AssignObjectMatte
Assigns a matte material to selected objects for use with compositing. Use on objects that are being used to block non Matte objects and that don't need to cast or receive shadows.
For a max 5 - 4.2 version of this script - please download bspack_r4_r5_v031.zip. Use the original bspack_r42.zip if you want only max 4.2 compatibility.
The only major differences between script packages are slight version compatibility issues - there are no new scripts added between the 3 packages.