The {@link com.jme3.post.SceneProcessor} interface is used as the base interface for all render processing. The SceneProcessor contains hooks for various rendering events.

One use of render processing is post-processing, which is applying effects on an already-rendered scene. The engine's post-processing system is implemented in the {@link com.jme3.post.FilterPostProcessor} class, which contains a list of {@link com.jme3.post.Filter filters}. Each are invoked in order to apply various effects on the rendered scene.