h;
-	dst.GetDimensions(w, h);
-	if(any(id.xy >= uint2(w, h)))
-	{
-		return;
-	}
-
-	float4 v = src[id.xy];
-	dst[id.xy] = float4(pow(v.xyz, gamma), v.a);
 }

code/renderer/shaders/grp/mip_2.hlsl

@@ -21,6 +21,9 @@ along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
 // mip-map generation: 8-tap 1D filter
 
 
+#include "../common/mip_gen.hlsli"
+
+
 cbuffer RootConstants
 {
 	float4 weights;
@@ -34,41 +37,10 @@ cbuffer RootConstants
 
 RWTexture2D<float4> mips[2] : register(u0);
 
-uint2 FixCoords(int2 c)
-{
-	if(clampMode > 0)
-	{
-		// clamp
-		return uint2(clamp(c, int2(0, 0), maxSize));
-	}
-
-	// repeat
-	return uint2(c & maxSize);
-}
-
 [numthreads(8, 8, 1)]
 void cs(uint3 id : SV_DispatchThreadID)
 {
 	RWTexture2D<float4> src = mips[srcMip];
 	RWTexture2D<float4> dst = mips[dstMip];
-
+	MipGen_DownSample(dst, src, id, maxSize, clampMode, scale, offset, weights);
-	// @TODO: is this actually required?
-	uint w, h;
-	dst.GetDimensions(w, h);
-	if(any(id.xy >= uint2(w, h)))
-	{
-		return;
-	}
-
-	int2 base = int2(id.xy) * scale;
-	float4 r = float4(0, 0, 0, 0);
-	r += src[FixCoords(base - offset * 3)] * weights.x;
-	r += src[FixCoords(base - offset * 2)] * weights.y;
-	r += src[FixCoords(base - offset * 1)] * weights.z;
-	r += src[base] * weights.w;
-	r += src[base + offset] * weights.w;
-	r += src[FixCoords(base + offset * 2)] * weights.z;
-	r += src[FixCoords(base + offset * 3)] * weights.y;
-	r += src[FixCoords(base + offset * 4)] * weights.x;
-	dst[id.xy] = r;
 }

code/renderer/shaders/grp/mip_3.hlsl

@@ -21,6 +21,9 @@ along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
 // mip-map generation: linear-space to gamma-space transform
 
 
+#include "../common/mip_gen.hlsli"
+
+
 cbuffer RootConstants
 {
 	float4 blendColor;
@@ -37,22 +40,5 @@ void cs(uint3 id : SV_DispatchThreadID)
 {
 	RWTexture2D<float4> src = mips[srcMip];
 	RWTexture2D<float4> dst = mips[dstMip];
-
+	MipGen_LinearToGamma(dst, src, id, blendColor, intensity, invGamma);
-	// @TODO: is this actually required?
-	uint w, h;
-	dst.GetDimensions(w, h);
-	if(any(id.xy >= uint2(w, h)))
-	{
-		return;
-	}
-
-	// yes, intensity *should* be done in light-linear space
-	// but we keep the old behavior for consistency...
-	float4 in0 = src[id.xy];
-	float3 in1 = 0.5 * (in0.rgb + blendColor.rgb);
-	float3 inV = lerp(in0.rgb, in1.rgb, blendColor.a);
-	float3 out0 = pow(max(inV, 0.0), invGamma);
-	float3 out1 = out0 * intensity;
-	float4 outV = saturate(float4(out1, in0.a));
-	dst[id.xy] = outV;
 }

code/renderer/shaders/grp/post_inverse_gamma.hlsl

@@ -65,7 +65,7 @@ float4 ps(VOut input) : SV_Target
 	float3 base = texture0.Sample(sampler0, input.texCoords).rgb;
 	float3 linearSpace = pow(base * invBrightness, gamma);
 
-	return float4(linearSpace, 1.0f);
+	return float4(linearSpace, 1.0);
 }
 
 #endif

code/renderer/shaders/grp/shared.hlsli

@@ -21,6 +21,11 @@ along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
 // helper functions used by multiple shader files
 
 
+#if !defined(DISABLE_PRAGMA_ONCE)
+#pragma once
+#endif
+
+
 float4 MakeGreyscale(float4 input, float amount)
 {
 	float grey = dot(input.rgb, float3(0.299, 0.587, 0.114));

code/renderer/shaders/grp/uber_shader.hlsl

@@ -165,6 +165,8 @@ VOut vs(VIn input)
 
 #if USE_INCLUDES
 #include "shared.hlsli"
+#include "../common/state_bits.h.hlsli"
+#include "../common/blend.hlsli"
 #endif
 
 cbuffer RootConstants
@@ -191,86 +193,6 @@ Texture2D textures2D[4096] : register(t0);
 SamplerState samplers[96] : register(s0);
 RWByteAddressBuffer shaderIndexBuffer : register(u0);
 
-#define GLS_SRCBLEND_ZERO						0x00000001
-#define GLS_SRCBLEND_ONE						0x00000002
-#define GLS_SRCBLEND_DST_COLOR					0x00000003
-#define GLS_SRCBLEND_ONE_MINUS_DST_COLOR		0x00000004
-#define GLS_SRCBLEND_SRC_ALPHA					0x00000005
-#define GLS_SRCBLEND_ONE_MINUS_SRC_ALPHA		0x00000006
-#define GLS_SRCBLEND_DST_ALPHA					0x00000007
-#define GLS_SRCBLEND_ONE_MINUS_DST_ALPHA		0x00000008
-#define GLS_SRCBLEND_ALPHA_SATURATE				0x00000009
-#define		GLS_SRCBLEND_BITS					0x0000000f
-
-#define GLS_DSTBLEND_ZERO						0x00000010
-#define GLS_DSTBLEND_ONE						0x00000020
-#define GLS_DSTBLEND_SRC_COLOR					0x00000030
-#define GLS_DSTBLEND_ONE_MINUS_SRC_COLOR		0x00000040
-#define GLS_DSTBLEND_SRC_ALPHA					0x00000050
-#define GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA		0x00000060
-#define GLS_DSTBLEND_DST_ALPHA					0x00000070
-#define GLS_DSTBLEND_ONE_MINUS_DST_ALPHA		0x00000080
-#define		GLS_DSTBLEND_BITS					0x000000f0
-
-#define GLS_ATEST_GT_0							0x10000000
-#define GLS_ATEST_LT_80							0x20000000
-#define GLS_ATEST_GE_80							0x40000000
-#define		GLS_ATEST_BITS						0x70000000
-
-float4 BlendSource(float4 src, float4 dst, uint stateBits)
-{
-	if(stateBits == GLS_SRCBLEND_ZERO)
-		return float4(0.0, 0.0, 0.0, 0.0);
-	else if(stateBits == GLS_SRCBLEND_ONE)
-		return src;
-	else if(stateBits == GLS_SRCBLEND_DST_COLOR)
-		return src * dst;
-	else if(stateBits == GLS_SRCBLEND_ONE_MINUS_DST_COLOR)
-		return src * (float4(1.0, 1.0, 1.0, 1.0) - dst);
-	else if(stateBits == GLS_SRCBLEND_SRC_ALPHA)
-		return src * float4(src.a, src.a, src.a, 1.0);
-	else if(stateBits == GLS_SRCBLEND_ONE_MINUS_SRC_ALPHA)
-		return src * float4(1.0 - src.a, 1.0 - src.a, 1.0 - src.a, 1.0);
-	else if(stateBits == GLS_SRCBLEND_DST_ALPHA)
-		return src * float4(dst.a, dst.a, dst.a, 1.0);
-	else if(stateBits == GLS_SRCBLEND_ONE_MINUS_DST_ALPHA)
-		return src * float4(1.0 - dst.a, 1.0 - dst.a, 1.0 - dst.a, 1.0);
-	else if(stateBits == GLS_SRCBLEND_ALPHA_SATURATE)
-		return src * float4(src.a, src.a, src.a, 1.0); // ?????????
-	else
-		return src;
-}
-
-float4 BlendDest(float4 src, float4 dst, uint stateBits)
-{
-	if(stateBits == GLS_DSTBLEND_ZERO)
-		return float4(0.0, 0.0, 0.0, 0.0);
-	else if(stateBits == GLS_DSTBLEND_ONE)
-		return dst;
-	else if(stateBits == GLS_DSTBLEND_SRC_COLOR)
-		return dst * src;
-	else if(stateBits == GLS_DSTBLEND_ONE_MINUS_SRC_COLOR)
-		return dst * float4(1.0 - src.r, 1.0 - src.g, 1.0 - src.b, 1.0 - src.a);
-	else if(stateBits == GLS_DSTBLEND_SRC_ALPHA)
-		return dst * float4(src.a, src.a, src.a, 1.0);
-	else if(stateBits == GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA)
-		return dst * float4(1.0 - src.a, 1.0 - src.a, 1.0 - src.a, 0.0);
-	else if(stateBits == GLS_DSTBLEND_DST_ALPHA)
-		return dst * float4(dst.a, dst.a, dst.a, 1.0);
-	else if(stateBits == GLS_DSTBLEND_ONE_MINUS_DST_ALPHA)
-		return dst * float4(1.0 - dst.a, 1.0 - dst.a, 1.0 - dst.a, 1.0);
-	else
-		return float4(0.0, 0.0, 0.0, 0.0);
-}
-
-float4 Blend(float4 src, float4 dst, uint stateBits)
-{
-	float4 srcOut = BlendSource(src, dst, stateBits & GLS_SRCBLEND_BITS);
-	float4 dstOut = BlendDest(src, dst, stateBits & GLS_DSTBLEND_BITS);
-
-	return srcOut + dstOut;
-}
-
 bool FailsAlphaTest(float alpha, uint stateBits)
 {
 	if(stateBits == GLS_ATEST_GT_0)

code/renderer/srp_imgui.cpp

@@ -1,6 +1,6 @@
 /*
 ===========================================================================
-Copyright (C) 2022-2023 Gian 'myT' Schellenbaum
+Copyright (C) 2022-2024 Gian 'myT' Schellenbaum
 
 This file is part of Challenge Quake 3 (CNQ3).
 
@@ -18,13 +18,11 @@ You should have received a copy of the GNU General Public License
 along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
 ===========================================================================
 */
-// Gameplay Rendering Pipeline - Dear ImGUI integration
+// Shared Rendering Pipeline - Dear ImGUI integration
 
 
-#include "grp_local.h"
+#include "srp_local.h"
 #include "../imgui/imgui.h"
-#include "hlsl/imgui_vs.h"
-#include "hlsl/imgui_ps.h"
 
 
 #define MAX_VERTEX_COUNT (64 << 10)
@@ -46,13 +44,16 @@ struct PixelRC
 #pragma pack(pop)
 
 
-void ImGUI::Init()
+HTexture ImGUI::Init(bool ddhi_, const ShaderByteCode& vs, const ShaderByteCode& ps, TextureFormat::Id rtFormat, HDescriptorTable descTable, RootSignatureDesc* rootSigDesc)
 {
+	ddhi = ddhi_;
+	descriptorTable = descTable;
+
 	ImGuiIO& io = ImGui::GetIO();
 	io.DisplaySize.x = glConfig.vidWidth;
 	io.DisplaySize.y = glConfig.vidHeight;
 
-	if(grp.firstInit)
+	if(srp.firstInit)
 	{
 		io.BackendRendererUserData = this;
 		io.BackendRendererName = "CNQ3 Direct3D 12";
@@ -71,8 +72,13 @@ void ImGUI::Init()
 			fr->vertexBuffer = CreateBuffer(idx);
 		}
 
+		if(ddhi)
 		{
-			RootSignatureDesc desc = grp.rootSignatureDesc;
+			rootSignature = RHI_MAKE_NULL_HANDLE();
+		}
+		else
+		{
+			RootSignatureDesc desc = *rootSigDesc;
 			desc.name = "Dear ImGUI";
 			desc.constants[ShaderStage::Vertex].byteCount = sizeof(VertexRC);
 			desc.constants[ShaderStage::Pixel].byteCount = sizeof(PixelRC);
@@ -100,8 +106,8 @@ void ImGUI::Init()
 	{
 		GraphicsPipelineDesc desc("Dear ImGUI", rootSignature);
 		desc.shortLifeTime = true;
-		desc.vertexShader = ShaderByteCode(g_vs);
+		desc.vertexShader = vs;
-		desc.pixelShader = ShaderByteCode(g_ps);
+		desc.pixelShader = ps;
 		desc.vertexLayout.bindingStrides[0] = sizeof(ImDrawVert);
 		desc.vertexLayout.AddAttribute(0, ShaderSemantic::Position,
 			DataType::Float32, 2, offsetof(ImDrawVert, pos));
@@ -114,36 +120,39 @@ void ImGUI::Init()
 		desc.depthStencil.enableDepthTest = false;
 		desc.depthStencil.enableDepthWrites = false;
 		desc.rasterizer.cullMode = CT_TWO_SIDED;
-		desc.AddRenderTarget(GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA, grp.renderTargetFormat);
+		desc.AddRenderTarget(GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA, rtFormat);
 		pipeline = CreateGraphicsPipeline(desc);
 	}
 
-	RegisterFontAtlas();
+	if(ddhi)
+	{
+		const uint32_t fontIndex = GetTextureIndexSRV(fontAtlas);
+		io.Fonts->SetTexID((ImTextureID)fontIndex);
+	}
+
+	return fontAtlas;
 }
 
-void ImGUI::RegisterFontAtlas()
+void ImGUI::RegisterFontAtlas(uint32_t fontIndex)
 {
-	ImGuiIO& io = ImGui::GetIO();
+	ImGui::GetIO().Fonts->SetTexID((ImTextureID)fontIndex);
-
-	const uint32_t fontIndex = grp.RegisterTexture(fontAtlas);
-	io.Fonts->SetTexID((ImTextureID)fontIndex);
 }
 
-void ImGUI::Draw()
+void ImGUI::Draw(HTexture renderTarget)
 {
 	if(r_debugUI->integer == 0)
 	{
-		SafeEndFrame();
+		EndFrame();
 		return;
 	}
 
-	grp.renderMode = RenderMode::ImGui;
+	srp.renderMode = RenderMode::ImGui;
 
 	ImGuiIO& io = ImGui::GetIO();
 	io.DisplaySize.x = glConfig.vidWidth;
 	io.DisplaySize.y = glConfig.vidHeight;
 
-	SafeEndFrame();
+	EndFrame();
 	ImGui::Render();
 
 	const ImDrawData* drawData = ImGui::GetDrawData();
@@ -151,7 +160,7 @@ void ImGUI::Draw()
 	// avoid rendering when minimized
 	if(drawData->DisplaySize.x <= 0.0f || drawData->DisplaySize.y <= 0.0f)
 	{
-		grp.renderMode = RenderMode::None;
+		srp.renderMode = RenderMode::None;
 		return;
 	}
 
@@ -201,14 +210,27 @@ void ImGUI::Draw()
 	const uint32_t vertexStride = sizeof(ImDrawVert);
 	static_assert(sizeof(ImDrawIdx) == 4, "uint32 indices expected!");
 
-	CmdBindRenderTargets(1, &grp.renderTarget, NULL);
+	CmdBindRenderTargets(1, &renderTarget, NULL);
-	CmdBindRootSignature(rootSignature);
+	if(!ddhi)
+	{
+		CmdBindRootSignature(rootSignature);
+	}
 	CmdBindPipeline(pipeline);
-	CmdBindDescriptorTable(rootSignature, grp.descriptorTable);
+	if(!ddhi)
+	{
+		CmdBindDescriptorTable(rootSignature, descriptorTable);
+	}
 	CmdBindVertexBuffers(1, &fr->vertexBuffer, &vertexStride, NULL);
 	CmdBindIndexBuffer(fr->indexBuffer, IndexType::UInt32, 0);
 	CmdSetViewport(0, 0, drawData->DisplaySize.x, drawData->DisplaySize.y);
-	CmdSetRootConstants(rootSignature, ShaderStage::Vertex, &vertexRC);
+	if(ddhi)
+	{
+		CmdSetGraphicsRootConstants(0, sizeof(vertexRC), &vertexRC);
+	}
+	else
+	{
+		CmdSetRootConstants(rootSignature, ShaderStage::Vertex, &vertexRC);
+	}
 
 	// Render command lists
 	// (Because we merged all buffers into a single one, we maintain our own offset into them)
@@ -234,7 +256,14 @@ void ImGUI::Draw()
 			pixelRC.texture = (uint32_t)cmd->TextureId & 0xFFFF;
 			pixelRC.sampler = GetSamplerIndex(TW_CLAMP_TO_EDGE, TextureFilter::Linear);
 			pixelRC.mip = (float)(((uint32_t)cmd->TextureId >> 16) & 0xFFFF);
-			CmdSetRootConstants(rootSignature, ShaderStage::Pixel, &pixelRC);
+			if(ddhi)
+			{
+				CmdSetGraphicsRootConstants(sizeof(vertexRC), sizeof(pixelRC), &pixelRC);
+			}
+			else
+			{
+				CmdSetRootConstants(rootSignature, ShaderStage::Pixel, &pixelRC);
+			}
 
 			// Apply Scissor/clipping rectangle, Draw
 			CmdSetScissor(clip_min.x, clip_min.y, clip_max.x - clip_min.x, clip_max.y - clip_min.y);
@@ -245,10 +274,10 @@ void ImGUI::Draw()
 		globalVtxOffset += cmdList->VtxBuffer.Size;
 	}
 
-	grp.renderMode = RenderMode::None;
+	srp.renderMode = RenderMode::None;
 }
 
-void ImGUI::SafeBeginFrame()
+void ImGUI::BeginFrame()
 {
 	if(!frameStarted)
 	{
@@ -257,7 +286,7 @@ void ImGUI::SafeBeginFrame()
 	}
 }
 
-void ImGUI::SafeEndFrame()
+void ImGUI::EndFrame()
 {
 	if(frameStarted)
 	{

code/renderer/srp_local.h

@@ -0,0 +1,435 @@
+/*
+===========================================================================
+Copyright (C) 2023-2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// Shared Rendering Pipeline - private declarations
+
+
+#pragma once
+
+
+#include "tr_local.h"
+#include "rhi_local.h"
+
+
+using namespace RHI;
+
+
+struct BufferBase
+{
+	bool CanAdd(uint32_t count_)
+	{
+		return batchFirst + batchCount + count_ <= totalCount;
+	}
+
+	void EndBatch()
+	{
+		batchFirst += batchCount;
+		batchCount = 0;
+	}
+
+	void EndBatch(uint32_t size)
+	{
+		batchFirst += size;
+		batchCount = 0;
+	}
+
+	void Rewind()
+	{
+		batchFirst = 0;
+		batchCount = 0;
+	}
+
+	uint32_t totalCount = 0;
+	uint32_t batchFirst = 0;
+	uint32_t batchCount = 0;
+};
+
+struct IndexBuffer : BufferBase
+{
+	void Create(const char* name, MemoryUsage::Id memoryUsage, uint32_t indexCount)
+	{
+		totalCount = indexCount;
+
+		BufferDesc desc = {};
+		desc.committedResource = true;
+		desc.initialState = ResourceStates::IndexBufferBit;
+		desc.memoryUsage = memoryUsage;
+		desc.name = va("%s index", name);
+		desc.byteCount = indexCount * sizeof(uint32_t);
+		buffer = CreateBuffer(desc);
+	}
+
+	void BeginUpload()
+	{
+		mapped = (uint32_t*)BeginBufferUpload(buffer);
+	}
+
+	void EndUpload()
+	{
+		EndBufferUpload(buffer);
+		mapped = NULL;
+	}
+
+	void Upload()
+	{
+		Q_assert(mapped != NULL);
+
+		uint32_t* const idx = mapped + batchFirst + batchCount;
+		memcpy(idx, &tess.indexes[0], tess.numIndexes * sizeof(uint32_t));
+	}
+
+	uint32_t* GetCurrentAddress()
+	{
+		return mapped + batchFirst + batchCount;
+	}
+
+	HBuffer buffer = RHI_MAKE_NULL_HANDLE();
+	uint32_t* mapped = NULL;
+};
+
+struct GeometryBuffer : BufferBase
+{
+	void Init(uint32_t count_, uint32_t stride_)
+	{
+		buffer = RHI_MAKE_NULL_HANDLE();
+		byteCount = count_ * stride_;
+		stride = stride_;
+		totalCount = count_;
+		batchFirst = 0;
+		batchCount = 0;
+	}
+
+	void CreateVertexBuffer(const char* name, MemoryUsage::Id memoryUsage, uint32_t count, uint32_t stride_)
+	{
+		BufferDesc desc = {};
+		desc.committedResource = true;
+		desc.initialState = ResourceStates::VertexBufferBit;
+		desc.memoryUsage = memoryUsage;
+		desc.name = name;
+		desc.byteCount = count * stride_;
+		buffer = CreateBuffer(desc);
+		byteCount = count * stride_;
+		stride = stride_;
+		totalCount = count;
+		batchFirst = 0;
+		batchCount = 0;
+	}
+
+	void BeginUpload()
+	{
+		Q_assert(mapped == NULL);
+		mapped = BeginBufferUpload(buffer);
+	}
+
+	void EndUpload()
+	{
+		Q_assert(mapped != NULL);
+		EndBufferUpload(buffer);
+		mapped = NULL;
+	}
+
+	HBuffer buffer = RHI_MAKE_NULL_HANDLE();
+	uint32_t byteCount = 0;
+	uint32_t stride = 0;
+	uint8_t* mapped = NULL;
+};
+
+struct RenderMode
+{
+	enum Id
+	{
+		None,
+		UI,
+		World,
+		ImGui,
+		Nuklear,
+		Count
+	};
+};
+
+struct RenderPassQueries
+{
+	char name[64];
+	uint32_t gpuDurationUS;
+	uint32_t cpuDurationUS;
+	int64_t cpuStartUS;
+	uint32_t queryIndex;
+};
+
+enum
+{
+	MaxRenderPasses = 64, // cg_draw3dIcons forces tons of 2D/3D transitions...
+	MaxStatsFrameCount = 64
+};
+
+struct RenderPassStats
+{
+	void EndFrame(uint32_t cpu, uint32_t gpu);
+
+	uint32_t samplesCPU[MaxStatsFrameCount];
+	uint32_t samplesGPU[MaxStatsFrameCount];
+	stats_t statsCPU;
+	stats_t statsGPU;
+	uint32_t count;
+	uint32_t index;
+};
+
+struct RenderPassFrame
+{
+	RenderPassQueries passes[MaxRenderPasses];
+	uint32_t count;
+};
+
+struct FrameStats
+{
+	enum { MaxFrames = 1024 };
+
+	void EndFrame();
+
+	float temp[MaxFrames];
+	float p2pMS[MaxFrames];
+	stats_t p2pStats;
+	int frameCount;
+	int frameIndex;
+	int skippedFrames;
+};
+
+struct MipMapGenerator
+{
+	void Init(bool ddhi, const ShaderByteCode& g2l, const ShaderByteCode& down, const ShaderByteCode& l2g);
+	void GenerateMipMaps(HTexture texture);
+
+private:
+	struct Stage
+	{
+		enum Id
+		{
+			Start,      // gamma to linear
+			DownSample, // down sample on 1 axis
+			End,        // linear to gamma
+			Count
+		};
+
+		HRootSignature rootSignature;
+		HDescriptorTable descriptorTable;
+		HPipeline pipeline;
+	};
+
+	struct MipSlice
+	{
+		enum Id
+		{
+			Float16_0,
+			Float16_1,
+			Count
+		};
+	};
+
+	HTexture textures[MipSlice::Count];
+	Stage stages[3];
+	bool ddhi = false;
+};
+
+struct UI
+{
+	void Init(bool ddhi_, const ShaderByteCode& vs, const ShaderByteCode& ps, TextureFormat::Id rtFormat,
+		HDescriptorTable descTable, RootSignatureDesc* rootSigDesc);
+	void BeginFrame();
+	void Begin(HTexture renderTarget);
+	void End();
+	void CmdSetColor(const uiSetColorCommand_t& cmd);
+	void CmdDrawQuad(const uiDrawQuadCommand_t& cmd);
+	void CmdDrawTriangle(const uiDrawTriangleCommand_t& cmd);
+
+private:
+	void DrawBatch();
+
+	// 32-bit needed until the render logic is fixed!
+	typedef uint32_t Index;
+	const IndexType::Id indexType = IndexType::UInt32;
+
+	uint32_t renderPassIndex;
+
+#pragma pack(push, 1)
+	struct Vertex
+	{
+		vec2_t position;
+		vec2_t texCoords;
+		uint32_t color;
+	};
+#pragma pack(pop)
+	int maxIndexCount;
+	int maxVertexCount;
+	int firstIndex;
+	int firstVertex;
+	int indexCount;
+	int vertexCount;
+	HRootSignature rootSignature;
+	HDescriptorTable descriptorTable;
+	HPipeline pipeline;
+	HBuffer indexBuffer;
+	HBuffer vertexBuffer;
+	Index* indices;
+	Vertex* vertices;
+	uint32_t color;
+	const shader_t* shader;
+	bool ddhi; // direct descriptor heap indexing
+};
+
+struct ImGUI
+{
+	HTexture Init(bool ddhi, const ShaderByteCode& vs, const ShaderByteCode& ps, TextureFormat::Id rtFormat, HDescriptorTable descTable, RootSignatureDesc* rootSigDesc);
+	void RegisterFontAtlas(uint32_t fontIndex);
+	void Draw(HTexture renderTarget);
+	void BeginFrame();
+	void EndFrame();
+
+private:
+	struct FrameResources
+	{
+		HBuffer indexBuffer;
+		HBuffer vertexBuffer;
+	};
+
+	HRootSignature rootSignature;
+	HDescriptorTable descriptorTable;
+	HPipeline pipeline;
+	HTexture fontAtlas;
+	FrameResources frameResources[FrameCount];
+	bool frameStarted = false;
+	bool ddhi = false;
+};
+
+struct Nuklear
+{
+	void Init(bool ddhi, const ShaderByteCode& vs, const ShaderByteCode& ps, TextureFormat::Id rtFormat, HDescriptorTable descTable, RootSignatureDesc* rootSigDesc);
+	void BeginFrame();
+	void Begin(HTexture renderTarget);
+	void End();
+	void Upload(const nuklearUploadCommand_t& cmd);
+	void Draw(const nuklearDrawCommand_t& cmd);
+
+private:
+	struct FrameResources
+	{
+		HBuffer indexBuffer;
+		HBuffer vertexBuffer;
+	};
+
+	HRootSignature rootSignature;
+	HDescriptorTable descriptorTable;
+	HPipeline pipeline;
+	FrameResources frameResources[FrameCount];
+	uint32_t renderPassIndex;
+	int prevScissorRect[4];
+
+	// reset every frame
+	int firstVertex;
+	int firstIndex;
+	int numVertexes; // set in Upload
+	int numIndexes; // set in Upload
+	bool ddhi = false;
+};
+
+struct SRP
+{
+	uint32_t BeginRenderPass(const char* name, float r, float g, float b);
+	void EndRenderPass(uint32_t index);
+
+	// @NOTE: SRP::BeginFrame doesn't call RHI::BeginFrame
+	// @NOTE: SRP::EndFrame calls RHI::EndFrame and Sys_V_EndFrame
+	void BeginFrame(); // call at the start of IRenderPipeline::BeginFrame
+	void EndFrame(); // call at the end of IRenderPipeline::EndFrame
+
+	void DrawGUI();
+
+	// call this in Init but only on srp.firstInit
+	// you need to register them in your own local descriptor table(s)
+	void CreateShaderTraceBuffers();
+
+	bool firstInit = true; // first RP init after a RHI init?
+	RenderMode::Id renderMode; // necessary for sampler selection, useful for debugging
+
+	// shader trace
+	HBuffer traceRenderBuffer;
+	HBuffer traceReadbackBuffer;
+
+	// data for frame breakdown and frame graph
+	RenderPassFrame renderPasses[FrameCount];
+	RenderPassFrame tempRenderPasses;
+	RenderPassStats renderPassStats[MaxRenderPasses];
+	RenderPassStats wholeFrameStats;
+	FrameStats frameStats;
+	bool enableRenderPassQueries = true;
+
+	// PSO stats
+	bool psoStatsValid = false;
+	int psoCount = 0;
+	int psoChangeCount = 0;
+};
+
+extern SRP srp;
+
+struct ScopedRenderPass
+{
+	ScopedRenderPass(const char* name, float r, float g, float b)
+	{
+		index = srp.BeginRenderPass(name, r, g, b);
+	}
+
+	~ScopedRenderPass()
+	{
+		srp.EndRenderPass(index);
+	}
+
+	uint32_t index;
+};
+
+#define SCOPED_RENDER_PASS(Name, R, G, B) ScopedRenderPass CONCAT(rp_, __LINE__)(Name, R, G, B)
+
+#define BASE_SAMPLER_COUNT ((int)(TW_COUNT * TextureFilter::Count * MaxTextureMips))
+
+const image_t* GetBundleImage(const textureBundle_t& bundle);
+uint32_t GetBaseSamplerIndex(textureWrap_t wrap, TextureFilter::Id filter, uint32_t minLOD);
+uint32_t GetSamplerIndex(textureWrap_t wrap, TextureFilter::Id filter, uint32_t minLOD = 0);
+uint32_t GetSamplerIndex(const image_t* image);
+void ReadTextureImage(void* outPixels, HTexture hreadback, int w, int h, int alignment, colorSpace_t colorSpace);
+void UpdateEntityData(bool& depthHack, int entityNum, double originalTime);
+cullType_t GetMirrorredCullType(cullType_t cullType);
+uint32_t AlphaTestShaderConstFromStateBits(unsigned int stateBits);
+
+inline void CmdSetViewportAndScissor(uint32_t x, uint32_t y, uint32_t w, uint32_t h)
+{
+	CmdSetViewport(x, y, w, h);
+	CmdSetScissor(x, y, w, h);
+}
+
+inline void CmdSetViewportAndScissor(const viewParms_t& vp)
+{
+	CmdSetViewportAndScissor(vp.viewportX, vp.viewportY, vp.viewportWidth, vp.viewportHeight);
+}
+
+inline bool IsDepthFadeEnabled(const shader_t& shader)
+{
+	return
+		r_depthFade->integer != 0 &&
+		shader.dfType > DFT_NONE &&
+		shader.dfType < DFT_TBD;
+}

code/renderer/srp_main.cpp

@@ -0,0 +1,539 @@
+/*
+===========================================================================
+Copyright (C) 2023-2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// Shared Rendering Pipeline - core functionality
+
+
+#include "srp_local.h"
+#include "../client/cl_imgui.h"
+#include "shaders/crp/world.h.hlsli"
+
+
+extern IRenderPipeline* grpp;
+extern IRenderPipeline* crpp;
+
+SRP srp;
+IRenderPipeline* renderPipeline;
+
+
+static ImPlotPoint FrameTimeGetter(int index, void*)
+{
+	const FrameStats& fs = srp.frameStats;
+	const int realIndex = (fs.frameIndex + index) % fs.frameCount;
+	const float value = fs.p2pMS[realIndex];
+
+	ImPlotPoint p;
+	p.x = index;
+	p.y = value;
+
+	return p;
+}
+
+static void UpdateAnimatedImage(image_t* image, int w, int h, const byte* data, qbool dirty)
+{
+	if(w != image->width || h != image->height)
+	{
+		// @TODO: ?
+		/*image->width = w;
+		image->height = h;
+		CreateTexture(&d3d.textures[image->texnum], image, 1, w, h);
+		GAL_UpdateTexture(image, 0, 0, 0, w, h, data);*/
+	}
+	else if(dirty)
+	{
+		// @TODO: ?
+		//GAL_UpdateTexture(image, 0, 0, 0, w, h, data);
+	}
+}
+
+
+const image_t* GetBundleImage(const textureBundle_t& bundle)
+{
+	return R_UpdateAndGetBundleImage(&bundle, &UpdateAnimatedImage);
+}
+
+uint32_t GetBaseSamplerIndex(textureWrap_t wrap, TextureFilter::Id filter, uint32_t minLOD)
+{
+	Q_assert((uint32_t)wrap < TW_COUNT);
+	Q_assert((uint32_t)filter < TextureFilter::Count);
+
+	const uint32_t baseIndex =
+		(uint32_t)filter +
+		(uint32_t)TextureFilter::Count * (uint32_t)wrap +
+		(uint32_t)TextureFilter::Count * (uint32_t)TW_COUNT * minLOD;
+
+	return baseIndex;
+}
+
+uint32_t GetSamplerIndex(textureWrap_t wrap, TextureFilter::Id filter, uint32_t minLOD)
+{
+	const uint32_t baseIndex = GetBaseSamplerIndex(wrap, filter, minLOD);
+	const uint32_t descIndex = renderPipeline->GetSamplerDescriptorIndexFromBaseIndex(baseIndex);
+
+	return descIndex;
+}
+
+uint32_t GetSamplerIndex(const image_t* image)
+{
+	TextureFilter::Id filter = TextureFilter::Anisotropic;
+	if(r_lego->integer &&
+		srp.renderMode == RenderMode::World &&
+		(image->flags & (IMG_LMATLAS | IMG_EXTLMATLAS | IMG_NOPICMIP)) == 0)
+	{
+		filter = TextureFilter::Point;
+	}
+	else if((image->flags & IMG_NOAF) != 0 ||
+		srp.renderMode != RenderMode::World)
+	{
+		filter = TextureFilter::Linear;
+	}
+
+	int minLOD = 0;
+	if(srp.renderMode == RenderMode::World &&
+		(image->flags & IMG_NOPICMIP) == 0)
+	{
+		minLOD = Com_ClampInt(0, MaxTextureMips - 1, r_picmip->integer);
+	}
+
+	return GetSamplerIndex(image->wrapClampMode, filter, (uint32_t)minLOD);
+}
+
+void ReadTextureImage(void* outPixels, HTexture hreadback, int w, int h, int alignment, colorSpace_t colorSpace)
+{
+	MappedTexture mapped;
+	BeginTextureReadback(mapped, hreadback);
+
+	byte* const out0 = (byte*)outPixels;
+	const byte* const in0 = mapped.mappedData;
+
+	if(colorSpace == CS_RGBA)
+	{
+		const int dstRowSizeNoPadding = w * 4;
+		mapped.dstRowByteCount = AlignUp(dstRowSizeNoPadding, alignment);
+
+		for(int y = 0; y < mapped.rowCount; ++y)
+		{
+			byte* out = out0 + (mapped.rowCount - 1 - y) * mapped.dstRowByteCount;
+			const byte* in = in0 + y * mapped.srcRowByteCount;
+			memcpy(out, in, dstRowSizeNoPadding);
+		}
+	}
+	else if(colorSpace == CS_BGR)
+	{
+		mapped.dstRowByteCount = AlignUp(w * 3, alignment);
+
+		for(int y = 0; y < mapped.rowCount; ++y)
+		{
+			byte* out = out0 + (mapped.rowCount - 1 - y) * mapped.dstRowByteCount;
+			const byte* in = in0 + y * mapped.srcRowByteCount;
+			for(int x = 0; x < mapped.columnCount; ++x)
+			{
+				out[2] = in[0];
+				out[1] = in[1];
+				out[0] = in[2];
+				out += 3;
+				in += 4;
+			}
+		}
+	}
+	else
+	{
+		Q_assert(!"Unsupported color space");
+	}
+
+	EndTextureReadback();
+}
+
+void UpdateEntityData(bool& depthHack, int entityNum, double originalTime)
+{
+	depthHack = false;
+
+	if(entityNum != ENTITYNUM_WORLD)
+	{
+		backEnd.currentEntity = &backEnd.refdef.entities[entityNum];
+		if(backEnd.currentEntity->intShaderTime)
+		{
+			backEnd.refdef.floatTime = originalTime - (double)backEnd.currentEntity->e.shaderTime.iShaderTime / 1000.0;
+		}
+		else
+		{
+			backEnd.refdef.floatTime = originalTime - backEnd.currentEntity->e.shaderTime.fShaderTime;
+		}
+		// we have to reset the shaderTime as well otherwise image animations start
+		// from the wrong frame
+		tess.shaderTime = backEnd.refdef.floatTime - tess.shader->timeOffset;
+
+		// set up the transformation matrix
+		R_RotateForEntity(backEnd.currentEntity, &backEnd.viewParms, &backEnd.orient);
+
+		if(backEnd.currentEntity->e.renderfx & RF_DEPTHHACK)
+		{
+			depthHack = true;
+		}
+	}
+	else
+	{
+		backEnd.currentEntity = &tr.worldEntity;
+		backEnd.refdef.floatTime = originalTime;
+		backEnd.orient = backEnd.viewParms.world;
+		// we have to reset the shaderTime as well otherwise image animations on
+		// the world (like water) continue with the wrong frame
+		tess.shaderTime = backEnd.refdef.floatTime - tess.shader->timeOffset;
+	}
+}
+
+cullType_t GetMirrorredCullType(cullType_t cullType)
+{
+	switch(cullType)
+	{
+		case CT_BACK_SIDED: return CT_FRONT_SIDED;
+		case CT_FRONT_SIDED: return CT_BACK_SIDED;
+		default: return CT_TWO_SIDED;
+	}
+}
+
+uint32_t AlphaTestShaderConstFromStateBits(unsigned int stateBits)
+{
+	stateBits &= GLS_ATEST_BITS;
+	switch(stateBits)
+	{
+		case GLS_ATEST_GE_80: return ATEST_GE_HALF;
+		case GLS_ATEST_GT_0: return ATEST_GT_0;
+		case GLS_ATEST_LT_80: return ATEST_LT_HALF;
+		default: return ATEST_NONE;
+	}
+}
+
+void R_SelectRenderPipeline()
+{
+	if(r_pipeline->integer == 0)
+	{
+		renderPipeline = grpp;
+	}
+	else
+	{
+		renderPipeline = crpp;
+	}
+}
+
+
+void FrameStats::EndFrame()
+{
+	frameCount = min(frameCount + 1, (int)MaxFrames);
+	frameIndex = (frameIndex + 1) % MaxFrames;
+	Com_StatsFromArray(p2pMS, frameCount, temp, &p2pStats);
+}
+
+
+void RenderPassStats::EndFrame(uint32_t cpu, uint32_t gpu)
+{
+	static uint32_t tempSamples[MaxStatsFrameCount];
+	samplesCPU[index] = cpu;
+	samplesGPU[index] = gpu;
+	count = min(count + 1, (uint32_t)MaxStatsFrameCount);
+	index = (index + 1) % MaxStatsFrameCount;
+	Com_StatsFromArray((const int*)samplesCPU, count, (int*)tempSamples, &statsCPU);
+	Com_StatsFromArray((const int*)samplesGPU, count, (int*)tempSamples, &statsGPU);
+}
+
+
+uint32_t SRP::BeginRenderPass(const char* name, float r, float g, float b)
+{
+	if(!enableRenderPassQueries)
+	{
+		CmdBeginDebugLabel(name, r, g, b);
+		return 0xDEADBEEF;
+	}
+
+	RenderPassFrame& f = renderPasses[tr.frameCount % FrameCount];
+	if(f.count >= ARRAY_LEN(f.passes))
+	{
+		Q_assert(0);
+		return UINT32_MAX;
+	}
+
+	CmdBeginDebugLabel(name, r, g, b);
+
+	const uint32_t index = f.count++;
+	RenderPassQueries& q = f.passes[index];
+	Q_strncpyz(q.name, name, sizeof(q.name));
+	q.cpuStartUS = Sys_Microseconds();
+	q.queryIndex = CmdBeginDurationQuery();
+
+	return index;
+}
+
+void SRP::EndRenderPass(uint32_t index)
+{
+	if(!enableRenderPassQueries)
+	{
+		CmdEndDebugLabel();
+		return;
+	}
+
+	Q_assert(index != 0xDEADBEEF); // enableRenderPassQueries should still be false!
+	RenderPassFrame& f = renderPasses[tr.frameCount % FrameCount];
+	if(index >= f.count)
+	{
+		Q_assert(0);
+		return;
+	}
+
+	CmdEndDebugLabel();
+
+	RenderPassQueries& q = f.passes[index];
+	q.cpuDurationUS = (uint32_t)(Sys_Microseconds() - q.cpuStartUS);
+	CmdEndDurationQuery(q.queryIndex);
+}
+
+void SRP::DrawGUI()
+{
+	uint32_t durations[MaxDurationQueries];
+	GetDurations(durations);
+
+	wholeFrameStats.EndFrame(rhie.renderToPresentUS, durations[0]);
+
+	const RenderPassFrame& currFrame = renderPasses[(tr.frameCount % FrameCount) ^ 1];
+	RenderPassFrame& tempFrame = tempRenderPasses;
+
+	// see if the render pass list is the same as the previous frame's
+	bool sameRenderPass = true;
+	if(currFrame.count == tempRenderPasses.count)
+	{
+		for(uint32_t p = 0; p < currFrame.count; ++p)
+		{
+			if(Q_stricmp(currFrame.passes[p].name, tempRenderPasses.passes[p].name) != 0)
+			{
+				sameRenderPass = false;
+				break;
+			}
+		}
+	}
+	else
+	{
+		sameRenderPass = false;
+	}
+
+	// write out the displayed timings into the temp buffer
+	tempFrame.count = currFrame.count;
+	if(sameRenderPass)
+	{
+		for(uint32_t p = 0; p < currFrame.count; ++p)
+		{
+			const uint32_t index = currFrame.passes[p].queryIndex;
+			if(index < MaxDurationQueries)
+			{
+				renderPassStats[p].EndFrame(currFrame.passes[p].cpuDurationUS, durations[index]);
+				tempFrame.passes[p].gpuDurationUS = renderPassStats[p].statsGPU.median;
+				tempFrame.passes[p].cpuDurationUS = renderPassStats[p].statsCPU.median;
+			}
+		}
+	}
+	else
+	{
+		for(uint32_t p = 0; p < currFrame.count; ++p)
+		{
+			const uint32_t index = currFrame.passes[p].queryIndex;
+			if(index < MaxDurationQueries)
+			{
+				tempFrame.passes[p].gpuDurationUS = durations[index];
+				tempFrame.passes[p].cpuDurationUS = currFrame.passes[p].cpuDurationUS;
+			}
+		}
+	}
+
+	static bool breakdownActive = false;
+	ToggleBooleanWithShortcut(breakdownActive, ImGuiKey_F);
+	GUI_AddMainMenuItem(GUI_MainMenu::Perf, "Frame breakdown", "Ctrl+F", &breakdownActive);
+	if(breakdownActive)
+	{
+		if(ImGui::Begin("Frame breakdown", &breakdownActive, ImGuiWindowFlags_AlwaysAutoResize))
+		{
+			if(BeginTable("Frame breakdown", 3))
+			{
+				TableHeader(3, "Pass", "GPU [us]", "CPU [us]");
+
+				TableRow(3, "Whole frame",
+					va("%d", (int)wholeFrameStats.statsGPU.median),
+					va("%d", (int)wholeFrameStats.statsCPU.median));
+
+				for(uint32_t p = 0; p < currFrame.count; ++p)
+				{
+					const RenderPassQueries& rp = tempFrame.passes[p];
+					if(rp.queryIndex < MaxDurationQueries)
+					{
+						TableRow(3, rp.name,
+							va("%d", (int)rp.gpuDurationUS),
+							va("%d", (int)rp.cpuDurationUS));
+					}
+				}
+
+				ImGui::EndTable();
+			}
+
+			if(psoStatsValid)
+			{
+				ImGui::Text("PSO count: %d", (int)psoCount);
+				ImGui::Text("PSO changes: %d", (int)psoChangeCount);
+			}
+		}
+		ImGui::End();
+	}
+
+	// save the current render pass list in the temp buffer
+	memcpy(&tempFrame, &currFrame, sizeof(tempFrame));
+
+	static bool frameTimeActive = false;
+	GUI_AddMainMenuItem(GUI_MainMenu::Perf, "Frame stats", NULL, &frameTimeActive);
+	if(frameTimeActive)
+	{
+		if(ImGui::Begin("Frame stats", &frameTimeActive, ImGuiWindowFlags_AlwaysAutoResize))
+		{
+			if(BeginTable("Frame stats", 2))
+			{
+				const FrameStats& fs = frameStats;
+				const stats_t& s = fs.p2pStats;
+				TableRow2("Skipped frames", fs.skippedFrames);
+				TableRow2("Frame time target", rhie.targetFrameDurationMS);
+				TableRow2("Frame time average", s.average);
+				TableRow2("Frame time std dev.", s.stdDev);
+				TableRow2("Input to render", (float)rhie.inputToRenderUS / 1000.0f);
+				TableRow2("Input to present", (float)rhie.inputToPresentUS / 1000.0f);
+
+				ImGui::EndTable();
+			}
+		}
+		ImGui::End();
+	}
+
+	static bool graphsActive = false;
+	ToggleBooleanWithShortcut(graphsActive, ImGuiKey_G);
+	GUI_AddMainMenuItem(GUI_MainMenu::Perf, "Frame time graphs", "Ctrl+G", &graphsActive);
+	if(graphsActive)
+	{
+		const int windowFlags =
+			ImGuiWindowFlags_NoDecoration |
+			ImGuiWindowFlags_NoBackground |
+			ImGuiWindowFlags_NoMove;
+		ImGui::SetNextWindowSize(ImVec2(glConfig.vidWidth, glConfig.vidHeight / 2), ImGuiCond_Always);
+		ImGui::SetNextWindowPos(ImVec2(0, glConfig.vidHeight / 2), ImGuiCond_Always);
+		if(ImGui::Begin("Frame time graphs", &graphsActive, windowFlags))
+		{
+			const FrameStats& fs = frameStats;
+			const double target = (double)rhie.targetFrameDurationMS;
+
+			static bool autoFit = false;
+			ImGui::Checkbox("Auto-fit", &autoFit);
+
+			if(ImPlot::BeginPlot("Frame Times", ImVec2(-1, -1), ImPlotFlags_NoInputs))
+			{
+				const int axisFlags = 0; // ImPlotAxisFlags_NoTickLabels
+				const int axisFlagsY = axisFlags | (autoFit ? ImPlotAxisFlags_AutoFit : 0);
+				ImPlot::SetupAxes(NULL, NULL, axisFlags, axisFlagsY);
+				ImPlot::SetupAxisLimits(ImAxis_X1, 0, FrameStats::MaxFrames, ImGuiCond_Always);
+				if(!autoFit)
+				{
+					ImPlot::SetupAxisLimits(ImAxis_Y1, max(target - 2.0, 0.0), target + 2.0, ImGuiCond_Always);
+				}
+
+				ImPlot::SetNextFillStyle(IMPLOT_AUTO_COL, 1.0f);
+				ImPlot::SetNextLineStyle(IMPLOT_AUTO_COL, 1.0f);
+				ImPlot::PlotInfLines("Target", &target, 1, ImPlotInfLinesFlags_Horizontal);
+
+				ImPlot::SetNextFillStyle(IMPLOT_AUTO_COL, 1.0f);
+				ImPlot::SetNextLineStyle(IMPLOT_AUTO_COL, 1.0f);
+				ImPlot::PlotLineG("Frame Time", &FrameTimeGetter, NULL, fs.frameCount, ImPlotLineFlags_None);
+
+				ImPlot::EndPlot();
+			}
+		}
+		ImGui::End();
+	}
+
+	GUI_DrawMainMenu();
+	R_DrawGUI();
+}
+
+void SRP::BeginFrame()
+{
+	srp.renderPasses[tr.frameCount % FrameCount].count = 0;
+	R_SetColorMappings();
+
+	// nothing is bound to the command list yet!
+	srp.renderMode = RenderMode::None;
+}
+
+void SRP::EndFrame()
+{
+	tr.tracedWorldShaderIndex = -1;
+	if(tr.traceWorldShader && tr.world != NULL)
+	{
+		// schedule a GPU -> CPU transfer
+		{
+			BufferBarrier barrier(traceRenderBuffer, ResourceStates::CopySourceBit);
+			CmdBarrier(0, NULL, 1, &barrier);
+		}
+		CmdCopyBuffer(traceReadbackBuffer, traceRenderBuffer);
+		{
+			BufferBarrier barrier(traceRenderBuffer, ResourceStates::UnorderedAccessBit);
+			CmdBarrier(0, NULL, 1, &barrier);
+		}
+
+		// grab last frame's result
+		uint32_t* shaderIndices = (uint32_t*)MapBuffer(traceReadbackBuffer);
+		const uint32_t shaderIndex = shaderIndices[RHI::GetFrameIndex() ^ 1];
+		UnmapBuffer(traceReadbackBuffer);
+		if(shaderIndex < (uint32_t)tr.numShaders)
+		{
+			tr.tracedWorldShaderIndex = (int)shaderIndex;
+		}
+	}
+
+	RHI::EndFrame();
+
+	if(rhie.presentToPresentUS > 0)
+	{
+		frameStats.p2pMS[frameStats.frameIndex] = (float)rhie.presentToPresentUS / 1000.0f;
+		frameStats.EndFrame();
+	}
+	else
+	{
+		frameStats.skippedFrames++;
+	}
+
+	if(backEnd.renderFrame)
+	{
+		Sys_V_EndFrame();
+	}
+}
+
+void SRP::CreateShaderTraceBuffers()
+{
+	{
+		BufferDesc desc("shader trace opaque", 2 * sizeof(uint32_t), ResourceStates::UnorderedAccessBit);
+		traceRenderBuffer = CreateBuffer(desc);
+	}
+
+	{
+		BufferDesc desc("shader trace opaque readback", 2 * sizeof(uint32_t), ResourceStates::Common);
+		desc.memoryUsage = MemoryUsage::Readback;
+		traceReadbackBuffer = CreateBuffer(desc);
+	}
+}

code/renderer/srp_mip_gen.cpp

@@ -1,6 +1,6 @@
 /*
 ===========================================================================
-Copyright (C) 2023 Gian 'myT' Schellenbaum
+Copyright (C) 2023-2024 Gian 'myT' Schellenbaum
 
 This file is part of Challenge Quake 3 (CNQ3).
 
@@ -18,26 +18,10 @@ You should have received a copy of the GNU General Public License
 along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
 ===========================================================================
 */
-// Gameplay Rendering Pipeline - texture mip-map generation
+// Shared Rendering Pipeline - texture mip-map generation
 
 
-// @TODO: test for OOB accesses in the shaders and return
+#include "srp_local.h"
-// (also, is it needed with feature level 12.0 and HLSL 5.1/6.0 ?)
-
-
-#include "grp_local.h"
-namespace start
-{
-#include "hlsl/mip_1_cs.h"
-}
-namespace down
-{
-#include "hlsl/mip_2_cs.h"
-}
-namespace end
-{
-#include "hlsl/mip_3_cs.h"
-}
 
 
 #pragma pack(push, 4)
@@ -45,6 +29,8 @@ namespace end
 struct StartConstants
 {
 	float gamma;
+	uint32_t srcTexture;
+	uint32_t dstTexture;
 };
 
 struct DownConstants
@@ -56,6 +42,8 @@ struct DownConstants
 	uint32_t clampMode; // 0 = repeat
 	uint32_t srcMip;
 	uint32_t dstMip;
+	uint32_t srcTexture;
+	uint32_t dstTexture;
 };
 
 struct EndConstants
@@ -65,18 +53,22 @@ struct EndConstants
 	float invGamma; // 1.0 / gamma
 	uint32_t srcMip;
 	uint32_t dstMip;
+	uint32_t srcTexture;
+	uint32_t dstTexture;
 };
 
 #pragma pack(pop)
 
 
-void MipMapGenerator::Init()
+void MipMapGenerator::Init(bool ddhi_, const ShaderByteCode& g2l, const ShaderByteCode& down, const ShaderByteCode& l2g)
 {
-	if(!grp.firstInit)
+	if(!srp.firstInit)
 	{
 		return;
 	}
 
+	ddhi = ddhi_;
+
 	for(int t = 0; t < 2; ++t)
 	{
 		TextureDesc desc(va("mip-map generation #%d", t + 1), MAX_TEXTURE_SIZE, MAX_TEXTURE_SIZE);
@@ -88,26 +80,33 @@ void MipMapGenerator::Init()
 
 	const char* const stageNames[] = { "start", "down", "end" };
 	const uint32_t stageRCByteCount[] = { sizeof(StartConstants), sizeof(DownConstants), sizeof(EndConstants) };
-	const ShaderByteCode stageShaders[] = { ShaderByteCode(start::g_cs), ShaderByteCode(down::g_cs), ShaderByteCode(end::g_cs) };
 	const uint32_t stageExtraMips[] = { 1, 0, MaxTextureMips };
+	const ShaderByteCode stageShaders[] = { g2l, down, l2g };
 
 	for(int s = 0; s < 3; ++s)
 	{
 		Stage& stage = stages[s];
+		if(ddhi)
 		{
-			RootSignatureDesc desc(va("mip-map %s", stageNames[s]));
+			stage.rootSignature = RHI_MAKE_NULL_HANDLE();
-			desc.pipelineType = PipelineType::Compute;
-			desc.constants[ShaderStage::Compute].byteCount = stageRCByteCount[s];
-			desc.AddRange(DescriptorType::RWTexture, 0, MipSlice::Count + stageExtraMips[s]);
-			stage.rootSignature = CreateRootSignature(desc);
 		}
+		else
 		{
-			const DescriptorTableDesc desc(DescriptorTableDesc(va("mip-map %s", stageNames[s]), stage.rootSignature));
+			{
-			stage.descriptorTable = CreateDescriptorTable(desc);
+				RootSignatureDesc desc(va("mip-map %s", stageNames[s]));
+				desc.pipelineType = PipelineType::Compute;
+				desc.constants[ShaderStage::Compute].byteCount = stageRCByteCount[s];
+				desc.AddRange(DescriptorType::RWTexture, 0, MipSlice::Count + stageExtraMips[s]);
+				stage.rootSignature = CreateRootSignature(desc);
+			}
+			{
+				const DescriptorTableDesc desc(DescriptorTableDesc(va("mip-map %s", stageNames[s]), stage.rootSignature));
+				stage.descriptorTable = CreateDescriptorTable(desc);
 
-			DescriptorTableUpdate update;
+				DescriptorTableUpdate update;
-			update.SetRWTexturesSlice(ARRAY_LEN(textures), textures, 0, 0);
+				update.SetRWTexturesSlice(ARRAY_LEN(textures), textures, 0, 0);
-			UpdateDescriptorTable(stage.descriptorTable, update);
+				UpdateDescriptorTable(stage.descriptorTable, update);
+			}
 		}
 		{
 			ComputePipelineDesc desc(va("mip-map %s", stageNames[s]), stage.rootSignature);
@@ -119,7 +118,7 @@ void MipMapGenerator::Init()
 
 void MipMapGenerator::GenerateMipMaps(HTexture texture)
 {
-	// @FIXME:
+	// @TODO: better look-up
 	image_t* image = NULL;
 	for(int i = 0; i < tr.numImages; ++i)
 	{
@@ -153,19 +152,22 @@ void MipMapGenerator::GenerateMipMaps(HTexture texture)
 		CmdBarrier(ARRAY_LEN(allBarriers), allBarriers);
 	}
 
-	// this must happen after the BeginTempCommandList call because
+	if(!ddhi)
-	// it has a CPU wait that guarantees it's safe to update the descriptor tables
 	{
-		Stage& stage = stages[Stage::Start];
+		// this must happen after the BeginTempCommandList call because
-		DescriptorTableUpdate update;
+		// it has a CPU wait that guarantees it's safe to update the descriptor tables
-		update.SetRWTexturesSlice(1, &texture, MipSlice::Count, 0);
+		{
-		UpdateDescriptorTable(stage.descriptorTable, update);
+			Stage& stage = stages[Stage::Start];
-	}
+			DescriptorTableUpdate update;
-	{
+			update.SetRWTexturesSlice(1, &texture, MipSlice::Count, 0);
-		Stage& stage = stages[Stage::End];
+			UpdateDescriptorTable(stage.descriptorTable, update);
-		DescriptorTableUpdate update;
+		}
-		update.SetRWTexturesChain(1, &texture, MipSlice::Count);
+		{
-		UpdateDescriptorTable(stage.descriptorTable, update);
+			Stage& stage = stages[Stage::End];
+			DescriptorTableUpdate update;
+			update.SetRWTexturesChain(1, &texture, MipSlice::Count);
+			UpdateDescriptorTable(stage.descriptorTable, update);
+		}
 	}
 
 	int w = image->width;
@@ -180,10 +182,22 @@ void MipMapGenerator::GenerateMipMaps(HTexture texture)
 		StartConstants rc = {};
 		rc.gamma = r_mipGenGamma->value;
 
-		CmdBindRootSignature(stage.rootSignature);
+		if(!ddhi)
+		{
+			CmdBindRootSignature(stage.rootSignature);
+		}
 		CmdBindPipeline(stage.pipeline);
-		CmdBindDescriptorTable(stage.rootSignature, stage.descriptorTable);
+		if(ddhi)
-		CmdSetRootConstants(stage.rootSignature, ShaderStage::Compute, &rc);
+		{
+			rc.srcTexture = GetTextureIndexUAV(texture, 0);
+			rc.dstTexture = GetTextureIndexUAV(textures[MipSlice::Float16_0], 0);
+			CmdSetComputeRootConstants(0, sizeof(rc), &rc);
+		}
+		else
+		{
+			CmdBindDescriptorTable(stage.rootSignature, stage.descriptorTable);
+			CmdSetRootConstants(stage.rootSignature, ShaderStage::Compute, &rc);
+		}
 		Dispatch(w, h);
 	}
 
@@ -207,10 +221,22 @@ void MipMapGenerator::GenerateMipMaps(HTexture texture)
 		rc.srcMip = MipSlice::Float16_0;
 		rc.dstMip = MipSlice::Count + destMip;
 
-		CmdBindRootSignature(stage.rootSignature);
+		if(!ddhi)
+		{
+			CmdBindRootSignature(stage.rootSignature);
+		}
 		CmdBindPipeline(stage.pipeline);
-		CmdBindDescriptorTable(stage.rootSignature, stage.descriptorTable);
+		if(ddhi)
-		CmdSetRootConstants(stage.rootSignature, ShaderStage::Compute, &rc);
+		{
+			rc.srcTexture = GetTextureIndexUAV(textures[MipSlice::Float16_0], 0);
+			rc.dstTexture = GetTextureIndexUAV(texture, destMip);
+			CmdSetComputeRootConstants(0, sizeof(rc), &rc);
+		}
+		else
+		{
+			CmdBindDescriptorTable(stage.rootSignature, stage.descriptorTable);
+			CmdSetRootConstants(stage.rootSignature, ShaderStage::Compute, &rc);
+		}
 		CmdBarrier(ARRAY_LEN(tempBarriers), tempBarriers);
 		Dispatch(w, h);
 	}
@@ -229,9 +255,15 @@ void MipMapGenerator::GenerateMipMaps(HTexture texture)
 			rc.clampMode = image->wrapClampMode == TW_REPEAT ? 0 : 1;
 			memcpy(rc.weights, tr.mipFilter, sizeof(rc.weights));
 
-			CmdBindRootSignature(stage.rootSignature);
+			if(!ddhi)
+			{
+				CmdBindRootSignature(stage.rootSignature);
+			}
 			CmdBindPipeline(stage.pipeline);
-			CmdBindDescriptorTable(stage.rootSignature, stage.descriptorTable);
+			if(!ddhi)
+			{
+				CmdBindDescriptorTable(stage.rootSignature, stage.descriptorTable);
+			}
 
 			// down-sample on the X-axis
 			rc.srcMip = MipSlice::Float16_0;
@@ -242,7 +274,16 @@ void MipMapGenerator::GenerateMipMaps(HTexture texture)
 			rc.maxSize[1] = hs - 1;
 			rc.offset[0] = 1;
 			rc.offset[1] = 0;
-			CmdSetRootConstants(stage.rootSignature, ShaderStage::Compute, &rc);
+			if(ddhi)
+			{
+				rc.srcTexture = GetTextureIndexUAV(textures[MipSlice::Float16_0], 0);
+				rc.dstTexture = GetTextureIndexUAV(textures[MipSlice::Float16_1], 0);
+				CmdSetComputeRootConstants(0, sizeof(rc), &rc);
+			}
+			else
+			{
+				CmdSetRootConstants(stage.rootSignature, ShaderStage::Compute, &rc);
+			}
 			CmdBarrier(ARRAY_LEN(tempBarriers), tempBarriers);
 			Dispatch(w, hs);
 
@@ -255,7 +296,16 @@ void MipMapGenerator::GenerateMipMaps(HTexture texture)
 			rc.maxSize[1] = hs - 1;
 			rc.offset[0] = 0;
 			rc.offset[1] = 1;
-			CmdSetRootConstants(stage.rootSignature, ShaderStage::Compute, &rc);
+			if(ddhi)
+			{
+				rc.srcTexture = GetTextureIndexUAV(textures[MipSlice::Float16_1], 0);
+				rc.dstTexture = GetTextureIndexUAV(textures[MipSlice::Float16_0], 0);
+				CmdSetComputeRootConstants(0, sizeof(rc), &rc);
+			}
+			else
+			{
+				CmdSetRootConstants(stage.rootSignature, ShaderStage::Compute, &rc);
+			}
 			CmdBarrier(ARRAY_LEN(tempBarriers), tempBarriers);
 			Dispatch(w, h);
 		}
@@ -272,10 +322,22 @@ void MipMapGenerator::GenerateMipMaps(HTexture texture)
 			rc.srcMip = MipSlice::Float16_0;
 			rc.dstMip = MipSlice::Count + destMip;
 
-			CmdBindRootSignature(stage.rootSignature);
+			if(!ddhi)
+			{
+				CmdBindRootSignature(stage.rootSignature);
+			}
 			CmdBindPipeline(stage.pipeline);
-			CmdBindDescriptorTable(stage.rootSignature, stage.descriptorTable);
+			if(ddhi)
-			CmdSetRootConstants(stage.rootSignature, ShaderStage::Compute, &rc);
+			{
+				rc.srcTexture = GetTextureIndexUAV(textures[MipSlice::Float16_0], 0);
+				rc.dstTexture = GetTextureIndexUAV(texture, destMip);
+				CmdSetComputeRootConstants(0, sizeof(rc), &rc);
+			}
+			else
+			{
+				CmdBindDescriptorTable(stage.rootSignature, stage.descriptorTable);
+				CmdSetRootConstants(stage.rootSignature, ShaderStage::Compute, &rc);
+			}
 			CmdBarrier(ARRAY_LEN(tempBarriers), tempBarriers);
 			Dispatch(w, h);
 		}

code/renderer/srp_nuklear.cpp

@@ -1,6 +1,6 @@
 /*
 ===========================================================================
-Copyright (C) 2023 Gian 'myT' Schellenbaum
+Copyright (C) 2023-2024 Gian 'myT' Schellenbaum
 
 This file is part of Challenge Quake 3 (CNQ3).
 
@@ -21,9 +21,7 @@ along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
 // Gameplay Rendering Pipeline - Nuklear integration
 
 
-#include "grp_local.h"
+#include "srp_local.h"
-#include "hlsl/nuklear_vs.h"
-#include "hlsl/nuklear_ps.h"
 
 
 #define MAX_NUKLEAR_VERTEX_COUNT    (1024 * 1024)
@@ -53,9 +51,12 @@ struct NuklearVertex
 #pragma pack(pop)
 
 
-void Nuklear::Init()
+void Nuklear::Init(bool ddhi_, const ShaderByteCode& vs, const ShaderByteCode& ps, TextureFormat::Id rtFormat, HDescriptorTable descTable, RootSignatureDesc* rootSigDesc)
 {
-	if(grp.firstInit)
+	ddhi = ddhi_;
+	descriptorTable = descTable;
+
+	if(srp.firstInit)
 	{
 		for(int i = 0; i < FrameCount; i++)
 		{
@@ -70,8 +71,9 @@ void Nuklear::Init()
 			fr->vertexBuffer = CreateBuffer(idx);
 		}
 
+		if(!ddhi)
 		{
-			RootSignatureDesc desc = grp.rootSignatureDesc;
+			RootSignatureDesc desc = *rootSigDesc;
 			desc.name = "Nuklear";
 			desc.constants[ShaderStage::Vertex].byteCount = sizeof(VertexRC);
 			desc.constants[ShaderStage::Pixel].byteCount = sizeof(PixelRC);
@@ -82,8 +84,8 @@ void Nuklear::Init()
 	{
 		GraphicsPipelineDesc desc("Nuklear", rootSignature);
 		desc.shortLifeTime = true;
-		desc.vertexShader = ShaderByteCode(g_vs);
+		desc.vertexShader = vs;
-		desc.pixelShader = ShaderByteCode(g_ps);
+		desc.pixelShader = ps;
 		desc.vertexLayout.bindingStrides[0] = sizeof(NuklearVertex);
 		desc.vertexLayout.AddAttribute(0, ShaderSemantic::Position,
 			DataType::Float32, 2, offsetof(NuklearVertex, position));
@@ -96,7 +98,7 @@ void Nuklear::Init()
 		desc.depthStencil.enableDepthTest = false;
 		desc.depthStencil.enableDepthWrites = false;
 		desc.rasterizer.cullMode = CT_TWO_SIDED;
-		desc.AddRenderTarget(GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA, grp.renderTargetFormat);
+		desc.AddRenderTarget(GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA, rtFormat);
 		pipeline = CreateGraphicsPipeline(desc);
 	}
 }
@@ -109,24 +111,30 @@ void Nuklear::BeginFrame()
 	numIndexes = 0;
 }
 
-void Nuklear::Begin()
+void Nuklear::Begin(HTexture renderTarget)
 {
-	if(grp.renderMode == RenderMode::Nuklear)
+	if(srp.renderMode == RenderMode::Nuklear)
 	{
 		return;
 	}
 
-	grp.renderMode = RenderMode::Nuklear;
+	srp.renderMode = RenderMode::Nuklear;
 
-	renderPassIndex = grp.BeginRenderPass("Nuklear", 0.75f, 0.75f, 1.0f);
+	renderPassIndex = srp.BeginRenderPass("Nuklear", 0.75f, 0.75f, 1.0f);
 
 	FrameResources* const fr = &frameResources[GetFrameIndex()];
 
 	const uint32_t vertexStride = sizeof(NuklearVertex);
-	CmdBindRenderTargets(1, &grp.renderTarget, NULL);
+	CmdBindRenderTargets(1, &renderTarget, NULL);
-	CmdBindRootSignature(rootSignature);
+	if(!ddhi)
+	{
+		CmdBindRootSignature(rootSignature);
+	}
 	CmdBindPipeline(pipeline);
-	CmdBindDescriptorTable(rootSignature, grp.descriptorTable);
+	if(!ddhi)
+	{
+		CmdBindDescriptorTable(rootSignature, descriptorTable);
+	}
 	CmdBindVertexBuffers(1, &fr->vertexBuffer, &vertexStride, NULL);
 	CmdBindIndexBuffer(fr->indexBuffer, IndexType::UInt32, 0);
 	CmdSetViewport(0, 0, glConfig.vidWidth, glConfig.vidHeight);
@@ -142,7 +150,14 @@ void Nuklear::Begin()
 		0.0f,              0.0f,              0.5f, 0.0f,
 		(R + L) / (L - R), (T + B) / (B - T), 0.5f, 1.0f
 	};
-	CmdSetRootConstants(rootSignature, ShaderStage::Vertex, &vertexRC);
+	if(ddhi)
+	{
+		CmdSetGraphicsRootConstants(0, sizeof(vertexRC), &vertexRC);
+	}
+	else
+	{
+		CmdSetRootConstants(rootSignature, ShaderStage::Vertex, &vertexRC);
+	}
 
 	for(int i = 0; i < 4; ++i)
 	{
@@ -152,9 +167,9 @@ void Nuklear::Begin()
 
 void Nuklear::End()
 {
-	grp.EndRenderPass(renderPassIndex);
+	srp.EndRenderPass(renderPassIndex);
 
-	grp.renderMode = RenderMode::None;
+	srp.renderMode = RenderMode::None;
 }
 
 void Nuklear::Upload(const nuklearUploadCommand_t& cmd)
@@ -196,7 +211,14 @@ void Nuklear::Draw(const nuklearDrawCommand_t& cmd)
 	PixelRC pixelRC = {};
 	pixelRC.texture = (uint32_t)image->textureIndex;
 	pixelRC.sampler = GetSamplerIndex(image->wrapClampMode, TextureFilter::Linear);
-	CmdSetRootConstants(rootSignature, ShaderStage::Pixel, &pixelRC);
+	if(ddhi)
+	{
+		CmdSetGraphicsRootConstants(sizeof(VertexRC), sizeof(pixelRC), &pixelRC);
+	}
+	else
+	{
+		CmdSetRootConstants(rootSignature, ShaderStage::Pixel, &pixelRC);
+	}
 
 	if(memcmp(cmd.scissorRect, prevScissorRect, sizeof(prevScissorRect)) != 0)
 	{

code/renderer/srp_ui.cpp

@@ -1,6 +1,6 @@
 /*
 ===========================================================================
-Copyright (C) 2022-2023 Gian 'myT' Schellenbaum
+Copyright (C) 2022-2024 Gian 'myT' Schellenbaum
 
 This file is part of Challenge Quake 3 (CNQ3).
 
@@ -18,16 +18,13 @@ You should have received a copy of the GNU General Public License
 along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
 ===========================================================================
 */
-// Gameplay Rendering Pipeline - UI/2D rendering
+// Shared Rendering Pipeline - UI/2D rendering
 
 
-#include "grp_local.h"
+#include "srp_local.h"
-#include "hlsl/ui_vs.h"
-#include "hlsl/ui_ps.h"
 
 
 #pragma pack(push, 4)
-
 struct VertexRC
 {
 	float scale[2];
@@ -38,16 +35,23 @@ struct PixelRC
 	uint32_t texture;
 	uint32_t sampler;
 };
-
 #pragma pack(pop)
 
 
-void UI::Init()
+void UI::Init(bool ddhi_, const ShaderByteCode& vs, const ShaderByteCode& ps, TextureFormat::Id rtFormat, HDescriptorTable descTable, RootSignatureDesc* rootSigDesc)
 {
-	if(grp.firstInit)
+	ddhi = ddhi_;
+	descriptorTable = descTable;
+
+	if(srp.firstInit)
 	{
+		if(ddhi)
 		{
-			RootSignatureDesc desc = grp.rootSignatureDesc;
+			rootSignature = RHI_MAKE_NULL_HANDLE();
+		}
+		else
+		{
+			RootSignatureDesc desc = *rootSigDesc;
 			desc.name = "UI";
 			desc.constants[ShaderStage::Vertex].byteCount = 8;
 			desc.constants[ShaderStage::Pixel].byteCount = 8;
@@ -71,8 +75,8 @@ void UI::Init()
 	{
 		GraphicsPipelineDesc desc("UI", rootSignature);
 		desc.shortLifeTime = true;
-		desc.vertexShader = ShaderByteCode(g_vs);
+		desc.vertexShader = vs;
-		desc.pixelShader = ShaderByteCode(g_ps);
+		desc.pixelShader = ps;
 		desc.vertexLayout.bindingStrides[0] = sizeof(UI::Vertex);
 		desc.vertexLayout.AddAttribute(0, ShaderSemantic::Position,
 			DataType::Float32, 2, offsetof(UI::Vertex, position));
@@ -85,7 +89,7 @@ void UI::Init()
 		desc.depthStencil.enableDepthTest = false;
 		desc.depthStencil.enableDepthWrites = false;
 		desc.rasterizer.cullMode = CT_TWO_SIDED;
-		desc.AddRenderTarget(GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA, grp.renderTargetFormat);
+		desc.AddRenderTarget(GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA, rtFormat);
 		pipeline = CreateGraphicsPipeline(desc);
 	}
 }
@@ -99,20 +103,29 @@ void UI::BeginFrame()
 	renderPassIndex = UINT32_MAX;
 }
 
-void UI::Begin()
+void UI::Begin(HTexture renderTarget)
 {
-	grp.renderMode = RenderMode::UI;
+	srp.renderMode = RenderMode::UI;
 
-	renderPassIndex = grp.BeginRenderPass("UI", 0.0f, 0.85f, 1.0f);
+	renderPassIndex = srp.BeginRenderPass("UI", 0.0f, 0.85f, 1.0f);
 
-	CmdBindRenderTargets(1, &grp.renderTarget, NULL);
+	const TextureBarrier tb(renderTarget, ResourceStates::RenderTargetBit);
+	CmdBarrier(1, &tb);
+
+	CmdBindRenderTargets(1, &renderTarget, NULL);
 
 	// UI always uses the entire render surface
 	CmdSetViewportAndScissor(0, 0, glConfig.vidWidth, glConfig.vidHeight);
 
-	CmdBindRootSignature(rootSignature);
+	if(!ddhi)
+	{
+		CmdBindRootSignature(rootSignature);
+	}
 	CmdBindPipeline(pipeline);
-	CmdBindDescriptorTable(rootSignature, grp.descriptorTable);
+	if(!ddhi)
+	{
+		CmdBindDescriptorTable(rootSignature, descriptorTable);
+	}
 	const uint32_t stride = sizeof(UI::Vertex);
 	CmdBindVertexBuffers(1, &vertexBuffer, &stride, NULL);
 	CmdBindIndexBuffer(indexBuffer, indexType, 0);
@@ -120,16 +133,23 @@ void UI::Begin()
 	VertexRC vertexRC = {};
 	vertexRC.scale[0] = 2.0f / glConfig.vidWidth;
 	vertexRC.scale[1] = 2.0f / glConfig.vidHeight;
-	CmdSetRootConstants(rootSignature, ShaderStage::Vertex, &vertexRC);
+	if(ddhi)
+	{
+		CmdSetGraphicsRootConstants(0, sizeof(vertexRC), &vertexRC);
+	}
+	else
+	{
+		CmdSetRootConstants(rootSignature, ShaderStage::Vertex, &vertexRC);
+	}
 }
 
 void UI::End()
 {
 	DrawBatch();
 
-	grp.EndRenderPass(renderPassIndex);
+	srp.EndRenderPass(renderPassIndex);
 
-	grp.renderMode = RenderMode::None;
+	srp.renderMode = RenderMode::None;
 }
 
 void UI::DrawBatch()
@@ -146,7 +166,14 @@ void UI::DrawBatch()
 	PixelRC pixelRC = {};
 	pixelRC.texture = GetBundleImage(bundle)->textureIndex;
 	pixelRC.sampler = GetSamplerIndex(wrapMode, TextureFilter::Linear);
-	CmdSetRootConstants(rootSignature, ShaderStage::Pixel, &pixelRC);
+	if(ddhi)
+	{
+		CmdSetGraphicsRootConstants(sizeof(VertexRC), sizeof(PixelRC), &pixelRC);
+	}
+	else
+	{
+		CmdSetRootConstants(rootSignature, ShaderStage::Pixel, &pixelRC);
+	}
 
 	CmdDrawIndexed(indexCount, firstIndex, 0);
 	firstIndex += indexCount;
@@ -155,7 +182,7 @@ void UI::DrawBatch()
 	vertexCount = 0;
 }
 
-void UI::UISetColor(const uiSetColorCommand_t& cmd)
+void UI::CmdSetColor(const uiSetColorCommand_t& cmd)
 {
 	const float rgbScale = tr.identityLight * 255.0f;
 	byte* const colors = (byte*)&color;
@@ -165,7 +192,7 @@ void UI::UISetColor(const uiSetColorCommand_t& cmd)
 	colors[3] = (byte)(cmd.color[3] * 255.0f);
 }
 
-void UI::UIDrawQuad(const uiDrawQuadCommand_t& cmd)
+void UI::CmdDrawQuad(const uiDrawQuadCommand_t& cmd)
 {
 	if(vertexCount + 4 > maxVertexCount ||
 		indexCount + 6 > maxIndexCount)
@@ -217,7 +244,7 @@ void UI::UIDrawQuad(const uiDrawQuadCommand_t& cmd)
 	vertices[v + 3].color = color;
 }
 
-void UI::UIDrawTriangle(const uiDrawTriangleCommand_t& cmd)
+void UI::CmdDrawTriangle(const uiDrawTriangleCommand_t& cmd)
 {
 	if(vertexCount + 3 > maxVertexCount ||
 		indexCount + 3 > maxIndexCount)

code/renderer/tr_init.cpp

@@ -90,6 +90,7 @@ cvar_t	*r_picmip;
 cvar_t	*r_clear;
 cvar_t	*r_vsync;
 cvar_t	*r_lego;
+cvar_t	*r_pipeline;
 cvar_t	*r_lockpvs;
 cvar_t	*r_noportals;
 cvar_t	*r_portalOnly;
@@ -445,10 +446,16 @@ static const cvarTableItem_t r_cvars[] =
 	},
 	{
 		&r_vsync, "r_vsync", "0", CVAR_ARCHIVE | CVAR_LATCH, CVART_BOOL, NULL, NULL, "enables v-sync",
-		"V-Sync", CVARCAT_DISPLAY | CVARCAT_PERFORMANCE, "Enabling locks the framerate to the monitor's refresh rate", ""
+		"V-Sync", CVARCAT_DISPLAY | CVARCAT_PERFORMANCE, "Enabling locks the framerate to the monitor's refresh rate", "",
 		CVAR_GUI_VALUE("0", "Frame cap", "The framerate is capped by CNQ3's own limiter")
 		CVAR_GUI_VALUE("1", "V-Sync", "The framerate matches the monitor's refresh rate")
 	},
+	{
+		&r_pipeline, "r_pipeline", "0", CVAR_ARCHIVE | CVAR_LATCH, CVART_BOOL, NULL, NULL, "rendering pipeline",
+		"Rendering pipeline", CVARCAT_GRAPHICS, "", "",
+		CVAR_GUI_VALUE("0", "Gameplay", "Use to play the game")
+		CVAR_GUI_VALUE("1", "Cinematic", "Use for screenshots and movies")
+	},
 
 	//
 	// latched variables that can only change over a restart
@@ -751,6 +758,7 @@ void R_Init()
 
 	R_InitMipFilter();
 
+	R_SelectRenderPipeline();
 	renderPipeline->Init();
 
 	R_InitImages();
@@ -773,6 +781,9 @@ static void RE_Shutdown( qbool destroyWindow )
 
 	if ( tr.registered ) {
 		ri.Cmd_UnregisterModule();
+		if ( !destroyWindow && r_pipeline->latchedString != NULL ) {
+			destroyWindow = qtrue;
+		}
 		renderPipeline->ShutDown( destroyWindow );
 	}
 

code/renderer/tr_local.h

@@ -28,6 +28,11 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 #include "../qcommon/qfiles.h"
 #include "../qcommon/qcommon.h"
 #include "tr_public.h"
+#include "shaders/common/state_bits.h.hlsli" // contains all the shared GLS_* macros
+
+
+#define GLS_DEFAULT			GLS_DEPTHMASK_TRUE
+#define GLS_DEFAULT_2D		(GLS_DEPTHTEST_DISABLE | GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA)
 
 
 extern const float s_flipMatrix[16];
@@ -427,6 +432,9 @@ struct shader_t {
 	pipeline_t pipelines[MAX_SHADER_STAGES];
 	int numPipelines;
 
+	pipeline_t transpPipelines[MAX_SHADER_STAGES];
+	int numTranspPipelines;
+
 	shader_t* next;
 };
 
@@ -473,6 +481,7 @@ typedef struct {
 	float		projectionMatrix[16];
 	cplane_t	frustum[4];
 	vec3_t		visBounds[2];
+	float		zNear;
 	float		zFar;
 } viewParms_t;
 
@@ -1061,6 +1070,7 @@ extern	cvar_t	*r_picmip;				// controls picmip values
 
 extern	cvar_t	*r_vsync;
 extern	cvar_t	*r_lego;
+extern	cvar_t	*r_pipeline;
 
 extern	cvar_t	*r_vertexLight;			// vertex lighting mode for better performance
 extern	cvar_t	*r_uiFullScreen;		// ui is running fullscreen
@@ -1112,49 +1122,11 @@ int R_CullPointAndRadius( const vec3_t origin, float radius );
 int R_CullLocalPointAndRadius( const vec3_t origin, float radius );
 
 void R_RotateForEntity( const trRefEntity_t* ent, const viewParms_t* viewParms, orientationr_t* orient );
+void R_CreateWorldModelMatrix( const vec3_t origin, const vec3_t axis[3], float* viewMatrix );
 
 typedef void (*updateAnimatedImage_t)( image_t* image, int w, int h, const byte* data, qbool dirty );
 const image_t* R_UpdateAndGetBundleImage( const textureBundle_t* bundle, updateAnimatedImage_t updateImage );
 
-
-#define GLS_SRCBLEND_ZERO						0x00000001
-#define GLS_SRCBLEND_ONE						0x00000002
-#define GLS_SRCBLEND_DST_COLOR					0x00000003
-#define GLS_SRCBLEND_ONE_MINUS_DST_COLOR		0x00000004
-#define GLS_SRCBLEND_SRC_ALPHA					0x00000005
-#define GLS_SRCBLEND_ONE_MINUS_SRC_ALPHA		0x00000006
-#define GLS_SRCBLEND_DST_ALPHA					0x00000007
-#define GLS_SRCBLEND_ONE_MINUS_DST_ALPHA		0x00000008
-#define GLS_SRCBLEND_ALPHA_SATURATE				0x00000009
-#define		GLS_SRCBLEND_BITS					0x0000000f
-
-#define GLS_DSTBLEND_ZERO						0x00000010
-#define GLS_DSTBLEND_ONE						0x00000020
-#define GLS_DSTBLEND_SRC_COLOR					0x00000030
-#define GLS_DSTBLEND_ONE_MINUS_SRC_COLOR		0x00000040
-#define GLS_DSTBLEND_SRC_ALPHA					0x00000050
-#define GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA		0x00000060
-#define GLS_DSTBLEND_DST_ALPHA					0x00000070
-#define GLS_DSTBLEND_ONE_MINUS_DST_ALPHA		0x00000080
-#define		GLS_DSTBLEND_BITS					0x000000f0
-
-#define		GLS_BLEND_BITS						0x000000ff
-
-#define GLS_DEPTHMASK_TRUE						0x00000100	// enable depth writes
-
-#define GLS_POLYMODE_LINE						0x00001000	// wireframe polygon filling, not line rendering
-
-#define GLS_DEPTHTEST_DISABLE					0x00010000	// disable depth tests
-#define GLS_DEPTHFUNC_EQUAL						0x00020000
-
-#define GLS_ATEST_GT_0							0x10000000
-#define GLS_ATEST_LT_80							0x20000000
-#define GLS_ATEST_GE_80							0x40000000
-#define		GLS_ATEST_BITS						0x70000000
-
-#define GLS_DEFAULT			GLS_DEPTHMASK_TRUE
-#define GLS_DEFAULT_2D		(GLS_DEPTHTEST_DISABLE | GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA)
-
 void		RE_LoadWorldMap( const char *mapname );
 void		RE_SetWorldVisData( const byte *vis );
 qhandle_t	RE_RegisterModel( const char *name );
@@ -1309,6 +1281,9 @@ struct shaderCommands_t
 
 	// how to process the colors of the current batch
 	float greyscale;
+
+	// identifier of the code currently tessellating geometry
+	int tessellator;
 };
 
 extern shaderCommands_t tess;
@@ -1490,7 +1465,6 @@ struct drawSceneViewCommand_t : renderCommandBase_t {
 
 struct endSceneCommand_t : renderCommandBase_t {
 	viewParms_t viewParms;
-	uint32_t padding2;
 };
 
 struct nuklearUploadCommand_t : renderCommandBase_t {
@@ -1631,6 +1605,11 @@ void R_CameraAxisVectorsFromMatrix( const float* modelView, vec3_t axisX, vec3_t
 void R_MakeIdentityMatrix( float* m );
 void R_MakeOrthoProjectionMatrix( float* m, float w, float h );
 
+// LinearDepth(depthZW, A, B) -> B / (depthZW - A)
+void R_LinearDepthConstantsFromProjectionMatrix( const float* projMatrix, float* A, float* B );
+void R_LinearDepthConstantsFromClipPlanes( float zNear, float zFar, float* A, float* B );
+void RB_LinearDepthConstants( float* A, float* B );
+
 
 ///////////////////////////////////////////////////////////////
 
@@ -1693,20 +1672,18 @@ struct IRenderPipeline
 	virtual void EndTextureUpload() = 0;
 
 	virtual void ExecuteRenderCommands(const byte* data, bool readbackRequested) = 0;
-
-	virtual void UISetColor(const uiSetColorCommand_t& cmd) = 0;
-	virtual void UIDrawQuad(const uiDrawQuadCommand_t& cmd) = 0;
-	virtual void UIDrawTriangle(const uiDrawTriangleCommand_t& cmd) = 0;
-	virtual void DrawSceneView(const drawSceneViewCommand_t& cmd) = 0;
 	virtual void TessellationOverflow() = 0;
 	virtual void DrawSkyBox() = 0;
 	virtual void DrawClouds() = 0;
-
 	virtual void ReadPixels(int w, int h, int alignment, colorSpace_t colorSpace, void* out) = 0;
+
+	virtual uint32_t GetSamplerDescriptorIndexFromBaseIndex(uint32_t baseIndex) = 0;
 };
 
 extern IRenderPipeline* renderPipeline;
 
+void R_SelectRenderPipeline();
+
 struct RHIExport
 {
 	uint32_t renderToPresentUS;

code/renderer/tr_main.cpp

@@ -464,6 +464,26 @@ void R_MakeOrthoProjectionMatrix( float* m, float w, float h )
 }
 
 
+void R_LinearDepthConstantsFromProjectionMatrix( const float* projMatrix, float* A, float* B )
+{
+	*A = -projMatrix[2 * 4 + 2];
+	*B =  projMatrix[3 * 4 + 2];
+}
+
+
+void R_LinearDepthConstantsFromClipPlanes( float n, float f, float* A, float* B )
+{
+	*A = -n / (f - n);
+	*B = f * (n / (f - n));
+}
+
+
+void RB_LinearDepthConstants( float* A, float* B )
+{
+	R_LinearDepthConstantsFromProjectionMatrix( backEnd.viewParms.projectionMatrix, A, B );
+}
+
+
 /*
 =================
 R_RotateForEntity
@@ -534,13 +554,40 @@ void R_RotateForEntity( const trRefEntity_t* ent, const viewParms_t* viewParms,
 }
 
 
+void R_CreateWorldModelMatrix( const vec3_t origin, const vec3_t axis[3], float* viewMatrix )
+{
+	float viewerMatrix[16];
+
+	viewerMatrix[0] = axis[0][0];
+	viewerMatrix[4] = axis[0][1];
+	viewerMatrix[8] = axis[0][2];
+	viewerMatrix[12] = -origin[0] * viewerMatrix[0] + -origin[1] * viewerMatrix[4] + -origin[2] * viewerMatrix[8];
+
+	viewerMatrix[1] = axis[1][0];
+	viewerMatrix[5] = axis[1][1];
+	viewerMatrix[9] = axis[1][2];
+	viewerMatrix[13] = -origin[0] * viewerMatrix[1] + -origin[1] * viewerMatrix[5] + -origin[2] * viewerMatrix[9];
+
+	viewerMatrix[2] = axis[2][0];
+	viewerMatrix[6] = axis[2][1];
+	viewerMatrix[10] = axis[2][2];
+	viewerMatrix[14] = -origin[0] * viewerMatrix[2] + -origin[1] * viewerMatrix[6] + -origin[2] * viewerMatrix[10];
+
+	viewerMatrix[3] = 0.0f;
+	viewerMatrix[7] = 0.0f;
+	viewerMatrix[11] = 0.0f;
+	viewerMatrix[15] = 1.0f;
+
+	// convert from our coordinate system (looking down X)
+	// to the back-end's coordinate system (looking down -Z)
+	R_MultMatrix( viewerMatrix, s_flipMatrix, viewMatrix );
+}
+
+
 // sets up the modelview matrix for a given viewParm
 
 static void R_RotateForViewer()
 {
-	float	viewerMatrix[16];
-	vec3_t	origin;
-
 	Com_Memset( &tr.orient, 0, sizeof(tr.orient) );
 	tr.orient.axis[0][0] = 1;
 	tr.orient.axis[1][1] = 1;
@@ -548,42 +595,20 @@ static void R_RotateForViewer()
 	VectorCopy( tr.viewParms.orient.origin, tr.orient.viewOrigin );
 
 	// transform by the camera placement
-	VectorCopy( tr.viewParms.orient.origin, origin );
+	R_CreateWorldModelMatrix( tr.viewParms.orient.origin, tr.viewParms.orient.axis, tr.orient.modelMatrix );
-
-	viewerMatrix[0] = tr.viewParms.orient.axis[0][0];
-	viewerMatrix[4] = tr.viewParms.orient.axis[0][1];
-	viewerMatrix[8] = tr.viewParms.orient.axis[0][2];
-	viewerMatrix[12] = -origin[0] * viewerMatrix[0] + -origin[1] * viewerMatrix[4] + -origin[2] * viewerMatrix[8];
-
-	viewerMatrix[1] = tr.viewParms.orient.axis[1][0];
-	viewerMatrix[5] = tr.viewParms.orient.axis[1][1];
-	viewerMatrix[9] = tr.viewParms.orient.axis[1][2];
-	viewerMatrix[13] = -origin[0] * viewerMatrix[1] + -origin[1] * viewerMatrix[5] + -origin[2] * viewerMatrix[9];
-
-	viewerMatrix[2] = tr.viewParms.orient.axis[2][0];
-	viewerMatrix[6] = tr.viewParms.orient.axis[2][1];
-	viewerMatrix[10] = tr.viewParms.orient.axis[2][2];
-	viewerMatrix[14] = -origin[0] * viewerMatrix[2] + -origin[1] * viewerMatrix[6] + -origin[2] * viewerMatrix[10];
-
-	viewerMatrix[3] = 0;
-	viewerMatrix[7] = 0;
-	viewerMatrix[11] = 0;
-	viewerMatrix[15] = 1;
-
-	// convert from our coordinate system (looking down X)
-	// to the back-end's coordinate system (looking down -Z)
-	R_MultMatrix( viewerMatrix, s_flipMatrix, tr.orient.modelMatrix );
 
 	tr.viewParms.world = tr.orient;
 }
 
 
-static void SetFarClip()
+static void SetClipPlanes()
 {
+	tr.viewParms.zNear = 1.0f;
+
 	// if not rendering the world (icons, menus, etc)
 	// set a 2k far clip plane
 	if ( tr.refdef.rdflags & RDF_NOWORLDMODEL ) {
-		tr.viewParms.zFar = 2048;
+		tr.viewParms.zFar = 2048.0f;
 		return;
 	}
 
@@ -614,37 +639,37 @@ static void R_SetupProjection()
 	float	zNear, zFar;
 
 	// dynamically compute far clip plane distance
-	SetFarClip();
+	SetClipPlanes();
 
 	//
 	// set up projection matrix
 	//
-	zNear = 1.0f;
+	zNear = tr.viewParms.zNear;
 	zFar  = tr.viewParms.zFar;
 
 	height = 2.0f * zNear * tan( tr.refdef.fov_y * M_PI / 360.0f );
 	width  = 2.0f * zNear * tan( tr.refdef.fov_x * M_PI / 360.0f );
 	depth  = zFar - zNear;
 
-	tr.viewParms.projectionMatrix[0] = 2 * zNear / width;
+	tr.viewParms.projectionMatrix[ 0] = 2.0f * zNear / width;
-	tr.viewParms.projectionMatrix[4] = 0;
+	tr.viewParms.projectionMatrix[ 4] = 0.0f;
-	tr.viewParms.projectionMatrix[8] = 0;
+	tr.viewParms.projectionMatrix[ 8] = 0.0f;
-	tr.viewParms.projectionMatrix[12] = 0;
+	tr.viewParms.projectionMatrix[12] = 0.0f;
 
-	tr.viewParms.projectionMatrix[1] = 0;
+	tr.viewParms.projectionMatrix[ 1] = 0.0f;
-	tr.viewParms.projectionMatrix[5] = 2 * zNear / height;
+	tr.viewParms.projectionMatrix[ 5] = 2.0f * zNear / height;
-	tr.viewParms.projectionMatrix[9] = 0;
+	tr.viewParms.projectionMatrix[ 9] = 0.0f;
-	tr.viewParms.projectionMatrix[13] = 0;
+	tr.viewParms.projectionMatrix[13] = 0.0f;
 
-	tr.viewParms.projectionMatrix[2] = 0;
+	tr.viewParms.projectionMatrix[ 2] = 0.0f;
-	tr.viewParms.projectionMatrix[6] = 0;
+	tr.viewParms.projectionMatrix[ 6] = 0.0f;
 	tr.viewParms.projectionMatrix[10] = zNear / depth;
 	tr.viewParms.projectionMatrix[14] = zFar * zNear / depth;
 
-	tr.viewParms.projectionMatrix[3] = 0;
+	tr.viewParms.projectionMatrix[ 3] =  0.0f;
-	tr.viewParms.projectionMatrix[7] = 0;
+	tr.viewParms.projectionMatrix[ 7] =  0.0f;
-	tr.viewParms.projectionMatrix[11] = -1;
+	tr.viewParms.projectionMatrix[11] = -1.0f;
-	tr.viewParms.projectionMatrix[15] = 0;
+	tr.viewParms.projectionMatrix[15] =  0.0f;
 }
 
 

code/shadercomp/shadercomp.cpp

@@ -1,9 +1,44 @@
+/*
+===========================================================================
+Copyright (C) 2022-2024 Gian 'myT' Schellenbaum
+
+This file is part of Challenge Quake 3 (CNQ3).
+
+Challenge Quake 3 is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Challenge Quake 3 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
+===========================================================================
+*/
+// compiles core shaders as byte code to be embedded into the CNQ3 client
+
+
 #include <Windows.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <assert.h>
+#include <shlwapi.h>
+#include <sal.h>
 
-#include "../renderer/uber_shaders.h"
+#include "../renderer/grp_uber_shaders.h"
+
+
+char repoPath[MAX_PATH];
+char outputPath[MAX_PATH];
+char bin2headerPath[MAX_PATH];
+char dxcPath[MAX_PATH];
+
+const char* targetVS = "vs_6_0";
+const char* targetPS = "ps_6_0";
+const char* targetCS = "cs_6_0";
 
 
 #define PS(Data) #Data,
@@ -22,7 +57,7 @@ const char* uberShaderPixelStates[] =
 // -Wno-warning disables the warning
 
 
-const char* va(const char* format, ...)
+const char* va(_Printf_format_string_ const char* format, ...)
 {
 	static char string[64][32000];
 	static int index = 0;
@@ -49,12 +84,14 @@ void CompileShader(const ShaderArgs& args, int extraCount = 0, const char** extr
 {
 	static char temp[4096];
 
+	const char* headerPath = va("%s\\%s", outputPath, args.headerPath);
+
 	// -Ges: Enable strict mode
 	// -Gis: Force IEEE strictness
 	// -Zi: Embed debug info
 	// -Qembed_debug: Embed debug info in shader container
-	strcpy(temp, va("dxc.exe -Fh %s -E %s -T %s -WX -Ges -Gis -Zi -Qembed_debug",
+	strcpy(temp, va("%s -Fh %s -E %s -T %s -WX -Ges -Gis -Zi -Qembed_debug",
-		args.headerPath, args.entryPoint, args.targetProfile));
+		dxcPath, headerPath, args.entryPoint, args.targetProfile));
 
 	for(int i = 0; i < extraCount; ++i)
 	{
@@ -93,7 +130,7 @@ void CompileSMAAShader(const SMAAArgs& smaaArgs)
 	args.entryPoint = smaaArgs.vertexShader ? "vs" : "ps";
 	args.headerPath = smaaArgs.headerPath;
 	args.shaderPath = smaaArgs.shaderPath;
-	args.targetProfile = smaaArgs.vertexShader ? "vs_6_0" : "ps_6_0";
+	args.targetProfile = smaaArgs.vertexShader ? targetVS : targetPS;
 	CompileShader(args, _countof(extras), extras);
 }
 
@@ -130,7 +167,7 @@ void CompileVS(const char* headerPath, const char* shaderPath)
 	args.entryPoint = "vs";
 	args.headerPath = headerPath;
 	args.shaderPath = shaderPath;
-	args.targetProfile = "vs_6_0";
+	args.targetProfile = targetVS;
 	CompileShader(args, _countof(extras), extras);
 }
 
@@ -142,7 +179,7 @@ void CompilePS(const char* headerPath, const char* shaderPath)
 	args.entryPoint = "ps";
 	args.headerPath = headerPath;
 	args.shaderPath = shaderPath;
-	args.targetProfile = "ps_6_0";
+	args.targetProfile = targetPS;
 	CompileShader(args, _countof(extras), extras);
 }
 
@@ -154,7 +191,7 @@ void CompileCS(const char* headerPath, const char* shaderPath)
 	args.entryPoint = "cs";
 	args.headerPath = headerPath;
 	args.shaderPath = shaderPath;
-	args.targetProfile = "cs_6_0";
+	args.targetProfile = targetCS;
 	CompileShader(args, _countof(extras), extras);
 }
 
@@ -177,7 +214,7 @@ void CompileUberVS(const char* headerPath, const char* shaderPath, int stageCoun
 	args.entryPoint = "vs";
 	args.headerPath = headerPath;
 	args.shaderPath = shaderPath;
-	args.targetProfile = "vs_6_0";
+	args.targetProfile = targetVS;
 	CompileShader(args, _countof(extras), extras);
 }
 
@@ -213,26 +250,38 @@ void CompileUberPS(const char* stateString)
 	args.entryPoint = "ps";
 	args.headerPath = va("uber_shader_ps_%s.h", stateString);
 	args.shaderPath = "uber_shader.hlsl";
-	args.targetProfile = "ps_6_0";
+	args.targetProfile = targetPS;
 	CompileShader(args, extraCount, extras);
 }
 
-int main(int /*argc*/, const char** argv)
+const char* Canonicalize(const char* path)
 {
-	char dirPath[MAX_PATH];
+	static char canonPath[MAX_PATH];
-	strcpy(dirPath, argv[0]);
-	int l = strlen(dirPath);
-	while(l-- > 0)
-	{
-		if(dirPath[l] == '/' || dirPath[l] == '\\')
-		{
-			dirPath[l] = '\0';
-			break;
-		}
-	}
-	SetCurrentDirectoryA(dirPath);
 
-	system("del *.h");
+	PathCanonicalizeA(canonPath, path);
+
+	return canonPath;
+}
+
+void InitDirectory(const char* dirName)
+{
+	const char* rendererPath = va("%s\\code\\renderer", repoPath);
+	const char* cd = Canonicalize(va("%s\\shaders\\%s", rendererPath, dirName));
+	SetCurrentDirectoryA(cd);
+	const char* out = Canonicalize(va("%s\\compshaders\\%s", rendererPath, dirName));
+	strcpy(outputPath, out);
+	CreateDirectoryA(outputPath, NULL);
+
+	system(va("del %s\\*.h", outputPath));
+	system(va("del %s\\*.temp", outputPath));
+}
+
+void ProcessGRP()
+{
+	InitDirectory("grp");
+	targetVS = "vs_6_0";
+	targetPS = "ps_6_0";
+	targetCS = "cs_6_0";
 
 	CompileVSAndPS("post_gamma", "post_gamma.hlsl");
 	CompileVSAndPS("post_inverse_gamma", "post_inverse_gamma.hlsl");
@@ -249,25 +298,91 @@ int main(int /*argc*/, const char** argv)
 	CompileCS("mip_3_cs.h", "mip_3.hlsl");
 
 	CompileSMAAShaders();
-	system("type smaa*.h > complete_smaa.h");
+	system(va("type %s\\smaa*.h > %s\\complete_smaa.h", outputPath, outputPath));
 
-	system("type shared.hlsli uber_shader.hlsl > uber_shader.temp"); // combines both files into one
+	// type combines all files into one
-	system("..\\..\\..\\tools\\bin2header.exe --output uber_shader.h --hname uber_shader_string uber_shader.temp");
+	system(va("type ..\\common\\state_bits.h.hlsli ..\\common\\blend.hlsli shared.hlsli uber_shader.hlsl > %s\\uber_shader.temp", outputPath));
-	system("del uber_shader.temp");
+	system(va("%s --output %s\\uber_shader.h --hname uber_shader_string %s\\uber_shader.temp", bin2headerPath, outputPath, outputPath));
+	system(va("del %s\\uber_shader.temp", outputPath));
 
 	for(int i = 0; i < 8; ++i)
 	{
 		CompileUberVS(va("uber_shader_vs_%i.h", i + 1), "uber_shader.hlsl", i + 1);
 	}
-	system("type uber_shader_vs_*.h > complete_uber_vs.h");
+	system(va("type %s\\uber_shader_vs_*.h > %s\\complete_uber_vs.h", outputPath, outputPath));
-	system("del uber_shader_vs_*.h");
+	system(va("del %s\\uber_shader_vs_*.h", outputPath));
 
 	for(int i = 0; i < _countof(uberShaderPixelStates); ++i)
 	{
 		CompileUberPS(uberShaderPixelStates[i]);
 	}
-	system("type uber_shader_ps_*.h > complete_uber_ps.h");
+	system(va("type %s\\uber_shader_ps_*.h > %s\\complete_uber_ps.h", outputPath, outputPath));
-	system("del uber_shader_ps_*.h");
+	system(va("del %s\\uber_shader_ps_*.h", outputPath));
+}
+
+void ProcessCRP()
+{
+	InitDirectory("crp");
+	targetVS = "vs_6_6";
+	targetPS = "ps_6_6";
+	targetCS = "cs_6_6";
+
+	CompileVSAndPS("blit", "blit.hlsl");
+	CompileVSAndPS("ui", "ui.hlsl");
+	CompileVSAndPS("imgui", "imgui.hlsl");
+	CompileVSAndPS("nuklear", "nuklear.hlsl");
+	CompileCS("mip_1_cs.h", "mip_1.hlsl");
+	CompileCS("mip_2_cs.h", "mip_2.hlsl");
+	CompileCS("mip_3_cs.h", "mip_3.hlsl");
+
+	CompileVSAndPS("opaque", "opaque.hlsl");
+	CompileVSAndPS("transp_draw", "transp_draw.hlsl");
+	CompileVSAndPS("transp_resolve", "transp_resolve.hlsl");
+	CompileVSAndPS("tone_map", "tone_map.hlsl");
+	CompileVSAndPS("tone_map_inverse", "tone_map_inverse.hlsl");
+	CompileVSAndPS("accumdof_accum", "accumdof_accum.hlsl");
+	CompileVSAndPS("accumdof_norm", "accumdof_norm.hlsl");
+	CompileVSAndPS("accumdof_debug", "accumdof_debug.hlsl");
+	CompileCS("gatherdof_split.h", "gatherdof_split.hlsl");
+	CompileCS("gatherdof_coc_tile_gen.h", "gatherdof_coc_tile_gen.hlsl");
+	CompileCS("gatherdof_coc_tile_max.h", "gatherdof_coc_tile_max.hlsl");
+	CompileCS("gatherdof_blur.h", "gatherdof_blur.hlsl");
+	CompileCS("gatherdof_fill.h", "gatherdof_fill.hlsl");
+	CompileVSAndPS("gatherdof_combine", "gatherdof_combine.hlsl");
+	CompileVSAndPS("gatherdof_debug", "gatherdof_debug.hlsl");
+	CompileVSAndPS("fog_inside", "fog_inside.hlsl");
+	CompileVSAndPS("fog_outside", "fog_outside.hlsl");
+}
+
+int main(int /*argc*/, const char** argv)
+{
+	char dirPath[MAX_PATH];
+	strcpy(dirPath, argv[0]);
+	int l = strlen(dirPath);
+	while(l-- > 0)
+	{
+		if(dirPath[l] == '/' || dirPath[l] == '\\')
+		{
+			dirPath[l] = '\0';
+			break;
+		}
+	}
+	strcpy(repoPath, Canonicalize(va("%s\\..\\..", dirPath)));
+	strcpy(bin2headerPath, Canonicalize(va("%s\\tools\\bin2header.exe", repoPath)));
+
+	char* path = getenv("DXCPATH");
+	if(path != NULL)
+	{
+		strcpy(dxcPath, path);
+	}
+	else
+	{
+		strcpy(dxcPath, "dxc.exe");
+	}
+	system(va("%s --version", dxcPath));
+
+	ProcessGRP();
+	ProcessCRP();
 
 	return 0;
 }

makefiles/compile_shader.cmd

@@ -1,5 +0,0 @@
-@echo off
-set fxc="%FXCPATH%"
-if "%FXCPATH%"=="" if not "%DXSDK_DIR%"=="" set fxc="%DXSDK_DIR%Utilities\\bin\\x86\\fxc.exe"
-if "%FXCPATH%"=="" if     "%DXSDK_DIR%"=="" set fxc="C:\\Program Files (x86)\\Windows Kits\\10\\bin\\10.0.20348.0\\x64\\fxc.exe"
-%fxc% %*

makefiles/premake5.lua

@@ -640,17 +640,9 @@ solution "cnq3"
 			kind "ConsoleApp"
 			language "C++"
 			AddSourcesAndHeaders("shadercomp")
-			postbuildcommands { string.format("{copyfile} \"%%{cfg.buildtarget.directory}/%%{cfg.buildtarget.basename}.exe\" \"%s/renderer/hlsl\"", make_path_src) }
+			postbuildcommands { "$(TargetPath)" }
-			postbuildcommands { string.format("{copyfile} \"%%{cfg.buildtarget.directory}/%%{cfg.buildtarget.basename}.pdb\" \"%s/renderer/hlsl\"", make_path_src) }
-			postbuildcommands { string.format("\"%s/renderer/hlsl/%%{cfg.buildtarget.name}\"", make_path_src) }
 			ApplyProjectSettings(true)
-			--[[
+			links { "Shlwapi" }
-			VC++ STILL requires absolute paths for these... maybe it will be fixed a few decades after I'm in the grave
-			local debug_path_dir = string.format("%s/renderer/hlsl", make_path_src)
-			local debug_path_exe = string.format("%s/%%{cfg.buildtarget.name}", debug_path_dir)
-			debugdir(debug_path_dir)
-			debugcommand(debug_path_exe)
-			--]]
 
 		project "renderer"
 
@@ -662,8 +654,8 @@ solution "cnq3"
 				includedirs { "/usr/local/include" }
 			end
 			if os.istarget("windows") then
-				files { string.format("%s/renderer/hlsl/*.hlsl", path_src) }
+				files { string.format("%s/renderer/shaders/**.hlsl", path_src) }
-				files { string.format("%s/renderer/hlsl/*.hlsli", path_src) }
+				files { string.format("%s/renderer/shaders/**.hlsli", path_src) }
 				filter "files:**.hlsl"
 					flags { "ExcludeFromBuild" }
 				filter { }
@@ -686,6 +678,8 @@ solution "cnq3"
 			if os.istarget("windows") then
 				includedirs { path_src.."/imgui" }
 				libdirs { path_src.."/nvapi" }
+				files { string.format("premake5.lua", path_make) }
+				vpaths { ["*"] = "../code/" } -- don't allow "code" to be the parent filter
 			end
 			if os.istarget("bsd") then
 				includedirs { "/usr/local/include" }

makefiles/windows_vs2019/cnq3.vcxproj

@@ -199,16 +199,18 @@ copy "..\..\.bin\release\cnq3.pdb" "$(QUAKE3DIR)"</Command>
     <ClInclude Include="..\..\code\qcommon\vm_local.h" />
     <ClInclude Include="..\..\code\qcommon\vm_shim.h" />
     <ClInclude Include="..\..\code\renderer\D3D12MemAlloc.h" />
+    <ClInclude Include="..\..\code\renderer\crp_local.h" />
     <ClInclude Include="..\..\code\renderer\grp_local.h" />
+    <ClInclude Include="..\..\code\renderer\grp_uber_shaders.h" />
     <ClInclude Include="..\..\code\renderer\rhi_local.h" />
     <ClInclude Include="..\..\code\renderer\rhi_public.h" />
     <ClInclude Include="..\..\code\renderer\smaa_area_texture.h" />
     <ClInclude Include="..\..\code\renderer\smaa_search_texture.h" />
+    <ClInclude Include="..\..\code\renderer\srp_local.h" />
     <ClInclude Include="..\..\code\renderer\stb_image.h" />
     <ClInclude Include="..\..\code\renderer\tr_help.h" />
     <ClInclude Include="..\..\code\renderer\tr_local.h" />
     <ClInclude Include="..\..\code\renderer\tr_public.h" />
-    <ClInclude Include="..\..\code\renderer\uber_shaders.h" />
     <ClInclude Include="..\..\code\server\server.h" />
     <ClInclude Include="..\..\code\win32\resource.h" />
     <ClInclude Include="..\..\code\win32\win_help.h" />
@@ -288,6 +290,9 @@ copy "..\..\.bin\release\cnq3.pdb" "$(QUAKE3DIR)"</Command>
     <ClCompile Include="..\..\code\win32\win_syscon.cpp" />
     <ClCompile Include="..\..\code\win32\win_wndproc.cpp" />
   </ItemGroup>
+  <ItemGroup>
+    <None Include="..\premake5.lua" />
+  </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="botlib.vcxproj">
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makefiles/windows_vs2019/cnq3.vcxproj.filters

@@ -243,9 +243,15 @@
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       <Filter>renderer</Filter>
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       <Filter>renderer</Filter>
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     </ClInclude>
@@ -258,6 +264,9 @@
     <ClInclude Include="..\..\code\renderer\smaa_search_texture.h">
       <Filter>renderer</Filter>
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       <Filter>server</Filter>
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@@ -504,4 +510,7 @@
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 </Project>

makefiles/windows_vs2019/renderer.vcxproj

@@ -112,28 +112,41 @@
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     <ClInclude Include="..\..\code\renderer\grp_local.h" />
+    <ClInclude Include="..\..\code\renderer\grp_uber_shaders.h" />
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     <ClInclude Include="..\..\code\renderer\rhi_public.h" />
     <ClInclude Include="..\..\code\renderer\smaa_area_texture.h" />
     <ClInclude Include="..\..\code\renderer\smaa_search_texture.h" />
+    <ClInclude Include="..\..\code\renderer\srp_local.h" />
     <ClInclude Include="..\..\code\renderer\stb_image.h" />
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+    <ClCompile Include="..\..\code\renderer\crp_dof_accum.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_dof_gather.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_fog.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_geometry.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_main.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_opaque.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_tone_map.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_transp_draw.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_transp_resolve.cpp" />
+    <ClCompile Include="..\..\code\renderer\grp_geometry.cpp" />
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     <ClCompile Include="..\..\code\renderer\grp_world.cpp" />
     <ClCompile Include="..\..\code\renderer\rhi_d3d12.cpp" />
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+    <ClCompile Include="..\..\code\renderer\srp_main.cpp" />
+    <ClCompile Include="..\..\code\renderer\srp_mip_gen.cpp" />
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     </FxCompile>
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     </FxCompile>
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     </FxCompile>
-    <FxCompile Include="..\..\code\renderer\hlsl\mip_1.hlsl">
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       <ExcludedFromBuild>true</ExcludedFromBuild>
     </FxCompile>
-    <FxCompile Include="..\..\code\renderer\hlsl\mip_3.hlsl">
+    <FxCompile Include="..\..\code\renderer\shaders\crp\gatherdof_coc_tile_gen.hlsl">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </FxCompile>
-    <FxCompile Include="..\..\code\renderer\hlsl\nuklear.hlsl">
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       <ExcludedFromBuild>true</ExcludedFromBuild>
     </FxCompile>
-    <FxCompile Include="..\..\code\renderer\hlsl\post_gamma.hlsl">
+    <FxCompile Include="..\..\code\renderer\shaders\crp\gatherdof_combine.hlsl">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </FxCompile>
-    <FxCompile Include="..\..\code\renderer\hlsl\post_inverse_gamma.hlsl">
+    <FxCompile Include="..\..\code\renderer\shaders\crp\gatherdof_debug.hlsl">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </FxCompile>
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       <ExcludedFromBuild>true</ExcludedFromBuild>
     </FxCompile>
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-    <FxCompile Include="..\..\code\renderer\hlsl\ui.hlsl">
+    <FxCompile Include="..\..\code\renderer\shaders\crp\mip_2.hlsl">
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+    <FxCompile Include="..\..\code\renderer\shaders\crp\mip_3.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\crp\nuklear.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\crp\opaque.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\crp\tone_map.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\crp\tone_map_inverse.hlsl">
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+    <FxCompile Include="..\..\code\renderer\shaders\crp\transp_draw.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\crp\transp_resolve.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\crp\ui.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\depth_pre_pass.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\dynamic_light.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\fog_inside.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\fog_outside.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\imgui.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\mip_1.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\mip_2.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\mip_3.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
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+    <FxCompile Include="..\..\code\renderer\shaders\grp\nuklear.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\post_gamma.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\post_inverse_gamma.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\smaa_1.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\smaa_2.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\smaa_3.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\uber_shader.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\ui.hlsl">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </FxCompile>
   </ItemGroup>
   <ItemGroup>
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+    <None Include="..\..\code\renderer\shaders\common\blend.hlsli" />
-    <None Include="..\..\code\renderer\hlsl\shared.hlsli" />
+    <None Include="..\..\code\renderer\shaders\common\mip_gen.hlsli" />
-    <None Include="..\..\code\renderer\hlsl\smaa.hlsli" />
+    <None Include="..\..\code\renderer\shaders\common\state_bits.h.hlsli" />
+    <None Include="..\..\code\renderer\shaders\crp\common.hlsli" />
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+    <None Include="..\..\code\renderer\shaders\crp\gatherdof.hlsli" />
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+    <None Include="..\..\code\renderer\shaders\crp\world.hlsli" />
+    <None Include="..\..\code\renderer\shaders\grp\fog.hlsli" />
+    <None Include="..\..\code\renderer\shaders\grp\shared.hlsli" />
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makefiles/windows_vs2019/renderer.vcxproj.filters

@@ -1,34 +1,56 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
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+    <Filter Include="shaders">
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+    <Filter Include="shaders\common">
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     </Filter>
   </ItemGroup>
   <ItemGroup>
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     <ClInclude Include="..\..\code\renderer\grp_local.h" />
+    <ClInclude Include="..\..\code\renderer\grp_uber_shaders.h" />
     <ClInclude Include="..\..\code\renderer\rhi_local.h" />
     <ClInclude Include="..\..\code\renderer\rhi_public.h" />
     <ClInclude Include="..\..\code\renderer\smaa_area_texture.h" />
     <ClInclude Include="..\..\code\renderer\smaa_search_texture.h" />
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     <ClInclude Include="..\..\code\renderer\stb_image.h" />
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+    <ClCompile Include="..\..\code\renderer\crp_dof_gather.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_fog.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_geometry.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_main.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_opaque.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_tone_map.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_transp_draw.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_transp_resolve.cpp" />
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     <ClCompile Include="..\..\code\renderer\rhi_d3d12.cpp" />
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+      <Filter>shaders\crp</Filter>
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+    <FxCompile Include="..\..\code\renderer\shaders\crp\tone_map.hlsl">
+      <Filter>shaders\crp</Filter>
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+    <FxCompile Include="..\..\code\renderer\shaders\crp\tone_map_inverse.hlsl">
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+    <FxCompile Include="..\..\code\renderer\shaders\grp\depth_pre_pass.hlsl">
+      <Filter>shaders\grp</Filter>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\dynamic_light.hlsl">
+      <Filter>shaders\grp</Filter>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\fog_inside.hlsl">
+      <Filter>shaders\grp</Filter>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\fog_outside.hlsl">
+      <Filter>shaders\grp</Filter>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\imgui.hlsl">
+      <Filter>shaders\grp</Filter>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\mip_1.hlsl">
+      <Filter>shaders\grp</Filter>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\mip_2.hlsl">
+      <Filter>shaders\grp</Filter>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\mip_3.hlsl">
+      <Filter>shaders\grp</Filter>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\nuklear.hlsl">
+      <Filter>shaders\grp</Filter>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\post_gamma.hlsl">
+      <Filter>shaders\grp</Filter>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\post_inverse_gamma.hlsl">
+      <Filter>shaders\grp</Filter>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\smaa_1.hlsl">
+      <Filter>shaders\grp</Filter>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\smaa_2.hlsl">
+      <Filter>shaders\grp</Filter>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\smaa_3.hlsl">
+      <Filter>shaders\grp</Filter>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\uber_shader.hlsl">
+      <Filter>shaders\grp</Filter>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\ui.hlsl">
+      <Filter>shaders\grp</Filter>
     </FxCompile>
   </ItemGroup>
   <ItemGroup>
-    <None Include="..\..\code\renderer\hlsl\fog.hlsli">
+    <None Include="..\..\code\renderer\shaders\common\blend.hlsli">
-      <Filter>hlsl</Filter>
+      <Filter>shaders\common</Filter>
     </None>
-    <None Include="..\..\code\renderer\hlsl\shared.hlsli">
+    <None Include="..\..\code\renderer\shaders\common\mip_gen.hlsli">
-      <Filter>hlsl</Filter>
+      <Filter>shaders\common</Filter>
     </None>
-    <None Include="..\..\code\renderer\hlsl\smaa.hlsli">
+    <None Include="..\..\code\renderer\shaders\common\state_bits.h.hlsli">
-      <Filter>hlsl</Filter>
+      <Filter>shaders\common</Filter>
+    </None>
+    <None Include="..\..\code\renderer\shaders\crp\common.hlsli">
+      <Filter>shaders\crp</Filter>
+    </None>
+    <None Include="..\..\code\renderer\shaders\crp\dof.hlsli">
+      <Filter>shaders\crp</Filter>
+    </None>
+    <None Include="..\..\code\renderer\shaders\crp\fog.hlsli">
+      <Filter>shaders\crp</Filter>
+    </None>
+    <None Include="..\..\code\renderer\shaders\crp\gatherdof.hlsli">
+      <Filter>shaders\crp</Filter>
+    </None>
+    <None Include="..\..\code\renderer\shaders\crp\oit.h.hlsli">
+      <Filter>shaders\crp</Filter>
+    </None>
+    <None Include="..\..\code\renderer\shaders\crp\world.h.hlsli">
+      <Filter>shaders\crp</Filter>
+    </None>
+    <None Include="..\..\code\renderer\shaders\crp\world.hlsli">
+      <Filter>shaders\crp</Filter>
+    </None>
+    <None Include="..\..\code\renderer\shaders\grp\fog.hlsli">
+      <Filter>shaders\grp</Filter>
+    </None>
+    <None Include="..\..\code\renderer\shaders\grp\shared.hlsli">
+      <Filter>shaders\grp</Filter>
+    </None>
+    <None Include="..\..\code\renderer\shaders\grp\smaa.hlsli">
+      <Filter>shaders\grp</Filter>
     </None>
   </ItemGroup>
 </Project>

makefiles/windows_vs2019/shadercomp.vcxproj

@@ -72,13 +72,12 @@
     <Link>
       <SubSystem>Console</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
+      <AdditionalDependencies>Shlwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <AdditionalLibraryDirectories>..\..\.build\debug;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
       <AdditionalOptions> %(AdditionalOptions)</AdditionalOptions>
     </Link>
     <PostBuildEvent>
-      <Command>copy /B /Y "$(TargetDir)\$(TargetName).exe" "..\..\code\renderer\hlsl"
+      <Command>$(TargetPath)</Command>
-copy /B /Y "$(TargetDir)\$(TargetName).pdb" "..\..\code\renderer\hlsl"
-"../../code/renderer/hlsl/$(TargetFileName)"</Command>
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='release|x64'">
@@ -107,13 +106,12 @@ copy /B /Y "$(TargetDir)\$(TargetName).pdb" "..\..\code\renderer\hlsl"
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
+      <AdditionalDependencies>Shlwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <AdditionalLibraryDirectories>..\..\.build\release;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
       <AdditionalOptions> %(AdditionalOptions)</AdditionalOptions>
     </Link>
     <PostBuildEvent>
-      <Command>copy /B /Y "$(TargetDir)\$(TargetName).exe" "..\..\code\renderer\hlsl"
+      <Command>$(TargetPath)</Command>
-copy /B /Y "$(TargetDir)\$(TargetName).pdb" "..\..\code\renderer\hlsl"
-"../../code/renderer/hlsl/$(TargetFileName)"</Command>
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemGroup>

makefiles/windows_vs2022/cnq3.vcxproj

@@ -201,16 +201,18 @@ copy "..\..\.bin\release\cnq3.pdb" "$(QUAKE3DIR)"</Command>
     <ClInclude Include="..\..\code\qcommon\vm_local.h" />
     <ClInclude Include="..\..\code\qcommon\vm_shim.h" />
     <ClInclude Include="..\..\code\renderer\D3D12MemAlloc.h" />
+    <ClInclude Include="..\..\code\renderer\crp_local.h" />
     <ClInclude Include="..\..\code\renderer\grp_local.h" />
+    <ClInclude Include="..\..\code\renderer\grp_uber_shaders.h" />
     <ClInclude Include="..\..\code\renderer\rhi_local.h" />
     <ClInclude Include="..\..\code\renderer\rhi_public.h" />
     <ClInclude Include="..\..\code\renderer\smaa_area_texture.h" />
     <ClInclude Include="..\..\code\renderer\smaa_search_texture.h" />
+    <ClInclude Include="..\..\code\renderer\srp_local.h" />
     <ClInclude Include="..\..\code\renderer\stb_image.h" />
     <ClInclude Include="..\..\code\renderer\tr_help.h" />
     <ClInclude Include="..\..\code\renderer\tr_local.h" />
     <ClInclude Include="..\..\code\renderer\tr_public.h" />
-    <ClInclude Include="..\..\code\renderer\uber_shaders.h" />
     <ClInclude Include="..\..\code\server\server.h" />
     <ClInclude Include="..\..\code\win32\resource.h" />
     <ClInclude Include="..\..\code\win32\win_help.h" />
@@ -290,6 +292,9 @@ copy "..\..\.bin\release\cnq3.pdb" "$(QUAKE3DIR)"</Command>
     <ClCompile Include="..\..\code\win32\win_syscon.cpp" />
     <ClCompile Include="..\..\code\win32\win_wndproc.cpp" />
   </ItemGroup>
+  <ItemGroup>
+    <None Include="..\premake5.lua" />
+  </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="botlib.vcxproj">
       <Project>{A1A792F4-8D49-BDCA-7604-D11E6245441B}</Project>

makefiles/windows_vs2022/cnq3.vcxproj.filters

@@ -243,9 +243,15 @@
     <ClInclude Include="..\..\code\renderer\D3D12MemAlloc.h">
       <Filter>renderer</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\code\renderer\crp_local.h">
+      <Filter>renderer</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\code\renderer\grp_local.h">
       <Filter>renderer</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\code\renderer\grp_uber_shaders.h">
+      <Filter>renderer</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\code\renderer\rhi_local.h">
       <Filter>renderer</Filter>
     </ClInclude>
@@ -258,6 +264,9 @@
     <ClInclude Include="..\..\code\renderer\smaa_search_texture.h">
       <Filter>renderer</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\code\renderer\srp_local.h">
+      <Filter>renderer</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\code\renderer\stb_image.h">
       <Filter>renderer</Filter>
     </ClInclude>
@@ -270,9 +279,6 @@
     <ClInclude Include="..\..\code\renderer\tr_public.h">
       <Filter>renderer</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\code\renderer\uber_shaders.h">
-      <Filter>renderer</Filter>
-    </ClInclude>
     <ClInclude Include="..\..\code\server\server.h">
       <Filter>server</Filter>
     </ClInclude>
@@ -504,4 +510,7 @@
       <Filter>win32</Filter>
     </ClCompile>
   </ItemGroup>
+  <ItemGroup>
+    <None Include="..\premake5.lua" />
+  </ItemGroup>
 </Project>

makefiles/windows_vs2022/renderer.vcxproj

@@ -114,28 +114,41 @@
   </ItemDefinitionGroup>
   <ItemGroup>
     <ClInclude Include="..\..\code\renderer\D3D12MemAlloc.h" />
+    <ClInclude Include="..\..\code\renderer\crp_local.h" />
     <ClInclude Include="..\..\code\renderer\grp_local.h" />
+    <ClInclude Include="..\..\code\renderer\grp_uber_shaders.h" />
     <ClInclude Include="..\..\code\renderer\rhi_local.h" />
     <ClInclude Include="..\..\code\renderer\rhi_public.h" />
     <ClInclude Include="..\..\code\renderer\smaa_area_texture.h" />
     <ClInclude Include="..\..\code\renderer\smaa_search_texture.h" />
+    <ClInclude Include="..\..\code\renderer\srp_local.h" />
     <ClInclude Include="..\..\code\renderer\stb_image.h" />
     <ClInclude Include="..\..\code\renderer\tr_help.h" />
     <ClInclude Include="..\..\code\renderer\tr_local.h" />
     <ClInclude Include="..\..\code\renderer\tr_public.h" />
-    <ClInclude Include="..\..\code\renderer\uber_shaders.h" />
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\..\code\renderer\D3D12MemAlloc.cpp" />
-    <ClCompile Include="..\..\code\renderer\grp_imgui.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_dof_accum.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_dof_gather.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_fog.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_geometry.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_main.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_opaque.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_tone_map.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_transp_draw.cpp" />
+    <ClCompile Include="..\..\code\renderer\crp_transp_resolve.cpp" />
+    <ClCompile Include="..\..\code\renderer\grp_geometry.cpp" />
     <ClCompile Include="..\..\code\renderer\grp_main.cpp" />
-    <ClCompile Include="..\..\code\renderer\grp_mip_gen.cpp" />
-    <ClCompile Include="..\..\code\renderer\grp_nuklear.cpp" />
     <ClCompile Include="..\..\code\renderer\grp_post.cpp" />
     <ClCompile Include="..\..\code\renderer\grp_smaa.cpp" />
-    <ClCompile Include="..\..\code\renderer\grp_ui.cpp" />
     <ClCompile Include="..\..\code\renderer\grp_world.cpp" />
     <ClCompile Include="..\..\code\renderer\rhi_d3d12.cpp" />
+    <ClCompile Include="..\..\code\renderer\srp_imgui.cpp" />
+    <ClCompile Include="..\..\code\renderer\srp_main.cpp" />
+    <ClCompile Include="..\..\code\renderer\srp_mip_gen.cpp" />
+    <ClCompile Include="..\..\code\renderer\srp_nuklear.cpp" />
+    <ClCompile Include="..\..\code\renderer\srp_ui.cpp" />
     <ClCompile Include="..\..\code\renderer\stb_image.cpp" />
     <ClCompile Include="..\..\code\renderer\tr_backend.cpp" />
     <ClCompile Include="..\..\code\renderer\tr_bsp.cpp" />
@@ -161,59 +174,141 @@
     <ClCompile Include="..\..\code\renderer\tr_world.cpp" />
   </ItemGroup>
   <ItemGroup>
-    <FxCompile Include="..\..\code\renderer\hlsl\depth_pre_pass.hlsl">
+    <FxCompile Include="..\..\code\renderer\shaders\crp\accumdof_accum.hlsl">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </FxCompile>
-    <FxCompile Include="..\..\code\renderer\hlsl\dynamic_light.hlsl">
+    <FxCompile Include="..\..\code\renderer\shaders\crp\accumdof_debug.hlsl">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </FxCompile>
-    <FxCompile Include="..\..\code\renderer\hlsl\fog_inside.hlsl">
+    <FxCompile Include="..\..\code\renderer\shaders\crp\accumdof_norm.hlsl">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </FxCompile>
-    <FxCompile Include="..\..\code\renderer\hlsl\fog_outside.hlsl">
+    <FxCompile Include="..\..\code\renderer\shaders\crp\blit.hlsl">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </FxCompile>
-    <FxCompile Include="..\..\code\renderer\hlsl\imgui.hlsl">
+    <FxCompile Include="..\..\code\renderer\shaders\crp\fog_inside.hlsl">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </FxCompile>
-    <FxCompile Include="..\..\code\renderer\hlsl\mip_1.hlsl">
+    <FxCompile Include="..\..\code\renderer\shaders\crp\fog_outside.hlsl">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </FxCompile>
-    <FxCompile Include="..\..\code\renderer\hlsl\mip_2.hlsl">
+    <FxCompile Include="..\..\code\renderer\shaders\crp\gatherdof_blur.hlsl">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </FxCompile>
-    <FxCompile Include="..\..\code\renderer\hlsl\mip_3.hlsl">
+    <FxCompile Include="..\..\code\renderer\shaders\crp\gatherdof_coc_tile_gen.hlsl">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </FxCompile>
-    <FxCompile Include="..\..\code\renderer\hlsl\nuklear.hlsl">
+    <FxCompile Include="..\..\code\renderer\shaders\crp\gatherdof_coc_tile_max.hlsl">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </FxCompile>
-    <FxCompile Include="..\..\code\renderer\hlsl\post_gamma.hlsl">
+    <FxCompile Include="..\..\code\renderer\shaders\crp\gatherdof_combine.hlsl">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </FxCompile>
-    <FxCompile Include="..\..\code\renderer\hlsl\post_inverse_gamma.hlsl">
+    <FxCompile Include="..\..\code\renderer\shaders\crp\gatherdof_debug.hlsl">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </FxCompile>
-    <FxCompile Include="..\..\code\renderer\hlsl\smaa_1.hlsl">
+    <FxCompile Include="..\..\code\renderer\shaders\crp\gatherdof_fill.hlsl">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </FxCompile>
-    <FxCompile Include="..\..\code\renderer\hlsl\smaa_2.hlsl">
+    <FxCompile Include="..\..\code\renderer\shaders\crp\gatherdof_split.hlsl">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </FxCompile>
-    <FxCompile Include="..\..\code\renderer\hlsl\smaa_3.hlsl">
+    <FxCompile Include="..\..\code\renderer\shaders\crp\imgui.hlsl">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </FxCompile>
-    <FxCompile Include="..\..\code\renderer\hlsl\uber_shader.hlsl">
+    <FxCompile Include="..\..\code\renderer\shaders\crp\mip_1.hlsl">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </FxCompile>
-    <FxCompile Include="..\..\code\renderer\hlsl\ui.hlsl">
+    <FxCompile Include="..\..\code\renderer\shaders\crp\mip_2.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\crp\mip_3.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\crp\nuklear.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\crp\opaque.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\crp\tone_map.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\crp\tone_map_inverse.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\crp\transp_draw.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\crp\transp_resolve.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\crp\ui.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\depth_pre_pass.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\dynamic_light.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\fog_inside.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\fog_outside.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\imgui.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\mip_1.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\mip_2.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\mip_3.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\nuklear.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\post_gamma.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\post_inverse_gamma.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\smaa_1.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\smaa_2.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\smaa_3.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\uber_shader.hlsl">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </FxCompile>
+    <FxCompile Include="..\..\code\renderer\shaders\grp\ui.hlsl">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </FxCompile>
   </ItemGroup>
   <ItemGroup>
-    <None Include="..\..\code\renderer\hlsl\fog.hlsli" />
+    <None Include="..\..\code\renderer\shaders\common\blend.hlsli" />
-    <None Include="..\..\code\renderer\hlsl\shared.hlsli" />
+    <None Include="..\..\code\renderer\shaders\common\mip_gen.hlsli" />
-    <None Include="..\..\code\renderer\hlsl\smaa.hlsli" />
+    <None Include="..\..\code\renderer\shaders\common\state_bits.h.hlsli" />
+    <None Include="..\..\code\renderer\shaders\crp\common.hlsli" />
+    <None Include="..\..\code\renderer\shaders\crp\dof.hlsli" />
+    <None Include="..\..\code\renderer\shaders\crp\fog.hlsli" />
+    <None Include="..\..\code\renderer\shaders\crp\gatherdof.hlsli" />
+    <None Include="..\..\code\renderer\shaders\crp\oit.h.hlsli" />
+    <None Include="..\..\code\renderer\shaders\crp\world.h.hlsli" />
+    <None Include="..\..\code\renderer\shaders\crp\world.hlsli" />
+    <None Include="..\..\code\renderer\shaders\grp\fog.hlsli" />
+    <None Include="..\..\code\renderer\shaders\grp\shared.hlsli" />
+    <None Include="..\..\code\renderer\shaders\grp\smaa.hlsli" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">