Stability and memory issues

[plattfot]

Hi,

Apologize for creating an empty issue at first. Accidentally hit enter when creating the subject and that turns out publish the whole issue. 🤦

I've been playing around with libWetHair (I wrote a houdini plugin for it, unfortunately proprietary at the moment). And I noticed that certain scenarios will cause the hair solver to explode. That in term can cause the dripping stage to go out of control and generate hundreds of gigabytes of data causing my machine to ram out or hit swap and hang.

I would like to add some way to either detect this and just abort or avoid things exploding in the first place. I've started reading the Stable Constrained Dynamics paper by Tournier et al. to get a better understanding of how the hair solver is setup. But I'm not sure exactly where in the code I should start looking. Any recommendations? And did you folks encounter any similar issues while developing libWetHair and ideas on how to fix it?

Thanks