/** Returns true if the Material and Vertex Factory combination require adjacency information. */
bool RequiresAdjacencyInformation( UMaterialInterface* Material, const FVertexFactoryType* VertexFactoryType, ERHIFeatureLevel::Type InFeatureLevel )
{
EMaterialTessellationMode TessellationMode = MTM_NoTessellation;
bool bEnableCrackFreeDisplacement = false;
if ( RHISupportsTessellation(GShaderPlatformForFeatureLevel[InFeatureLevel]) && VertexFactoryType->SupportsTessellationShaders() && Material )
{
if ( IsInRenderingThread() )
{
FMaterialRenderProxy* MaterialRenderProxy = Material->GetRenderProxy( false, false );
check( MaterialRenderProxy );
const FMaterial* MaterialResource = MaterialRenderProxy->GetMaterial(InFeatureLevel);
check( MaterialResource );
TessellationMode = MaterialResource->GetTessellationMode();
bEnableCrackFreeDisplacement = MaterialResource->IsCrackFreeDisplacementEnabled();
}
else if ( IsInGameThread() )
{
UMaterial* BaseMaterial = Material->GetMaterial();
check( BaseMaterial );
TessellationMode = (EMaterialTessellationMode)BaseMaterial->D3D11TessellationMode;
bEnableCrackFreeDisplacement = BaseMaterial->bEnableCrackFreeDisplacement;
}
else
{
UMaterialInterface::TMicRecursionGuard RecursionGuard;
const UMaterial* BaseMaterial = Material->GetMaterial_Concurrent(RecursionGuard);
check( BaseMaterial );
TessellationMode = (EMaterialTessellationMode)BaseMaterial->D3D11TessellationMode;
bEnableCrackFreeDisplacement = BaseMaterial->bEnableCrackFreeDisplacement;
}
}
return TessellationMode == MTM_PNTriangles || ( TessellationMode == MTM_FlatTessellation && bEnableCrackFreeDisplacement );
}
FRCPassPostProcessMaterial::FRCPassPostProcessMaterial(UMaterialInterface* InMaterialInterface, ERHIFeatureLevel::Type InFeatureLevel, EPixelFormat OutputFormatIN)
: MaterialInterface(InMaterialInterface), OutputFormat(OutputFormatIN)
{
FMaterialRenderProxy* Proxy = MaterialInterface->GetRenderProxy(false);
check(Proxy);
const FMaterial* Material = Proxy->GetMaterialNoFallback(InFeatureLevel);
if (!Material || Material->GetMaterialDomain() != MD_PostProcess)
{
MaterialInterface = UMaterial::GetDefaultMaterial(MD_PostProcess);
}
}
void UMaterialInterface::UpdateMaterialRenderProxy(FMaterialRenderProxy& Proxy)
{
// no 0 pointer
check(&Proxy);
EMaterialShadingModel MaterialShadingModel = GetShadingModel(true);
// for better performance we only update SubsurfaceProfileRT if the feature is used
if (MaterialShadingModel == MSM_SubsurfaceProfile)
{
FSubsurfaceProfileStruct Settings;
USubsurfaceProfile* LocalSubsurfaceProfile = GetSubsurfaceProfile_Internal();
if (LocalSubsurfaceProfile)
{
Settings = LocalSubsurfaceProfile->Settings;
}
ENQUEUE_UNIQUE_RENDER_COMMAND_THREEPARAMETER(
UpdateMaterialRenderProxySubsurface,
const FSubsurfaceProfileStruct, Settings, Settings,
USubsurfaceProfile*, LocalSubsurfaceProfile, LocalSubsurfaceProfile,
FMaterialRenderProxy&, Proxy, Proxy,
{
uint32 AllocationId = 0;
if (LocalSubsurfaceProfile)
{
AllocationId = GSubsufaceProfileTextureObject.AddOrUpdateProfile(Settings, LocalSubsurfaceProfile);
check(AllocationId >= 0 && AllocationId <= 255);
}
Proxy.SetSubsurfaceProfileRT(LocalSubsurfaceProfile);
});
FTransientDecalRenderData(FDeferredDecalProxy* InDecalProxy)
: DecalProxy(InDecalProxy)
{
MaterialProxy = InDecalProxy->DecalMaterial->GetRenderProxy(InDecalProxy->bOwnerSelected);
MaterialResource = MaterialProxy->GetMaterial(GRHIFeatureLevel);
bHasNormal = MaterialResource->HasNormalConnected();
DecalBlendMode = ComputeFinalDecalBlendMode((EDecalBlendMode)MaterialResource->GetDecalBlendMode(), bHasNormal);
check(MaterialProxy && MaterialResource);
}
void FRCPassPostProcessMaterial::Process(FRenderingCompositePassContext& Context)
{
FMaterialRenderProxy* Proxy = MaterialInterface->GetRenderProxy(false);
check(Proxy);
const FMaterial* Material = Proxy->GetMaterial(Context.View.GetFeatureLevel());
check(Material);
SCOPED_DRAW_EVENTF(Context.RHICmdList, PostProcessMaterial, TEXT("PostProcessMaterial Material=%s"), *Material->GetFriendlyName());
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);
// hacky cast
FRenderingCompositePassContext RenderingCompositePassContext(Context.RHICmdList, (FViewInfo&)View);
RenderingCompositePassContext.Pass = this;
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, FTextureRHIParamRef());
if( ViewFamily.RenderTarget->GetRenderTargetTexture() != DestRenderTarget.TargetableTexture )
{
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());
float ScaleX = 1.0f / InputDesc->Extent.X;
float ScaleY = 1.0f / InputDesc->Extent.Y;
const FMaterialShaderMap* MaterialShaderMap = Material->GetRenderingThreadShaderMap();
FPostProcessMaterialPS* PixelShader = MaterialShaderMap->GetShader<FPostProcessMaterialPS>();
FPostProcessMaterialVS* VertexShader = MaterialShaderMap->GetShader<FPostProcessMaterialVS>();
Context.RHICmdList.SetLocalBoundShaderState(Context.RHICmdList.BuildLocalBoundShaderState(GetVertexDeclarationFVector4(), VertexShader->GetVertexShader(), FHullShaderRHIRef(), FDomainShaderRHIRef(), PixelShader->GetPixelShader(), FGeometryShaderRHIRef()));
VertexShader->SetParameters(Context.RHICmdList, Context);
PixelShader->SetParameters(Context.RHICmdList, Context, MaterialInterface->GetRenderProxy(false));
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());
if(Material->NeedsGBuffer())
{
GSceneRenderTargets.AdjustGBufferRefCount(-1);
}
}
void FSlateRHIRenderingPolicy::DrawElements(FRHICommandListImmediate& RHICmdList, FSlateBackBuffer& BackBuffer, const FMatrix& ViewProjectionMatrix, const TArray<FSlateRenderBatch>& RenderBatches)
{
SCOPE_CYCLE_COUNTER( STAT_SlateDrawTime );
// Should only be called by the rendering thread
check(IsInRenderingThread());
TSlateElementVertexBuffer<FSlateVertex>& VertexBuffer = VertexBuffers[CurrentBufferIndex];
FSlateElementIndexBuffer& IndexBuffer = IndexBuffers[CurrentBufferIndex];
float TimeSeconds = FPlatformTime::Seconds() - GStartTime;
float RealTimeSeconds = FPlatformTime::Seconds() - GStartTime;
float DeltaTimeSeconds = FApp::GetDeltaTime();
static const FEngineShowFlags DefaultShowFlags(ESFIM_Game);
const float DisplayGamma = bGammaCorrect ? GEngine ? GEngine->GetDisplayGamma() : 2.2f : 1.0f;
FSceneViewFamilyContext SceneViewContext
(
FSceneViewFamily::ConstructionValues
(
&BackBuffer,
NULL,
DefaultShowFlags
)
.SetWorldTimes( TimeSeconds, RealTimeSeconds, DeltaTimeSeconds )
.SetGammaCorrection( DisplayGamma )
);
FSceneView* SceneView = NULL;
TShaderMapRef<FSlateElementVS> VertexShader(GetGlobalShaderMap(GMaxRHIFeatureLevel));
// Disabled stencil test state
FDepthStencilStateRHIRef DSOff = TStaticDepthStencilState<false,CF_Always>::GetRHI();
FSamplerStateRHIRef BilinearClamp = TStaticSamplerState<SF_Bilinear,AM_Clamp,AM_Clamp,AM_Clamp>::GetRHI();
if (GRHISupportsBaseVertexIndex)
{
RHICmdList.SetStreamSource(0, VertexBuffer.VertexBufferRHI, sizeof(FSlateVertex), 0);
}
// Draw each element
for( int32 BatchIndex = 0; BatchIndex < RenderBatches.Num(); ++BatchIndex )
{
const FSlateRenderBatch& RenderBatch = RenderBatches[BatchIndex];
const FSlateShaderResource* ShaderResource = RenderBatch.Texture;
const ESlateBatchDrawFlag::Type DrawFlags = RenderBatch.DrawFlags;
const ESlateDrawEffect::Type DrawEffects = RenderBatch.DrawEffects;
const ESlateShader::Type ShaderType = RenderBatch.ShaderType;
const FShaderParams& ShaderParams = RenderBatch.ShaderParams;
if( !RenderBatch.CustomDrawer.IsValid() )
{
if( !ShaderResource || ShaderResource->GetType() != ESlateShaderResource::Material )
{
FSlateElementPS* PixelShader = GetTexturePixelShader(ShaderType, DrawEffects);
RHICmdList.SetLocalBoundShaderState(RHICmdList.BuildLocalBoundShaderState(
GSlateVertexDeclaration.VertexDeclarationRHI,
VertexShader->GetVertexShader(),
nullptr,
nullptr,
PixelShader->GetPixelShader(),
FGeometryShaderRHIRef()));
VertexShader->SetViewProjection(RHICmdList, ViewProjectionMatrix);
#if !DEBUG_OVERDRAW
RHICmdList.SetBlendState(
(RenderBatch.DrawFlags & ESlateBatchDrawFlag::NoBlending)
? TStaticBlendState<>::GetRHI()
: TStaticBlendState<CW_RGBA, BO_Add, BF_SourceAlpha, BF_InverseSourceAlpha, BO_Add, BF_InverseDestAlpha, BF_One>::GetRHI()
);
#else
RHICmdList.SetBlendState(TStaticBlendState<CW_RGB, BO_Add, BF_One, BF_One, BO_Add, BF_Zero, BF_InverseSourceAlpha>::GetRHI());
#endif
// Disable stencil testing by default
RHICmdList.SetDepthStencilState(DSOff);
if (DrawFlags & ESlateBatchDrawFlag::Wireframe)
{
RHICmdList.SetRasterizerState(TStaticRasterizerState<FM_Wireframe, CM_None, true>::GetRHI());
}
else
{
RHICmdList.SetRasterizerState(TStaticRasterizerState<FM_Solid, CM_None, true>::GetRHI());
}
if (RenderBatch.ScissorRect.IsSet())
{
RHICmdList.SetScissorRect(true, RenderBatch.ScissorRect.GetValue().Left, RenderBatch.ScissorRect.GetValue().Top, RenderBatch.ScissorRect.GetValue().Right, RenderBatch.ScissorRect.GetValue().Bottom);
}
else
{
RHICmdList.SetScissorRect(false, 0, 0, 0, 0);
}
FTexture2DRHIRef TextureRHI;
if(ShaderResource)
{
TextureRHI = ((TSlateTexture<FTexture2DRHIRef>*)ShaderResource)->GetTypedResource();
}
if (ShaderType == ESlateShader::LineSegment)
{
// The lookup table used for splines should clamp when sampling otherwise the results are wrong
PixelShader->SetTexture(RHICmdList, TextureRHI, BilinearClamp );
}
else if( ShaderResource && IsValidRef( TextureRHI ) )
{
FSamplerStateRHIRef SamplerState;
if( DrawFlags == (ESlateBatchDrawFlag::TileU | ESlateBatchDrawFlag::TileV) )
{
SamplerState = TStaticSamplerState<SF_Bilinear, AM_Wrap, AM_Wrap, AM_Wrap>::GetRHI();
}
else if (DrawFlags & ESlateBatchDrawFlag::TileU)
{
SamplerState = TStaticSamplerState<SF_Bilinear, AM_Wrap, AM_Clamp, AM_Wrap>::GetRHI();
}
else if (DrawFlags & ESlateBatchDrawFlag::TileV)
{
SamplerState = TStaticSamplerState<SF_Bilinear, AM_Clamp, AM_Wrap, AM_Wrap>::GetRHI();
}
else
{
SamplerState = BilinearClamp;
}
PixelShader->SetTexture(RHICmdList, TextureRHI, SamplerState);
}
else
{
PixelShader->SetTexture(RHICmdList, GWhiteTexture->TextureRHI, BilinearClamp);
}
PixelShader->SetShaderParams(RHICmdList, ShaderParams.PixelParams);
PixelShader->SetDisplayGamma(RHICmdList, (DrawFlags & ESlateBatchDrawFlag::NoGamma) ? 1.0f : 1.0f/DisplayGamma);
check(RenderBatch.NumIndices > 0);
uint32 PrimitiveCount = RenderBatch.DrawPrimitiveType == ESlateDrawPrimitive::LineList ? RenderBatch.NumIndices / 2 : RenderBatch.NumIndices / 3;
// for RHIs that can't handle VertexOffset, we need to offset the stream source each time
if (!GRHISupportsBaseVertexIndex)
{
RHICmdList.SetStreamSource(0, VertexBuffer.VertexBufferRHI, sizeof(FSlateVertex), RenderBatch.VertexOffset * sizeof(FSlateVertex));
RHICmdList.DrawIndexedPrimitive(IndexBuffer.IndexBufferRHI, GetRHIPrimitiveType(RenderBatch.DrawPrimitiveType), 0, 0, RenderBatch.NumVertices, RenderBatch.IndexOffset, PrimitiveCount, 1);
}
else
{
RHICmdList.DrawIndexedPrimitive(IndexBuffer.IndexBufferRHI, GetRHIPrimitiveType(RenderBatch.DrawPrimitiveType), RenderBatch.VertexOffset, 0, RenderBatch.NumVertices, RenderBatch.IndexOffset, PrimitiveCount, 1);
}
}
else if (ShaderResource && ShaderResource->GetType() == ESlateShaderResource::Material)
{
if (!SceneView)
{
SceneView = &CreateSceneView(SceneViewContext, BackBuffer, ViewProjectionMatrix);
}
FMaterialRenderProxy* MaterialRenderProxy = ((FSlateMaterialResource*)ShaderResource)->GetRenderProxy();
const FMaterial* Material = MaterialRenderProxy->GetMaterial(SceneView->GetFeatureLevel());
FSlateMaterialShaderPS* PixelShader = GetMaterialPixelShader( Material, ShaderType, DrawEffects );
if( PixelShader )
{
RHICmdList.SetLocalBoundShaderState(RHICmdList.BuildLocalBoundShaderState(
GSlateVertexDeclaration.VertexDeclarationRHI,
VertexShader->GetVertexShader(),
nullptr,
nullptr,
PixelShader->GetPixelShader(),
FGeometryShaderRHIRef()));
PixelShader->SetParameters(RHICmdList, *SceneView, MaterialRenderProxy, Material, 1.0f / DisplayGamma, ShaderParams.PixelParams);
VertexShader->SetViewProjection( RHICmdList, ViewProjectionMatrix );
check(RenderBatch.NumIndices > 0);
uint32 PrimitiveCount = RenderBatch.DrawPrimitiveType == ESlateDrawPrimitive::LineList ? RenderBatch.NumIndices / 2 : RenderBatch.NumIndices / 3;
// for RHIs that can't handle VertexOffset, we need to offset the stream source each time
if (!GRHISupportsBaseVertexIndex)
{
RHICmdList.SetStreamSource(0, VertexBuffer.VertexBufferRHI, sizeof(FSlateVertex), RenderBatch.VertexOffset * sizeof(FSlateVertex));
RHICmdList.DrawIndexedPrimitive(IndexBuffer.IndexBufferRHI, GetRHIPrimitiveType(RenderBatch.DrawPrimitiveType), 0, 0, RenderBatch.NumVertices, RenderBatch.IndexOffset, PrimitiveCount, 1);
}
else
{
RHICmdList.DrawIndexedPrimitive(IndexBuffer.IndexBufferRHI, GetRHIPrimitiveType(RenderBatch.DrawPrimitiveType), RenderBatch.VertexOffset, 0, RenderBatch.NumVertices, RenderBatch.IndexOffset, PrimitiveCount, 1);
}
}
}
}
else
{
TSharedPtr<ICustomSlateElement, ESPMode::ThreadSafe> CustomDrawer = RenderBatch.CustomDrawer.Pin();
if (CustomDrawer.IsValid())
{
// This element is custom and has no Slate geometry. Tell it to render itself now
CustomDrawer->DrawRenderThread(RHICmdList, &BackBuffer.GetRenderTargetTexture());
// Something may have messed with the viewport size so set it back to the full target.
RHICmdList.SetViewport( 0,0,0,BackBuffer.GetSizeXY().X, BackBuffer.GetSizeXY().Y, 0.0f );
RHICmdList.SetStreamSource(0, VertexBuffer.VertexBufferRHI, sizeof(FSlateVertex), 0);
}
}
}
CurrentBufferIndex = (CurrentBufferIndex + 1) % 2;
}
