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Post by Vince De Quattro on Mar 17, 2005 23:35:04 GMT -8
ok...this one I've been trying to figure out most of the day now, the guy in the maya workshop didn't know how to do it...so I'm turning to you all! I have my object motion tracked, etc...working fine. But it's only moving the camera and the 'video' plane. Though really all I want it to move is my object that's going to be in the hand...not the camera or video plane at all! Sooo....How can I go about dong this? I tried to group the object to the trackers...that didn't work. I'm going nuts! okay, here's the process, step by step: 1. render a single frame of your CG sphere against a positioning BG frame - preferrably frame one. import this frame into your compositing software. 2. in the compositing package, track your BG (using the frame you chose above as the first reference frame). use a single marker or a combination of markers. inverting the tracking data will give you a stabilization. with the data inverted, check to see that your BG tracker is perfectly motionless. a perfect stab means a perfect track. note the tracking data should be frame relative, that is, the delta, or difference the tracking marker moved relative to the previous frame... 3. apply the tracking data to the FG layer (the sphere) in the 2D (compositing) package. done
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Post by jgbidwell on Mar 17, 2005 23:57:08 GMT -8
Vince, Is there a effect that tracks the motion for you or do you have to animate the frame position to the bg footage? (In my greenscreen project I had to keyframe each clip to the movement of the camera, based on a object that appeared to move) Any trcks to make this easier would be appreciated. Mybe I'm getting ahead of myslef...
Also, thanks for explaining the "muzzle-flash" trick.
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