dforce settings for bikini straps to allow stretching without thinning

FrankTheTank

I'm pretty good getting dforce to work how i want, but the biggest hurdle I face is with things like bikini straps, when they stretch they often become thin like dental floss. The straps are nearly invisible sometimes due to this thinning out while stretching, it really ruins the look of a bikini. I realize it is being realistic, but I don't want realistic. I want the straps to remain the same thickness as when they are in the default fit. What do I need to do to allow the straps to stretch in length, but not become thin in diameter? I've tried numerous things, I know I can paint weight maps to ignore them, but I don't want them ignored, I want the stretch to happen just without the side effects of thinned out straps. 

Richard Haseltine

How about using a dForm, or other mesh manipulator, to create a pre-stretch morph that does what you want (lengthen, I assume, without thining) and then let dForce handle the tightening up with a lesser degree of stretch, that may not narrow them as much?

crosswind

That may depend on the products that you're using... but the commonly-used way is to tweak Buckling Stiffness on the dynamic surfaces to maintain their original shape when draping.
Screenshot 1 is the original shape. Screenshot 2 is with the default settings that has thin shape after simulation.  Screenshot 3 is with the tweaked settings by cranking up Buckling Stiffness and adding some values Velocity Smoothing.

Edit: Alternatively, you also can use dForce dynamic surface Add-on to keep the shape of target area... but that'll require more skills and effort ~~

FrankTheTank

ok, you both gave me some ideas to try out. I'll let you know how it works out.

FrankTheTank

crosswind said:

That may depend on the products that you're using... but the commonly-used way is to tweak Buckling Stiffness on the dynamic surfaces to maintain their original shape when draping.
Screenshot 1 is the original shape. Screenshot 2 is with the default settings that has thin shape after simulation.  Screenshot 3 is with the tweaked settings by cranking up Buckling Stiffness and adding some values Velocity Smoothing.

Edit: Alternatively, you also can use dForce dynamic surface Add-on to keep the shape of target area... but that'll require more skills and effort ~~

by the way, i meant to report back that Buckling Stiffness was the secret sauce that finally worked for me, so thanks!