There was a script I saw a number of years back that showed how to indicate where a moving camera in 3d in nuke was looking over the course of the shot, for example if you had a piece of geometry with UVs in the background and the camera was panning around, that could be output in UV space with the view of the camera over the course of the shot painting white wherever it was looking. This was useful for the matte painter - when they were painting the projection matte they could see exactly where they needed to focus their efforts. I've gotten most of it figured out, but haven't been able to figure out how to get the projection to persist so you get an accumulation of all the frames into one.
Hopefully that makes sense. :) Anyone know what basic thing I'm missing? Much obliged.... J.C.
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