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65 lines
2.7 KiB
C++
65 lines
2.7 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "Containers/ArrayView.h"
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#include "RHI.h"
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#include "RHIResources.h"
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#include "RHICommandList.h"
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#if RHI_RAYTRACING
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class FRayTracingGeometry;
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class FRHIComputeCommandList;
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enum class EAccelerationStructureBuildMode;
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enum class ERTAccelerationStructureBuildPriority : uint8;
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namespace RayTracing
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{
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using GeometryGroupHandle = int32;
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}
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class IRayTracingGeometryManager
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{
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public:
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using BuildRequestIndex = int32;
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using RayTracingGeometryHandle = int32;
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virtual ~IRayTracingGeometryManager() = default;
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RENDERCORE_API virtual BuildRequestIndex RequestBuildAccelerationStructure(FRayTracingGeometry* InGeometry, ERTAccelerationStructureBuildPriority InPriority, EAccelerationStructureBuildMode InBuildMode) = 0;
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BuildRequestIndex RequestBuildAccelerationStructure(FRayTracingGeometry* InGeometry, ERTAccelerationStructureBuildPriority InPriority)
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{
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return RequestBuildAccelerationStructure(InGeometry, InPriority, EAccelerationStructureBuildMode::Build);
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}
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RENDERCORE_API virtual void RemoveBuildRequest(BuildRequestIndex InRequestIndex) = 0;
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RENDERCORE_API virtual void BoostPriority(BuildRequestIndex InRequestIndex, float InBoostValue) = 0;
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RENDERCORE_API virtual void ForceBuildIfPending(FRHIComputeCommandList& InCmdList, const TArrayView<const FRayTracingGeometry*> InGeometries) = 0;
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RENDERCORE_API virtual void ProcessBuildRequests(FRHIComputeCommandList& InCmdList, bool bInBuildAll = false) = 0;
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RENDERCORE_API virtual RayTracingGeometryHandle RegisterRayTracingGeometry(FRayTracingGeometry* InGeometry) = 0;
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RENDERCORE_API virtual void ReleaseRayTracingGeometryHandle(RayTracingGeometryHandle Handle) = 0;
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/*
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* RayTracing::GeometryGroupHandle is used to group multiple FRayTracingGeometry that are associated with the same asset.
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* For example, the FRayTracingGeometry of all the LODs of UStaticMesh should use the same RayTracing::GeometryGroupHandle.
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* This grouping is useful to keep track which proxies need to be invalidated when a FRayTracingGeometry is built or made resident.
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*/
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RENDERCORE_API virtual RayTracing::GeometryGroupHandle RegisterRayTracingGeometryGroup(uint32 NumLODs, uint32 CurrentFirstLODIdx = 0) = 0;
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RENDERCORE_API virtual void ReleaseRayTracingGeometryGroup(RayTracing::GeometryGroupHandle Handle) = 0;
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RENDERCORE_API virtual void RequestUpdateCachedRenderState(RayTracing::GeometryGroupHandle InRayTracingGeometryGroupHandle) = 0;
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RENDERCORE_API virtual void RefreshRegisteredGeometry(RayTracingGeometryHandle Handle) = 0;
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RENDERCORE_API virtual void PreRender() = 0;
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RENDERCORE_API virtual void Tick(FRHICommandList& RHICmdList) = 0;
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};
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extern RENDERCORE_API IRayTracingGeometryManager* GRayTracingGeometryManager;
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#endif // RHI_RAYTRACING
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