void FDecalRendering::SetShader(FRHICommandList& RHICmdList, const FViewInfo& View, bool bShaderComplexity, const FTransientDecalRenderData& DecalData, const FMatrix& FrustumComponentToClip)
{
	const FMaterialShaderMap* MaterialShaderMap = DecalData.MaterialResource->GetRenderingThreadShaderMap();
	auto PixelShader = MaterialShaderMap->GetShader<FDeferredDecalPS>();
	TShaderMapRef<FDeferredDecalVS> VertexShader(View.ShaderMap);

	if(bShaderComplexity)
	{
		TShaderMapRef<FShaderComplexityAccumulatePS> VisualizePixelShader(View.ShaderMap);
		const uint32 NumPixelShaderInstructions = PixelShader->GetNumInstructions();
		const uint32 NumVertexShaderInstructions = VertexShader->GetNumInstructions();

		static FGlobalBoundShaderState BoundShaderState;
		SetGlobalBoundShaderState(RHICmdList, View.GetFeatureLevel(), BoundShaderState, GetVertexDeclarationFVector4(), *VertexShader, *VisualizePixelShader);

		VisualizePixelShader->SetParameters(RHICmdList, NumVertexShaderInstructions, NumPixelShaderInstructions, View.GetFeatureLevel());
	}
	else
	{
		// first Bind, then SetParameters()
		RHICmdList.SetLocalBoundShaderState(RHICmdList.BuildLocalBoundShaderState(GetVertexDeclarationFVector4(), VertexShader->GetVertexShader(), FHullShaderRHIRef(), FDomainShaderRHIRef(), PixelShader->GetPixelShader(), FGeometryShaderRHIRef()));
		
		PixelShader->SetParameters(RHICmdList, View, DecalData.MaterialProxy, *DecalData.DecalProxy, DecalData.FadeAlpha);
	}

	VertexShader->SetParameters(RHICmdList, View, FrustumComponentToClip);
}
void FDecalRendering::SetShader(FRHICommandList& RHICmdList, const FViewInfo& View, const FTransientDecalRenderData& DecalData, const FMatrix& FrustumComponentToClip)
{
	const FMaterialShaderMap* MaterialShaderMap = DecalData.MaterialResource->GetRenderingThreadShaderMap();
	auto PixelShader = MaterialShaderMap->GetShader<FDeferredDecalPS>();
	TShaderMapRef<FDeferredDecalVS> VertexShader(View.ShaderMap);

	const EDebugViewShaderMode DebugViewShaderMode = View.Family->GetDebugViewShaderMode();
	if (DebugViewShaderMode != DVSM_None)
	{
		// For this to work, decal VS must output compatible interpolants. Currently this requires to use FDebugPSInLean.
		// Here we pass nullptr for the material interface because the use of a static bound shader state is only compatible with unique shaders.
		IDebugViewModePSInterface* DebugPixelShader = FDebugViewMode::GetPSInterface(View.ShaderMap, nullptr, DebugViewShaderMode); 

		const uint32 NumPixelShaderInstructions = PixelShader->GetNumInstructions();
		const uint32 NumVertexShaderInstructions = VertexShader->GetNumInstructions();

		static FGlobalBoundShaderState BoundShaderState[DVSM_MAX];
		SetGlobalBoundShaderState(RHICmdList, View.GetFeatureLevel(), BoundShaderState[(uint32)DebugViewShaderMode], GetVertexDeclarationFVector4(), *VertexShader, DebugPixelShader->GetShader());

		DebugPixelShader->SetParameters(RHICmdList, *VertexShader, PixelShader, DecalData.MaterialProxy, *DecalData.MaterialResource, View);
		DebugPixelShader->SetMesh(RHICmdList, View);
	}
	else
	{
		// first Bind, then SetParameters()
		RHICmdList.SetLocalBoundShaderState(RHICmdList.BuildLocalBoundShaderState(GetVertexDeclarationFVector4(), VertexShader->GetVertexShader(), FHullShaderRHIRef(), FDomainShaderRHIRef(), PixelShader->GetPixelShader(), FGeometryShaderRHIRef()));

		PixelShader->SetParameters(RHICmdList, View, DecalData.MaterialProxy, *DecalData.DecalProxy, DecalData.FadeAlpha);
	}

	// SetUniformBufferParameter() need to happen after the shader has been set otherwise a DebugBreak could occur.

	// we don't have the Primitive uniform buffer setup for decals (later we want to batch)
	{
		auto& PrimitiveVS = VertexShader->GetUniformBufferParameter<FPrimitiveUniformShaderParameters>();
		auto& PrimitivePS = PixelShader->GetUniformBufferParameter<FPrimitiveUniformShaderParameters>();

		// uncomment to track down usage of the Primitive uniform buffer
		//	check(!PrimitiveVS.IsBound());
		//	check(!PrimitivePS.IsBound());

		// to prevent potential shader error (UE-18852 ElementalDemo crashes due to nil constant buffer)
		SetUniformBufferParameter(RHICmdList, VertexShader->GetVertexShader(), PrimitiveVS, GIdentityPrimitiveUniformBuffer);

		if (DebugViewShaderMode == DVSM_None)
		{
			SetUniformBufferParameter(RHICmdList, PixelShader->GetPixelShader(), PrimitivePS, GIdentityPrimitiveUniformBuffer);
		}
	}

	VertexShader->SetParameters(RHICmdList, View, FrustumComponentToClip);
}
Ejemplo n.º 3
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void FDecalRendering::SetShader(FRHICommandList& RHICmdList, const FViewInfo& View, bool bShaderComplexity, const FTransientDecalRenderData& DecalData, const FMatrix& FrustumComponentToClip)
{
	const FMaterialShaderMap* MaterialShaderMap = DecalData.MaterialResource->GetRenderingThreadShaderMap();
	auto PixelShader = MaterialShaderMap->GetShader<FDeferredDecalPS>();
	TShaderMapRef<FDeferredDecalVS> VertexShader(View.ShaderMap);

	// we don't have the Primitive uniform buffer setup for decals (later we want to batch)
	{
		auto& PrimitiveVS = VertexShader->GetUniformBufferParameter<FPrimitiveUniformShaderParameters>();
		auto& PrimitivePS = PixelShader->GetUniformBufferParameter<FPrimitiveUniformShaderParameters>();

		// uncomment to track down usage of the Primitive uniform buffer
		//	check(!PrimitiveVS.IsBound());
		//	check(!PrimitivePS.IsBound());

		// to prevent potential shader error (UE-18852 ElementalDemo crashes due to nil constant buffer)
		SetUniformBufferParameter(RHICmdList, VertexShader->GetVertexShader(), PrimitiveVS, GIdentityPrimitiveUniformBuffer);
		SetUniformBufferParameter(RHICmdList, PixelShader->GetPixelShader(), PrimitivePS, GIdentityPrimitiveUniformBuffer);
	}

	if(bShaderComplexity)
	{
		TShaderMapRef<FShaderComplexityAccumulatePS> VisualizePixelShader(View.ShaderMap);
		const uint32 NumPixelShaderInstructions = PixelShader->GetNumInstructions();
		const uint32 NumVertexShaderInstructions = VertexShader->GetNumInstructions();

		static FGlobalBoundShaderState BoundShaderState;
		SetGlobalBoundShaderState(RHICmdList, View.GetFeatureLevel(), BoundShaderState, GetVertexDeclarationFVector4(), *VertexShader, *VisualizePixelShader);

		VisualizePixelShader->SetParameters(RHICmdList, NumVertexShaderInstructions, NumPixelShaderInstructions, View.GetFeatureLevel());
	}
	else
	{
		// first Bind, then SetParameters()
		RHICmdList.SetLocalBoundShaderState(RHICmdList.BuildLocalBoundShaderState(GetVertexDeclarationFVector4(), VertexShader->GetVertexShader(), FHullShaderRHIRef(), FDomainShaderRHIRef(), PixelShader->GetPixelShader(), FGeometryShaderRHIRef()));
		
		PixelShader->SetParameters(RHICmdList, View, DecalData.MaterialProxy, *DecalData.DecalProxy, DecalData.FadeAlpha);
	}

	VertexShader->SetParameters(RHICmdList, View, FrustumComponentToClip);
}
void FDecalRendering::SetVertexShaderOnly(FRHICommandList& RHICmdList, const FViewInfo& View, const FMatrix& FrustumComponentToClip)
{
	TShaderMapRef<FDeferredDecalVS> VertexShader(View.ShaderMap);
	RHICmdList.SetLocalBoundShaderState(RHICmdList.BuildLocalBoundShaderState(GetVertexDeclarationFVector4(), VertexShader->GetVertexShader(), FHullShaderRHIRef(), FDomainShaderRHIRef(), NULL, FGeometryShaderRHIRef()));
	VertexShader->SetParameters(RHICmdList, View, FrustumComponentToClip);
}