Hair, to avoid long hair penetration

[snikt]

Hi,
have you tried using a hair collision constraint to the head.
It is under Hair/Create constraint/Collide Sphere-Cube.The constraints could be parented to the collision objects.Just remember to scale it to your geometry size.Actually keep it slightly bigger than the collision geometry.It should work in most cases.
Cheers.

[HJ-panorama]

thank you
well, the head Geometry, itself, Is a collision object with hair now so hairs collide with that so I thought It is not necessary to make another collision sphere

although, I've tried a collision sphere and performed not much better than that of the head itself..

[Remi]

Spheres that are slightly bigger than what you want the hair to actually collide with will probably give you better results and will also help in narrowing down any "issues" vs. using the actual geometry. But I could be wrong. That's just what I would do. For shots that need closeups of hair sliding across a face or what-not, you might have to make a different setup just for those shots.

[snikt]

Hi,
I agree with Remi on the scaling issue.It should be slightly bigger than the geometry itself.Try not to have the geometry collision on at all times.Use only when absolutely needed.Try to position/scale the collision sphere such that it pushes the hair slightly away from the geometry.
Cheers.

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