Forum: Animation


Subject: Strand-based hair for animation? Some thoughts and tests...

maxxxmodelz opened this issue on Feb 04, 2006 ยท 93 posts


maxxxmodelz posted Tue, 07 February 2006 at 12:43 AM

"At some point you have to look at the tradeoff-line between realism and rendertime."

Agreed, but I look at it in the opposite way. If a project is worth it, I'd be willing to swallow larger rendertime to achieve the realism I want. For me, 5 min. per frame at DVD resolutions is acceptable, but I've rarely had to deal that kind of time anyway, even for highly realistic results. Poser, however, is a different animal.

"When you render the animation with the sym in place, which you created with collision on, You can't get the hair to lay still. Even if you halt ALL subtle movements, you know, those little head sways that add realism?.....the hair just won't settle down, strands keep moving as if avoiding collision. Any of you ever take strand hair with collision dynamics into a full render that has a stop in it? Does the hair fully stop for you?"

Yes, it does, if I use enough dampening on the dynamics. Dampening, at least in 3dsmax, keeps the hair from moving until a certain velocity is reached. I don't know if it's the same with Poser's dynamic hair, but that's what it does with Hair and Fur in Max 7.5. This keeps the hair from getting "nervous", and prevents popping/jittering with every little movement that causes collision. If you look at real hair, or study your own hair, it doesn't move a great deal at all until you are really in motion. Subtle movements may make some longer hair move about slightly, but that's all. Even light, thin hair takes a bit of velocity and/or gravity to cause it movement.

One solution for you, Opera, might be to either experiment with dampening parameters in Poser's hair room (I don't recall if it has dampening or not), or to NOT run a simulation for scenes that have only slight movement, and instead keyframe animate the strands for those shots if need be. I think I recall the ability to keyframe animate dynamic hair by moving the strands manually.

Message edited on: 02/07/2006 00:46


Tools :  3dsmax 2015, Daz Studio 4.6, PoserPro 2012, Blender v2.74

System: Pentium QuadCore i7, under Win 8, GeForce GTX 780 / 2GB GPU.