Strand twist question

[Victorcg]

Hello.
Just can't understand the reason, why the twisted strands become straight with time? I want them to be twisted all the time of simulation.
And why they have linear interpolation instead of cubic. Can I change it?
Thank You.

[Mathaeus]

Hello.
Just can't understand the reason, why the twisted strands become straight with time? I want them to be twisted all the time of simulation.

If you want to keep deformation, you need to apply it in post-simulation mode, by using a new ICE tree. Just in similar way as keeping deformations on meshes, simulated with Syflex or SI Cloth.

And why they have linear interpolation instead of cubic. Can I change it?

What kind of strand. For lofting shapes along strands, there is adaptive tesselation. For segments-MR hair primitives, as far as I know, there is no any interpolation, but you can create your own. For example, you can use 'Fitted Bezier Curve' compound from Phil Pack, then you build a new strand which using strand positions of original one, as control points for bezier curve.

[Victorcg]

Hello.
Just can't understand the reason, why the twisted strands become straight with time? I want them to be twisted all the time of simulation.

If you want to keep deformation, you need to apply it in post-simulation mode, by using a new ICE tree. Just in similar way as keeping deformations on meshes, simulated with Syflex or SI Cloth.

And why they have linear interpolation instead of cubic. Can I change it?

What kind of strand. For lofting shapes along strands, there is adaptive tesselation. For segments-MR hair primitives, as far as I know, there is no any interpolation, but you can create your own. For example, you can use 'Fitted Bezier Curve' compound from Phil Pack, then you build a new strand which using strand positions of original one, as control points for bezier curve.

Thank You!!!Where can I read about both of the cases of my second question (about curvature)?
I was talking about lofting shapes along strand in my second question.They have corners and I want them smooth


P.S. Sorry for my english.

[Mathaeus]

Thank You!!!Where can I read about both of the cases of my second question (about curvature)?

Something like commented part of ICE tree. Compounds are from Phil Pack. Keep in mind that this will change strand count, so attributes like variable strand size won't work anymore, they have to be created again. If you simulate strands, again, apply this with separate ICE tree, in post-simulation region.

P.S. It's good idea to set the new strand count as a multiplier of original one, like Self.StrandCount * 2, or 3, so on.

[Victorcg]

Thank You again. Just couldn't find free time to look inside Phil's pack.

[Victorcg]

And here is another question. Can I make strand shape like on thr picture, for example. Talking another words, can I loft the shape of srand from different shapes?