help! Strange deformation issue in guide cache drive Groom

Excuse me, has anyone also noticed this issue? Perhaps the video I posted earlier did not explain it clearly.Let me briefly describe it again.

  1. I made a small ball in Maya and used Maya Interactive Groom to grow hair. There were not many guide curves driving the Groom. As shown in the following figure:
  2. I made a simple animation of this small ball rotating 180 degrees at the origin position from frame 0 to frame 100 in Maya, and the Groom also naturally moved with the ball.
  3. I use Epic’s official “maya guide to drive Groom” solution, and the page is:
    XGen Guidelines for Hair Creation in Unreal Engine | Unreal Engine 5.3 Documentation

    I successfully imported the guide into UE and drove the Groom.
  4. But I found that the shape of hair in UE is not same with that in Maya. it is as follows:
  1. At frame 0, the rotation value of the ball is 0, and the Groom shape in UE is Same with that in Maya:

  2. At frame 100, the ball rotated 180 degrees, but the fur shape in UE is not with that in Maya. The hair shape in UE appears very ugly, as if it’s being shrunk into clusters by the guide curve.


    So, may I ask if anyone has also encountered this problem? I have been troubled by this for many months. I believe I followed the official Epic solution completely. I hope you can give me some advice. Thank you very much for your help!
1 Like