cloth cache not respecting tear?

Hello,

I have a pretty simple setup for this one. I am animating the ribbon transducer in a microphone tearing under extreme load. I have set up a very basic simulation with cloth, the tear function and a couple of colliders. It’s working well enough, but when I then attempt to cache the solution so I can render on the network, the cache is not respecting the tear, so I instead get this huge deformation, which is not what i want.

Is there a known issue in R13 with the cloth cache and the tear function? Is there a work around, or something I am possibly missing?

Again, the simulation works fine until I cache it.

Thanks for any input,
- Will

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Mac Pro 12 x 2.6 GHz 64GB Quadro K5000
OSX 10.10.4
MacBook Pro 4 x 2.3GHz 16GB GeForce GT 750M
OSX 10.10.5
C4D R18 Studio/CC/VizRT
Will's Works

In my experience, Cloth needs a ClothNURBS to behave.


Cheers
Lennart

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MSA | OSX | xfiles ...Cinema4D Tools

Hi Lennart,

yeah, it is in a cloth NURB... should the cloth tag perhaps be on that instead of the geometry?

__________________
Mac Pro 12 x 2.6 GHz 64GB Quadro K5000
OSX 10.10.4
MacBook Pro 4 x 2.3GHz 16GB GeForce GT 750M
OSX 10.10.5
C4D R18 Studio/CC/VizRT
Will's Works

A workaround would be Lennarts steadybake, and bakeing it to a xrec seq

I'm pretty sure caching has never worked with cloth tears, it's not a new bug AFAIK.

Cheers,
Brian

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Animation & Rigging Reels
mayaTools blog

Hi Aaron. yeah, I'm a big fan of Steady Bake, and did try it (specifically PLA Mate), but got the same results as the Cloth Cache method.



Well, that does seem likely, albeit unfortunate. It's clear that the bake is picking up all the point values, it's just not splitting the geometry.

Ultimately, I just rendered the scene out on my single machine... took 5 hours. It's shame it's not a scaleable technique, but at least I know I haven't gone mad. (this was my first time to use the tear function of the cloth engine).

Thanks again all! If I get any other solutions or workarounds figured out, I'll update the post.

__________________
Mac Pro 12 x 2.6 GHz 64GB Quadro K5000
OSX 10.10.4
MacBook Pro 4 x 2.3GHz 16GB GeForce GT 750M
OSX 10.10.5
C4D R18 Studio/CC/VizRT
Will's Works

xREC works, but I just tried a ball thru a cloth set up as a membrane.
A ClothNurb as parent and cached it in the cloth tag. Worked fine.

Cheers
Lennart

__________________
MSA | OSX | xfiles ...Cinema4D Tools

Ah, interesting. This isn't really too dissimilar to my setup. I hadn't used xREC before, just PLA Mate. When I selected it in the plugins menu, I was surprised by the 'Choose a Folder' dialogue and window that opened. Once I get past this movie, I'll read the docs on that plugin and see what I need to do with that.

Thanks Lennart!

__________________
Mac Pro 12 x 2.6 GHz 64GB Quadro K5000
OSX 10.10.4
MacBook Pro 4 x 2.3GHz 16GB GeForce GT 750M
OSX 10.10.5
C4D R18 Studio/CC/VizRT
Will's Works

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