C++ GetInputDesc函数代码示例

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本文整理汇总了C++中GetInputDesc函数的典型用法代码示例。如果您正苦于以下问题：C++ GetInputDesc函数的具体用法？C++ GetInputDesc怎么用？C++ GetInputDesc使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了GetInputDesc函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: SCOPED_DRAW_EVENT

void FRCPassPostProcessAA::Process(FRenderingCompositePassContext& Context)
{
	SCOPED_DRAW_EVENT(Context.RHICmdList, PostProcessAA);

	const FPooledRenderTargetDesc* InputDesc = GetInputDesc(ePId_Input0);

	if(!InputDesc)
	{
		// input is not hooked up correctly
		return;
	}

	const FSceneView& View = Context.View;
	const FSceneViewFamily& ViewFamily = *(View.Family);

	FIntRect SrcRect = View.ViewRect;
	FIntRect DestRect = View.ViewRect;
	FIntPoint SrcSize = InputDesc->Extent;
	FIntPoint DestSize = PassOutputs[0].RenderTargetDesc.Extent;

	const FSceneRenderTargetItem& DestRenderTarget = PassOutputs[0].RequestSurface(Context);

	

	// Set the view family's render target/viewport.
	SetRenderTarget(Context.RHICmdList, DestRenderTarget.TargetableTexture, FTextureRHIRef());
	Context.SetViewportAndCallRHI(0, 0, 0.0f, DestSize.X, DestSize.Y, 1.0f );

	// set the state
	Context.RHICmdList.SetBlendState(TStaticBlendState<>::GetRHI());
	Context.RHICmdList.SetRasterizerState(TStaticRasterizerState<>::GetRHI());
	Context.RHICmdList.SetDepthStencilState(TStaticDepthStencilState<false, CF_Always>::GetRHI());

	switch(Quality)
	{
		case 1:  SetShaderTemplAA<1>(Context); break;
		case 2:  SetShaderTemplAA<2>(Context); break;
		case 3:  SetShaderTemplAA<3>(Context); break;
		case 4:  SetShaderTemplAA<4>(Context); break;
		case 5:  SetShaderTemplAA<5>(Context); break;
		default: SetShaderTemplAA<6>(Context); break;
	}
	
	// Draw a quad mapping scene color to the view's render target
	TShaderMapRef<FFXAAVS> VertexShader(Context.GetShaderMap());

	DrawRectangle(
		Context.RHICmdList,
		DestRect.Min.X, DestRect.Min.Y,
		DestRect.Width(), DestRect.Height(),
		SrcRect.Min.X, SrcRect.Min.Y,
		SrcRect.Width(), SrcRect.Height(),
		DestSize,
		SrcSize,
		*VertexShader,
		EDRF_Default);

	Context.RHICmdList.CopyToResolveTarget(DestRenderTarget.TargetableTexture, DestRenderTarget.ShaderResourceTexture, false, FResolveParams());
}

开发者ID:colwalder，项目名称:unrealengine，代码行数:59，代码来源:PostProcessAA.cpp

示例2: SCOPED_DRAW_EVENT

void FRCPassPostProcessLensBlur::Process(FRenderingCompositePassContext& Context)
{
	SCOPED_DRAW_EVENT(Context.RHICmdList, PassPostProcessLensBlur);

	const FPooledRenderTargetDesc* InputDesc = GetInputDesc(ePId_Input0);
	
	if(!InputDesc)
	{
		// input is not hooked up correctly
		return;
	}

	const FSceneView& View = Context.View;

	FIntPoint TexSize = InputDesc->Extent;

	// usually 1, 2, 4 or 8
	uint32 ScaleToFullRes = GSceneRenderTargets.GetBufferSizeXY().X / TexSize.X;

	FIntRect ViewRect = FIntRect::DivideAndRoundUp(View.ViewRect, ScaleToFullRes);
	FIntPoint ViewSize = ViewRect.Size();

	const FSceneRenderTargetItem& DestRenderTarget = PassOutputs[0].RequestSurface(Context);

	// Set the view family's render target/viewport.
	SetRenderTarget(Context.RHICmdList, DestRenderTarget.TargetableTexture, FTextureRHIRef(), ESimpleRenderTargetMode::EClearColorToBlack);

	Context.SetViewportAndCallRHI(ViewRect);

	// set the state (additive blending)
	Context.RHICmdList.SetBlendState(TStaticBlendState<CW_RGB, BO_Add, BF_One, BF_One>::GetRHI());
	Context.RHICmdList.SetRasterizerState(TStaticRasterizerState<>::GetRHI());
	Context.RHICmdList.SetDepthStencilState(TStaticDepthStencilState<false, CF_Always>::GetRHI());

	TShaderMapRef<FPostProcessLensBlurVS> VertexShader(Context.GetShaderMap());
	TShaderMapRef<FPostProcessLensBlurPS> PixelShader(Context.GetShaderMap());

	static FGlobalBoundShaderState BoundShaderState;
	
	SetGlobalBoundShaderState(Context.RHICmdList, Context.GetFeatureLevel(), BoundShaderState, GEmptyVertexDeclaration.VertexDeclarationRHI, *VertexShader, *PixelShader);

	uint32 TileSize = 1;

	FIntPoint TileCount = ViewSize / TileSize;

	float PixelKernelSize = PercentKernelSize / 100.0f * ViewSize.X;

	VertexShader->SetParameters(Context, TileCount, TileSize, PixelKernelSize, Threshold);
	PixelShader->SetParameters(Context, PixelKernelSize);

	Context.RHICmdList.SetStreamSource(0, NULL, 0, 0);

	// needs to be the same on shader side (faster on NVIDIA and AMD)
	int32 QuadsPerInstance = 4;

	Context.RHICmdList.DrawPrimitive(PT_TriangleList, 0, 2, FMath::DivideAndRoundUp(TileCount.X * TileCount.Y, QuadsPerInstance));

	Context.RHICmdList.CopyToResolveTarget(DestRenderTarget.TargetableTexture, DestRenderTarget.ShaderResourceTexture, false, FResolveParams());
}

开发者ID:johndpope，项目名称:UE4，代码行数:59，代码来源:PostProcessLensBlur.cpp

示例3: SCOPED_DRAW_EVENT

void FRCPassPostProcessMorpheus::Process(FRenderingCompositePassContext& Context)
{
	SCOPED_DRAW_EVENT(Context.RHICmdList, PostProcessMorpheus);
	const FPooledRenderTargetDesc* InputDesc = GetInputDesc(ePId_Input0);

	if(!InputDesc)
	{
		// input is not hooked up correctly
		return;
	}

	const FSceneView& View = Context.View;
	const FSceneViewFamily& ViewFamily = *(View.Family);
	
	FIntRect SrcRect = View.ViewRect;
	FIntRect DestRect = View.UnscaledViewRect;
	FIntPoint SrcSize = InputDesc->Extent;

	const FSceneRenderTargetItem& DestRenderTarget = PassOutputs[0].RequestSurface(Context);

	// Set the view family's render target/viewport.
	SetRenderTarget(Context.RHICmdList, DestRenderTarget.TargetableTexture, FTextureRHIRef());

	Context.SetViewportAndCallRHI(DestRect);

	// set the state
	Context.RHICmdList.SetBlendState(TStaticBlendState<>::GetRHI());
	Context.RHICmdList.SetRasterizerState(TStaticRasterizerState<>::GetRHI());
	Context.RHICmdList.SetDepthStencilState(TStaticDepthStencilState<false, CF_Always>::GetRHI());

	TShaderMapRef<FPostProcessMorpheusVS> VertexShader(Context.GetShaderMap());
	TShaderMapRef<FPostProcessMorpheusPS> PixelShader(Context.GetShaderMap());

	static FGlobalBoundShaderState BoundShaderState;
	

	SetGlobalBoundShaderState(Context.RHICmdList, Context.GetFeatureLevel(), BoundShaderState, GFilterVertexDeclaration.VertexDeclarationRHI, *VertexShader, *PixelShader);

	FMatrix QuadTexTransform;
	FMatrix QuadPosTransform = FMatrix::Identity;

	PixelShader->SetPS(Context, SrcRect, SrcSize, View.StereoPass, QuadTexTransform);

	// Draw a quad mapping scene color to the view's render target
	DrawTransformedRectangle(
		Context.RHICmdList,
		0, 0,
		DestRect.Width(), DestRect.Height(),
		QuadPosTransform,
		SrcRect.Min.X, SrcRect.Min.Y,
		SrcRect.Width(), SrcRect.Height(),
		QuadTexTransform,
		DestRect.Size(),
		SrcSize
		);

	Context.RHICmdList.CopyToResolveTarget(DestRenderTarget.TargetableTexture, DestRenderTarget.ShaderResourceTexture, false, FResolveParams());
}

开发者ID:kidaa，项目名称:UnrealEngineVR，代码行数:58，代码来源:PostProcessMorpheus.cpp

示例4: SCOPED_DRAW_EVENT

void FRCPassPostProcessVisualizeBloomOverlay::Process(FRenderingCompositePassContext& Context)
{
	SCOPED_DRAW_EVENT(Context.RHICmdList, VisualizeBloomOverlay);

	const FPooledRenderTargetDesc* InputDesc = GetInputDesc(ePId_Input0);

	check(InputDesc && "Input is not hooked up correctly");

	const FSceneView& View = Context.View;
	const FSceneViewFamily& ViewFamily = *(View.Family);

	FIntPoint SrcSize = InputDesc->Extent;
	FIntPoint DestSize = PassOutputs[0].RenderTargetDesc.Extent;

	// e.g. 4 means the input texture is 4x smaller than the buffer size
	uint32 ScaleFactor = GSceneRenderTargets.GetBufferSizeXY().X / SrcSize.X;

	FIntRect SrcRect = View.ViewRect / ScaleFactor;
	FIntRect DestRect = SrcRect;

	const FSceneRenderTargetItem& DestRenderTarget = PassOutputs[0].RequestSurface(Context);

	SetRenderTarget(Context.RHICmdList, DestRenderTarget.TargetableTexture, FTextureRHIRef());

	// is optimized away if possible (RT size=view size, )
	Context.RHICmdList.Clear(true, FLinearColor(0, 0, 0, 0), false, 1.0f, false, 0, DestRect);

	Context.SetViewportAndCallRHI(0, 0, 0.0f, DestRect.Width(), DestRect.Height(), 1.0f );

	// set the state
	Context.RHICmdList.SetBlendState(TStaticBlendState<>::GetRHI());
	Context.RHICmdList.SetRasterizerState(TStaticRasterizerState<>::GetRHI());
	Context.RHICmdList.SetDepthStencilState(TStaticDepthStencilState<false, CF_Always>::GetRHI());

	TShaderMapRef<FPostProcessVS> VertexShader(Context.GetShaderMap());
	TShaderMapRef<FPostProcessVisualizeBloomOverlayPS> PixelShader(Context.GetShaderMap());

	static FGlobalBoundShaderState BoundShaderState;

	SetGlobalBoundShaderState(Context.RHICmdList, Context.GetFeatureLevel(), BoundShaderState, GFilterVertexDeclaration.VertexDeclarationRHI, *VertexShader, *PixelShader);

	PixelShader->SetParameters(Context);
	VertexShader->SetParameters(Context);

	// Draw a quad mapping scene color to the view's render target
	DrawRectangle(
		Context.RHICmdList,
		DestRect.Min.X, DestRect.Min.Y,
		DestRect.Width(), DestRect.Height(),
		SrcRect.Min.X, SrcRect.Min.Y,
		SrcRect.Width(), SrcRect.Height(),
		DestRect.Size(),
		SrcSize,
		*VertexShader,
		EDRF_UseTriangleOptimization);

	Context.RHICmdList.CopyToResolveTarget(DestRenderTarget.TargetableTexture, DestRenderTarget.ShaderResourceTexture, false, FResolveParams());
}

开发者ID:johndpope，项目名称:UE4，代码行数:58，代码来源:PostProcessBloomSetup.cpp

示例5: SCOPED_DRAW_EVENT

void FRCPassPostProcessVisualizeMotionBlur::Process(FRenderingCompositePassContext& Context)
{
	SCOPED_DRAW_EVENT(VisualizeMotionBlur, DEC_SCENE_ITEMS);

	const FPooledRenderTargetDesc* InputDesc = GetInputDesc(ePId_Input0);

	if(!InputDesc)
	{
		// input is not hooked up correctly
		return;
	}

	const FSceneView& View = Context.View;

	FIntPoint TexSize = InputDesc->Extent;

	// we assume the input and output is full resolution

	FIntPoint SrcSize = InputDesc->Extent;
	FIntPoint DestSize = PassOutputs[0].RenderTargetDesc.Extent;

	// e.g. 4 means the input texture is 4x smaller than the buffer size
	uint32 ScaleFactor = GSceneRenderTargets.GetBufferSizeXY().X / SrcSize.X;

	FIntRect SrcRect = FIntRect::DivideAndRoundUp(View.ViewRect, ScaleFactor);
	FIntRect DestRect = SrcRect;

	const FSceneRenderTargetItem& DestRenderTarget = PassOutputs[0].RequestSurface(Context);

	// Set the view family's render target/viewport.
	RHISetRenderTarget(DestRenderTarget.TargetableTexture, FTextureRHIRef());
	
	// is optimized away if possible (RT size=view size, )
	RHIClear(true, FLinearColor::Black, false, 1.0f, false, 0, SrcRect);

	Context.SetViewportAndCallRHI(SrcRect);

	// set the state
	RHISetBlendState(TStaticBlendState<>::GetRHI());
	RHISetRasterizerState(TStaticRasterizerState<>::GetRHI());
	RHISetDepthStencilState(TStaticDepthStencilState<false,CF_Always>::GetRHI());

	// Quality 0: visualize
	SetMotionBlurShaderTempl<0>(Context);

	// Draw a quad mapping scene color to the view's render target
	DrawRectangle(
		0, 0,
		SrcRect.Width(), SrcRect.Height(),
		SrcRect.Min.X, SrcRect.Min.Y, 
		SrcRect.Width(), SrcRect.Height(),
		SrcRect.Size(),
		SrcSize,
		EDRF_UseTriangleOptimization);

	RHICopyToResolveTarget(DestRenderTarget.TargetableTexture, DestRenderTarget.ShaderResourceTexture, false, FResolveParams());
}

开发者ID:Tigrouzen，项目名称:UnrealEngine-4，代码行数:57，代码来源:PostProcessMotionBlur.cpp

示例6: SCOPED_DRAW_EVENT

void FRCPassPostProcessHistogramReduce::Process(FRenderingCompositePassContext& Context)
{
	SCOPED_DRAW_EVENT(Context.RHICmdList, PostProcessHistogramReduce);
	const FPooledRenderTargetDesc* InputDesc = GetInputDesc(ePId_Input0);

	if(!InputDesc)
	{
		// input is not hooked up correctly
		return;
	}

	const FSceneView& View = Context.View;
	const FSceneViewFamily& ViewFamily = *(View.Family);
	
	FIntPoint SrcSize = InputDesc->Extent;
	FIntPoint DestSize = PassOutputs[0].RenderTargetDesc.Extent;

	const FSceneRenderTargetItem& DestRenderTarget = PassOutputs[0].RequestSurface(Context);

	// Set the view family's render target/viewport.
	SetRenderTarget(Context.RHICmdList, DestRenderTarget.TargetableTexture, FTextureRHIRef());

	// set the state
	Context.RHICmdList.SetBlendState(TStaticBlendState<>::GetRHI());
	Context.RHICmdList.SetRasterizerState(TStaticRasterizerState<>::GetRHI());
	Context.RHICmdList.SetDepthStencilState(TStaticDepthStencilState<false, CF_Always>::GetRHI());

	TShaderMapRef<FPostProcessVS> VertexShader(Context.GetShaderMap());
	TShaderMapRef<FPostProcessHistogramReducePS> PixelShader(Context.GetShaderMap());

	static FGlobalBoundShaderState BoundShaderState;
	

	SetGlobalBoundShaderState(Context.RHICmdList, Context.GetFeatureLevel(), BoundShaderState, GFilterVertexDeclaration.VertexDeclarationRHI, *VertexShader, *PixelShader);

	// we currently assume the input is half res, one full res pixel less to avoid getting bilinear filtered input
	FIntPoint GatherExtent = (View.ViewRect.Size() - FIntPoint(1, 1)) / 2;

	uint32 LoopSizeValue = ComputeLoopSize(GatherExtent);

	PixelShader->SetPS(Context, LoopSizeValue);

	DrawPostProcessPass(
		Context.RHICmdList,
		0, 0,
		DestSize.X, DestSize.Y,
		0, 0,
		SrcSize.X, 0,
		DestSize,
		SrcSize,
		*VertexShader,
		View.StereoPass,
		Context.HasHmdMesh(),
		EDRF_UseTriangleOptimization);

	Context.RHICmdList.CopyToResolveTarget(DestRenderTarget.TargetableTexture, DestRenderTarget.ShaderResourceTexture, false, FResolveParams());
}

开发者ID:frobro98，项目名称:UnrealSource，代码行数:57，代码来源:PostProcessHistogramReduce.cpp

示例7: SCOPED_DRAW_EVENT

void FRCPassPostProcessVisualizeComplexity::Process(FRenderingCompositePassContext& Context)
{
	SCOPED_DRAW_EVENT(Context.RHICmdList, PostProcessVisualizeComplexity);
	const FPooledRenderTargetDesc* InputDesc = GetInputDesc(ePId_Input0);

	if(!InputDesc)
	{
		// input is not hooked up correctly
		return;
	}

	const FSceneView& View = Context.View;
	const FSceneViewFamily& ViewFamily = *(View.Family);
	
	FIntRect SrcRect = View.ViewRect;
	FIntRect DestRect = View.UnscaledViewRect;
	FIntPoint SrcSize = InputDesc->Extent;

	const FSceneRenderTargetItem& DestRenderTarget = PassOutputs[0].RequestSurface(Context);

	// Set the view family's render target/viewport.
	SetRenderTarget(Context.RHICmdList, DestRenderTarget.TargetableTexture, FTextureRHIRef());
	Context.SetViewportAndCallRHI(DestRect);

	// turn off culling and blending
	Context.RHICmdList.SetRasterizerState(TStaticRasterizerState<FM_Solid, CM_None>::GetRHI());
	Context.RHICmdList.SetBlendState(TStaticBlendState<>::GetRHI());

	// turn off depth reads/writes
	Context.RHICmdList.SetDepthStencilState(TStaticDepthStencilState<false, CF_Always>::GetRHI());

	//reuse this generic vertex shader
	TShaderMapRef<FShaderComplexityApplyVS> VertexShader(Context.GetShaderMap());
	TShaderMapRef<FShaderComplexityApplyPS> PixelShader(Context.GetShaderMap());

	static FGlobalBoundShaderState ShaderComplexityBoundShaderState;
	
	SetGlobalBoundShaderState(Context.RHICmdList, Context.GetFeatureLevel(), ShaderComplexityBoundShaderState, GFilterVertexDeclaration.VertexDeclarationRHI, *VertexShader, *PixelShader);

	PixelShader->SetParameters(Context, Colors);
	
	DrawRectangle(
		Context.RHICmdList,
		0, 0,
		DestRect.Width(), DestRect.Height(),
		SrcRect.Min.X, SrcRect.Min.Y,
		SrcRect.Width(), SrcRect.Height(),
		DestRect.Size(),
		SrcSize,
		*VertexShader,
		EDRF_UseTriangleOptimization);

	Context.RHICmdList.CopyToResolveTarget(DestRenderTarget.TargetableTexture, DestRenderTarget.ShaderResourceTexture, false, FResolveParams());
}

开发者ID:xiangyuan，项目名称:Unreal4，代码行数:54，代码来源:ShaderComplexityRendering.cpp

示例8: SCOPED_DRAW_EVENT

void FRCPassPostProcessSceneColorFringe::Process(FRenderingCompositePassContext& Context)
{
	SCOPED_DRAW_EVENT(Context.RHICmdList, SceneColorFringe);

	const FPooledRenderTargetDesc* InputDesc = GetInputDesc(ePId_Input0);

	if(!InputDesc)
	{
		// input is not hooked up correctly
		return;
	}

	const FSceneView& View = Context.View;
	const FSceneViewFamily& ViewFamily = *(View.Family);

	const FSceneRenderTargetItem& DestRenderTarget = PassOutputs[0].RequestSurface(Context);

	// Set the view family's render target/viewport.
	SetRenderTarget(Context.RHICmdList, DestRenderTarget.TargetableTexture, FTextureRHIRef());
	Context.SetViewportAndCallRHI(View.ViewRect);

	// set the state
	Context.RHICmdList.SetBlendState(TStaticBlendState<>::GetRHI());
	Context.RHICmdList.SetRasterizerState(TStaticRasterizerState<>::GetRHI());
	Context.RHICmdList.SetDepthStencilState(TStaticDepthStencilState<false, CF_Always>::GetRHI());
	
	TShaderMapRef<FPostProcessSceneColorFringeVS> VertexShader(Context.GetShaderMap());
	TShaderMapRef<FPostProcessSceneColorFringePS> PixelShader(Context.GetShaderMap());

	static FGlobalBoundShaderState BoundShaderState;
	

	SetGlobalBoundShaderState(Context.RHICmdList, Context.GetFeatureLevel(), BoundShaderState, GFilterVertexDeclaration.VertexDeclarationRHI, *VertexShader, *PixelShader);

	PixelShader->SetParameters(Context);
	VertexShader->SetParameters(Context);
	
	// Draw a quad mapping scene color to the view's render target
	DrawRectangle(
		Context.RHICmdList,
		0, 0,
		View.ViewRect.Width(), View.ViewRect.Height(),
		View.ViewRect.Min.X, View.ViewRect.Min.Y, 
		View.ViewRect.Width(), View.ViewRect.Height(),
		View.ViewRect.Size(),
		FSceneRenderTargets::Get(Context.RHICmdList).GetBufferSizeXY(),
		*VertexShader,
		EDRF_UseTriangleOptimization);

	Context.RHICmdList.CopyToResolveTarget(DestRenderTarget.TargetableTexture, DestRenderTarget.ShaderResourceTexture, false, FResolveParams());
}

开发者ID:amyvmiwei，项目名称:UnrealEngine4，代码行数:51，代码来源:PostProcessSceneColorFringe.cpp

示例9: SCOPED_DRAW_EVENT

void FRCPassPostProcessHMD::Process(FRenderingCompositePassContext& Context)
{
	SCOPED_DRAW_EVENT(Context.RHICmdList, PostProcessHMD, DEC_SCENE_ITEMS);
	const FPooledRenderTargetDesc* InputDesc = GetInputDesc(ePId_Input0);

	if(!InputDesc)
	{
		// input is not hooked up correctly
		return;
	}

	const FSceneView& View = Context.View;
	const FSceneViewFamily& ViewFamily = *(View.Family);
	
	const FIntRect SrcRect = View.ViewRect;
	const FIntRect DestRect = View.UnscaledViewRect;
	const FIntPoint SrcSize = InputDesc->Extent;

    const FSceneRenderTargetItem& DestRenderTarget = PassOutputs[0].RequestSurface(Context);

	// Set the view family's render target/viewport.
	SetRenderTarget(Context.RHICmdList, DestRenderTarget.TargetableTexture, FTextureRHIRef());

	Context.SetViewportAndCallRHI(DestRect);
	Context.RHICmdList.Clear(true, FLinearColor::Black, false, 1.0f, false, 0, FIntRect());

	// set the state
	Context.RHICmdList.SetBlendState(TStaticBlendState<>::GetRHI());
	Context.RHICmdList.SetRasterizerState(TStaticRasterizerState<>::GetRHI());
	Context.RHICmdList.SetDepthStencilState(TStaticDepthStencilState<false, CF_Always>::GetRHI());

	FMatrix QuadTexTransform = FMatrix::Identity;
	FMatrix QuadPosTransform = FMatrix::Identity;

	check(GEngine->HMDDevice.IsValid());

	{
		TShaderMapRef<FPostProcessHMDVS<false> > VertexShader(Context.GetShaderMap());
		TShaderMapRef<FPostProcessHMDPS<false> > PixelShader(Context.GetShaderMap());
		static FGlobalBoundShaderState BoundShaderState;
		
		SetGlobalBoundShaderState(Context.RHICmdList, Context.GetFeatureLevel(), BoundShaderState, GDistortionVertexDeclaration.VertexDeclarationRHI, *VertexShader, *PixelShader);
		VertexShader->SetVS(Context, View.StereoPass);
		PixelShader->SetPS(Context, SrcRect, SrcSize, View.StereoPass, QuadTexTransform);
	}
	GEngine->HMDDevice->DrawDistortionMesh_RenderThread(Context, View, SrcSize);

	Context.RHICmdList.CopyToResolveTarget(DestRenderTarget.TargetableTexture, DestRenderTarget.ShaderResourceTexture, false, FResolveParams());
}

开发者ID:1vanK，项目名称:AHRUnrealEngine，代码行数:49，代码来源:PostProcessHMD.cpp

示例10: GetInputDesc

bool FRCPassPostProcessWeightedSampleSum::DoFastBlur() const
{
	bool bRet = false;

	// only do the fast blur only with bilinear filtering
	if(CombineMethod == EFCM_Weighted)
	{
		const FPooledRenderTargetDesc* InputDesc = GetInputDesc(ePId_Input0);

		// input is not hooked up correctly
		check(InputDesc);

		if(FilterShape == EFS_Horiz)
		{
			FIntPoint SrcSize = InputDesc->Extent;

			int32 SrcSizeForThisAxis = SrcSize.X;

			// in texel (input resolution), *2 as we use the diameter
			// we scale by width because FOV is defined horizontally
			float EffectiveBlurRadius = SizeScale * SrcSizeForThisAxis  * 2 / 100.0f;

#if PLATFORM_HTML5
			float FastBlurThreshold = CVarFastBlurThreshold.GetValueOnGameThread();
#else
			float FastBlurThreshold = CVarFastBlurThreshold.GetValueOnRenderThread();
#endif

			// small radius look too different with this optimization so we only to it for larger radius
			bRet = EffectiveBlurRadius >= FastBlurThreshold;
		}
		else
		{
			FIntPoint SrcSize = InputDesc->Extent;
			FIntPoint BufferSize = GSceneRenderTargets.GetBufferSizeXY();

			float InputRatio = SrcSize.X / (float)SrcSize.Y;
			float BufferRatio = BufferSize.X / (float)BufferSize.Y;

			// Half res input detected
			bRet = InputRatio < BufferRatio * 0.75f;
		}
	}

	return bRet;
}

开发者ID:xiangyuan，项目名称:Unreal4，代码行数:46，代码来源:PostProcessWeightedSampleSum.cpp

示例11: SCOPED_DRAW_EVENT

void FRCPassPostProcessHistogram::Process(FRenderingCompositePassContext& Context)
{
    SCOPED_DRAW_EVENT(PostProcessHistogram, DEC_SCENE_ITEMS);
    const FPooledRenderTargetDesc* InputDesc = GetInputDesc(ePId_Input0);

    if(!InputDesc)
    {
        // input is not hooked up correctly
        return;
    }

    const FSceneView& View = Context.View;
    const FSceneViewFamily& ViewFamily = *(View.Family);

    FIntPoint SrcSize = InputDesc->Extent;
    FIntRect DestRect = View.ViewRect;

    const FSceneRenderTargetItem& DestRenderTarget = PassOutputs[0].RequestSurface(Context);

    TShaderMapRef<FPostProcessHistogramCS> ComputeShader(GetGlobalShaderMap());

    RHISetComputeShader(ComputeShader->GetComputeShader());
    RHISetRenderTarget(FTextureRHIRef(), FTextureRHIRef());


    // set destination
    check(DestRenderTarget.UAV);
    RHISetUAVParameter(ComputeShader->GetComputeShader(), ComputeShader->HistogramRWTexture.GetBaseIndex(), DestRenderTarget.UAV);

    // we currently assume the input is half res, one full res pixel less to avoid getting bilinear filtered input
    FIntPoint GatherExtent = (DestRect.Size() - FIntPoint(1, 1)) / 2;

    FIntPoint ThreadGroupCountValue = ComputeThreadGroupCount(GatherExtent);


    ComputeShader->SetCS(Context, ThreadGroupCountValue, (DestRect.Min + FIntPoint(1, 1)) / 2, GatherExtent);

    DispatchComputeShader(*ComputeShader, ThreadGroupCountValue.X, ThreadGroupCountValue.Y, 1);

    // un-set destination
    RHISetUAVParameter(ComputeShader->GetComputeShader(), ComputeShader->HistogramRWTexture.GetBaseIndex(), NULL);

    RHICopyToResolveTarget(DestRenderTarget.TargetableTexture, DestRenderTarget.ShaderResourceTexture, false, FResolveParams());
}

开发者ID:Tigrouzen，项目名称:UnrealEngine-4，代码行数:44，代码来源:PostProcessHistogram.cpp

示例12: SCOPED_DRAW_EVENT

void FRCPassPostProcessHistogram::Process(FRenderingCompositePassContext& Context)
{
	SCOPED_DRAW_EVENT(Context.RHICmdList, PostProcessHistogram);
	const FPooledRenderTargetDesc* InputDesc = GetInputDesc(ePId_Input0);

	if(!InputDesc)
	{
		// input is not hooked up correctly
		return;
	}

	const FSceneView& View = Context.View;
	const FSceneViewFamily& ViewFamily = *(View.Family);
	
	FIntPoint SrcSize = InputDesc->Extent;
	FIntRect DestRect = View.ViewRect;

	const FSceneRenderTargetItem& DestRenderTarget = PassOutputs[0].RequestSurface(Context);

	TShaderMapRef<FPostProcessHistogramCS> ComputeShader(Context.GetShaderMap());

	SetRenderTarget(Context.RHICmdList, FTextureRHIRef(), FTextureRHIRef());
    Context.RHICmdList.SetComputeShader(ComputeShader->GetComputeShader());
    

	// set destination
	check(DestRenderTarget.UAV);
	Context.RHICmdList.TransitionResource(EResourceTransitionAccess::ERWBarrier, EResourceTransitionPipeline::EGfxToCompute, DestRenderTarget.UAV);
	Context.RHICmdList.SetUAVParameter(ComputeShader->GetComputeShader(), ComputeShader->HistogramRWTexture.GetBaseIndex(), DestRenderTarget.UAV);

	FIntPoint GatherExtent = ComputeGatherExtent(View);
	FIntPoint ThreadGroupCountValue = ComputeThreadGroupCount(GatherExtent);

	ComputeShader->SetCS(Context.RHICmdList, Context, ThreadGroupCountValue, (DestRect.Min + FIntPoint(1, 1)) / 2, GatherExtent);
	
	DispatchComputeShader(Context.RHICmdList, *ComputeShader, ThreadGroupCountValue.X, ThreadGroupCountValue.Y, 1);

	// un-set destination
	Context.RHICmdList.SetUAVParameter(ComputeShader->GetComputeShader(), ComputeShader->HistogramRWTexture.GetBaseIndex(), NULL);

	Context.RHICmdList.TransitionResource(EResourceTransitionAccess::EReadable, EResourceTransitionPipeline::EComputeToGfx, DestRenderTarget.UAV);
	ensureMsgf(DestRenderTarget.TargetableTexture == DestRenderTarget.ShaderResourceTexture, TEXT("%s should be resolved to a separate SRV"), *DestRenderTarget.TargetableTexture->GetName().ToString());	
}

开发者ID:WasPedro，项目名称:UnrealEngine4.11-HairWorks，代码行数:43，代码来源:PostProcessHistogram.cpp

示例13: SCOPED_DRAW_EVENT

void FRCPassPostProcessVelocityFlatten::Process(FRenderingCompositePassContext& Context)
{
	SCOPED_DRAW_EVENT(Context.RHICmdList, PostProcessVelocityFlatten);
	const FPooledRenderTargetDesc* InputDesc = GetInputDesc(ePId_Input0);

	if(!InputDesc)
	{
		// input is not hooked up correctly
		return;
	}

	const FSceneView& View = Context.View;
	const FSceneViewFamily& ViewFamily = *(View.Family);
	
	const FSceneRenderTargetItem& DestRenderTarget0 = PassOutputs[0].RequestSurface(Context);
	const FSceneRenderTargetItem& DestRenderTarget1 = PassOutputs[1].RequestSurface(Context);
	//const FSceneRenderTargetItem& DestRenderTarget2 = PassOutputs[2].RequestSurface(Context);

	TShaderMapRef< FPostProcessVelocityFlattenCS > ComputeShader( Context.GetShaderMap() );

	Context.RHICmdList.SetComputeShader(ComputeShader->GetComputeShader());
	SetRenderTarget(Context.RHICmdList, FTextureRHIRef(), FTextureRHIRef());

	// set destination
	Context.RHICmdList.SetUAVParameter( ComputeShader->GetComputeShader(), ComputeShader->OutVelocityFlat.GetBaseIndex(), DestRenderTarget0.UAV );
	//Context.RHICmdList.SetUAVParameter( ComputeShader->GetComputeShader(), ComputeShader->OutPackedVelocityDepth.GetBaseIndex(), DestRenderTarget1.UAV );
	Context.RHICmdList.SetUAVParameter( ComputeShader->GetComputeShader(), ComputeShader->OutMaxTileVelocity.GetBaseIndex(), DestRenderTarget1.UAV );

	ComputeShader->SetCS(Context.RHICmdList, Context, View );
	
	FIntPoint ThreadGroupCountValue = ComputeThreadGroupCount( View.ViewRect.Size() );
	DispatchComputeShader(Context.RHICmdList, *ComputeShader, ThreadGroupCountValue.X, ThreadGroupCountValue.Y, 1);

	// un-set destination
	Context.RHICmdList.SetUAVParameter( ComputeShader->GetComputeShader(), ComputeShader->OutVelocityFlat.GetBaseIndex(), NULL );
	//Context.RHICmdList.SetUAVParameter( ComputeShader->GetComputeShader(), ComputeShader->OutPackedVelocityDepth.GetBaseIndex(), NULL );
	Context.RHICmdList.SetUAVParameter( ComputeShader->GetComputeShader(), ComputeShader->OutMaxTileVelocity.GetBaseIndex(), NULL );

	Context.RHICmdList.CopyToResolveTarget(DestRenderTarget0.TargetableTexture, DestRenderTarget0.ShaderResourceTexture, false, FResolveParams());
	Context.RHICmdList.CopyToResolveTarget(DestRenderTarget1.TargetableTexture, DestRenderTarget1.ShaderResourceTexture, false, FResolveParams());
	//Context.RHICmdList.CopyToResolveTarget(DestRenderTarget1.TargetableTexture, DestRenderTarget2.ShaderResourceTexture, false, FResolveParams());
}

开发者ID:xiangyuan，项目名称:Unreal4，代码行数:42，代码来源:PostProcessMotionBlur.cpp

示例14: SCOPED_DRAW_EVENT

void FRCPassPostProcessPassThrough::Process(FRenderingCompositePassContext& Context)
{
	SCOPED_DRAW_EVENT(PassThrough, DEC_SCENE_ITEMS);

	const FPooledRenderTargetDesc* InputDesc = GetInputDesc(ePId_Input0);

	if(!InputDesc)
	{
		// input is not hooked up correctly
		return;
	}

	const FSceneView& View = Context.View;

	FIntPoint TexSize = InputDesc->Extent;

	// we assume the input and output is full resolution

	FIntPoint SrcSize = InputDesc->Extent;
	FIntPoint DestSize = Dest ? Dest->GetDesc().Extent : PassOutputs[0].RenderTargetDesc.Extent;

	// e.g. 4 means the input texture is 4x smaller than the buffer size
	uint32 InputScaleFactor = GSceneRenderTargets.GetBufferSizeXY().X / SrcSize.X;
	uint32 OutputScaleFactor = GSceneRenderTargets.GetBufferSizeXY().X / DestSize.X;

	FIntRect SrcRect = View.ViewRect / InputScaleFactor;
	FIntRect DestRect = View.ViewRect / OutputScaleFactor;

	const FSceneRenderTargetItem& DestRenderTarget = Dest ? Dest->GetRenderTargetItem() : PassOutputs[0].RequestSurface(Context);

	// Set the view family's render target/viewport.
	RHISetRenderTarget(DestRenderTarget.TargetableTexture, FTextureRHIRef());	
	Context.SetViewportAndCallRHI(0, 0, 0.0f, DestSize.X, DestSize.Y, 1.0f);

	// set the state
	if(bAdditiveBlend)
	{
		RHISetBlendState(TStaticBlendState<CW_RGB,BO_Add,BF_One,BF_One,BO_Add,BF_One,BF_One>::GetRHI());
	}
	else
	{
		RHISetBlendState(TStaticBlendState<>::GetRHI());
	}

	RHISetRasterizerState(TStaticRasterizerState<>::GetRHI());
	RHISetDepthStencilState(TStaticDepthStencilState<false,CF_Always>::GetRHI());

	TShaderMapRef<FPostProcessVS> VertexShader(GetGlobalShaderMap());
	TShaderMapRef<FPostProcessPassThroughPS> PixelShader(GetGlobalShaderMap());

	static FGlobalBoundShaderState BoundShaderState;

	SetGlobalBoundShaderState(BoundShaderState, GFilterVertexDeclaration.VertexDeclarationRHI, *VertexShader, *PixelShader);

	VertexShader->SetParameters(Context);
	PixelShader->SetParameters(Context);

	// Draw a quad mapping scene color to the view's render target
	DrawRectangle(
		DestRect.Min.X, DestRect.Min.Y,
		DestRect.Width(), DestRect.Height(),
		SrcRect.Min.X, SrcRect.Min.Y,
		SrcRect.Width(), SrcRect.Height(),
		DestSize,
		SrcSize,
		EDRF_UseTriangleOptimization);


	RHICopyToResolveTarget(DestRenderTarget.TargetableTexture, DestRenderTarget.ShaderResourceTexture, false, FResolveParams());
}

开发者ID:Tigrouzen，项目名称:UnrealEngine-4，代码行数:70，代码来源:PostProcessPassThrough.cpp

示例15: SCOPED_DRAW_EVENT

void FRCPassPostProcessVisualizeShadingModels::Process(FRenderingCompositePassContext& Context)
{
	SCOPED_DRAW_EVENT(Context.RHICmdList, PostProcessVisualizeShadingModels);
	const FPooledRenderTargetDesc* InputDesc = GetInputDesc(ePId_Input0);

	const FSceneView& View = Context.View;
	const FViewInfo& ViewInfo = Context.View;
	const FSceneViewFamily& ViewFamily = *(View.Family);
	
	FIntRect SrcRect = View.ViewRect;
	FIntRect DestRect = View.ViewRect;
	FIntPoint SrcSize = InputDesc->Extent;

	const FSceneRenderTargetItem& DestRenderTarget = PassOutputs[0].RequestSurface(Context);

	// Set the view family's render target/viewport.
	SetRenderTarget(Context.RHICmdList, DestRenderTarget.TargetableTexture, FTextureRHIRef());
	Context.SetViewportAndCallRHI(DestRect);

	// set the state
	Context.RHICmdList.SetBlendState(TStaticBlendState<>::GetRHI());
	Context.RHICmdList.SetRasterizerState(TStaticRasterizerState<>::GetRHI());
	Context.RHICmdList.SetDepthStencilState(TStaticDepthStencilState<false, CF_Always>::GetRHI());

	TShaderMapRef<FPostProcessVS> VertexShader(Context.GetShaderMap());
	TShaderMapRef<FPostProcessVisualizeShadingModelsPS> PixelShader(Context.GetShaderMap());

	static FGlobalBoundShaderState BoundShaderState;	

	SetGlobalBoundShaderState(Context.RHICmdList, Context.GetFeatureLevel(), BoundShaderState, GFilterVertexDeclaration.VertexDeclarationRHI, *VertexShader, *PixelShader);

	PixelShader->SetPS(Context, ((FViewInfo&)View).ShadingModelMaskInView);

	// Draw a quad mapping scene color to the view's render target
	DrawRectangle(
		Context.RHICmdList,
		DestRect.Min.X, DestRect.Min.Y,
		DestRect.Width(), DestRect.Height(),
		SrcRect.Min.X, SrcRect.Min.Y,
		SrcRect.Width(), SrcRect.Height(),
		DestRect.Size(),
		SrcSize,
		*VertexShader,
		EDRF_UseTriangleOptimization);

	FRenderTargetTemp TempRenderTarget(View, (const FTexture2DRHIRef&)DestRenderTarget.TargetableTexture);
	FCanvas Canvas(&TempRenderTarget, NULL, 0, 0, 0, Context.GetFeatureLevel());

	float X = 30;
	float Y = 28;
	const float YStep = 14;
	const float ColumnWidth = 250;

	FString Line;

	Canvas.DrawShadowedString( X, Y += YStep, TEXT("Visualize ShadingModels (mostly to track down bugs)"), GetStatsFont(), FLinearColor(1, 1, 1));

	Y = 160 - YStep - 4;
	
	uint32 Value = ((FViewInfo&)View).ShadingModelMaskInView;

	Line = FString::Printf(TEXT("View.ShadingModelMaskInView = 0x%x"), Value);
	Canvas.DrawShadowedString( X, Y, *Line, GetStatsFont(), FLinearColor(0.5f, 0.5f, 0.5f));
	Y += YStep;

	UEnum* Enum = FindObject<UEnum>(NULL, TEXT("Engine.EMaterialShadingModel"));
	check(Enum);

	Y += 5;

	for(uint32 i = 0; i < MSM_MAX; ++i)
	{
		FString Name = Enum->GetEnumName(i);
		Line = FString::Printf(TEXT("%d.  %s"), i, *Name);

		bool bThere = (Value & (1 << i)) != 0;

		Canvas.DrawShadowedString(X + 30, Y, *Line, GetStatsFont(), bThere ? FLinearColor(1, 1, 1) : FLinearColor(0, 0, 0) );
		Y += 20;
	}

	Line = FString::Printf(TEXT("(On CPU, based on what gets rendered)"));
	Canvas.DrawShadowedString( X, Y, *Line, GetStatsFont(), FLinearColor(0.5f, 0.5f, 0.5f)); Y += YStep;

	Canvas.Flush_RenderThread(Context.RHICmdList);

	Context.RHICmdList.CopyToResolveTarget(DestRenderTarget.TargetableTexture, DestRenderTarget.ShaderResourceTexture, false, FResolveParams());

	// AdjustGBufferRefCount(1) call is done in constructor
	FSceneRenderTargets::Get(Context.RHICmdList).AdjustGBufferRefCount(Context.RHICmdList, -1);
}

开发者ID:zhaoyizheng0930，项目名称:UnrealEngine，代码行数:91，代码来源:VisualizeShadingModels.cpp

示例16: SCOPED_DRAW_EVENT

void FRCPassPostProcessVisualizeBuffer::Process(FRenderingCompositePassContext& Context)
{
	SCOPED_DRAW_EVENT(VisualizeBuffer, DEC_SCENE_ITEMS);
	const FPooledRenderTargetDesc* InputDesc = GetInputDesc(ePId_Input0);

	if(!InputDesc)
	{
		// input is not hooked up correctly
		return;
	}

	const FSceneView& View = Context.View;
	const FSceneViewFamily& ViewFamily = *(View.Family);
	
	FIntRect SrcRect = View.ViewRect;
	FIntRect DestRect = View.ViewRect;
	FIntPoint SrcSize = InputDesc->Extent;

	const FSceneRenderTargetItem& DestRenderTarget = PassOutputs[0].RequestSurface(Context);

	// Set the view family's render target/viewport.
	RHISetRenderTarget(DestRenderTarget.TargetableTexture, FTextureRHIRef());	
	Context.SetViewportAndCallRHI(DestRect);

	// set the state
	RHISetBlendState(TStaticBlendState<>::GetRHI());
	RHISetRasterizerState(TStaticRasterizerState<>::GetRHI());
	RHISetDepthStencilState(TStaticDepthStencilState<false,CF_Always>::GetRHI());

	SetShaderTempl<false>(Context);

	// Draw a quad mapping scene color to the view's render target
	DrawRectangle(
		0, 0,
		DestRect.Width(), DestRect.Height(),
		SrcRect.Min.X, SrcRect.Min.Y,
		SrcRect.Width(), SrcRect.Height(),
		DestRect.Size(),
		SrcSize,
		EDRF_UseTriangleOptimization);

	// Now draw the requested tiles into the grid
	TShaderMapRef<FPostProcessVS> VertexShader(GetGlobalShaderMap());
	TShaderMapRef<FPostProcessVisualizeBufferPS<true> > PixelShader(GetGlobalShaderMap());

	RHISetBlendState(TStaticBlendState<CW_RGB, BO_Add, BF_SourceAlpha, BF_InverseSourceAlpha>::GetRHI());
	static FGlobalBoundShaderState BoundShaderState;

	SetGlobalBoundShaderState(BoundShaderState, GFilterVertexDeclaration.VertexDeclarationRHI, *VertexShader, *PixelShader);

	PixelShader->SetPS(Context);

	// Track the name and position of each tile we draw so we can write text labels over them
	struct LabelRecord
	{
		FString Label;
		int32 LocationX;
		int32 LocationY;
	};

	TArray<LabelRecord> Labels;

	const int32 MaxTilesX = 4;
	const int32 MaxTilesY = 4;
	const int32 TileWidth = DestRect.Width() / MaxTilesX;
	const int32 TileHeight = DestRect.Height() / MaxTilesY;
	int32 CurrentTileIndex = 0; 

	for (TArray<TileData>::TConstIterator It = Tiles.CreateConstIterator(); It; ++It, ++CurrentTileIndex)
	{
		FRenderingCompositeOutputRef Tile = It->Source;

		if (Tile.IsValid())
		{
			FTextureRHIRef Texture = Tile.GetOutput()->PooledRenderTarget->GetRenderTargetItem().TargetableTexture;

			int32 TileX = CurrentTileIndex % MaxTilesX;
			int32 TileY = CurrentTileIndex / MaxTilesX;

			PixelShader->SetSourceTexture(Texture);

			DrawRectangle(
				TileX * TileWidth, TileY * TileHeight,
				TileWidth, TileHeight,
				SrcRect.Min.X, SrcRect.Min.Y,
				SrcRect.Width(), SrcRect.Height(),
				DestRect.Size(),
				SrcSize,
				EDRF_Default);

			Labels.Add(LabelRecord());
			Labels.Last().Label = It->Name;
			Labels.Last().LocationX = 8 + TileX * TileWidth;
			Labels.Last().LocationY = (TileY + 1) * TileHeight - 19;
		}
	}

	// Draw tile labels

	// this is a helper class for FCanvas to be able to get screen size
//.........这里部分代码省略.........

开发者ID:Tigrouzen，项目名称:UnrealEngine-4，代码行数:101，代码来源:PostProcessVisualizeBuffer.cpp

示例17: SCOPED_DRAW_EVENT

void FRCPassPostProcessLensFlares::Process(FRenderingCompositePassContext& Context)
{
	SCOPED_DRAW_EVENT(Context.RHICmdList, LensFlares);

	const FPooledRenderTargetDesc* InputDesc1 = GetInputDesc(ePId_Input0);
	const FPooledRenderTargetDesc* InputDesc2 = GetInputDesc(ePId_Input1);
	
	if(!InputDesc1 || !InputDesc2)
	{
		// input is not hooked up correctly
		return;
	}

	const FSceneView& View = Context.View;
	const FSceneViewFamily& ViewFamily = *(View.Family);

	FIntPoint TexSize1 = InputDesc1->Extent;
	FIntPoint TexSize2 = InputDesc2->Extent;

	uint32 ScaleToFullRes1 = GSceneRenderTargets.GetBufferSizeXY().X / TexSize1.X;
	uint32 ScaleToFullRes2 = GSceneRenderTargets.GetBufferSizeXY().X / TexSize2.X;

	FIntRect ViewRect1 = FIntRect::DivideAndRoundUp(View.ViewRect, ScaleToFullRes1);
	FIntRect ViewRect2 = FIntRect::DivideAndRoundUp(View.ViewRect, ScaleToFullRes2);

	FIntPoint ViewSize1 = ViewRect1.Size();
	FIntPoint ViewSize2 = ViewRect2.Size();

	const FSceneRenderTargetItem& DestRenderTarget = PassOutputs[0].RequestSurface(Context);

	// Set the view family's render target/viewport.
	SetRenderTarget(Context.RHICmdList, DestRenderTarget.TargetableTexture, FTextureRHIRef());
		
	// is optimized away if possible (RT size=view size, )
	Context.RHICmdList.Clear(true, FLinearColor::Black, false, 1.0f, false, 0, ViewRect1);

	Context.SetViewportAndCallRHI(ViewRect1);

	// set the state
	Context.RHICmdList.SetBlendState(TStaticBlendState<>::GetRHI());
	Context.RHICmdList.SetRasterizerState(TStaticRasterizerState<>::GetRHI());
	Context.RHICmdList.SetDepthStencilState(TStaticDepthStencilState<false, CF_Always>::GetRHI());

	TShaderMapRef<FPostProcessVS> VertexShader(Context.GetShaderMap());

	
	// setup background (bloom), can be implemented to use additive blending to avoid the read here
	{
		TShaderMapRef<FPostProcessLensFlareBasePS> PixelShader(Context.GetShaderMap());

		static FGlobalBoundShaderState BoundShaderState;
		
		SetGlobalBoundShaderState(Context.RHICmdList, Context.GetFeatureLevel(), BoundShaderState, GFilterVertexDeclaration.VertexDeclarationRHI, *VertexShader, *PixelShader);

		VertexShader->SetParameters(Context);
		PixelShader->SetParameters(Context);

		// Draw a quad mapping scene color to the view's render target
		DrawRectangle(
			Context.RHICmdList,
			0, 0,
			ViewSize1.X, ViewSize1.Y,
			ViewRect1.Min.X, ViewRect1.Min.Y,
			ViewSize1.X, ViewSize1.Y,
			ViewSize1,
			TexSize1,
			*VertexShader,
			EDRF_UseTriangleOptimization);
	}

	// additive blend
	Context.RHICmdList.SetBlendState(TStaticBlendState<CW_RGB, BO_Add, BF_One, BF_One>::GetRHI());

	// add lens flares on top of that
	{
		TShaderMapRef<FPostProcessLensFlaresPS> PixelShader(Context.GetShaderMap());

		static FGlobalBoundShaderState BoundShaderState;
		
		SetGlobalBoundShaderState(Context.RHICmdList, Context.GetFeatureLevel(), BoundShaderState, GFilterVertexDeclaration.VertexDeclarationRHI, *VertexShader, *PixelShader);

		FVector2D TexScaleValue = FVector2D(TexSize2) / ViewSize2;

		VertexShader->SetParameters(Context);
		PixelShader->SetParameters(Context, TexScaleValue);

		// todo: expose
		const uint32 Count = 8;

		// we assume the center of the view is the center of the lens (would not be correct for tiled rendering)
		FVector2D Center = FVector2D(ViewSize1) * 0.5f;

		FLinearColor LensFlareHDRColor = Context.View.FinalPostProcessSettings.LensFlareTint * Context.View.FinalPostProcessSettings.LensFlareIntensity;
	
		// to get the same brightness with 4x more quads (TileSize=1 in LensBlur)
		LensFlareHDRColor.R *= 0.25f;
		LensFlareHDRColor.G *= 0.25f;
		LensFlareHDRColor.B *= 0.25f;

		for(uint32 i = 0; i < Count; ++i)
//.........这里部分代码省略.........

开发者ID:xiangyuan，项目名称:Unreal4，代码行数:101，代码来源:PostProcessLensFlares.cpp

示例18: SCOPED_DRAW_EVENT

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