Quote Originally Posted by clintman View Post
It's the process of stacking and color correcting layers of video. I guess the simplest example would be rendering an image sequence from something like Houdini and then layering that sequence on top of a video you shot with your camcorder or shooting someone in green screen, removing the green and layering them on top of the video.
Thank you! I've looked around for the explanations but yours is more clear!

The more I watch the video of Houdini, the more I think I'll focus on this one ...