Left side is UE2.26.2 groom hair, right side is UE5 Early Access groom hair.
Same hair, same character, same project ( copy of it in UE5 when I opened it there )
All settings are the same on the character and hair.
There is no wind or external forces at all
The hair in UE5 moves all over the place for no reason and then walking ( walk speed 120, not running ) it is like the character is going at a fast speed and the front of the hair is blowing back from the wind, the sides and back are all fine, however when running ( walk speed 300 ), then the hair is mostly fine, it doesnât move like the walk speed hair does and reacts more like it would be on a real person. ( minus the hair sticking out like it does when the character is standing still )
After pass through a portal while running.
The portals just teleport to the other portal location in the same map.
The hair keep is offset in stand, walk, jog, run etcâŚ
In the Groom asset Physics tab, increase values of âSub Stepsâ and âIteration Countâ.
Values 5 & 5 for those used to work in UE4, but similar result in UE5 requires value 10 on both in my case.
Hi ďźDid you fix it ? I have this trouble too . My character riding a motorcycle ďź and her hair look like your hair too when she moving . I try to find out how to contral Groom spring simulation ďźbut canât get any detailed information about it .
Hello,
I am working on this for days, and Iâd really appreciate your expertâs advice. I am getting very different hair simulation in UE4 and UE5. I import a groom asset in UE5.0.2 (Not EA anymore). I have enabled the two plugins âGroomâ and âAlembic Groom Importerâ. Furthermore, I have checked the âSupport Compute Skin Cacheâ tick box in the project settings, just as the documentation said. But for the love of G*d I cannot get the groom on the head of the character without it spread all over like itâs colliding something. I am attaching 2 pictures. One is a messy UE5 groom and the other - a UE4 groom sitting nicely (itâs the same groom). It happens when I tick âEnable simulationâ in the solver settings of the groom asset. Anybody else experienced that behavior ?
So, the solution for me was :
a) Set Collision radius from 10 to 0.1 (that in itself is not enough).
b) Change the physical asset of my chracter so that the collision shapes will not stick out much.
I will attach a photo. One picture can speak a thousand words as they say.
Hope this helps.
All the best.