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Some precisions for Kendai:
1) examples/buldozer.py with utils.encodeVideoFromFrames(snapshooter['savedSnapshots'],out='/tmp/buldozer.ogg',fps=30)This uses SnapshotEngine to save .png from the current view every few steps during the simulation. snapshooter['savedSnapshots'] is list of filenames, which are converted to view file by the command Anton has mentioned.It creates video from the current view
The other possibility is to save partial simulation state (positions and orientation of bodies); there are 2 engines for this: (i) SQLiteRecorder, which saves into a single .sqlite file periodically. You can use Yade's player to replay the simulation afterwars; the player is able to save snapshots as well, which can be used to create the video. (ii) VTKRecorder, which saves into a series of .xml files in VTK format, which is useful if you want to use VTK-based visualization tools such as Paraview:
2) examples/buldozerVTK.py (added in r1770) uses VTK-recorder. Creates periodically snapshots in VTK-files. Then you can use the Paraview to render the video or any other VTK software.
Cheers, Vaclav
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