Setting layer's transform/rotation matrix

[Guest]

Hi All,

I''m working on an AEGP plug-in that needs to keyframe layer's transform. I've got a sequence of 3D rotations stored as quaternions and I'd like to convert it into orientation (or rotation) keyframes. Converting the quaternions to Euler angles is not acceptable in my situation, since due to the multiple possible solutions/angles for the same 'pose', the object flips during animation. The SDK Guide also specifies that Orientation uses quaternion, but I'm not sure how this can help me.

Any ideas ?

Thanks

edit: from this thread http://forums.adobe.com/thread/1142672?tstart=30, it looks like what I'm looking for is not possible:

(shachar carmi):
neither an effect, nor an AEGP can change the transformation matrix. they can only change the param values.

Message was edited by: cbmb

[Guest · Accepted solution]

I've solved my problem by using a custom atan2 function in my Matrix to Euler routine, and converting the result to rotation (X,Y,Z) keyframes.