InterchangeMeshUtilities.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Async/Future.h"
#include "InterchangeFactoryBase.h"
#include "UObject/Object.h"
#include "UObject/ObjectMacros.h"
 
#include "InterchangeMeshUtilities.generated.h"
 
#define UE_API INTERCHANGEENGINE_API
 
class UInterchangeSourceData;
class USkeletalMesh;
 
class FInterchangeSkeletalMeshAlternateSkinWeightPostImportTask : public FInterchangePostImportTask
{
public:
    UE_API FInterchangeSkeletalMeshAlternateSkinWeightPostImportTask(USkeletalMesh* InSkeletalMesh);
 
    virtual ~FInterchangeSkeletalMeshAlternateSkinWeightPostImportTask() {};
 
    UE_API virtual void Execute() override;
 
    // This delegate should execute the following editor function (since we are a runtime module we need this delegate to call the editor function)
    // FSkinWeightsUtilities::ReimportAlternateSkinWeight(SkeletalMesh, LodIndex);
    DECLARE_DELEGATE_RetVal_TwoParams(bool, FInterchangeReimportAlternateSkinWeight, USkeletalMesh*, int32 LodIndex);
    FInterchangeReimportAlternateSkinWeight ReimportAlternateSkinWeightDelegate;
 
    UE_API bool AddLodToReimportAlternate(int32 LodToAdd);
    
private:
    TObjectPtr<USkeletalMesh> SkeletalMesh;
 
    //Alternate skin weights reimport
    TArray<int32> ReImportAlternateSkinWeightsLods;
};
 
UCLASS(BlueprintType, MinimalAPI)
class UInterchangeMeshUtilities : public UObject
{
    GENERATED_BODY()
public:
 
    static INTERCHANGEENGINE_API bool ShowMeshFilePicker(FString& OutFilename, const FText& Title);
 
    static INTERCHANGEENGINE_API TFuture<bool> ImportCustomLod(UObject* MeshObject, const int32 LodIndex, const UInterchangeSourceData* SourceData, bool bAsync);
 
    static INTERCHANGEENGINE_API TFuture<bool> ImportMorphTarget(USkeletalMesh* SkeletalMesh, const int32 LodIndex, const UInterchangeSourceData* SourceData, bool bAsync, const FString& MorphTargetName);
 
    UFUNCTION(BlueprintCallable, Category = "SkeletalMesh | MorphTarget")
    bool ScriptedImportMorphTarget(USkeletalMesh* SkeletalMesh, const int32 LodIndex, const UInterchangeSourceData* SourceData, const FString& MorphTargetName) const
    {
        constexpr bool bAsyncFalse = false;
        return ImportMorphTarget(SkeletalMesh, LodIndex, SourceData, bAsyncFalse, MorphTargetName).Get();
    }
 
 
private:
 
    static TFuture<bool> InternalImportCustomLod(TSharedPtr<TPromise<bool>> Promise, UObject* MeshObject, const int32 LodIndex, const UInterchangeSourceData* SourceData, bool bAsync);
};
 
 
#undef UE_API