Hallo Mazlov, lot of thanks for your explanation. I think I don't will get deeper in the math of generic Bezier and Cubic Hermite spline. But this is good to know how Ae and C4D interpret these tangent values. Meanwhile I finished my script that push every selected Ae-Shape direct to C4D. Works fine so far. Thanks for your help! Tudor

Hi with Cinema4D you can pass an absolute path to a python script, and it will be executed. You do not need any other argument just "Cinema 4D.exe" {ABSOLUTE_PATH_TO_PYTHON_FILES.py}. Note that this only work with Cinema 4D and not commandline ore c4dpy. Cheers, Maxime.

Hi, please, do not delete discussions threads. The contained information might be valuable for future readers. Cheers, Andreas

Hi, unfortunately we can't help developing algorithms. So, what has been said here and in the Quaternion Rotation thread, is probably all we can contribute from MAXON's side. Maybe somebody from our community is willing to step into this and help out? Cheers, Andreas