59 lines
1.5 KiB
C++
59 lines
1.5 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "PixelFormat.h"
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#include "RenderGraphFwd.h"
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#include "RHIFwd.h"
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#include "Math/Vector4.h"
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namespace Froxel
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{
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struct FViewData;
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}
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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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struct FExtraParameters
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{
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FVector4f InvDeviceZToWorldZTransform = FVector4f(0.0f, 0.0f, 1.0f, 0.0f);
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float SceneDepthBias = 0.0f;
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bool bLevel0Unscaled = false;
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};
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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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const Froxel::FViewData* OutFroxelData = nullptr,
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FExtraParameters ExtraParameters = {});
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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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FExtraParameters ExtraParameters = {});
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