mrdoob/three.js — comment on commit 9809101319612e9e0abc9f13e7b42c22cd569e24
File:  line 0
By alteredq:

Seems good, passed my extreme moon dance tests much better than any other solution ;).

I can still break it, but it takes more effort and artefacts are less jarring (maybe these are just compound numerical errors as opposed to flippings that happened before).