Answered

How to make circular motions ?

Bjørn Terje Hansebråten 4 years ago updated by Peter - Soxware Developer 4 years ago 3

This head movement is imported from a motion capture asset.

How can I use Umotion to make perfect circular motions ? 

Youtube video
UMotion Version:
Unity Version:

Answer

Answer
Answered

Hi Bjørn,

thanks for reaching out.


There is no tool to make a perfect circular motion. So the only real option is to do it by hand (switching rotation mode to euler and adjusting the curves directly might help). Please note that a "perfect" circular motion might look very robotic, it's often better to have small imperfections as it makes the animation look more natural.

Please let me know in case you have any follow-up questions.

Best regards,
Peter

GOOD, I'M SATISFIED

Ok, Then I see it is best to open the curves and add keys. Working good.

Satisfaction mark by Bjørn Terje Hansebråten 4 years ago
Answer
Answered

Hi Bjørn,

thanks for reaching out.


There is no tool to make a perfect circular motion. So the only real option is to do it by hand (switching rotation mode to euler and adjusting the curves directly might help). Please note that a "perfect" circular motion might look very robotic, it's often better to have small imperfections as it makes the animation look more natural.

Please let me know in case you have any follow-up questions.

Best regards,
Peter

Ok, working in the curve mode works great by adding keys.I change the rotation to euler, but what is  euler mode doing  ?

There are 2 common ways to represent rotations in 3D space: Euler angles and quaternions. Euler uses 3 rotation values (rotation around x, rotation around y, rotation around z in degrees) while quaternions uses 4 valuse/dimensions (thus very hard to imagine for humans). Euler suffers from gimbal lock where quaternions do not.

For further information, please check out the following video tutorial or do some research on the topic euler vs quaternions:

Please let me know if you have any further questions.


Best regards,
Peter