I'm wanting to "project" a 3d video of people dancing onto a rippling sheet, which is itself an imported video. In other words, my goal is to create a movie of a sheet flapping in the wind, on which we see the image of a couple dancing. Is there a way to do this?
Thanks in advance for help!
Pre-compose a still of a sheet and your video footage. Next apply something like Forge Freeform or Displacement Map or any of a bunch of other distortion effects to simulate a waving flag made from your pre-comp.
Working the other way around, if you already have footage of a waving flag and you want to add footage of people dancing to the flag or sheet then you've got a lot, lot, lot, lot more work to do and it's probably not going to turn out very well.
Another option would be to create a waving flag (sheet) in a 3D app and use the video as a texture map.
Sure it's possible. It's just going to be quite a bit of work, namely re-creating the fold structure and shading of the flag/ sheet to bland in your other image. Depends on how the shot is set up, obviously, so before anyone gives long-winded, but unuseful advice, post the image(s).