GeometryCollectionRootProxyRenderer.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "GeometryCollection/GeometryCollectionExternalRenderInterface.h"
 
#include "GeometryCollectionRootProxyRenderer.generated.h"
 
class UGeometryCollectionComponent;
 
UCLASS(MinimalAPI)
class UGeometryCollectionRootProxyRenderer : public UObject, public IGeometryCollectionExternalRenderInterface
{
    GENERATED_BODY()
 
    
    UPROPERTY()
    TArray<TObjectPtr<UStaticMeshComponent>> StaticMeshComponents;
 
public:
    //~ Begin IGeometryCollectionExternalRenderInterface Interface.
    virtual void OnRegisterGeometryCollection(UGeometryCollectionComponent& InComponent) override;
    virtual void OnUnregisterGeometryCollection() override;
    virtual void UpdateState(UGeometryCollection const& InGeometryCollection, FTransform const& InComponentTransform, uint32 InStateFlags) override;
    virtual void UpdateRootTransform(UGeometryCollection const& InGeometryCollection, FTransform const& InRootTransform) override;
    virtual void UpdateRootTransforms(UGeometryCollection const& InGeometryCollection, FTransform const& InRootTransform, TArrayView<const FTransform3f> InRootLocalTransforms) override;
    virtual void UpdateTransforms(UGeometryCollection const& InGeometryCollection, TArrayView<const FTransform3f> InTransforms) override;
    virtual bool ShouldUseNativeFallback(uint32 InStateFlags) const override { return (InStateFlags & EState_Broken) != 0; }
    virtual bool CanEverUseNativeFallback() const override { return true; }
    //~ End IGeometryCollectionExternalRenderInterface Interface.
 
protected:
    bool bIsVisible = true;
 
private:
    void CreateRootProxyComponents(UGeometryCollectionComponent& InComponent);
    void UpdateRootProxyTransforms(UGeometryCollection const& InGeometryCollection, FTransform const& InRootTransform, TArrayView<const FTransform3f> InLocalRootTransforms);
    void ClearRootProxyComponents();
};