Are there any libraries for easier editing of geometry, like splitting edges, bisecting faces, etc?

[dubois]

Extract vertices in edge-connection order from BufferGeometry for "is inside polygon" check

Hi, You can do this using a half edge structure. class HalfEdge { constructor(){ this.twin = null this.a = null this.b = null } } const edges = [] triangles.forEach(triangle=>{ triangle.forEach((vertex,vertexIndex)=>{ const edge = new HalfEdge() edge.a = vertex edge.b = triangle[(vertexIndex + 1) % 3 ] edges.push(edge) }) //now every triangle has 3 edges, we need to find which one doesnt have a twin const edgeMap = {} //initialize the map vertices.for…