topic Re: nHair location problem in render in Maya Dynamics Forum

nHair location problem in render

Anonymous — Tue, 31 Oct 2017 15:28:06 GMT

Hi,
I made hair to my character by drawing curves and making curves dynamic. Hair doesn't follow the mesh despite there are follicles, I don't know why.
Then I tried to parent hair to bone, that should work too, but something strange happened. When I rotate my character's bone, everything is ok in the viewport, but hair rotates more than it should in render view. How could this happen? I even tried to rotate hair alone (by just selecting hair and rotate) the same situation happened. I created new hair, but that didn't work too.

Re: nHair location problem in render

Michael_Todd — Tue, 31 Oct 2017 17:50:43 GMT

Does the mesh that has the follicles attached have good, clean UV's? With no overlaps? nHair needs UV's and they can fail if the UV's are missing or degenerate UV's

Re: nHair location problem in render

Anonymous — Tue, 31 Oct 2017 18:29:39 GMT

Yes, I made a seperate head skin for hair.
Now made new UV for that skin and made new hair but again hair doesn't move with the mesh. Curves are moving but hair stays 😕
I'm following tutorials step by step but something goes wrong and I can't get what

Re: nHair location problem in render

Michael_Todd — Tue, 31 Oct 2017 22:00:47 GMT

Is the mesh animated? I've seen issues where animation driven by an alembic cache can mess up the UV's as the animation progresses. I got around it by using a blend shape to the cached geo so the UVs didnt blow up

Cheers

Re: nHair location problem in render

Anonymous — Wed, 01 Nov 2017 09:00:05 GMT

Hmm no, hair does not follow mesh even if it is not animated.
Now I made a very simple newbie test;

In a new blank project I created a plane, I made 4 nurb curves on it, made curves dynamic, selected paint effects, "attach curves to selected curves option" is also selected. New hair occured with follicles and when I move the plane, curves and hair are moving as well.

In my project, I did the exact same thing, (far from my model, with a new plane and 4 curves) New hair and follicles occurs as well, but when I move the plane, curves and follicles are moving, but hair doesn't..

It is like my project is cursed or something 🙂

Re: nHair location problem in render

Anonymous — Wed, 01 Nov 2017 13:51:24 GMT

Hi again,
After I realized problem is something with my project, I exported everything, opened new project and imported again, then I made the hair again with current curves. Now the problem solved.
Thank you for making me focus on follicle instead of rotate problem 🙂