So I started a test
First I create a sphere, and create a guide line from the sphere, after using guidegroom and guidedeform to create the necessary attributes and adding animation, then in a new geo, I use hairgen and hairclump to create hairs and tie the hairs together.
Then there is a problem with hairclump! Rotate the sphere, the hair will rotate abnormally.
It seems to be related to the tangent attribute of hairclump.
Changing the shape method from ‘extrude and blend’ to ‘linear blend’ can solve this problem, but I don’t want to do this because it will change the hair styling. Is there a better solution?