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765b14e43b
For Forward ES31 Default SceneColor RG11B10 + R16F\32F Depth texture With PropagateAlpha on RGBA16F + R16F\32F PostProcess we sample SceneDepthAux for Depth For Deferred ES31 SceneDepthAux only for Metal PropagateAlpha not working yet PostProcess we sample SceneDepthTexture for Depth cvar to change Depth texture from 16 to 32Fr.Mobile.SceneDepthAux cvar for AlphaPropagate r.Mobile.PropagateAlpha #jira UE-98033 #rb Dmitriy.Dyomin, Carl.Lloyd, Jack.Porter [CL 16644095 by Florin Pascu in ue5-main branch]
145 lines
6.8 KiB
C++
145 lines
6.8 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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/*=============================================================================
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MobileDistortionPass.cpp - Mobile specific rendering of primtives with refraction
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=============================================================================*/
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#include "MobileDistortionPass.h"
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#include "TranslucentRendering.h"
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#include "DynamicPrimitiveDrawing.h"
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#include "PostProcess/PostProcessing.h"
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#include "PostProcess/SceneFilterRendering.h"
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#include "PipelineStateCache.h"
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#include "DistortionRendering.h"
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IMPLEMENT_STATIC_UNIFORM_BUFFER_STRUCT(FMobileDistortionPassUniformParameters, "MobileDistortionPass", SceneTextures);
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bool IsMobileDistortionActive(const FViewInfo& View)
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{
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static IConsoleVariable* CVar = IConsoleManager::Get().FindConsoleVariable(TEXT("r.DisableDistortion"));
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int32 DisableDistortion = CVar->GetInt();
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// Distortion on mobile requires SceneDepth information in SceneColor.A channel
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const EMobileHDRMode HDRMode = GetMobileHDRMode();
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const bool bVisiblePrims = View.ParallelMeshDrawCommandPasses[EMeshPass::Distortion].HasAnyDraw();
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return
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HDRMode == EMobileHDRMode::EnabledFloat16 &&
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View.Family->EngineShowFlags.Translucency &&
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bVisiblePrims &&
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FSceneRenderer::GetRefractionQuality(*View.Family) > 0 &&
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DisableDistortion == 0;
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}
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BEGIN_SHADER_PARAMETER_STRUCT(FMobileDistortionPassParameters, )
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SHADER_PARAMETER_STRUCT_INCLUDE(FViewShaderParameters, View)
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SHADER_PARAMETER_RDG_UNIFORM_BUFFER(FMobileDistortionPassUniformParameters, Pass)
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SHADER_PARAMETER_STRUCT_INCLUDE(FInstanceCullingDrawParams, InstanceCullingDrawParams)
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RENDER_TARGET_BINDING_SLOTS()
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END_SHADER_PARAMETER_STRUCT()
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TRDGUniformBufferRef<FMobileDistortionPassUniformParameters> CreateMobileDistortionPassUniformBuffer(FRDGBuilder& GraphBuilder, const FViewInfo& View)
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{
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auto* Parameters = GraphBuilder.AllocParameters<FMobileDistortionPassUniformParameters>();
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EMobileSceneTextureSetupMode SetupMode = EMobileSceneTextureSetupMode::None;
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if (View.bCustomDepthStencilValid)
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{
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SetupMode |= EMobileSceneTextureSetupMode::CustomDepth;
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}
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if (IsMobileDeferredShadingEnabled(View.GetShaderPlatform()))
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{
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SetupMode |= EMobileSceneTextureSetupMode::SceneDepth;
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}
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else
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{
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SetupMode |= EMobileSceneTextureSetupMode::SceneDepthAux;
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}
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SetupMobileSceneTextureUniformParameters(GraphBuilder, SetupMode, Parameters->SceneTextures);
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SetupDistortionParams(Parameters->DistortionParams, View);
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return GraphBuilder.CreateUniformBuffer(Parameters);
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}
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FMobileDistortionAccumulateOutputs AddMobileDistortionAccumulatePass(FRDGBuilder& GraphBuilder, FScene* Scene, const FViewInfo& View, const FMobileDistortionAccumulateInputs& Inputs)
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{
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FRDGTextureDesc DistortionAccumulateDesc = FRDGTextureDesc::Create2D(Inputs.SceneColor.Texture->Desc.Extent, PF_B8G8R8A8, FClearValueBinding::Transparent, TexCreate_ShaderResource | TexCreate_RenderTargetable);
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FScreenPassRenderTarget DistortionAccumulateOutput = FScreenPassRenderTarget(GraphBuilder.CreateTexture(DistortionAccumulateDesc, TEXT("DistortionAccumulatePass")), Inputs.SceneColor.ViewRect, ERenderTargetLoadAction::EClear);
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FMobileDistortionPassParameters* PassParameters = GraphBuilder.AllocParameters<FMobileDistortionPassParameters>();
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PassParameters->View = View.GetShaderParameters();
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PassParameters->Pass = CreateMobileDistortionPassUniformBuffer(GraphBuilder, View);
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PassParameters->RenderTargets[0] = DistortionAccumulateOutput.GetRenderTargetBinding();
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const FScreenPassTextureViewport SceneColorViewport(Inputs.SceneColor);
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const_cast<FViewInfo&>(View).ParallelMeshDrawCommandPasses[EMeshPass::Distortion].BuildRenderingCommands(GraphBuilder, Scene->GPUScene, PassParameters->InstanceCullingDrawParams);
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GraphBuilder.AddPass(
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RDG_EVENT_NAME("DistortionAccumulate %dx%d", SceneColorViewport.Rect.Width(), SceneColorViewport.Rect.Height()),
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PassParameters,
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ERDGPassFlags::Raster,
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[&View, SceneColorViewport, PassParameters](FRHICommandList& RHICmdList)
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{
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RHICmdList.SetViewport(SceneColorViewport.Rect.Min.X, SceneColorViewport.Rect.Min.Y, 0.0f, SceneColorViewport.Rect.Max.X, SceneColorViewport.Rect.Max.Y, 1.0f);
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View.ParallelMeshDrawCommandPasses[EMeshPass::Distortion].DispatchDraw(nullptr, RHICmdList, &PassParameters->InstanceCullingDrawParams);
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});
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FMobileDistortionAccumulateOutputs Outputs;
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Outputs.DistortionAccumulate = DistortionAccumulateOutput;
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return MoveTemp(Outputs);
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}
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class FMobileDistortionMergePS : public FGlobalShader
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{
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public:
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DECLARE_GLOBAL_SHADER(FMobileDistortionMergePS);
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SHADER_USE_PARAMETER_STRUCT(FMobileDistortionMergePS, FGlobalShader);
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BEGIN_SHADER_PARAMETER_STRUCT(FParameters, )
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SHADER_PARAMETER_STRUCT_REF(FViewUniformShaderParameters, View)
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SHADER_PARAMETER_RDG_TEXTURE(Texture2D, SceneColorTexture)
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SHADER_PARAMETER_SAMPLER(SamplerState, SceneColorTextureSampler)
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SHADER_PARAMETER_RDG_TEXTURE(Texture2D, DistortionAccumulateTexture)
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SHADER_PARAMETER_SAMPLER(SamplerState, DistortionAccumulateSampler)
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RENDER_TARGET_BINDING_SLOTS()
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END_SHADER_PARAMETER_STRUCT()
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static bool ShouldCompilePermutation(const FGlobalShaderPermutationParameters& Parameters)
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{
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return IsMobilePlatform(Parameters.Platform);
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}
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};
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IMPLEMENT_GLOBAL_SHADER(FMobileDistortionMergePS, "/Engine/Private/DistortApplyScreenPS.usf", "Merge_Mobile", SF_Pixel);
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FScreenPassTexture AddMobileDistortionMergePass(FRDGBuilder& GraphBuilder, const FViewInfo& View, const FMobileDistortionMergeInputs& Inputs)
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{
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FRDGTextureDesc DistortionMergeDesc = FRDGTextureDesc::Create2D(Inputs.DistortionAccumulate.Texture->Desc.Extent, PF_FloatRGBA, FClearValueBinding::Black, TexCreate_ShaderResource | TexCreate_RenderTargetable);
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FScreenPassRenderTarget DistortionMergeOutput = FScreenPassRenderTarget(GraphBuilder.CreateTexture(DistortionMergeDesc, TEXT("DistortionMergePass")), Inputs.DistortionAccumulate.ViewRect, ERenderTargetLoadAction::EClear);
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TShaderMapRef<FMobileDistortionMergePS> PixelShader(View.ShaderMap);
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FMobileDistortionMergePS::FParameters* PassParameters = GraphBuilder.AllocParameters<FMobileDistortionMergePS::FParameters>();
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PassParameters->RenderTargets[0] = DistortionMergeOutput.GetRenderTargetBinding();
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PassParameters->View = View.ViewUniformBuffer;
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PassParameters->SceneColorTexture = Inputs.SceneColor.Texture;
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PassParameters->SceneColorTextureSampler = TStaticSamplerState<SF_Bilinear, AM_Clamp, AM_Clamp, AM_Clamp>::GetRHI();
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PassParameters->DistortionAccumulateTexture = Inputs.DistortionAccumulate.Texture;
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PassParameters->DistortionAccumulateSampler = TStaticSamplerState<SF_Bilinear, AM_Clamp, AM_Clamp, AM_Clamp>::GetRHI();
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const FScreenPassTextureViewport InputViewport(Inputs.SceneColor);
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const FScreenPassTextureViewport OutputViewport(DistortionMergeOutput);
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AddDrawScreenPass(GraphBuilder, RDG_EVENT_NAME("DistortionMerge"), View, OutputViewport, InputViewport, PixelShader, PassParameters);
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return MoveTemp(DistortionMergeOutput);
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}
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