# \#three-bvh

**URL:** https://discourse.threejs.org/tag/three-bvh/1477.md

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## [Three-bvh-csg with web worker](https://discourse.threejs.org/t/three-bvh-csg-with-web-worker/75610)

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**Author:** [@Cien267](https://discourse.threejs.org/u/Cien267)\
**Replies:** 3\
**Last updated:** [December 24, 2024, 8:31pm UTC](https://discourse.threejs.org/t/three-bvh-csg-with-web-worker/75610 "2024-12-24T20:31:03Z")

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Hello everyone, I am using three-bvh-csg library, but due to the complexity of the objects, the subtraction operation takes a very long time. While it is processing, my website becomes unresponsive, and I can’t even dis…

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## [Building the three-bvh-csg environment afresh](https://discourse.threejs.org/t/building-the-three-bvh-csg-environment-afresh/54357)

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**Author:** [@oldman](https://discourse.threejs.org/u/oldman)\
**Replies:** 1\
**Last updated:** [July 28, 2023, 5:09pm UTC](https://discourse.threejs.org/t/building-the-three-bvh-csg-environment-afresh/54357 "2023-07-28T17:09:13Z")

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Another rather basic question, please: I wish to build a completely new three and three-bvh-csg environment and work on the example programs in three-bvh-csg. Please confirm if the following steps are correct: (1) do…