I just recently released v0.4.0 which made some API improvements and added a couple new features to enable a bit more flexibility in the BVH. I also added a new geometry sculpting demo inspired by tools like SculptGL and ZBrush. There are still some improvements that could be made to improve performance and add features but it was a fun little demo to make. WebXR sculpting would be a cool addition.
You can check it out here:
https://gkjohnson.github.io/three-mesh-bvh/example/bundle/sculpt.html
