C++ FViewInfo::GetFeatureLevel方法代码示例

/**
 * Render a static mesh using a translucent draw policy
 * @return true if the mesh rendered
 */
bool FTranslucencyForwardShadingDrawingPolicyFactory::DrawStaticMesh(
	FRHICommandList& RHICmdList, 
	const FViewInfo& View,
	ContextType DrawingContext,
	const FStaticMesh& StaticMesh,
	bool bPreFog,
	const FPrimitiveSceneProxy* PrimitiveSceneProxy,
	FHitProxyId HitProxyId
	)
{
	bool bDirty = false;
	const FMaterial* Material = StaticMesh.MaterialRenderProxy->GetMaterial(View.GetFeatureLevel());

	bDirty |= DrawDynamicMesh(
		RHICmdList, 
		View,
		DrawingContext,
		StaticMesh,
		false,
		bPreFog,
		PrimitiveSceneProxy,
		HitProxyId
		);
	return bDirty;
}

void FTranslucencyDrawingPolicyFactory::CopySceneColor(FRHICommandList& RHICmdList, const FViewInfo& View, const FPrimitiveSceneProxy* PrimitiveSceneProxy)
{

	SCOPED_DRAW_EVENTF(RHICmdList, EventCopy, TEXT("CopySceneColor for %s %s"), *PrimitiveSceneProxy->GetOwnerName().ToString(), *PrimitiveSceneProxy->GetResourceName().ToString());
	RHICmdList.SetRasterizerState(TStaticRasterizerState<FM_Solid, CM_None>::GetRHI());
	RHICmdList.SetDepthStencilState(TStaticDepthStencilState<false, CF_Always>::GetRHI());
	RHICmdList.SetBlendState(TStaticBlendState<>::GetRHI());

	GSceneRenderTargets.ResolveSceneColor(RHICmdList);

	GSceneRenderTargets.BeginRenderingLightAttenuation(RHICmdList);
	RHICmdList.SetViewport(View.ViewRect.Min.X, View.ViewRect.Min.Y, 0.0f, View.ViewRect.Max.X, View.ViewRect.Max.Y, 1.0f);

	TShaderMapRef<FScreenVS> ScreenVertexShader(View.ShaderMap);
	TShaderMapRef<FCopySceneColorPS> PixelShader(View.ShaderMap);
	SetGlobalBoundShaderState(RHICmdList, View.GetFeatureLevel(), CopySceneColorBoundShaderState, GFilterVertexDeclaration.VertexDeclarationRHI, *ScreenVertexShader, *PixelShader);

	/// ?
	PixelShader->SetParameters(RHICmdList, View);

	DrawRectangle(
		RHICmdList,
		0, 0, 
		View.ViewRect.Width(), View.ViewRect.Height(),
		View.ViewRect.Min.X, View.ViewRect.Min.Y, 
		View.ViewRect.Width(), View.ViewRect.Height(),
		FIntPoint(View.ViewRect.Width(), View.ViewRect.Height()),
		GSceneRenderTargets.GetBufferSizeXY(),
		*ScreenVertexShader,
		EDRF_UseTriangleOptimization);

	GSceneRenderTargets.FinishRenderingLightAttenuation(RHICmdList);
}

/** Draws a full view quad that sets stencil to 1 anywhere that decals should not be projected. */
void StencilDecalMask(FRHICommandList& RHICmdList, const FViewInfo& View, bool bUseHmdMesh)
{
	SCOPED_DRAW_EVENT(RHICmdList, StencilDecalMask);
	FSceneRenderTargets& SceneContext = FSceneRenderTargets::Get(RHICmdList);
	RHICmdList.SetRasterizerState(TStaticRasterizerState<FM_Solid, CM_None>::GetRHI());
	RHICmdList.SetBlendState(TStaticBlendState<CW_NONE>::GetRHI());
	SetRenderTarget(RHICmdList, NULL, SceneContext.GetSceneDepthSurface(), ESimpleRenderTargetMode::EUninitializedColorExistingDepth, FExclusiveDepthStencil::DepthRead_StencilWrite);
	RHICmdList.SetViewport(View.ViewRect.Min.X, View.ViewRect.Min.Y, 0.0f, View.ViewRect.Max.X, View.ViewRect.Max.Y, 1.0f);

	// Write 1 to highest bit of stencil to areas that should not receive decals
	RHICmdList.SetDepthStencilState(TStaticDepthStencilState<false, CF_Always, true, CF_Always, SO_Replace, SO_Replace, SO_Replace>::GetRHI(), 0x80);

	const auto FeatureLevel = View.GetFeatureLevel();
	auto ShaderMap = View.ShaderMap;
	TShaderMapRef<FScreenVS> ScreenVertexShader(ShaderMap);
	TShaderMapRef<FStencilDecalMaskPS> PixelShader(ShaderMap);
	
	SetGlobalBoundShaderState(RHICmdList, FeatureLevel, StencilDecalMaskBoundShaderState, GFilterVertexDeclaration.VertexDeclarationRHI, *ScreenVertexShader, *PixelShader);

	PixelShader->SetParameters(RHICmdList, View);

	DrawPostProcessPass(
		RHICmdList,
		0, 0,
		View.ViewRect.Width(), View.ViewRect.Height(),
		View.ViewRect.Min.X, View.ViewRect.Min.Y,
		View.ViewRect.Width(), View.ViewRect.Height(),
		FIntPoint(View.ViewRect.Width(), View.ViewRect.Height()),
		SceneContext.GetBufferSizeXY(),
		*ScreenVertexShader,
		View.StereoPass,
		bUseHmdMesh,
		EDRF_UseTriangleOptimization);
}

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

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

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

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

	VertexShader->SetParameters(RHICmdList, View, FrustumComponentToClip);
}

bool FBasePassOpaqueDrawingPolicyFactory::DrawDynamicMesh(
	FRHICommandList& RHICmdList, 
	const FViewInfo& View,
	ContextType DrawingContext,
	const FMeshBatch& Mesh,
	bool bBackFace,
	bool bPreFog,
	const FPrimitiveSceneProxy* PrimitiveSceneProxy,
	FHitProxyId HitProxyId, 
	const bool bIsInstancedStereo
	)
{
	// Determine the mesh's material and blend mode.
	const FMaterial* Material = Mesh.MaterialRenderProxy->GetMaterial(View.GetFeatureLevel());
	const EBlendMode BlendMode = Material->GetBlendMode();

	// Only draw opaque materials.
	if(!IsTranslucentBlendMode(BlendMode))
	{
		ProcessBasePassMesh(
			RHICmdList, 
			FProcessBasePassMeshParameters(
				Mesh,
				Material,
				PrimitiveSceneProxy,
				!bPreFog,
				DrawingContext.bEditorCompositeDepthTest,
				DrawingContext.TextureMode,
				View.GetFeatureLevel(), 
				bIsInstancedStereo
				),
			FDrawBasePassDynamicMeshAction(
				View,
				bBackFace,
				Mesh.DitheredLODTransitionAlpha,
				HitProxyId
				)
			);
		return true;
	}
	else
	{
		return false;
	}
}

/**
 * Render a dynamic mesh using a translucent draw policy
 * @return true if the mesh rendered
 */
bool FTranslucencyForwardShadingDrawingPolicyFactory::DrawDynamicMesh(
	FRHICommandList& RHICmdList, 
	const FViewInfo& View,
	ContextType DrawingContext,
	const FMeshBatch& Mesh,
	bool bBackFace,
	bool bPreFog,
	const FPrimitiveSceneProxy* PrimitiveSceneProxy,
	FHitProxyId HitProxyId
	)
{
	bool bDirty = false;

	// Determine the mesh's material and blend mode.
	const auto FeatureLevel = View.GetFeatureLevel();
	const auto ShaderPlatform = View.GetShaderPlatform();
	const FMaterial* Material = Mesh.MaterialRenderProxy->GetMaterial(FeatureLevel);
	const EBlendMode BlendMode = Material->GetBlendMode();

	// Only render translucent materials.
	if (IsTranslucentBlendMode(BlendMode))
	{
		const bool bDisableDepthTest = Material->ShouldDisableDepthTest();
		if (bDisableDepthTest)
		{
			RHICmdList.SetDepthStencilState(TStaticDepthStencilState<false, CF_Always>::GetRHI());
		}

		ProcessBasePassMeshForForwardShading(
			RHICmdList,
			FProcessBasePassMeshParameters(
				Mesh,
				Material,
				PrimitiveSceneProxy,
				true,
				false,
				ESceneRenderTargetsMode::SetTextures,
				FeatureLevel
				),
			FDrawTranslucentMeshForwardShadingAction(
				View,
				bBackFace,
				HitProxyId
				)
			);

		if (bDisableDepthTest)
		{
			// Restore default depth state
			// Note, this is a reversed Z depth surface, using CF_GreaterEqual.	
			RHICmdList.SetDepthStencilState(TStaticDepthStencilState<false, CF_GreaterEqual>::GetRHI());
		}

		bDirty = true;
	}
	return bDirty;
}

/** Applies screen space radial blur passes. */
void ApplyRadialBlurPasses(
	FRHICommandListImmediate& RHICmdList,
	const FViewInfo& View, 
	const FLightSceneInfo* const LightSceneInfo, 
	/** First pass source - this will not be overwritten. */
	TRefCountPtr<IPooledRenderTarget>& FirstPassSource, 
	/** Subsequent pass source, will also contain the final result. */
	TRefCountPtr<IPooledRenderTarget>& LightShaftsSource, 
	/** First pass dest. */
	TRefCountPtr<IPooledRenderTarget>& LightShaftsDest)
{
	TShaderMapRef<FScreenVS> ScreenVertexShader(View.ShaderMap);

	const FIntPoint BufferSize = FSceneRenderTargets::Get(RHICmdList).GetBufferSizeXY();
	const uint32 DownsampleFactor	= GetLightShaftDownsampleFactor();
	const FIntPoint FilterBufferSize = BufferSize / DownsampleFactor;
	const FIntPoint DownSampledXY = View.ViewRect.Min / DownsampleFactor;
	const uint32 DownsampledSizeX = View.ViewRect.Width() / DownsampleFactor;
	const uint32 DownsampledSizeY = View.ViewRect.Height() / DownsampleFactor;
	const uint32 NumPasses = FMath::Max(GLightShaftBlurPasses, 0);

	for (uint32 PassIndex = 0; PassIndex < NumPasses; PassIndex++)
	{
		SetRenderTarget(RHICmdList, LightShaftsDest->GetRenderTargetItem().TargetableTexture, FTextureRHIRef());
		RHICmdList.SetViewport(0, 0, 0.0f, FilterBufferSize.X, FilterBufferSize.Y, 1.0f);

		RHICmdList.SetBlendState(TStaticBlendState<>::GetRHI());
		RHICmdList.SetRasterizerState(TStaticRasterizerState<>::GetRHI());
		RHICmdList.SetDepthStencilState(TStaticDepthStencilState<false, CF_Always>::GetRHI());

		TShaderMapRef<FBlurLightShaftsPixelShader> BlurLightShaftsPixelShader(View.ShaderMap);
		SetGlobalBoundShaderState(RHICmdList, View.GetFeatureLevel(), BlurLightShaftsBoundShaderState, GFilterVertexDeclaration.VertexDeclarationRHI, *ScreenVertexShader, *BlurLightShaftsPixelShader);

		TRefCountPtr<IPooledRenderTarget>& EffectiveSource = PassIndex == 0 ? FirstPassSource : LightShaftsSource;
		/// ?
		BlurLightShaftsPixelShader->SetParameters(RHICmdList, LightSceneInfo, View, PassIndex, EffectiveSource);

		{
			// Apply a radial blur to the bloom and occlusion mask
			DrawRectangle( 
				RHICmdList,
				DownSampledXY.X, DownSampledXY.Y, 
				DownsampledSizeX, DownsampledSizeY,
				DownSampledXY.X, DownSampledXY.Y, 
				DownsampledSizeX, DownsampledSizeY,
				FilterBufferSize, FilterBufferSize,
				*ScreenVertexShader,
				EDRF_UseTriangleOptimization);
		}

		RHICmdList.CopyToResolveTarget(LightShaftsDest->GetRenderTargetItem().TargetableTexture, LightShaftsDest->GetRenderTargetItem().ShaderResourceTexture, false, FResolveParams());

		// Swap input and output for the next pass
		Swap(LightShaftsSource, LightShaftsDest);
	}
}

void FTranslucentPrimSet::DrawPrimitivesForForwardShading(FRHICommandListImmediate& RHICmdList, const FViewInfo& View, FSceneRenderer& Renderer) const
{
	// Draw sorted scene prims
	for (int32 PrimIdx = 0; PrimIdx < SortedPrims.Num(); PrimIdx++)
	{
		FPrimitiveSceneInfo* PrimitiveSceneInfo = SortedPrims[PrimIdx].PrimitiveSceneInfo;
		int32 PrimitiveId = PrimitiveSceneInfo->GetIndex();
		const FPrimitiveViewRelevance& ViewRelevance = View.PrimitiveViewRelevanceMap[PrimitiveId];

		checkSlow(ViewRelevance.HasTranslucency());

		if(ViewRelevance.bDrawRelevance)
		{
			FTranslucencyForwardShadingDrawingPolicyFactory::ContextType Context;

			//@todo parallelrendering - come up with a better way to filter these by primitive
			for (int32 MeshBatchIndex = 0; MeshBatchIndex < View.DynamicMeshElements.Num(); MeshBatchIndex++)
			{
				const FMeshBatchAndRelevance& MeshBatchAndRelevance = View.DynamicMeshElements[MeshBatchIndex];

				if (MeshBatchAndRelevance.PrimitiveSceneProxy == PrimitiveSceneInfo->Proxy)
				{
					const FMeshBatch& MeshBatch = *MeshBatchAndRelevance.Mesh;
					FTranslucencyForwardShadingDrawingPolicyFactory::DrawDynamicMesh(RHICmdList, View, Context, MeshBatch, false, false, MeshBatchAndRelevance.PrimitiveSceneProxy, MeshBatch.BatchHitProxyId);
				}
			}

			// Render static scene prim
			if( ViewRelevance.bStaticRelevance )
			{
				// Render static meshes from static scene prim
				for( int32 StaticMeshIdx=0; StaticMeshIdx < PrimitiveSceneInfo->StaticMeshes.Num(); StaticMeshIdx++ )
				{
					FStaticMesh& StaticMesh = PrimitiveSceneInfo->StaticMeshes[StaticMeshIdx];
					if (View.StaticMeshVisibilityMap[StaticMesh.Id]
						// Only render static mesh elements using translucent materials
						&& StaticMesh.IsTranslucent(View.GetFeatureLevel()) )
					{
						FTranslucencyForwardShadingDrawingPolicyFactory::DrawStaticMesh(
							RHICmdList, 
							View,
							FTranslucencyForwardShadingDrawingPolicyFactory::ContextType(),
							StaticMesh,
							false,
							PrimitiveSceneInfo->Proxy,
							StaticMesh.BatchHitProxyId
							);
					}
				}
			}
		}
	}

	View.SimpleElementCollector.DrawBatchedElements(RHICmdList, View, FTexture2DRHIRef(), EBlendModeFilter::Translucent);
}

/** Sets the bound shader state for either the per-pixel or per-sample fog pass. */
void SetFogShaders(FRHICommandList& RHICmdList, FScene* Scene, const FViewInfo& View, FLightShaftsOutput LightShaftsOutput)
{
	if (Scene->ExponentialFogs.Num() > 0)
	{
		TShaderMapRef<FHeightFogVS> VertexShader(View.ShaderMap);
		TShaderMapRef<FExponentialHeightFogPS> ExponentialHeightFogPixelShader(View.ShaderMap);

		SetGlobalBoundShaderState(RHICmdList, View.GetFeatureLevel(), ExponentialBoundShaderState, GFogVertexDeclaration.VertexDeclarationRHI, *VertexShader, *ExponentialHeightFogPixelShader);
		VertexShader->SetParameters(RHICmdList, View);
		ExponentialHeightFogPixelShader->SetParameters(RHICmdList, View, LightShaftsOutput);
	}
}

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

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

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

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

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

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

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

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

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

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

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

	VertexShader->SetParameters(RHICmdList, View, FrustumComponentToClip);
}

void PrefilterPlanarReflection(FRHICommandListImmediate& RHICmdList, FViewInfo& View, const FPlanarReflectionSceneProxy* ReflectionSceneProxy, const FRenderTarget* Target)
{
	FTextureRHIParamRef SceneColorInput = FSceneRenderTargets::Get(RHICmdList).GetSceneColorTexture();

	if(View.FeatureLevel >= ERHIFeatureLevel::SM4)
	{
		// Note: null velocity buffer, so dynamic object temporal AA will not be correct
		TRefCountPtr<IPooledRenderTarget> VelocityRT;
		TRefCountPtr<IPooledRenderTarget> FilteredSceneColor;
		GPostProcessing.ProcessPlanarReflection(RHICmdList, View, VelocityRT, FilteredSceneColor);

		if (FilteredSceneColor)
		{
			SceneColorInput = FilteredSceneColor->GetRenderTargetItem().ShaderResourceTexture;
		}
	}

	{
		SCOPED_DRAW_EVENT(RHICmdList, PrefilterPlanarReflection);

		FRHIRenderTargetView ColorView(Target->GetRenderTargetTexture(), 0, -1, ERenderTargetLoadAction::ENoAction, ERenderTargetStoreAction::EStore);
		FRHISetRenderTargetsInfo Info(1, &ColorView, FRHIDepthRenderTargetView());
		RHICmdList.SetRenderTargetsAndClear(Info);

		RHICmdList.SetViewport(View.ViewRect.Min.X, View.ViewRect.Min.Y, 0.0f, View.ViewRect.Max.X, View.ViewRect.Max.Y, 1.0f);

		RHICmdList.SetBlendState(TStaticBlendState<>::GetRHI());
		RHICmdList.SetRasterizerState(TStaticRasterizerState<FM_Solid, CM_None>::GetRHI());
		RHICmdList.SetDepthStencilState(TStaticDepthStencilState<false, CF_Always>::GetRHI());

		TShaderMapRef<TDeferredLightVS<false> > VertexShader(View.ShaderMap);
		TShaderMapRef<FPrefilterPlanarReflectionPS<bEnablePlanarReflectionPrefilter> > PixelShader(View.ShaderMap);

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

		PixelShader->SetParameters(RHICmdList, View, ReflectionSceneProxy, SceneColorInput);
		VertexShader->SetSimpleLightParameters(RHICmdList, View, FSphere(0));

		DrawRectangle(
			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(RHICmdList).GetBufferSizeXY(),
			*VertexShader,
			EDRF_UseTriangleOptimization);
	}
}

void FLightPropagationVolume::Visualise(FRHICommandList& RHICmdList, const FViewInfo& View) const
{
    SCOPED_DRAW_EVENT(RHICmdList, LpvVisualise);
    check(View.GetFeatureLevel() == ERHIFeatureLevel::SM5);

    TShaderMapRef<FLpvVisualiseVS> VertexShader(View.ShaderMap);
    TShaderMapRef<FLpvVisualiseGS> GeometryShader(View.ShaderMap);
    TShaderMapRef<FLpvVisualisePS> PixelShader(View.ShaderMap);

    RHICmdList.SetDepthStencilState(TStaticDepthStencilState<false, CF_Always>::GetRHI());
    RHICmdList.SetRasterizerState(TStaticRasterizerState<FM_Solid, CM_None>::GetRHI());
    RHICmdList.SetBlendState(TStaticBlendState<CW_RGB, BO_Add, BF_One, BF_One>::GetRHI());

    SetGlobalBoundShaderState(RHICmdList, View.GetFeatureLevel(), LpvVisBoundShaderState, GSimpleElementVertexDeclaration.VertexDeclarationRHI, *VertexShader, *PixelShader, *GeometryShader);

    VertexShader->SetParameters(RHICmdList, View);
    GeometryShader->SetParameters(RHICmdList, View);
    PixelShader->SetParameters(RHICmdList, this, View);

    RHICmdList.SetStreamSource(0, NULL, 0, 0);
    RHICmdList.DrawPrimitive(PT_PointList, 0, 1, 32 * 3);

    PixelShader->UnbindBuffers(RHICmdList);
}

bool IsMotionBlurEnabled(const FViewInfo& View)
{
	if (!(View.GetFeatureLevel() >= ERHIFeatureLevel::SM4))
	{
		return false; 
	}

	int32 MotionBlurQuality = GetMotionBlurQualityFromCVar();

	return View.Family->EngineShowFlags.PostProcessing
		&& View.Family->EngineShowFlags.MotionBlur
		&& View.FinalPostProcessSettings.MotionBlurAmount > 0.001f
		&& View.FinalPostProcessSettings.MotionBlurMax > 0.001f
		&& View.Family->bRealtimeUpdate
		&& MotionBlurQuality > 0
		&& !View.bIsSceneCapture
		&& !(View.Family->Views.Num() > 1);
}

bool FBasePassForwardOpaqueDrawingPolicyFactory::DrawDynamicMesh(
	FRHICommandList& RHICmdList, 
	const FViewInfo& View,
	ContextType DrawingContext,
	const FMeshBatch& Mesh,
	bool bBackFace,
	bool bPreFog,
	const FPrimitiveSceneProxy* PrimitiveSceneProxy,
	FHitProxyId HitProxyId
	)
{
	// Determine the mesh's material and blend mode.
	const auto FeatureLevel = View.GetFeatureLevel();
	const auto ShaderPlatform = View.GetShaderPlatform();
	const FMaterial* Material = Mesh.MaterialRenderProxy->GetMaterial(FeatureLevel);
	const EBlendMode BlendMode = Material->GetBlendMode();

	// Only draw opaque materials.
	if(!IsTranslucentBlendMode(BlendMode))
	{
		ProcessBasePassMeshForForwardShading(
			RHICmdList,
			FProcessBasePassMeshParameters(
				Mesh,
				Material,
				PrimitiveSceneProxy,
				true,
				false,
				DrawingContext.TextureMode,
				FeatureLevel
				),
			FDrawBasePassForwardShadingDynamicMeshAction(
				View,
				bBackFace,
				HitProxyId
				)
			);
		return true;
	}
	else
	{
		return false;
	}
}

/**
 * Render a dynamic mesh using a translucent draw policy
 * @return true if the mesh rendered
 */
bool FTranslucencyForwardShadingDrawingPolicyFactory::DrawDynamicMesh(
	FRHICommandList& RHICmdList, 
	const FViewInfo& View,
	ContextType DrawingContext,
	const FMeshBatch& Mesh,
	bool bBackFace,
	bool bPreFog,
	const FPrimitiveSceneProxy* PrimitiveSceneProxy,
	FHitProxyId HitProxyId
	)
{
	bool bDirty = false;

	// Determine the mesh's material and blend mode.
	const auto FeatureLevel = View.GetFeatureLevel();
	const auto ShaderPlatform = View.GetShaderPlatform();
	const FMaterial* Material = Mesh.MaterialRenderProxy->GetMaterial(FeatureLevel);
	const EBlendMode BlendMode = Material->GetBlendMode();

	// Only render translucent materials.
	if (IsTranslucentBlendMode(BlendMode))
	{
		ProcessBasePassMeshForForwardShading(
			RHICmdList,
			FProcessBasePassMeshParameters(
				Mesh,
				Material,
				PrimitiveSceneProxy,
				true,
				false,
				ESceneRenderTargetsMode::SetTextures,
				FeatureLevel
				),
			FDrawTranslucentMeshForwardShadingAction(
				View,
				bBackFace,
				HitProxyId
				)
			);

		bDirty = true;
	}
	return bDirty;
}