[Arica West] “I have a scene with a tv which one of the characters is blocking part of the tv.”
You’ll have to rotoscope the character. AE CS5’s Roto Brush tool will be a huge help.
[Arica West] “I need to place a video on that tv. The corners and the center of the tv are marked with green tape.”
Unless your camera is locked down, you’ll need to track the shot. Mocha-AE (included with CS4 and above) is a great tool for tracking planes like your TV screen. You’ll use the tracking data to make your new video move with the camera as if it were placed in the scene. See Aharon Rabinowitz’s tutorial on Mocha-AE Perspective Corner Pin effect.
Once the video is in the shot and the character passes correctly in front of it, you may need to tweak your composite to make it look real. Details sell the shot. See this thread on Adding footage to a TV for some tips.
Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
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