Inverse function?

[SelaO]

Where is the inverse function from the original CSG?

http://evanw.github.io/csg.js/docs/

[chandlerprall]

invert is present on any ThreeBSP.Node objects, the top-level one is the tree property on a ThreeBSP instance.

[SelaO]

What is the difference between the tree and node?

[chandlerprall]

The tree property is a node, it just happens to be the top-level node and provides access to the entire BSP tree.

[SelaO]

So how do you properly invert a geometry?

Doing:

const geometryCsg = new ThreeBSP(geometryThree);
geometryCsg..tree.invert();  // or geometryCsg..tree = geometryCsg..tree.invert();
geometryCsg.toGeometry();

or

let inv = geometryCsg.tree.invert(); 
let binv = new ThreeBSP(inv): 
binv.toGeometry();

Just returns the same shape as before.

[chandlerprall]

I'd expect your first code block (invert, convert to geometry) to work. Are you sure the material you're rendering with doesn't render both sides?

[makc]

@SelaO

how do you properly invert a geometry?

isnt it simply flipping normals? or, in terms of buffer geometry, swapping vertices 3n and 3n+1