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* This avoids GPU under-utilization in scenes where a very large number of individual occlusion queries is issued * Possible r.SceneDepthHZBAsyncCompute values: * 0: Don't use async compute (default) * 1: Use async compute, start as soon as possible * 2: Use async compute, start after ComputeLightGrid.CompactLinks pass #preflight 636c555f7c2b5051903a24ca #rb Graham.Wihlidal [CL 23072519 by yuriy odonnell in ue5-main branch]
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "ScenePrivate.h"
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#include "RenderGraph.h"
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#include "SceneTextureParameters.h"
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struct FBuildHZBAsyncComputeParams
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{
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FRDGPassRef Prerequisite = nullptr;
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};
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static constexpr EPixelFormat BuildHZBDefaultPixelFormat = PF_R16F;
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void BuildHZB(
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FRDGBuilder& GraphBuilder,
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FRDGTextureRef SceneDepth,
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FRDGTextureRef VisBufferTexture,
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const FIntRect ViewRect,
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ERHIFeatureLevel::Type FeatureLevel,
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EShaderPlatform ShaderPlatform,
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const TCHAR* ClosestHZBName,
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FRDGTextureRef* OutClosestHZBTexture,
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const TCHAR* FurthestHZBName,
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FRDGTextureRef* OutFurthestHZBTexture,
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EPixelFormat Format = BuildHZBDefaultPixelFormat,
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const FBuildHZBAsyncComputeParams* AsyncComputeParams = nullptr);
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// Build only the furthest HZB
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void BuildHZBFurthest(
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FRDGBuilder& GraphBuilder,
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FRDGTextureRef SceneDepth,
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FRDGTextureRef VisBufferTexture,
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const FIntRect ViewRect,
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ERHIFeatureLevel::Type FeatureLevel,
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EShaderPlatform ShaderPlatform,
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const TCHAR* FurthestHZBName,
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FRDGTextureRef* OutFurthestHZBTexture,
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EPixelFormat Format = BuildHZBDefaultPixelFormat,
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const FBuildHZBAsyncComputeParams* AsyncComputeParams = nullptr);
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