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#jira UE-131150 #rnx #rb none #fyi sebastien.lussier #preflight 61f3fce3f628752a568a332d [CL 18770923 by Kevin Ortegren in ue5-main branch]
91 lines
3.8 KiB
C++
91 lines
3.8 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "Modules/ModuleInterface.h"
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#include "PixelFormat.h"
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#include "SceneTypes.h"
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#include "IMaterialBakingModule.h"
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#include "MaterialPropertyEx.h"
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class UTextureRenderTarget2D;
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class UMaterialOptions;
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class UMaterialInterface;
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class FExportMaterialProxy;
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class FTextureRenderTargetResource;
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struct FMaterialData;
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struct FMeshData;
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struct FBakeOutput;
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class MATERIALBAKING_API FMaterialBakingModule : public IMaterialBakingModule
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{
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public:
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/** IModuleInterface overrides begin */
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virtual void StartupModule();
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virtual void ShutdownModule();
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/** IModuleInterface overrides end */
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/** Bakes out material properties according to MaterialSettings using MeshSettings and stores the output in Output */
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virtual void BakeMaterials(const TArray<FMaterialData*>& MaterialSettings, const TArray<FMeshData*>& MeshSettings, TArray<FBakeOutput>& Output) override;
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/** Bakes out material properties according to extended MaterialSettings using MeshSettings and stores the output in Output */
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virtual void BakeMaterials(const TArray<FMaterialDataEx*>& MaterialSettings, const TArray<FMeshData*>& MeshSettings, TArray<FBakeOutputEx>& Output) override;
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/** Promps a slate window to allow the user to populate specific material baking settings used while baking out materials */
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virtual bool SetupMaterialBakeSettings(TArray<TWeakObjectPtr<UObject>>& OptionObjects, int32 NumLODs) override;
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/** Outputs true HDR version of emissive color */
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virtual void SetEmissiveHDR(bool bHDR) override;
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/** Bakes all material properties to linear textures, except for colors */
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virtual void SetLinearBake(bool bCorrectLinear) override;
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protected:
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/* Creates and adds or reuses a RenderTarget from the pool */
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UTextureRenderTarget2D* CreateRenderTarget(bool bInForceLinearGamma, EPixelFormat InPixelFormat, const FIntPoint& InTargetSize);
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/* Creates and adds (or reuses a ExportMaterialProxy from the pool if MaterialBaking.UseMaterialProxyCaching is set to 1) */
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FExportMaterialProxy* CreateMaterialProxy(const FMaterialDataEx* MaterialSettings, const FMaterialPropertyEx& Property);
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/** Helper for emissive color conversion to Output */
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static void ProcessEmissiveOutput(const FFloat16Color* Color16, int32 Color16Pitch, const FIntPoint& OutputSize, TArray<FColor>& Output, float& EmissiveScale);
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/** Cleans up all cached material proxies in MaterialProxyPool */
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void CleanupMaterialProxies();
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/** Callback for modified objects which should be removed from MaterialProxyPool in that case */
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void OnObjectModified(UObject* Object);
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/** Callback used to clear material proxy cache on garbage collection */
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void OnPreGarbageCollect();
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private:
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enum EPropertyColorSpace
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{
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Linear,
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sRGB,
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};
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/** Pool of available render targets, cached for re-using on consecutive property rendering */
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TArray<UTextureRenderTarget2D*> RenderTargetPool;
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/** Pool of cached material proxies to optimize material baking workflow, stays resident when MaterialBaking.UseMaterialProxyCaching is set to 1 */
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typedef TWeakObjectPtr<UMaterialInterface> FMaterialPoolKey;
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typedef TPair<FMaterialPropertyEx, FExportMaterialProxy*> FMaterialPoolValue;
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typedef TMultiMap<FMaterialPoolKey, FMaterialPoolValue, FDefaultSetAllocator, TWeakObjectPtrMapKeyFuncs<FMaterialPoolKey, FMaterialPoolValue, true /*bInAllowDuplicateKeys*/>> FMaterialPoolMap;
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FMaterialPoolMap MaterialProxyPool;
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/** Pixel formats to use for baking out specific material properties */
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TMap<FMaterialPropertyEx, EPixelFormat> PerPropertyFormat;
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/** Whether or not to enforce gamma correction while baking out specific material properties */
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TMap<FMaterialPropertyEx, EPropertyColorSpace> PerPropertyColorSpace;
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EPropertyColorSpace DefaultColorSpace;
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bool bEmissiveHDR;
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};
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