Function VisualServerSingleton.canvasItemAddMultimesh

Adds a MultiMesh to the CanvasItem's draw commands. Only affects its aabb at the moment.

void canvasItemAddMultimesh (
  const(RID) item,
  const(RID) mesh,
  const(RID) texture,
  const(RID) normal_map = RID(godot_rid(0LU))
) nothrow @nogc;