Hello All,
I am using the lws reader (I think I have Marco Jex to thank for that right? :). It uses Animation Paths (I am pretty sure) to take the keyframed animation from a LW scene. I have noticed that in doing a rotation (say heading from 0 to 360) over time, that in OSG it doesn't go anywhere. I am guessing that Animation Path just makes a quat for the rotation one time for the attitude given, rather than at each frame, and the quats are interpolated rather than the original heading values. So a 0 degree rotation is the same as a 360 degree rotation, no motion. Same kind of issue arises if I run from 0 - 270, I am sure osg would run from 0-90. Additionally, there is not any support AFAIK for splines, ease in/out, etc.
I was wondering if that was something that could be modified, or if I should try to modify animation path and submit it, or if I should try to tweak the .lws reader to create a new version of the Animation Path callback to handle it.
If I am to work on it, what do you think is the best way? I figure either:
1. Work with a quat? (Can a quat represent 360 degrees differently than 0? I don't think so)
2. Interpolate between the values rather than the quats
3. Insert more keyframes
None of these sound very clever do they? Any ideas?
Thanks,
-- Rick
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