MovieScenePreAnimatedMaterialParameters.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreTypes.h"
#include "UObject/ObjectKey.h"
#include "Evaluation/PreAnimatedState/MovieScenePreAnimatedObjectStorage.h"
#include "Evaluation/PreAnimatedState/MovieScenePreAnimatedStateStorage.h"
#include "Materials/MaterialParameters.h"
 
namespace UE::MovieScene
{
 
struct FMaterialParameterKey
{
    FObjectKey BoundMaterial;
    FMaterialParameterInfo ParameterInfo;
 
    MOVIESCENETRACKS_API FMaterialParameterKey(const FObjectComponent& InBoundMaterial, const FName& InParameterName);
    MOVIESCENETRACKS_API FMaterialParameterKey(const FObjectComponent& InBoundMaterial, const FMaterialParameterInfo& InParameterInfo);
 
    friend MOVIESCENETRACKS_API uint32 GetTypeHash(const FMaterialParameterKey& InKey);
 
    friend MOVIESCENETRACKS_API bool operator==(const FMaterialParameterKey& A, const FMaterialParameterKey& B);
};
 
struct FMaterialParameterCollectionScalarTraits : FBoundObjectPreAnimatedStateTraits
{
    using KeyType = FMaterialParameterKey;
    using StorageType = float;
 
    static MOVIESCENETRACKS_API void ReplaceObject(FMaterialParameterKey& InOutKey, const FObjectKey& NewObject);
 
    static MOVIESCENETRACKS_API float CachePreAnimatedValue(const FObjectComponent& InBoundMaterial, const FName& ParameterName);
    static MOVIESCENETRACKS_API float CachePreAnimatedValue(const FObjectComponent& InBoundMaterial, const FMaterialParameterInfo& ParameterInfo);
 
    static MOVIESCENETRACKS_API void RestorePreAnimatedValue(const FMaterialParameterKey& InKey, float OldValue, const FRestoreStateParams& Params);
};
 
struct FMaterialParameterCollectionVectorTraits : FBoundObjectPreAnimatedStateTraits
{
    using KeyType = FMaterialParameterKey;
    using StorageType = FLinearColor;
 
    static MOVIESCENETRACKS_API void ReplaceObject(FMaterialParameterKey& InOutKey, const FObjectKey& NewObject);
 
    static MOVIESCENETRACKS_API FLinearColor CachePreAnimatedValue(const FObjectComponent& InBoundMaterial, const FName& ParameterName);
    static MOVIESCENETRACKS_API FLinearColor CachePreAnimatedValue(const FObjectComponent& InBoundMaterial, const FMaterialParameterInfo& ParameterInfo);
 
    static MOVIESCENETRACKS_API void RestorePreAnimatedValue(const FMaterialParameterKey& InKey, const FLinearColor& OldValue, const FRestoreStateParams& Params);
};
 
struct FPreAnimatedScalarMaterialParameterStorage
    : public TPreAnimatedStateStorage<FMaterialParameterCollectionScalarTraits>
{
    static MOVIESCENETRACKS_API TAutoRegisterPreAnimatedStorageID<FPreAnimatedScalarMaterialParameterStorage> StorageID;
};
 
struct FPreAnimatedVectorMaterialParameterStorage
    : public TPreAnimatedStateStorage<FMaterialParameterCollectionVectorTraits>
{
    static MOVIESCENETRACKS_API TAutoRegisterPreAnimatedStorageID<FPreAnimatedVectorMaterialParameterStorage> StorageID;
};
 
} // namespace UE::MovieScene