Unfortunately I use the windows platform, so syphon isn't available. I would like to use After Effects for content, but I am a starving artist and hope there is a free download somewhere. I've been looking into vvvv and processing, but After Effects is probably more suitable as I'm already familiar with Photoshop.
If I understand you correctly, you are saying that I should create the .mov content and bring it into VPT to size the frames on each layer, save my presets and sequences, then play them, do screen capture of the output into video production software to create an .avi file of the finished show to then project on the building.
I have a meeting with the historic preservation commission of an old industrial town here, I would like to interest them in converting some factories into art, or maybe history exhibits.
btw, I just downloaded VPT 7R4 - I hope I have better luck learning with it because R2 was prone to crashing (windows 8, intel i7 w/integrated hd graphics) 'runtime errorR6025 pure virtual function call'