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tweaked GRP fog curve to match the original better

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myT 2024-10-01 18:15:24 +02:00
parent 779b6dad92
commit a02057425a
3 changed files with 14 additions and 2 deletions
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10
code/renderer/shaders/grp/fog.hlsli
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@ -64,4 +64,14 @@ cbuffer RootConstants
Texture2D depthTexture : register(t0);
float FogOpacityFromDistance01(float x)
{
if(x >= 1.0)
{
return 1.0;
}
return 1.0 - exp2(-10.0 * x);
}
#endif

3
code/renderer/shaders/grp/fog_inside.hlsl
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@ -33,7 +33,8 @@ float4 ps(VOut input) : SV_Target
float depthBuff = LinearDepth(zwDepth, input.proj2232.x, input.proj2232.y);
float depthFrag = input.depthVS;
float depth = min(depthBuff, depthFrag);
float fogOpacity = saturate(depth / colorDepth.w);
float distance01 = saturate(depth / colorDepth.w);
float fogOpacity = FogOpacityFromDistance01(distance01);
return float4(colorDepth.rgb, fogOpacity);

3
code/renderer/shaders/grp/fog_outside.hlsl
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@ -37,7 +37,8 @@ float4 ps(VOut input) : SV_Target
discard;
}
float fogOpacity = saturate((depthBuff - depthFrag) / colorDepth.w);
float distance01 = saturate((depthBuff - depthFrag) / colorDepth.w);
float fogOpacity = FogOpacityFromDistance01(distance01);
return float4(colorDepth.rgb, fogOpacity);