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Added r.SkySpecularOcclusionStrength to tweak DFAO influence on sky specular

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[CL 2369038 by Daniel Wright in Main branch]
This commit is contained in:
Daniel Wright
2014-11-24 17:39:52 -05:00
committed by UnrealBot
parent cae40f068a
commit 1ac2fdb3df
2 changed files with 17 additions and 7 deletions
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17
Engine/Source/Runtime/Renderer/Private/ReflectionEnvironment.cpp
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@@ -46,6 +46,12 @@ static TAutoConsoleVariable<int32> CVarHalfResReflections(
TEXT(" 0 is off (default), 1 is on"),
ECVF_RenderThreadSafe);
static TAutoConsoleVariable<float> CVarSkySpecularOcclusionStrength(
TEXT("r.SkySpecularOcclusionStrength"),
1,
TEXT("Strength of skylight specular occlusion from DFAO"),
ECVF_RenderThreadSafe);
// to avoid having direct access from many places
static int GetReflectionEnvironmentCVar()
{
@@ -124,10 +130,11 @@ public:
BentNormalAOTexture.Bind(ParameterMap, TEXT("BentNormalAOTexture"));
BentNormalAOSampler.Bind(ParameterMap, TEXT("BentNormalAOSampler"));
ApplyBentNormalAO.Bind(ParameterMap, TEXT("ApplyBentNormalAO"));
InvSkySpecularOcclusionStrength.Bind(ParameterMap, TEXT("InvSkySpecularOcclusionStrength"));
}
template<typename ShaderRHIParamRef>
void SetParameters(FRHICommandList& RHICmdList, const ShaderRHIParamRef& ShaderRHI, const TRefCountPtr<IPooledRenderTarget>& DynamicBentNormalAO )
void SetParameters(FRHICommandList& RHICmdList, const ShaderRHIParamRef& ShaderRHI, const TRefCountPtr<IPooledRenderTarget>& DynamicBentNormalAO, float SkySpecularOcclusionStrength)
{
FTextureRHIParamRef BentNormalAO = GWhiteTexture->TextureRHI;
bool bApplyBentNormalAO = false;
@@ -140,11 +147,12 @@ public:
SetTextureParameter(RHICmdList, ShaderRHI, BentNormalAOTexture, BentNormalAOSampler, TStaticSamplerState<SF_Point>::GetRHI(), BentNormalAO);
SetShaderValue(RHICmdList, ShaderRHI, ApplyBentNormalAO, bApplyBentNormalAO ? 1.0f : 0.0f);
SetShaderValue(RHICmdList, ShaderRHI, InvSkySpecularOcclusionStrength, 1.0f / FMath::Max(SkySpecularOcclusionStrength, .1f));
}
friend FArchive& operator<<(FArchive& Ar,FDistanceFieldAOSpecularOcclusionParameters& P)
{
Ar << P.BentNormalAOTexture << P.BentNormalAOSampler << P.ApplyBentNormalAO;
Ar << P.BentNormalAOTexture << P.BentNormalAOSampler << P.ApplyBentNormalAO << P.InvSkySpecularOcclusionStrength;
return Ar;
}
@@ -152,6 +160,7 @@ private:
FShaderResourceParameter BentNormalAOTexture;
FShaderResourceParameter BentNormalAOSampler;
FShaderParameter ApplyBentNormalAO;
FShaderParameter InvSkySpecularOcclusionStrength;
};
struct FReflectionCaptureSortData
@@ -324,7 +333,7 @@ public:
SetTextureParameter(RHICmdList, ShaderRHI, PreIntegratedGF, PreIntegratedGFSampler, TStaticSamplerState<SF_Bilinear,AM_Clamp,AM_Clamp,AM_Clamp>::GetRHI(), GSystemTextures.PreintegratedGF->GetRenderTargetItem().ShaderResourceTexture);
SkyLightParameters.SetParameters(RHICmdList, ShaderRHI, Scene, View.Family->EngineShowFlags.SkyLighting);
SpecularOcclusionParameters.SetParameters(RHICmdList, ShaderRHI, DynamicBentNormalAO);
SpecularOcclusionParameters.SetParameters(RHICmdList, ShaderRHI, DynamicBentNormalAO, CVarSkySpecularOcclusionStrength.GetValueOnRenderThread());
}
void UnsetParameters(FRHICommandList& RHICmdList)
@@ -446,7 +455,7 @@ public:
SetTextureParameter(RHICmdList, ShaderRHI, ScreenSpaceReflectionsTexture, ScreenSpaceReflectionsSampler, TStaticSamplerState<SF_Point>::GetRHI(), ScreenSpaceReflections );
SetTextureParameter(RHICmdList, ShaderRHI, PreIntegratedGF, PreIntegratedGFSampler, TStaticSamplerState<SF_Bilinear,AM_Clamp,AM_Clamp,AM_Clamp>::GetRHI(), GSystemTextures.PreintegratedGF->GetRenderTargetItem().ShaderResourceTexture );
SpecularOcclusionParameters.SetParameters(RHICmdList, ShaderRHI, DynamicBentNormalAO);
SpecularOcclusionParameters.SetParameters(RHICmdList, ShaderRHI, DynamicBentNormalAO, CVarSkySpecularOcclusionStrength.GetValueOnRenderThread());
}
// FShader interface.