I posted this is Scripts but ment to be here I have three video clips and i want to do the split screens but the pan/crop does work for me. What am i doing wrong. The help topic does have anything about it in Vegas
head on over to VASST.com and you'll find three different methods of triple split screens. Do a search for "Split screen" or just "split" and you'll get several hits.
Track motion, masking, and pan/crop can all be applied as techniques. Cookie cutter can be used too, but that's really the same as masking.