Hi, I see Overlap2dRenderer is doing the job, but it looks like it's doing too much for one system and at the same time like it could be difficult to split its logic on sub-systems. I could just recommend (1) convert everything possible to libgdx/bod2d domain objects (sprite/color/lighting/collisions...) and (2) assign component-system to these objects. I'm sure it's a big chance you will want add more functionality in scene renderer... into Overlap2dRenderer.