Vellum Part Of A Character?

[Atom]

Is there a way to turn part of a deforming character into vellum?

For this elephant I would like different springy styles for the ears and trunk.

[ParticleSkull]

Hey Atom, I can't make some screenshots now but here's what i'd do:
if the vellum points have an attribrute i@stopped = 1 and other attribute i@gluetoanimation = 1  it will make this points follow the original geometry. If it's 0 in both it will be simulated. Not sure if you have to enable it on the vellum constraints in sops as well

[dyei nightmare]

great question i want to know too

[Atom]

Thanks for the tip ParticleSkull, here is a basic setup working using those two attributes you mentioned above.

// Setup attributes based upon color paint value.
i@stopped = 0;
i@gluetoanimation = 0;
if (@Cd.r==0) {
    i@stopped = 1;
    i@gluetoanimation = 1;
}

I am wondering if some kind of strut constraint might help the trunk keep it's volume better?

 

Edited December 1, 2018 by Atom

[Atom]

It looks like more Constraint Iterations helps a lot to remove the floppy effect, here I have raised it from 100 to 300.

I also added in a Struts constraint and turned the Stiffness up from 100 to 1,000. The green spheres are produces by the visualizer in the post process node. I lowered the Thickness on the initial vellumcloth1 node while keeping an eye on the size of the green spheres. Make sure the green spheres don't overlap each other.

Edited December 1, 2018 by Atom

[dyei nightmare]

1 hour ago, Atom said:

It looks like more Constraint Iterations helps a lot to remove the floppy effect, here I have raised it from 100 to 300.

 

 great, but whats your set up regarding your skeleton joints?  or are you appling this on a baked animated geometry? i guess? 

Edited December 1, 2018 by dyei nightmare

[dyei nightmare]

btw i havent tested this, you are working with these integer values,  but what about stiffness?  i gues it responds in the same maner you are defining stopped variable??? 

did you managed the trunk controlling stiffness?

Edited December 1, 2018 by dyei nightmare