The EdgeUp plugin is a FREE filter plugin for 3D Studio MAX R1, R1.1 and
R1.2. Render your animation against a black background (RGB 0,0,0). This
filter will reverse the blend process towards the background made by MAX on
the edges of objects and on transparent materials. If you use the alpha
compositor in the video post or composite in another 3D package or video
editing system. It will use the alpha channel to blend the edges correctly
against the current background.