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tear off function? 6 months 1 week ago #343

  • dai
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Hi,
Is there any way to tear off a cloth?
I searched this forum and help document and couldn't find out.

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tear off function? 6 months 1 week ago #344

  • Sebastian
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Hi dai,

We currently do not have a dedicated tearing functionality.
However, you can manually create a tearing effect by using Carbon Bindings along the "tearing section", one for each tearing point, and animate their Activation parameter from 1 to 0 to deactivate one at a time.
I have attached a file demonstrating this.
The file also shows two main tricks to making it look more realistic.
Firstly, we are overlapping the start geometry and removing collision primitives in the overlap to prevent the cloth from self-intersecting in those areas. This gives the illusion of one seamless piece of cloth - until it tears.
Secondly, we use cross-binding, meaning that we bind points from the left to primitives to the right, and vice versa.
By using twice the amount of Binding as needed, we rigidify the area and prevent sharp creasing behavior, which in turn would ruin the illusion of having one continuous cloth in the beginning.

Please let me know if you have any questions or issues.

Cheers,
Sebastian
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tear off function? 6 months 1 week ago #345

  • admin
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Dai, just to add that we continue to work towards a true tearing solution.
It's not simple to handle changing mesh topology, when you also want performance...
Easy to do with no regard to performance, but we live in the real world ...

Anyway we are getting closer to having a proper Carbon Cloth tearing solution, sometime during 2020 it will arrive.

Cheers,
Mike

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tear off function? 6 months 1 week ago #346

  • dai
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Great help! Thank you so much!

If I used this technique, I may also use merge vertices to make un-teared edges smoother.

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tear off function? 6 months 1 week ago #347

  • dai
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I was checking Bifrost cloth in Maya and found that it can tear off its cloth object and I was curious if Carbon could do that or not. I don't really need the tear off function for my current projects.
I also found that Carbon is x14 faster than Bifrost on my PC so I'd love to use Carbon anyway :-)

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tear off function? 5 months 3 weeks ago #351

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Dai,

Also Carbon is about to get a performance boost in the next version in March ....
The amount will depend on the scene and your CPU, but I think 20% - 100% is possible ...
Watch this space....

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tear off function? 5 months 3 weeks ago #352

  • dai
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Wow!
Have you eavesdropped on our conversation? We just talked about a speed comparison between carbon and vellum at our project meeting ;-p
Performance boost is a very good news for us!

I hope the resolution independent would come to carbon too..

oops. I've forgotten that this thread is in "Carbon For Maya". Sorry.

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tear off function? 5 months 3 weeks ago #353

  • Sebastian
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Hi dai,

Our plugins share the same underlying physics solver, so any performance boost in the solver will be beneficial to all plugins.

Cheers,
Sebastian
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