FBatchKey
( TWeakPtr< ICustomSlateElement, ESPM..., const FClipStateHandle InClipStateH...)
( const FShaderParams& InShaderParam..., ESlateShader InShaderType, ESlateDrawPrimitive InDrawPrimitive..., ESlateDrawEffect InDrawEffects, ESlateBatchDrawFlag InDrawFlags, const FClipStateHandle InClipStateH..., int32 InInstanceCount, uint32 InInstanceOffset, ISlateUpdatableInstanceBuffer*...)
( const FShaderParams& InShaderParam..., ESlateShader InShaderType, ESlateDrawPrimitive InDrawPrimitive..., ESlateDrawEffect InDrawEffects, ESlateBatchDrawFlag InDrawFlags, const FClipStateHandle InClipStateH..., int32 InInstanceCount, uint32 InInstanceOffset, ISlateUpdatableInstanceBuffer*..., int32 InSceneIndex)