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Old 09-09-2013, 06:04 PM   #1
Julián Rojas Millán
Mathematician, Maya Generalist, Unity Technical Artis
Castillomax Oil & Gas
Caracas, Venezuela
Join Date: Apr 2006
Posts: 144
ncloth chain breaking due velocity, how to prevent it?

Hi, I'm trying to emulate this scene,

What I'm doing is to create a sim geometry, wich is like a lot of rings chained together in way they resembles the actual anatomy (think in the olimpic rings, but shaping a mantis, sort of). The idea is to use folicles to parent the actual geometry.

I'm basing that approach in this thread. It proved to be useful.

For now I'm using a transform constraint to move the sim goemetry. The problem is that the tongue needs to move so fast that is breaking the chain, it doesn't hold entirely. So my questions are:
What is the best way to prevent the breaking due the velocity of the movement?
Do you have any better idea to simulate the scene, another approach maybe.

Just in case you are wondering, the tongue was done in traditional spring dynamic, it was easier to manage, the idea is to parent the ncloth sim to the tongue tip animation. I've done some test on the matter but the major problem ins the chain breaking The leaf was solved entirely, Im glad with the result i have.

Thanks in advanced.

Edit: to emulate the slow mo feel what I'm doing is to cache the sim and rendering in between frames (for the sim go for Create Cache options, for the render go to By Frame in the Render Setting), and then make it slower in After Effects because if you cache a lot of in between frames it tends to brake the simulation (at least in this case).

Last edited by lobachevscki : 09-09-2013 at 06:21 PM.
Old 09-10-2013, 09:42 PM   #2
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Duncan Brinsmead
Principal Scientist
Join Date: Jun 2002
Posts: 3,002
Increase the substeps on the nucleus node. Also make sure the collisionFlag is edge or face not vertex.
Old 09-10-2013, 09:42 PM   #3
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