mirror of https://bitbucket.org/CPMADevs/cnq3
76 lines
2.4 KiB
HLSL
76 lines
2.4 KiB
HLSL
/*
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===========================================================================
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Copyright (C) 2024 Gian 'myT' Schellenbaum
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This file is part of Challenge Quake 3 (CNQ3).
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Challenge Quake 3 is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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Challenge Quake 3 is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
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===========================================================================
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*/
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// accumulation depth of field: debug overlay
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#include "common.hlsli"
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#include "fullscreen.hlsli"
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#include "dof.hlsli"
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#include "scene_view.h.hlsli"
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cbuffer RootConstants
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{
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matrix mvp; // displaced view, to project to CS
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matrix invMvp; // main view, to unproject to WS
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uint colorTextureIndex;
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uint depthTextureIndex;
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uint debugMode; // 1: colorized coc, 2: constant intensity far field
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int tcScale;
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float focusDist;
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float maxNearCocCS;
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float maxFarCocCS;
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};
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float4 ps(VOut input) : SV_Target
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{
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SceneView scene = GetSceneView();
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Texture2D colorTexture = ResourceDescriptorHeap[colorTextureIndex];
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Texture2D<float> depthTexture = ResourceDescriptorHeap[depthTextureIndex];
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int3 tcColor = int3(input.position.xy, 0);
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int3 tcDepth = int3(input.position.xy / tcScale, 0);
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float3 color = colorTexture.Load(tcColor).rgb;
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float depthZW = depthTexture.Load(tcDepth);
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float depth = scene.LinearDepth(depthZW);
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bool nearField = depth < focusDist;
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float4 result;
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if(debugMode == 1)
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{
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float quadPosXCS = input.texCoords.x * 2.0 - 1.0;
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float quadPosYCS = (1.0 - input.texCoords.y) * 2.0 - 1.0;
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float4 positionWS = mul(invMvp, float4(quadPosXCS, quadPosYCS, depthZW, 1));
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float4 positionCS = mul(mvp, float4(positionWS.xyz / positionWS.w, 1));
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float coc = distance(positionCS.xy / positionCS.w, float2(quadPosXCS, quadPosYCS));
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result = DOF_DebugCoc(color, nearField, saturate(coc / maxNearCocCS), saturate(coc / maxFarCocCS));
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}
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else if(debugMode == 2)
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{
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result = DOF_DebugFocusPlane(color, nearField);
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}
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else
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{
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result = float4(color, 1);
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}
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return result;
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}
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