- voxel rendering.

The stock voxels of Blood and SW seem to work so far, but not all edge cases have been tested.

source/CMakeLists.txt

@@ -1023,7 +1023,6 @@ set (PCH_SOURCES
 	glbackend/glbackend.cpp
 	glbackend/gl_palmanager.cpp
 	glbackend/gl_texture.cpp
-	glbackend/gl_models.cpp
 
 	thirdparty/src/md4.cpp
 
@@ -1073,6 +1072,7 @@ set (PCH_SOURCES
 	core/gi.cpp
 
 	core/rendering/hw_entrypoint.cpp
+	core/rendering/hw_models.cpp
 	core/rendering/scene/hw_clipper.cpp
 	core/rendering/scene/hw_walls.cpp
 	core/rendering/scene/hw_flats.cpp

source/build/src/voxmodel.cpp

@@ -12,7 +12,7 @@
 #include "hw_renderstate.h"
 #include "texturemanager.h"
 #include "voxels.h"
-#include "glbackend/gl_models.h"
+#include "hw_models.h"
 #include "printf.h"
 
 #include "palette.h"

source/common/utility/matrix.h

@@ -33,9 +33,7 @@ class VSMatrix {
 
 	public:
 
-		VSMatrix()
-		{
-		}
+		VSMatrix() = default;
 		
 		VSMatrix(int)
 		{

source/core/rendering/hw_models.cpp

@@ -6,7 +6,7 @@
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
+// the Free Software Foundation, either version 2 of the License, or
 // (at your option) any later version.
 //
 // This program is distributed in the hope that it will be useful,
@@ -33,7 +33,7 @@
 #include "hwrenderer/data/buffers.h"
 #include "flatvertices.h"
 #include "hw_renderstate.h"
-#include "gl_models.h"
+#include "hw_models.h"
 
 //CVAR(Bool, gl_light_models, true, CVAR_ARCHIVE)
 

source/core/rendering/hw_models.h

@@ -6,7 +6,7 @@
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
+// the Free Software Foundation, either version 2 of the License, or
 // (at your option) any later version.
 //
 // This program is distributed in the hope that it will be useful,

source/core/rendering/scene/hw_drawinfo.cpp

@@ -303,14 +303,14 @@ void HWDrawInfo::DispatchSprites()
 			{
 				if ((tspr->cstat & CSTAT_SPRITE_ALIGNMENT) != CSTAT_SPRITE_ALIGNMENT_SLAB && tiletovox[tspr->picnum] >= 0 && voxmodels[tiletovox[tspr->picnum]])
 				{
-					//HWSprite hwsprite;
-					//if (hwsprite.ProcessVoxel(voxmodels[tiletovox[tspr->picnum]], tspr)) return;
+					HWSprite hwsprite;
+					if (hwsprite.ProcessVoxel(this, voxmodels[tiletovox[tspr->picnum]], tspr, &sector[tspr->sectnum])) return;
 					break;
 				}
 				else if ((tspr->cstat & CSTAT_SPRITE_ALIGNMENT) == CSTAT_SPRITE_ALIGNMENT_SLAB && tspr->picnum < MAXVOXELS && voxmodels[tspr->picnum])
 				{
-					//HWSprite hwsprite;
-					//hwsprite.ProcessVoxel(voxmodels[tspr->picnum], tspr);
+					HWSprite hwsprite;
+					hwsprite.ProcessVoxel(this, voxmodels[tspr->picnum], tspr, &sector[tspr->sectnum]);
 					break;
 				}
 			}

source/core/rendering/scene/hw_drawstructs.h

@@ -10,6 +10,7 @@
 #include "build.h"
 #include "gamefuncs.h"
 #include "render.h"
+#include "matrix.h"
 
 #ifdef _MSC_VER
 #pragma warning(disable:4244)
@@ -292,7 +293,8 @@ public:
 	int shade, palette, visibility;
 	float alpha;
 	FRenderStyle RenderStyle;
-	int modelframe; // : sprite, 1: model, <0:voxel index
+	int modelframe; // : sprite, 1: model, -1:voxel
+	voxmodel_t* voxel;
 
 	int index;
 	float depth;
@@ -300,10 +302,17 @@ public:
 
 	float x,y,z;	// needed for sorting!
 
-	float ul,ur;
-	float vt,vb;
-	float x1,y1,z1;
-	float x2,y2,z2;
+	union
+	{
+		struct
+		{
+			float ul, ur;
+			float vt, vb;
+			float x1, y1, z1;
+			float x2, y2, z2;
+		};
+		VSMatrix rotmat;
+	};
 	int dynlightindex;
 
 	FGameTexture *texture;
@@ -317,6 +326,7 @@ public:
 	void CreateVertices(HWDrawInfo* di);
 	void PutSprite(HWDrawInfo *di, bool translucent);
 	void Process(HWDrawInfo *di, spritetype* thing,sectortype * sector, int thruportal = false);
+	bool ProcessVoxel(HWDrawInfo* di, voxmodel_t* voxel, spritetype* tspr, sectortype* sector);
 
 	void DrawSprite(HWDrawInfo* di, FRenderState& state, bool translucent);
 };

source/core/rendering/scene/hw_sprites.cpp

@@ -42,6 +42,8 @@
 #include "hw_dynlightdata.h"
 #include "hw_lightbuffer.h"
 #include "hw_renderstate.h"
+#include "hw_models.h"
+#include "hw_viewpointbuffer.h"
 
 extern PalEntry GlobalMapFog;
 extern float GlobalFogDensity;
@@ -142,11 +144,9 @@ void HWSprite::DrawSprite(HWDrawInfo* di, FRenderState& state, bool translucent)
 	// The shade rgb from the tint is ignored here.
 	state.SetColorAlpha(color, alpha);
 
-	state.SetMaterial(texture, UF_Texture, 0, CLAMP_XY, TRANSLATION(Translation_Remap + curbasepal, palette), -1);
-
-
-	if (!modelframe)
+	if (modelframe == 0)
 	{
+		state.SetMaterial(texture, UF_Texture, 0, CLAMP_XY, TRANSLATION(Translation_Remap + curbasepal, palette), -1);
 		state.SetNormal(0, 0, 0);
 
 
@@ -170,9 +170,27 @@ void HWSprite::DrawSprite(HWDrawInfo* di, FRenderState& state, bool translucent)
 	}
 	else
 	{
-		//FHWModelRenderer renderer(di, state, dynlightindex);
-		//RenderModel(&renderer, x, y, z, modelframe, actor, di->Viewpoint.TicFrac);
-		//state.SetVertexBuffer(screen->mVertexData);
+		state.EnableModelMatrix(true);
+		state.mModelMatrix = rotmat;
+		FHWModelRenderer mr(state, dynlightindex);
+		if (modelframe < 0)
+		{
+			auto model = voxel->model;
+			state.SetDepthFunc(DF_LEqual);
+			state.EnableTexture(true);
+			model->BuildVertexBuffer(&mr);
+			mr.SetupFrame(model, 0, 0, 0);
+			model->RenderFrame(&mr, TexMan.GetGameTexture(model->GetPaletteTexture()), 0, 0, 0.f, TRANSLATION(Translation_Remap + curbasepal, palette));
+			state.SetDepthFunc(DF_Less);
+			state.SetVertexBuffer(screen->mVertexData);
+
+		}
+		else
+		{
+			//RenderModel(&renderer, x, y, z, modelframe, actor, di->Viewpoint.TicFrac);
+		}
+		state.SetVertexBuffer(screen->mVertexData);
+		state.EnableModelMatrix(false);
 	}
 
 	if (translucent)
@@ -443,3 +461,104 @@ void HWSprite::Process(HWDrawInfo* di, spritetype* spr, sectortype* sector, int
 	rendered_sprites++;
 }
 
+
+//==========================================================================
+//
+// 
+//
+//==========================================================================
+
+bool HWSprite::ProcessVoxel(HWDrawInfo* di, voxmodel_t* vox, spritetype* spr, sectortype* sector)
+{
+	sprite = spr;
+
+	texture = nullptr;
+	modelframe = -1;
+	dynlightindex = -1;
+	shade = spr->shade;
+	palette = spr->pal;
+	fade = lookups.getFade(sector->floorpal);	// fog is per sector.
+	visibility = sectorVisibility(sector);
+	voxel = vox;
+
+	if (!vox || (spr->cstat & CSTAT_SPRITE_ALIGNMENT) == CSTAT_SPRITE_ALIGNMENT_FLOOR) return false;
+
+	bool trans = (spr->cstat & CSTAT_SPRITE_TRANSLUCENT);
+	if (trans)
+	{
+		RenderStyle = GetRenderStyle(0, !!(spr->cstat & CSTAT_SPRITE_TRANSLUCENT_INVERT));
+		alpha = GetAlphaFromBlend((spr->cstat & CSTAT_SPRITE_TRANSLUCENT_INVERT) ? DAMETH_TRANS2 : DAMETH_TRANS1, 0);
+	}
+	else
+	{
+		RenderStyle = LegacyRenderStyles[STYLE_Translucent];
+		alpha = 1.f;
+	}
+
+	auto sprext = &spriteext[spr->owner];
+
+	FVector3 scalevec = { voxel->scale, voxel->scale, voxel->scale };
+	FVector3 translatevec = { 0, 0, voxel->zadd * voxel->scale };
+
+	float basescale = voxel->bscale / 64.f;
+	float sprxscale = (float)spr->xrepeat * (256.f / 320.f) * basescale;
+	if ((::sprite[spr->owner].cstat & CSTAT_SPRITE_ALIGNMENT) == CSTAT_SPRITE_ALIGNMENT_WALL)
+	{
+		sprxscale *= 1.25f;
+		translatevec.Y -= spr->xoffset * bcosf(sprext->angoff, -20);
+		translatevec.X += spr->xoffset * bsinf(sprext->angoff, -20);
+	}
+
+	if (spr->cstat & CSTAT_SPRITE_YFLIP) 
+	{ 
+		scalevec.Z = -scalevec.Z; 
+		translatevec.Z = -translatevec.Z; 
+	}
+	if (spr->cstat & CSTAT_SPRITE_XFLIP)
+	{
+		scalevec.X = -scalevec.X;
+		translatevec.X = -translatevec.X;
+		translatevec.Y = -translatevec.Y;
+	}
+
+	scalevec.X *= sprxscale; 
+	translatevec.X *= sprxscale; 
+	scalevec.Y *= sprxscale; 
+	translatevec.Y *= sprxscale;
+	float sprzscale = (float)spr->yrepeat * basescale;
+	scalevec.Z *= sprzscale; 
+	translatevec.Z *= sprzscale;
+
+	float zpos = (float)(spr->z + sprext->position_offset.z);
+	float zscale = ((spr->cstat & CSTAT_SPRITE_YFLIP) && (::sprite[spr->owner].cstat & CSTAT_SPRITE_ALIGNMENT) != 0) ? -4.f : 4.f;
+	zpos -= (spr->yoffset * spr->yrepeat) * zscale * voxel->bscale;
+
+	x = (spr->x + sprext->position_offset.x) * (1 / 16.f);
+	z = zpos * (1 / -256.f);
+	y = (spr->y + sprext->position_offset.y) * (1 / -16.f);
+
+	float zoff = voxel->siz.z * .5f;
+	if (!(spr->cstat & CSTAT_SPRITE_YCENTER))
+		zoff += voxel->piv.z;
+	else if ((spr->cstat & CSTAT_SPRITE_ALIGNMENT) != CSTAT_SPRITE_ALIGNMENT_SLAB)
+	{
+		zoff += voxel->piv.z;
+		zoff -= voxel->siz.z * .5f;
+	}
+	if (spr->cstat & CSTAT_SPRITE_YFLIP) zoff = voxel->siz.z - zoff;
+
+	rotmat.loadIdentity();
+	rotmat.translate(x + translatevec.X, z - translatevec.Z, y - translatevec.Y);
+	rotmat.rotate(buildang(spr->ang).asdeg() - 90.f, 0, 1, 0);
+	rotmat.scale(scalevec.X, scalevec.Z, scalevec.Y);
+	// Apply pivot last
+	rotmat.translate(-voxel->piv.x, zoff, voxel->piv.y);
+
+
+
+	auto vp = di->Viewpoint;
+	depth = (float)((x - vp.Pos.X) * vp.TanCos + (y - vp.Pos.Y) * vp.TanSin);
+	PutSprite(di, alpha < 1.f - FLT_EPSILON);
+	rendered_sprites++;
+	return true;
+}

source/glbackend/glbackend.cpp

@@ -49,7 +49,7 @@
 #include "hw_renderstate.h"
 #include "hw_cvars.h"
 #include "gamestruct.h"
-#include "gl_models.h"
+#include "hw_models.h"
 #include "gamefuncs.h"
 
 CVARD(Bool, hw_hightile, true, CVAR_ARCHIVE | CVAR_GLOBALCONFIG, "enable/disable hightile texture rendering")
@@ -136,7 +136,7 @@ void GLInstance::DoDraw()
 					state.SetDepthFunc(DF_LEqual);
 					state.EnableTexture(true);
 					rs.model->BuildVertexBuffer(&mr);
-					mr.SetupFrame(rs.model, rs.mframes[0], rs.mframes[1], rs.mfactor);
+					mr.SetupFrame(rs.model, rs.mframes[0], rs.mframes[1], 0);
 					rs.model->RenderFrame(&mr, rs.mMaterial.mTexture, rs.mframes[0], rs.mframes[1], 0.f, rs.mMaterial.mTranslation);
 					state.SetDepthFunc(DF_Less);
 					state.SetVertexBuffer(screen->mVertexData);