is it possible to have a twist attr. in a follow curve ik? I'm trying to make a spine and I need the twist attr to rotate bones in Y, or some CHOP op that does that.

thx

I believe that creating a Curve at the Object level with the Path tool gives you this option. The handles from the path can be twisted and make the bones twist appropriately.

I haven't tried this yet (don't have Houdini at work) and I think this was covered earlier, so please check an earlier post if this isn't correct.

-Craig

yes that would do the job but I'm interested if I can access the bone rotations from CHOPS because I wanna make an expression for them (something like cubic fallof, in light terms).
many thx for the path CV at the obj level solution.

thx

The solution is output by the InverseKin CHOP. So you can directly manipulate those values in CHOPs.