38 lines
1.2 KiB
C++
38 lines
1.2 KiB
C++
// Copyright 2020-2024 CesiumGS, Inc. and Contributors
|
|
|
|
#pragma once
|
|
|
|
#include "CesiumCommon.h"
|
|
#include "Engine/AssetUserData.h"
|
|
#include "CesiumMaterialUserData.generated.h"
|
|
|
|
/**
|
|
* Instances of this user data class are automatically attached to all materials
|
|
* that are used by Cesium for Unreal and that have a Layer Stack named
|
|
* "Cesium". It provides a way for Cesium for Unreal to access the names of the
|
|
* individual layers in the stack at runtime (i.e. outside the Editor) so that
|
|
* they can be mapped to raster overlays.
|
|
*
|
|
* It works by responding, in the Editor, to changes in the Material to which
|
|
* it's attached via the `PostEditChangeOwner` and updating its internal mirror
|
|
* of the layer names. At runtime, these layer names that were configured in the
|
|
* Editor can't be further changed, so the the mirrored list is still valid.
|
|
*/
|
|
UCLASS()
|
|
class UCesiumMaterialUserData : public UAssetUserData {
|
|
GENERATED_BODY()
|
|
|
|
public:
|
|
#if ENGINE_VERSION_5_6_OR_HIGHER
|
|
virtual void PostEditChangeOwner(
|
|
const FPropertyChangedEvent& PropertyChangedEvent) override;
|
|
#else
|
|
virtual void PostEditChangeOwner() override;
|
|
#endif
|
|
|
|
void UpdateLayerNames();
|
|
|
|
UPROPERTY()
|
|
TArray<FString> LayerNames;
|
|
};
|