This is a workflow that uses a specialized point position shader to create a perfect point cloud of your 3D scene in After Effects. You will need Trapcode Form for this to work. I am using Cinema4D, but any 3D application should be able to create a shader like this.
C4D shader setup: jeremycox.com/stuff/PointPositionFiles/pPOS_shader.c4d.zip
- tested in R12 and R13, but should work fine in older versions
AE script: jeremycox.com/stuff/PointPositionFiles/Point_Cloud.jsx.zip
- Only tested with Form 2 on After Effects CS5. May not work with older versions of Form, but should work with AE CS3 and newer.
This is very much a work in progress, so please leave feedback on how you use it, or any ways in which it could be improved. The crazier the better!
NOTE: If you're having trouble getting it to work correctly, make sure your AE bit depth is set to 16bit. I forgot to make that clear in the video.