Hair constraints not moving


#1

[font=Arial]Hi, nuuuub alert :slight_smile:

Grab a hair example from Visor (ShortWithBangs.ma).
Create a few joints.[/font]
[font=Arial] Smooth skin the ‘scalp’ (geometry associated with the hair system) to the root joint.[/font]
[font=Arial] Rotate a joint, everything moves except the hair constraint.[/font]
[font=Arial] I would expect the hair constraint to move with a model as it’s animated? [/font]
[font=Arial] I figure being a beginner I’ve missed something very basic?[/font]

[font=Arial] The constraint is parented to the scalp.[/font]
[font=Arial] I’ve tried removing the parent relationship, skinning then parenting
and tried a number of combinations, even tried a dynamic parent constraint - wotever one of those is …[/font]

[font=Arial]Thanx for your time, any help appreciated.[/font]


#2

does it work when you playblast it? Just a thought.


#3

no it doesn’t playblast.
But then tbh I wouldn’t expect it to if it doesn’t work in persp view.

Thx for your reply though, your the only person who’s read the thread by the looks.


#4

try making your own hair system on the scalp geometry and see if it behaves like youd expect. May be a way to narrow down what the exact problem is…or post your file and ill try and take a look at it when i get home.


#5

Hi,
I have a model that I originally created the hair system on, but wen I animated it the constraints didn’t move. So I figured keep it simple and grab a hair example and try from there.

It’s very kind of you to have a look at the file. I have created a new clean example from scratch - details in the notes text object.

thanx for your time


#6

k took a look at your scene. Problem there is that the scalp doesn’t actually receive any world transforms as it is skinned to a joint.

I removed the hair constraint from the parent to the scalp then parent constrained it to the closest bone with maintain offset still on. Works for me. Good luck.


#7

ah kool, thanx so much, really appreciate the help.


#8

your welcome :slight_smile:


#9

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