Create an inverse of a mesh in Three.js that fits into its bounding box?

Questions
1

Create an inverse of a mesh in Three.js that fits into its bounding box?, I’m getting the bounding box from the Mesh by calling THREE.BoxHelper(), I need to create a Mold/Inverse of this mesh, what the best way of achieving this?

2

Hi!
Maybe this topic will be helpful: Manthrax CSG library update: now 20% faster, and using BufferGeometry internally

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