95 lines
3.7 KiB
C++
95 lines
3.7 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "UObject/Interface.h"
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#include "GeometryCollectionExternalRenderInterface.generated.h"
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class UGeometryCollection;
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class UGeometryCollectionComponent;
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UINTERFACE(MinimalAPI)
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class UGeometryCollectionExternalRenderInterface : public UInterface
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{
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GENERATED_BODY()
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};
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class IGeometryCollectionExternalRenderInterface
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{
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GENERATED_BODY()
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public:
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enum EStateFlags
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{
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EState_Visible = 1 << 0,
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EState_Broken = 1 << 1,
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EState_ForcedBroken = 1 << 2,
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};
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/** Returns true if the custom renderer can't render for the given state, and requires native rendering instead. */
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virtual bool ShouldUseNativeFallback(uint32 InStateFlags) const { return false; }
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/** Returns true if this renderer can ever return true for ShouldUseNativeFallback(). */
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virtual bool CanEverUseNativeFallback() const { return false; }
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/** Called on geometry collection component registration. */
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virtual void OnRegisterGeometryCollection(UGeometryCollectionComponent& InComponent) = 0;
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/** Called on geometry collection component unregistration. */
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virtual void OnUnregisterGeometryCollection() = 0;
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/**
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* Set the state of the geometry collection.
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* This is used by the renderer to managed resources with regards to the state (see EStateFlags).
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*/
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virtual void UpdateState(UGeometryCollection const& InGeometryCollection, FTransform const& InComponentTransform, uint32 InStateFlags) = 0;
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/**
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* Update the root bone transform of the geometry collection.
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* If the geometry collection is using of multiple proxy root meshes this transform applies to all of them.
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*/
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virtual void UpdateRootTransform(UGeometryCollection const& InGeometryCollection, FTransform const& InRootTransform) = 0;
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/**
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* Update the root proxy transforms of the geometry collection.
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* If the geometry collection is using of multiple proxy root meshes, InRootTransforms is expected to contain an entry for each of them .
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* @param InRootTransform Component space root transform
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* @param InRootLocalTransforms Root space local transforms
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*/
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virtual void UpdateRootTransforms(UGeometryCollection const& InGeometryCollection, FTransform const& InRootTransform, TArrayView<const FTransform3f> InRootLocalTransforms) { check(false); };
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/**
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* Update all the bones transforms.
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*/
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virtual void UpdateTransforms(UGeometryCollection const& InGeometryCollection, TArrayView<const FTransform3f> InTransforms) = 0;
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UE_DEPRECATED(5.4, "Use flags version of UpdateState instead")
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virtual void UpdateState(UGeometryCollection const& InGeometryCollection, FTransform const& InComponentTransform, bool bInIsBroken, bool bInIsVisible)
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{
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uint32 StateFlags = 0;
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StateFlags |= bInIsVisible ? IGeometryCollectionExternalRenderInterface::EState_Visible : 0;
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StateFlags |= bInIsBroken ? IGeometryCollectionExternalRenderInterface::EState_Broken : 0;
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return UpdateState(InGeometryCollection, InComponentTransform, StateFlags);
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};
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UE_DEPRECATED(5.3, "Use FTransform version of UpdateTransforms instead")
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virtual void UpdateTransforms(UGeometryCollection const& InGeometryCollection, TArrayView<const FMatrix> InMatrices) {};
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};
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UINTERFACE(MinimalAPI)
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class UGeometryCollectionCustomDataInterface : public UInterface
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{
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GENERATED_BODY()
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};
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class IGeometryCollectionCustomDataInterface
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{
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GENERATED_BODY()
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public:
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/** Set value to a custom instance data slot by index. The value will be set for all instances the renderer is spawning. */
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virtual void SetCustomInstanceData(int32 CustomDataIndex, float CustomDataValue) = 0;
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/** Set value a custom instance data slot by name. The value will be set for all instances the renderer is spawning. */
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virtual void SetCustomInstanceData(FName CustomDataName, float CustomDataValue) = 0;
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};
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