Unreal Engine 4 Scripting with C++ Cookbook

Creating a custom Primitive Component

Primitive components are the most complex type of Actor Component because they not only have a transform, but are also rendered on screen.

How to do it...

1. Create a custom C++ class based on MeshComponent. When Visual Studio loads, add the following to your class header file:

   UCLASS(ClassGroup=Experimental, meta = (BlueprintSpawnableComponent))
   public:
   virtual FPrimitiveSceneProxy* CreateSceneProxy() override;
   TArray<int32> Indices;
   TArray<FVector> Vertices;
   UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Materials)
   UMaterial* TheMaterial;

2. We need to create an implementation for our overridden CreateSceneProxy function in our cpp file:

   FPrimitiveSceneProxy* UMyMeshComponent::CreateSceneProxy() { FPrimitiveSceneProxy* ...