[Bf-committers] It's time to get rid of cloth

Ton Roosendaal ton at blender.org
Tue Oct 20 11:51:50 CEST 2020

Hi Joe,

This is a bit harsh, there have been good cloth contributions to Blender 
by Luca Rood. The current module owner for it is Sebastian Parborg though.

I'd suggest to connect with them to see what steps forward could be.

We are also in the process of making a good node physics system to allow 
solvers like this in a more generic setting. Design for this is ongoing.

It's super cool to see you want to come back, just give it a bit of time 
to figure out who's doing what now.

Als note that we (including Blender Foundation / Institute) are in the 
process of organizing ourselves much better, including onboarding, best 
practices, engineering standards amd strict requirements for a good 
design process - including the docs.

We lack in a lot of areas, and the consensus is to especially put 
efforts in bringing the current state of the code in control (functional 
and technical specs), before recoding modules entirely.

Ton Roosendaal - ton at blender.org - www.blender.org
Chairman Blender Foundation, Director Blender Institute
Buikslotermeerplein 161, 1025 ET Amsterdam, the Netherlands

On 20/10/2020 00:30, Joe Eagar via Bf-committers wrote:
> So, ten years ago I wrote several continuous collision detection systems
> for cloth/hair, one of which I tried to push into trunk:
> https://www.youtube.com/watch?v=QBM3TBKO9w8
> And, here's how the cloth sim performs today:
> https://www.youtube.com/watch?v=5462m9yEkU8&feature=youtu.be
> If the cloth development process is this dysfunctional (this patch actually
> passed review?
> https://developer.blender.org/rB0666ece2e2f96571200d693d9d7bee1ca72d026f )
> then I propose we eliminate the cloth code entirely and go with a third
> party lib (Bullet?).
> Joe
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