I see a lot of editors puting animations from animation programs like C4D into real CoD scenes and I was wondering how to do this. I know that somehow a transparant background or something is used so you just have to get the right angle in the CoD scene and put it on top. Im new to C4D so does anyone know to do this?

Heres a video with this effect: [ Register or Signin to view external links. ]

Thanks.