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Poser struggles a little to be able to handle a match-moved camera, so the process is a bit involved. Hopefully Curious Labs will improve the situation in further releases.
The shot must have square pixels to be used properly by Poser; it doesn't understand pixel aspect ratios. So if you have a 720x480 DV source, say, you need to resample it in SynthEyes, After Effects or something to 640x480. Also, the shot has to have a frame rate of exactly 30 fps. This is a drag since normal video is 29.97 fps, and Poser thinks it is 29.00 fps, and trouble ensues. One way to get the frame rate conversion without actually mucking up any of the frames is to store the shot out as a frame sequence, then read it back in to your favorite tool as a 30 fps sequence. Then you can save the 640x480 or other square-pixel size.
Note that you can start with a nice 720x480 29.97 DV shot, track it in SynthEyes, convert it as above for Poser, do your poser animation, render a sequence out of Poser, then composite it back into the original 720x480.
One other thing you need to establish at this time---exactly how many frames there are in your shot. If the shot ranges are 0 to 100, there are 101; from 10 to 223, there are 214.
1. After completing tracking in SynthEyes, export using the Poser Python exporter.
2. Start Poser.
3. Set the number of frames of animation, at bottom center of the Poser interface, to the correct number of frames. It is essential that you do this now, before reading the python script
4. File/Run Python Script on the python script output from SynthEyes.
5. The Poser Dolly camera will be selected and have the SynthEyes camera animation on it. There are little objects for each tracker, and also SynthEyes boxes, cones, etc are brought over into Poser.
Open Question: How to render out of Poser with the animated movie background. The best approach appears to be to render against black with an alpha channel, then composite over the original shot externally.
©2024 Boris FX, Inc. — UNOFFICIAL — Converted from original PDF.