UDebugDrawComponent

Navigation

API > API/Runtime > API/Runtime/Engine > API/Runtime/Engine/Debug

Inheritance Hierarchy

• UObjectBase
• UObjectBaseUtility
• UObject
• UActorComponent
• USceneComponent
• UPrimitiveComponent
• UDebugDrawComponent
• USmartObjectDebugRenderingComponent

References

Syntax

UCLASS (Abstract,  
       HideCategories=(Activation, AssetUserData, Collision, Cooking, HLOD, Lighting, LOD, Mobile, Navigation, Physics, RayTracing, Rendering, Tags, TextureStreaming),  
       MinimalAPI)  
class UDebugDrawComponent : public UPrimitiveComponent  
Copy full snippet

UCLASS (Abstract,        HideCategories=(Activation, AssetUserData, Collision, Cooking, HLOD, Lighting, LOD, Mobile, Navigation, Physics, RayTracing, Rendering, Tags, TextureStreaming),        MinimalAPI) class UDebugDrawComponent : public UPrimitiveComponent

Remarks

Helper class to derive from to use debug draw delegate functionalities (i.e. DrawDebugLabels) The class will take care of registering a delegate to the UDebugDrawService and draw all FText3d provided by the scene proxy. This functionality only requires the derived classes to override `CreateDebugSceneProxy_.

It is also possible to add text from other sources of data from the scene proxy but that requires a few extra steps:

• create a class that inherits from `FDebugDrawDelegateHelper_
• override `DrawDebugLabels_
• add a method to be able to populate the source data from the scene proxy ex: class FMyDelegateHelper : public FDebugDrawDelegateHelper { public: void SetupFromProxy(const FMySceneProxy* InSceneProxy) { }; protected: virtual void DrawDebugLabels(UCanvas* Canvas, APlayerController*) override { }; private: TArray SomeData; };
• Within the component inheriting from `UDebugDrawComponent_
• add a property of that new helper type in the component inheriting from `UDebugDrawComponent_
• override `GetDebugDrawDelegateHelper_ to return that new member as the new delegate helper to use
• and then use it in `CreateDebugSceneProxy_ before returning the created proxy. ex: class MyDebugDrawComponent : public UDebugDrawComponent { protected: virtual FDebugRenderSceneProxy* CreateDebugSceneProxy() override { FMySceneProxy* Proxy = new FMySceneProxy(this); MyDelegateHelper.SetupFromProxy(Proxy); return Proxy; } virtual FDebugDrawDelegateHelper& GetDebugDrawDelegateHelper() override { return MyDelegateHelper; } private: FMyDelegateHelper MyDelegateHelper; }

Variables

Functions

Overridden from UPrimitiveComponent

Overridden from UActorComponent