an interesting question was posed on the iClone forum about how would you create animated footprints appearing as a character walked.
I had a few ideas but trying it out, none worked.
Was something I had not thought about but can see the potential for snow displacement and lots of uses
however I do not seem to be able to create a cumulative image series video using alpha of say bottoms of feet appearing through the base of a plane etc to do it.
I have tried various combinations of shadowcatch shaders and alpha channel renders