RenderElements can be used to save different elements of the final rendering to separate bitmaps for later compositing.
The following RenderElements are exposed to MAXScript:
alphaRenderElement : MAXObject
atmosphereRenderElement : MAXObject
BackgroundRenderElement: MAXObject
BlendRenderElement : MAXObject
diffuseRenderElement : MAXObject
emissionRenderElement : MAXObject
Illuminance_Render_Element: RenderElement
Lumination_Render_Element : RenderElement
Luminance_Render_Element: RenderElement
MatteRenderElement : RenderElement
PaintRenderElement : RenderElement
reflectionRenderElement : MAXObject
refractionRenderElement : MAXObject
ShadowRenderElement : MAXObject
specularRenderElement : MAXObject