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());
}
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());
}
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());
}
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());
}
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());
}
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());
}
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());
}
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());
}
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());
}
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;
}
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());
}
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());
}
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());
}
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());
}
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);
}
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
class FRenderTargetTemp : public FRenderTarget
{
public:
const FSceneView& View;
const FTexture2DRHIRef Texture;
FRenderTargetTemp(const FSceneView& InView, const FTexture2DRHIRef InTexture)
: View(InView), Texture(InTexture)
{
}
virtual FIntPoint GetSizeXY() const
{
return View.ViewRect.Size();
};
virtual const FTexture2DRHIRef& GetRenderTargetTexture() const
{
return Texture;
}
} TempRenderTarget(View, (const FTexture2DRHIRef&)DestRenderTarget.TargetableTexture);
FCanvas Canvas(&TempRenderTarget, NULL, ViewFamily.CurrentRealTime, ViewFamily.CurrentWorldTime, ViewFamily.DeltaWorldTime);
FLinearColor LabelColor(1, 1, 0);
for (auto It = Labels.CreateConstIterator(); It; ++It)
{
Canvas.DrawShadowedString(It->LocationX, It->LocationY, *It->Label, GetStatsFont(), LabelColor);
}
Canvas.Flush();
RHICopyToResolveTarget(DestRenderTarget.TargetableTexture, DestRenderTarget.ShaderResourceTexture, false, FResolveParams());
}
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)
{
FLinearColor FlareColor = Context.View.FinalPostProcessSettings.LensFlareTints[i % 8];
float NormalizedAlpha = FlareColor.A;
float Alpha = NormalizedAlpha * 7.0f - 3.5f;
// scale to blur outside of the view (only if we use LensBlur)
Alpha *= SizeScale;
// set the individual flare color
SetShaderValue(Context.RHICmdList, PixelShader->GetPixelShader(), PixelShader->FlareColor, FlareColor * LensFlareHDRColor);
// Draw a quad mapping scene color to the view's render target
DrawRectangle(
Context.RHICmdList,
Center.X - 0.5f * ViewSize1.X * Alpha, Center.Y - 0.5f * ViewSize1.Y * Alpha,
ViewSize1.X * Alpha, ViewSize1.Y * Alpha,
ViewRect2.Min.X, ViewRect2.Min.Y,
ViewSize2.X, ViewSize2.Y,
ViewSize1,
TexSize2,
*VertexShader,
EDRF_Default);
}
}
Context.RHICmdList.CopyToResolveTarget(DestRenderTarget.TargetableTexture, DestRenderTarget.ShaderResourceTexture, false, FResolveParams());
}
void FRCPassPostProcessVisualizeHDR::Process(FRenderingCompositePassContext& Context)
{
SCOPED_DRAW_EVENT(PostProcessVisualizeHDR, 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());
TShaderMapRef<FPostProcessVS> VertexShader(GetGlobalShaderMap());
TShaderMapRef<FPostProcessVisualizeHDRPS> PixelShader(GetGlobalShaderMap());
static FGlobalBoundShaderState BoundShaderState;
SetGlobalBoundShaderState(BoundShaderState, GFilterVertexDeclaration.VertexDeclarationRHI, *VertexShader, *PixelShader);
PixelShader->SetPS(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(),
DestRect.Size(),
SrcSize,
EDRF_UseTriangleOptimization);
// this is a helper class for FCanvas to be able to get screen size
class FRenderTargetTemp : public FRenderTarget
{
public:
const FSceneView& View;
const FTexture2DRHIRef Texture;
FRenderTargetTemp(const FSceneView& InView, const FTexture2DRHIRef InTexture)
: View(InView), Texture(InTexture)
{
}
virtual FIntPoint GetSizeXY() const
{
return View.ViewRect.Size();
};
virtual const FTexture2DRHIRef& GetRenderTargetTexture() const
{
return Texture;
}
} TempRenderTarget(View, (const FTexture2DRHIRef&)DestRenderTarget.TargetableTexture);
FCanvas Canvas(&TempRenderTarget, NULL, ViewFamily.CurrentRealTime, ViewFamily.CurrentWorldTime, ViewFamily.DeltaWorldTime);
float X = 30;
float Y = 8;
const float YStep = 14;
const float ColumnWidth = 250;
FString Line;
Line = FString::Printf(TEXT("HDR Histogram (Logarithmic, max of RGB)"));
Canvas.DrawShadowedString( X, Y += YStep, *Line, GetStatsFont(), FLinearColor(1, 1, 1));
Y += 160;
float MinX = 64 + 10;
float MaxY = View.ViewRect.Max.Y - 64;
float SizeX = View.ViewRect.Size().X - 64 * 2 - 20;
for(uint32 i = 0; i <= 4; ++i)
{
int XAdd = (int)(i * SizeX / 4);
float HistogramPosition = i / 4.0f;
float LogValue = FMath::Lerp(View.FinalPostProcessSettings.HistogramLogMin, View.FinalPostProcessSettings.HistogramLogMax, HistogramPosition);
Line = FString::Printf(TEXT("%.2g"), LogValue);
Canvas.DrawShadowedString( MinX + XAdd - 5, MaxY, *Line, GetStatsFont(), FLinearColor(1, 0.3f, 0.3f));
Line = LogToString(LogValue);
Canvas.DrawShadowedString( MinX + XAdd - 5, MaxY + YStep, *Line, GetStatsFont(), FLinearColor(0.3f, 0.3f, 1));
}
Y += 3 * YStep;
Line = FString::Printf(TEXT("%g%% .. %g%%"), View.FinalPostProcessSettings.AutoExposureLowPercent, View.FinalPostProcessSettings.AutoExposureHighPercent);
Canvas.DrawShadowedString( X, Y += YStep, TEXT("EyeAdaptationPercent Low/High:"), GetStatsFont(), FLinearColor(1, 1, 1));
Canvas.DrawShadowedString( X + ColumnWidth, Y, *Line, GetStatsFont(), FLinearColor(1, 1, 1));
Line = FString::Printf(TEXT("%g .. %g"), View.FinalPostProcessSettings.AutoExposureMinBrightness, View.FinalPostProcessSettings.AutoExposureMaxBrightness);
Canvas.DrawShadowedString( X, Y += YStep, TEXT("EyeAdaptationBrightness Min/Max:"), GetStatsFont(), FLinearColor(1, 1, 1));
Canvas.DrawShadowedString( X + ColumnWidth, Y, *Line, GetStatsFont(), FLinearColor(0.3f, 0.3f, 1));
Line = FString::Printf(TEXT("%g / %g"), View.FinalPostProcessSettings.AutoExposureSpeedUp, View.FinalPostProcessSettings.AutoExposureSpeedDown);
Canvas.DrawShadowedString( X, Y += YStep, TEXT("EyeAdaptionSpeed Up/Down:"), GetStatsFont(), FLinearColor(1, 1, 1));
Canvas.DrawShadowedString( X + ColumnWidth, Y, *Line, GetStatsFont(), FLinearColor(1, 1, 1));
Line = FString::Printf(TEXT("%g"), View.FinalPostProcessSettings.AutoExposureBias);
Canvas.DrawShadowedString( X, Y += YStep, TEXT("Exposure Offset: "), GetStatsFont(), FLinearColor(1, 1, 1));
Canvas.DrawShadowedString( X + ColumnWidth, Y, *Line, GetStatsFont(), FLinearColor(1, 0.3f, 0.3f));
Line = FString::Printf(TEXT("%g .. %g (log2)"),
View.FinalPostProcessSettings.HistogramLogMin, View.FinalPostProcessSettings.HistogramLogMax);
Canvas.DrawShadowedString( X, Y += YStep, TEXT("HistogramLog Min/Max:"), GetStatsFont(), FLinearColor(1, 1, 1));
Canvas.DrawShadowedString( X + ColumnWidth, Y, *Line, GetStatsFont(), FLinearColor(1, 0.3f, 0.3f));
Line = FString::Printf(TEXT("%s .. %s (Value)"),
*LogToString(View.FinalPostProcessSettings.HistogramLogMin), *LogToString(View.FinalPostProcessSettings.HistogramLogMax));
Canvas.DrawShadowedString( X + ColumnWidth, Y+= YStep, *Line, GetStatsFont(), FLinearColor(0.3f, 0.3f, 1));
Canvas.Flush();
RHICopyToResolveTarget(DestRenderTarget.TargetableTexture, DestRenderTarget.ShaderResourceTexture, false, FResolveParams());
}
void FRCPassPostProcessBokehDOFRecombine::Process(FRenderingCompositePassContext& Context)
{
uint32 Method = 2;
FRenderingCompositeOutputRef* Input1 = GetInput(ePId_Input1);
if(Input1 && Input1->GetPass())
{
if(GetInput(ePId_Input2)->GetPass())
{
Method = 3;
}
else
{
Method = 1;
}
}
else
{
check(GetInput(ePId_Input2)->GetPass());
}
FSceneRenderTargets& SceneContext = FSceneRenderTargets::Get(Context.RHICmdList);
FIntPoint OutScaledSize;
float OutScale;
SceneContext.GetSeparateTranslucencyDimensions(OutScaledSize, OutScale);
const bool bUseNearestDepthNeighborUpsample =
CVarSeparateTranslucencyUpsampleMode.GetValueOnRenderThread() != 0
&& FMath::Abs(OutScale - .5f) < .001f;
if (Method != 1 && bUseNearestDepthNeighborUpsample)
{
Method += 2;
}
const FSceneView& View = Context.View;
SCOPED_DRAW_EVENTF(Context.RHICmdList, BokehDOFRecombine, TEXT("BokehDOFRecombine#%d %dx%d"), Method, View.ViewRect.Width(), View.ViewRect.Height());
const FPooledRenderTargetDesc* InputDesc0 = GetInputDesc(ePId_Input0);
const FPooledRenderTargetDesc* InputDesc1 = GetInputDesc(ePId_Input1);
FIntPoint TexSize = InputDesc1 ? InputDesc1->Extent : InputDesc0->Extent;
// usually 1, 2, 4 or 8
uint32 ScaleToFullRes = FSceneRenderTargets::Get(Context.RHICmdList).GetBufferSizeXY().X / TexSize.X;
FIntRect HalfResViewRect = FIntRect::DivideAndRoundUp(View.ViewRect, ScaleToFullRes);
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, View.ViewRect);
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());
switch(Method)
{
case 1: SetShader<1>(Context); break;
case 2: SetShader<2>(Context); break;
case 3: SetShader<3>(Context); break;
case 4: SetShader<4>(Context); break;
case 5: SetShader<5>(Context); break;
default:
check(0);
}
TShaderMapRef<FPostProcessVS> VertexShader(Context.GetShaderMap());
DrawPostProcessPass(
Context.RHICmdList,
0, 0,
View.ViewRect.Width(), View.ViewRect.Height(),
HalfResViewRect.Min.X, HalfResViewRect.Min.Y,
HalfResViewRect.Width(), HalfResViewRect.Height(),
View.ViewRect.Size(),
TexSize,
*VertexShader,
View.StereoPass,
Context.HasHmdMesh(),
EDRF_UseTriangleOptimization);
Context.RHICmdList.CopyToResolveTarget(DestRenderTarget.TargetableTexture, DestRenderTarget.ShaderResourceTexture, false, FResolveParams());
}
void FRCPassPostProcessDownsample::Process(FRenderingCompositePassContext& Context)
{
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;
// e.g. 4 means the input texture is 4x smaller than the buffer size
uint32 ScaleFactor = FMath::DivideAndRoundUp(FSceneRenderTargets::Get(Context.RHICmdList).GetBufferSizeXY().Y, SrcSize.Y);
FIntRect SrcRect = View.ViewRect / ScaleFactor;
FIntRect DestRect = FIntRect::DivideAndRoundUp(SrcRect, 2);
SrcRect = DestRect * 2;
SCOPED_DRAW_EVENTF(Context.RHICmdList, Downsample, TEXT("Downsample %dx%d"), DestRect.Width(), DestRect.Height());
const FSceneRenderTargetItem& DestRenderTarget = PassOutputs[0].RequestSurface(Context);
// check if we have to clear the whole surface.
// Otherwise perform the clear when the dest rectangle has been computed.
auto FeatureLevel = Context.View.GetFeatureLevel();
if (FeatureLevel == ERHIFeatureLevel::ES2 || FeatureLevel == ERHIFeatureLevel::ES3_1)
{
// Set the view family's render target/viewport.
SetRenderTarget(Context.RHICmdList, DestRenderTarget.TargetableTexture, FTextureRHIRef(), ESimpleRenderTargetMode::EClearColorAndDepth);
Context.SetViewportAndCallRHI(0, 0, 0.0f, DestSize.X, DestSize.Y, 1.0f );
}
else
{
// Set the view family's render target/viewport.
SetRenderTarget(Context.RHICmdList, DestRenderTarget.TargetableTexture, FTextureRHIRef(), ESimpleRenderTargetMode::EExistingColorAndDepth);
Context.SetViewportAndCallRHI(0, 0, 0.0f, DestSize.X, DestSize.Y, 1.0f );
DrawClearQuad(Context.RHICmdList, Context.GetFeatureLevel(), true, FLinearColor(0, 0, 0, 0), false, 1.0f, false, 0, DestSize, DestRect);
}
// set the state
Context.RHICmdList.SetBlendState(TStaticBlendState<>::GetRHI());
Context.RHICmdList.SetRasterizerState(TStaticRasterizerState<>::GetRHI());
Context.RHICmdList.SetDepthStencilState(TStaticDepthStencilState<false, CF_Always>::GetRHI());
// InflateSize increases the size of the source/dest rectangle to compensate for bilinear reads and UIBlur pass requirements.
int32 InflateSize;
// if second input is hooked up
if (IsDepthInputAvailable())
{
// also put depth in alpha
InflateSize = 2;
SetShader<2>(Context, InputDesc);
}
else
{
if (Quality == 0)
{
SetShader<0>(Context, InputDesc);
InflateSize = 1;
}
else
{
SetShader<1>(Context, InputDesc);
InflateSize = 2;
}
}
TShaderMapRef<FPostProcessDownsampleVS> VertexShader(Context.GetShaderMap());
DrawPostProcessPass(
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,
View.StereoPass,
false, // This pass is input for passes that can't use the hmd mask, so we need to disable it to ensure valid input data
EDRF_UseTriangleOptimization);
Context.RHICmdList.CopyToResolveTarget(DestRenderTarget.TargetableTexture, DestRenderTarget.ShaderResourceTexture, false, FResolveParams());
}
void FRCPassPostProcessWeightedSampleSum::Process(FRenderingCompositePassContext& Context)
{
const FSceneView& View = Context.View;
FRenderingCompositeOutput *Input = PassInputs[0].GetOutput();
// input is not hooked up correctly
check(Input);
const FPooledRenderTargetDesc* InputDesc = GetInputDesc(ePId_Input0);
// input is not hooked up correctly
check(InputDesc);
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
FIntPoint SrcScaleFactor = GSceneRenderTargets.GetBufferSizeXY() / SrcSize;
FIntPoint DstScaleFactor = GSceneRenderTargets.GetBufferSizeXY() / DestSize;
TRefCountPtr<IPooledRenderTarget> InputPooledElement = Input->RequestInput();
check(!InputPooledElement->IsFree());
const FSceneRenderTargetItem& DestRenderTarget = PassOutputs[0].RequestSurface(Context);
FVector2D InvSrcSize(1.0f / SrcSize.X, 1.0f / SrcSize.Y);
// we scale by width because FOV is defined horizontally
float SrcSizeForThisAxis = View.ViewRect.Width() / (float)SrcScaleFactor.X;
// in texel (input resolution), /2 as we use the diameter, 100 as we use percent
float EffectiveBlurRadius = SizeScale * SrcSizeForThisAxis / 2 / 100.0f;
FVector2D BlurOffsets[MAX_FILTER_SAMPLES];
FLinearColor BlurWeights[MAX_FILTER_SAMPLES];
FVector2D OffsetAndWeight[MAX_FILTER_SAMPLES];
const auto FeatureLevel = Context.View.GetFeatureLevel();
// compute 1D filtered samples
uint32 MaxNumSamples = GetMaxNumSamples(FeatureLevel);
uint32 NumSamples = Compute1DGaussianFilterKernel(FeatureLevel, EffectiveBlurRadius, OffsetAndWeight, MaxNumSamples, FilterShape, CrossCenterWeight);
SCOPED_DRAW_EVENTF(Context.RHICmdList, PostProcessWeightedSampleSum, TEXT("PostProcessWeightedSampleSum#%d"), NumSamples);
// compute weights as weighted contributions of the TintValue
for(uint32 i = 0; i < NumSamples; ++i)
{
BlurWeights[i] = TintValue * OffsetAndWeight[i].Y;
}
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());
const FTextureRHIRef& FilterTexture = InputPooledElement->GetRenderTargetItem().ShaderResourceTexture;
FRenderingCompositeOutput *Input1 = PassInputs[1].GetOutput();
uint32 CombineMethodInt = 0;
if(CombineMethod == EFCM_MaxMagnitude)
{
CombineMethodInt = 2;
}
// can be optimized
FTextureRHIRef AdditiveTexture;
if(Input1)
{
TRefCountPtr<IPooledRenderTarget> InputPooledElement1 = Input1->RequestInput();
AdditiveTexture = InputPooledElement1->GetRenderTargetItem().ShaderResourceTexture;
check(CombineMethod == EFCM_Weighted);
CombineMethodInt = 1;
}
bool bDoFastBlur = DoFastBlur();
if (FilterShape == EFS_Horiz)
{
float YOffset = bDoFastBlur ? (InvSrcSize.Y * 0.5f) : 0.0f;
for (uint32 i = 0; i < NumSamples; ++i)
{
BlurOffsets[i] = FVector2D(InvSrcSize.X * OffsetAndWeight[i].X, YOffset);
}
}
else
{
float YOffset = bDoFastBlur ? -(InvSrcSize.Y * 0.5f) : 0.0f;
for (uint32 i = 0; i < NumSamples; ++i)
{
BlurOffsets[i] = FVector2D(0, InvSrcSize.Y * OffsetAndWeight[i].X + YOffset);
}
}
FShader* VertexShader = nullptr;
SetFilterShaders(
Context.RHICmdList,
FeatureLevel,
TStaticSamplerState<SF_Bilinear,AM_Border,AM_Border,AM_Clamp>::GetRHI(),
FilterTexture,
AdditiveTexture,
CombineMethodInt,
BlurOffsets,
BlurWeights,
NumSamples,
&VertexShader
);
bool bRequiresClear = true;
// check if we have to clear the whole surface.
// Otherwise perform the clear when the dest rectangle has been computed.
if (FeatureLevel == ERHIFeatureLevel::ES2 || FeatureLevel == ERHIFeatureLevel::ES3_1)
{
Context.RHICmdList.Clear(true, FLinearColor(0, 0, 0, 0), false, 1.0f, false, 0, FIntRect());
bRequiresClear = false;
}
FIntRect SrcRect = FIntRect::DivideAndRoundUp(View.ViewRect, SrcScaleFactor);
FIntRect DestRect = FIntRect::DivideAndRoundUp(View.ViewRect, DstScaleFactor);
DrawQuad(Context.RHICmdList, bDoFastBlur, SrcRect, DestRect, bRequiresClear, DestSize, SrcSize, VertexShader);
Context.RHICmdList.CopyToResolveTarget(DestRenderTarget.TargetableTexture, DestRenderTarget.ShaderResourceTexture, false, FResolveParams());
}
void FRCPassPostProcessSubsurface::Process(FRenderingCompositePassContext& Context)
{
const FPooledRenderTargetDesc* InputDesc = GetInputDesc(ePId_Input0);
check(InputDesc);
{
const IPooledRenderTarget* PooledRT = GetSubsufaceProfileTexture_RT(Context.RHICmdList);
check(PooledRT);
// for debugging
GRenderTargetPool.VisualizeTexture.SetCheckPoint(Context.RHICmdList, PooledRT);
}
const FSceneView& View = Context.View;
const FSceneViewFamily& ViewFamily = *(View.Family);
FIntPoint SrcSize = InputDesc->Extent;
FIntPoint DestSize = PassOutputs[0].RenderTargetDesc.Extent;
check(DestSize.X);
check(DestSize.Y);
check(SrcSize.X);
check(SrcSize.Y);
FIntRect SrcRect = FIntRect(0, 0, DestSize.X, DestSize.Y);
FIntRect DestRect = SrcRect;
TRefCountPtr<IPooledRenderTarget> NewSceneColor;
const FSceneRenderTargetItem* DestRenderTarget;
{
DestRenderTarget = &PassOutputs[0].RequestSurface(Context);
check(DestRenderTarget);
}
// 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 );
Context.RHICmdList.SetBlendState(TStaticBlendState<>::GetRHI());
Context.RHICmdList.SetRasterizerState(TStaticRasterizerState<>::GetRHI());
Context.RHICmdList.SetDepthStencilState(TStaticDepthStencilState<false, CF_Always>::GetRHI());
TShaderMapRef<FPostProcessVS> VertexShader(Context.GetShaderMap());
SCOPED_DRAW_EVENTF(Context.RHICmdList, SubsurfacePass, TEXT("SubsurfaceDirection#%d"), Direction);
uint32 SampleSet = FMath::Clamp(CVarSSSSampleSet.GetValueOnRenderThread(), 0, 2);
if (Direction == 0)
{
SetSubsurfaceShaderSampleSet<0>(Context, VertexShader, SampleSet);
}
else
{
SetSubsurfaceShaderSampleSet<1>(Context, VertexShader, SampleSet);
}
DrawPostProcessPass(
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,
View.StereoPass,
Context.HasHmdMesh(),
EDRF_UseTriangleOptimization);
Context.RHICmdList.CopyToResolveTarget(DestRenderTarget->TargetableTexture, DestRenderTarget->ShaderResourceTexture, false, FResolveParams());
}
void FRCPassPostProcessSubsurfaceRecombine::Process(FRenderingCompositePassContext& Context)
{
FSceneRenderTargets& SceneContext = FSceneRenderTargets::Get(Context.RHICmdList);
const FPooledRenderTargetDesc* InputDesc = GetInputDesc(ePId_Input0);
check(InputDesc);
const FSceneView& View = Context.View;
const FSceneViewFamily& ViewFamily = *(View.Family);
FIntPoint SrcSize = InputDesc->Extent;
FIntPoint DestSize = SceneContext.GetBufferSizeXY();
check(DestSize.X);
check(DestSize.Y);
check(SrcSize.X);
check(SrcSize.Y);
FIntRect SrcRect = FIntRect(0, 0, InputDesc->Extent.X, InputDesc->Extent.Y);
FIntRect DestRect = View.ViewRect;
TRefCountPtr<IPooledRenderTarget>& SceneColor = SceneContext.GetSceneColor();
const FSceneRenderTargetItem& DestRenderTarget = PassOutputs[0].RequestSurface(Context);
// Set the view family's render target/viewport.
SetRenderTarget(Context.RHICmdList, DestRenderTarget.TargetableTexture, FTextureRHIRef());
Context.RHICmdList.SetBlendState(TStaticBlendState<>::GetRHI());
Context.RHICmdList.SetRasterizerState(TStaticRasterizerState<>::GetRHI());
Context.RHICmdList.SetDepthStencilState(TStaticDepthStencilState<false, CF_Always>::GetRHI());
CopyOverOtherViewportsIfNeeded(Context, View);
Context.SetViewportAndCallRHI(0, 0, 0.0f, DestSize.X, DestSize.Y, 1.0f );
TShaderMapRef<FPostProcessVS> VertexShader(Context.GetShaderMap());
if(GetInput(ePId_Input1))
{
if(bHalfRes)
{
SetSubsurfaceRecombineShader<1>(Context, VertexShader);
}
else
{
SetSubsurfaceRecombineShader<0>(Context, VertexShader);
}
}
else
{
// needed for Scalability
SetSubsurfaceRecombineShader<2>(Context, VertexShader);
}
DrawPostProcessPass(
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,
View.StereoPass,
Context.HasHmdMesh(),
EDRF_UseTriangleOptimization);
Context.RHICmdList.CopyToResolveTarget(DestRenderTarget.TargetableTexture, DestRenderTarget.ShaderResourceTexture, false, FResolveParams());
// replace the current SceneColor with this one
SceneContext.SetSceneColor(PassOutputs[0].PooledRenderTarget);
PassOutputs[0].PooledRenderTarget.SafeRelease();
}
void FRCPassPostProcessSubsurfaceSetup::Process(FRenderingCompositePassContext& Context)
{
SCOPED_DRAW_EVENT(Context.RHICmdList, SubsurfaceSetup);
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;
FIntRect DestRect = FIntRect(0, 0, DestSize.X, DestSize.Y);
FIntRect SrcRect = View.ViewRect;
if(bHalfRes)
{
// upscale rectangle to not slightly scale (might miss a pixel)
SrcRect = DestRect * 2 + View.ViewRect.Min;
}
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());
if(bHalfRes)
{
SetSubsurfaceSetupShader<1>(Context);
}
else
{
SetSubsurfaceSetupShader<0>(Context);
}
// Draw a quad mapping scene color to the view's render target
TShaderMapRef<FPostProcessVS> VertexShader(Context.GetShaderMap());
DrawPostProcessPass(
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,
View.StereoPass,
Context.HasHmdMesh(),
EDRF_UseTriangleOptimization);
Context.RHICmdList.CopyToResolveTarget(DestRenderTarget.TargetableTexture, DestRenderTarget.ShaderResourceTexture, false, FResolveParams());
}
void FRCPassPostProcessGBufferHints::Process(FRenderingCompositePassContext& Context)
{
SCOPED_DRAW_EVENT(Context.RHICmdList, GBufferHints);
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.
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<FPostProcessGBufferHintsPS> PixelShader(Context.GetShaderMap());
static FGlobalBoundShaderState BoundShaderState;
SetGlobalBoundShaderState(Context.RHICmdList, Context.GetFeatureLevel(), BoundShaderState, GFilterVertexDeclaration.VertexDeclarationRHI, *VertexShader, *PixelShader);
PixelShader->SetPS(Context);
// Draw a quad mapping scene color to the view's render target
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);
// this is a helper class for FCanvas to be able to get screen size
class FRenderTargetTemp : public FRenderTarget
{
public:
const FSceneView& View;
const FTexture2DRHIRef Texture;
FRenderTargetTemp(const FSceneView& InView, const FTexture2DRHIRef InTexture)
: View(InView), Texture(InTexture)
{
}
virtual FIntPoint GetSizeXY() const
{
return View.ViewRect.Size();
};
virtual const FTexture2DRHIRef& GetRenderTargetTexture() const
{
return Texture;
}
} TempRenderTarget(View, (const FTexture2DRHIRef&)DestRenderTarget.TargetableTexture);
FCanvas Canvas(&TempRenderTarget, NULL, ViewFamily.CurrentRealTime, ViewFamily.CurrentWorldTime, ViewFamily.DeltaWorldTime, View.GetFeatureLevel());
float X = 30;
float Y = 8;
const float YStep = 14;
const float ColumnWidth = 250;
FString Line;
Line = FString::Printf(TEXT("GBufferHints"));
Canvas.DrawShadowedString( X, Y += YStep, *Line, GetStatsFont(), FLinearColor(1, 1, 1));
Y += YStep;
Line = FString::Printf(TEXT("Yellow: Unrealistic material (In nature even black materials reflect quite some light)"));
Canvas.DrawShadowedString( X, Y += YStep, *Line, GetStatsFont(), FLinearColor(0.8f, 0.8f, 0));
Line = FString::Printf(TEXT("Red: Impossive material (this material emits more light than it receives)"));
Canvas.DrawShadowedString( X, Y += YStep, *Line, GetStatsFont(), FLinearColor(1, 0, 0));
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(-1);
}
void FRCPassPostProcessDOFRecombine::Process(FRenderingCompositePassContext& Context)
{
SCOPED_DRAW_EVENT(Context.RHICmdList, DOFRecombine);
const FPooledRenderTargetDesc* InputDesc = GetInputDesc(ePId_Input1);
if(!InputDesc)
{
// input is not hooked up correctly
return;
}
const FSceneView& View = Context.View;
const auto FeatureLevel = Context.GetFeatureLevel();
auto ShaderMap = Context.GetShaderMap();
FIntPoint TexSize = InputDesc->Extent;
// usually 1, 2, 4 or 8
uint32 ScaleToFullRes = FSceneRenderTargets::Get(Context.RHICmdList).GetBufferSizeXY().X / TexSize.X;
FIntRect HalfResViewRect = View.ViewRect / ScaleToFullRes;
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, View.ViewRect);
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<FPostProcessVS> VertexShader(ShaderMap);
if (bNearBlurEnabled)
{
static FGlobalBoundShaderState BoundShaderState;
TShaderMapRef< FPostProcessDOFRecombinePS<1> > PixelShader(ShaderMap);
SetGlobalBoundShaderState(Context.RHICmdList, FeatureLevel, BoundShaderState, GFilterVertexDeclaration.VertexDeclarationRHI, *VertexShader, *PixelShader);
PixelShader->SetParameters(Context);
}
else
{
static FGlobalBoundShaderState BoundShaderState;
TShaderMapRef< FPostProcessDOFRecombinePS<0> > PixelShader(ShaderMap);
SetGlobalBoundShaderState(Context.RHICmdList, FeatureLevel, BoundShaderState, GFilterVertexDeclaration.VertexDeclarationRHI, *VertexShader, *PixelShader);
PixelShader->SetParameters(Context);
}
VertexShader->SetParameters(Context);
DrawPostProcessPass(
Context.RHICmdList,
0, 0,
View.ViewRect.Width(), View.ViewRect.Height(),
HalfResViewRect.Min.X, HalfResViewRect.Min.Y,
HalfResViewRect.Width(), HalfResViewRect.Height(),
View.ViewRect.Size(),
TexSize,
*VertexShader,
View.StereoPass,
Context.HasHmdMesh(),
EDRF_UseTriangleOptimization);
Context.RHICmdList.CopyToResolveTarget(DestRenderTarget.TargetableTexture, DestRenderTarget.ShaderResourceTexture, false, FResolveParams());
}
void FRCPassPostProcessMotionBlurSetup::Process(FRenderingCompositePassContext& Context)
{
SCOPED_DRAW_EVENT(MotionBlurSetup, 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;
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;
// Viewport size not even also causes issue
FIntRect DestRect = FIntRect::DivideAndRoundUp(SrcRect, 2);
const FSceneRenderTargetItem& DestRenderTarget0 = PassOutputs[0].RequestSurface(Context);
const FSceneRenderTargetItem& DestRenderTarget1 = PassOutputs[1].RequestSurface(Context);
// Set the view family's render target/viewport.
FTextureRHIParamRef RenderTargets[] =
{
DestRenderTarget0.TargetableTexture,
DestRenderTarget1.TargetableTexture
};
RHISetRenderTargets( ARRAY_COUNT(RenderTargets), RenderTargets, FTextureRHIParamRef(), 0, NULL );
// is optimized away if possible (RT size=view size, )
FLinearColor ClearColors[2] = {FLinearColor(0,0,0,0), FLinearColor(0,0,0,0)};
RHIClearMRT(true, 2, ClearColors, false, 1.0f, false, 0, DestRect);
Context.SetViewportAndCallRHI(0, 0, 0.0f, DestSize.X, DestSize.Y, 1.0f );
// set the state
RHISetBlendState(TStaticBlendState<>::GetRHI());
RHISetRasterizerState(TStaticRasterizerState<>::GetRHI());
RHISetDepthStencilState(TStaticDepthStencilState<false,CF_Always>::GetRHI());
{
TShaderMapRef<FPostProcessVS> VertexShader(GetGlobalShaderMap());
TShaderMapRef<FPostProcessMotionBlurSetupPS > PixelShader(GetGlobalShaderMap());
static FGlobalBoundShaderState BoundShaderState;
SetGlobalBoundShaderState(BoundShaderState, GFilterVertexDeclaration.VertexDeclarationRHI, *VertexShader, *PixelShader);
PixelShader->SetParameters(Context);
VertexShader->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(DestRenderTarget0.TargetableTexture, DestRenderTarget0.ShaderResourceTexture, false, FResolveParams());
RHICopyToResolveTarget(DestRenderTarget1.TargetableTexture, DestRenderTarget1.ShaderResourceTexture, false, FResolveParams());
}
void FRCPassPostProcessNoiseBlur::Process(FRenderingCompositePassContext& Context)
{
SCOPED_DRAW_EVENT(Context.RHICmdList, NoiseBlur);
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;
// e.g. 4 means the input texture is 4x smaller than the buffer size
uint32 ScaleFactor = FSceneRenderTargets::Get(Context.RHICmdList).GetBufferSizeXY().X / SrcSize.X;
FIntRect SrcRect = View.ViewRect / ScaleFactor;
FIntRect DestRect = SrcRect;
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(0, 0, 0, 0), false, 1.0f, false, 0, DestRect);
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());
if(Quality == 0)
{
SetNoiseBlurShader<0>(Context, Radius);
}
else if(Quality == 1)
{
SetNoiseBlurShader<1>(Context, Radius);
}
else
{
SetNoiseBlurShader<2>(Context, Radius);
}
// Draw a quad mapping scene color to the view's render target
TShaderMapRef<FPostProcessVS> 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_UseTriangleOptimization);
Context.RHICmdList.CopyToResolveTarget(DestRenderTarget.TargetableTexture, DestRenderTarget.ShaderResourceTexture, false, FResolveParams());
}
void FRCPassPostProcessDOFSetup::Process(FRenderingCompositePassContext& Context)
{
SCOPED_DRAW_EVENT(Context.RHICmdList, DOFSetup);
const FPooledRenderTargetDesc* InputDesc = GetInputDesc(ePId_Input0);
if(!InputDesc)
{
// input is not hooked up correctly
return;
}
uint32 NumRenderTargets = bNearBlurEnabled ? 2 : 1;
const FSceneView& View = Context.View;
const FSceneViewFamily& ViewFamily = *(View.Family);
const auto FeatureLevel = Context.GetFeatureLevel();
auto ShaderMap = Context.GetShaderMap();
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 = FSceneRenderTargets::Get(Context.RHICmdList).GetBufferSizeXY().X / SrcSize.X;
FIntRect SrcRect = View.ViewRect / ScaleFactor;
FIntRect DestRect = SrcRect / 2;
const FSceneRenderTargetItem& DestRenderTarget0 = PassOutputs[0].RequestSurface(Context);
const FSceneRenderTargetItem& DestRenderTarget1 = bNearBlurEnabled ? PassOutputs[1].RequestSurface(Context) : FSceneRenderTargetItem();
// Set the view family's render target/viewport.
FTextureRHIParamRef RenderTargets[2] =
{
DestRenderTarget0.TargetableTexture,
DestRenderTarget1.TargetableTexture
};
SetRenderTargets(Context.RHICmdList, NumRenderTargets, RenderTargets, FTextureRHIParamRef(), 0, NULL);
FLinearColor ClearColors[2] =
{
FLinearColor(0, 0, 0, 0),
FLinearColor(0, 0, 0, 0)
};
// is optimized away if possible (RT size=view size, )
Context.RHICmdList.ClearMRT(true, NumRenderTargets, ClearColors, false, 1.0f, false, 0, DestRect);
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());
TShaderMapRef<FPostProcessVS> VertexShader(ShaderMap);
if (bNearBlurEnabled)
{
static FGlobalBoundShaderState BoundShaderState;
TShaderMapRef< FPostProcessDOFSetupPS<1> > PixelShader(ShaderMap);
SetGlobalBoundShaderState(Context.RHICmdList, FeatureLevel, BoundShaderState, GFilterVertexDeclaration.VertexDeclarationRHI, *VertexShader, *PixelShader);
PixelShader->SetParameters(Context);
}
else
{
static FGlobalBoundShaderState BoundShaderState;
TShaderMapRef< FPostProcessDOFSetupPS<0> > PixelShader(ShaderMap);
SetGlobalBoundShaderState(Context.RHICmdList, FeatureLevel, BoundShaderState, GFilterVertexDeclaration.VertexDeclarationRHI, *VertexShader, *PixelShader);
PixelShader->SetParameters(Context);
}
VertexShader->SetParameters(Context);
DrawPostProcessPass(
Context.RHICmdList,
DestRect.Min.X, DestRect.Min.Y,
DestRect.Width() + 1, DestRect.Height() + 1,
SrcRect.Min.X, SrcRect.Min.Y,
SrcRect.Width() + 1, SrcRect.Height() + 1,
DestSize,
SrcSize,
*VertexShader,
View.StereoPass,
Context.HasHmdMesh(),
EDRF_UseTriangleOptimization);
Context.RHICmdList.CopyToResolveTarget(DestRenderTarget0.TargetableTexture, DestRenderTarget0.ShaderResourceTexture, false, FResolveParams());
Context.RHICmdList.CopyToResolveTarget(DestRenderTarget1.TargetableTexture, DestRenderTarget1.ShaderResourceTexture, false, FResolveParams());
}
void FRCPassPostProcessSubsurfaceVisualize::Process(FRenderingCompositePassContext& Context)
{
SCOPED_DRAW_EVENT(Context.RHICmdList, SubsurfaceSetup);
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;
FSceneRenderTargets& SceneContext = FSceneRenderTargets::Get(Context.RHICmdList);
// e.g. 4 means the input texture is 4x smaller than the buffer size
uint32 ScaleFactor = SceneContext.GetBufferSizeXY().X / SrcSize.X;
FIntRect SrcRect = View.ViewRect / ScaleFactor;
FIntRect DestRect = SrcRect;
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, DestRect);
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());
SetSubsurfaceVisualizeShader(Context);
// Draw a quad mapping scene color to the view's render target
TShaderMapRef<FPostProcessVS> 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_UseTriangleOptimization);
{
// this is a helper class for FCanvas to be able to get screen size
class FRenderTargetTemp : public FRenderTarget
{
public:
const FSceneView& View;
const FTexture2DRHIRef Texture;
FRenderTargetTemp(const FSceneView& InView, const FTexture2DRHIRef InTexture)
: View(InView), Texture(InTexture)
{
}
virtual FIntPoint GetSizeXY() const
{
return View.ViewRect.Size();
};
virtual const FTexture2DRHIRef& GetRenderTargetTexture() const
{
return Texture;
}
} TempRenderTarget(View, (const FTexture2DRHIRef&)DestRenderTarget.TargetableTexture);
FCanvas Canvas(&TempRenderTarget, NULL, ViewFamily.CurrentRealTime, ViewFamily.CurrentWorldTime, ViewFamily.DeltaWorldTime, Context.GetFeatureLevel());
float X = 30;
float Y = 28;
const float YStep = 14;
FString Line;
Line = FString::Printf(TEXT("Visualize Screen Space Subsurface Scattering"));
Canvas.DrawShadowedString(X, Y += YStep, *Line, GetStatsFont(), FLinearColor(1, 1, 1));
Y += YStep;
uint32 Index = 0;
while (GSubsurfaceProfileTextureObject.GetEntryString(Index++, Line))
{
Canvas.DrawShadowedString(X, Y += YStep, *Line, GetStatsFont(), FLinearColor(1, 1, 1));
}
Canvas.Flush_RenderThread(Context.RHICmdList);
}
Context.RHICmdList.CopyToResolveTarget(DestRenderTarget.TargetableTexture, DestRenderTarget.ShaderResourceTexture, false, FResolveParams());
// we no longer need the GBuffer
SceneContext.AdjustGBufferRefCount(-1);
}