mirror of
https://bitbucket.org/CPMADevs/cnq3
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39 lines
1.4 KiB
HLSL
39 lines
1.4 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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// fog volume (AABB) seen from inside
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#include "common.hlsli"
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#include "fog.hlsli"
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float4 ps(VOut input) : SV_Target
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{
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Texture2D<float> depthTexture = ResourceDescriptorHeap[depthTextureIndex];
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float depthZW = depthTexture.Load(int3(input.position.xy, 0));
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float depthBuff = LinearDepth(depthZW, linearDepthA, linearDepthB);
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float depthFrag = input.depthVS;
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float depthMin = min(depthBuff, depthFrag);
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float fogOpacity = saturate(depthMin / depth);
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float4 result = float4(color.rgb, fogOpacity);
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return result;
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}
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