I had same needs. I ended up porting MCUT to swift. you can take a look at my repo https://github.com/dariu5h/mcut-swift.git it's a swift package. Import it and go wild. I will change it more in future but it works fine now. ask your ai of choise about it, it can make a fast sample code for you. I added some helpers for RealityKit MeshResource and MDLMesh from ModelIO The original C++ library is https://cutdigital.github.io/mcut.site/ The most powefull library I worked with in 3D mesh opration was CGAL but you can not port it to iOS. But MCUT is only Boolean ops and In my package you can use it on iOS/macOS. I tried to surface must of the important operations and options.

Worked Perfectly. Thank you Sir.