import { BufferGeometry, Float32BufferAttribute } from '../../../build/three.module.js'; import { ConvexHull } from '../math/ConvexHull.js'; class ConvexGeometry extends BufferGeometry { constructor( points ) { super(); // buffers const vertices = []; const normals = []; if ( ConvexHull === undefined ) { console.error( 'THREE.ConvexBufferGeometry: ConvexBufferGeometry relies on ConvexHull' ); } const convexHull = new ConvexHull().setFromPoints( points ); // generate vertices and normals const faces = convexHull.faces; for ( let i = 0; i < faces.length; i ++ ) { const face = faces[ i ]; let edge = face.edge; // we move along a doubly-connected edge list to access all face points (see HalfEdge docs) do { const point = edge.head().point; vertices.push( point.x, point.y, point.z ); normals.push( face.normal.x, face.normal.y, face.normal.z ); edge = edge.next; } while ( edge !== face.edge ); } // build geometry this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) ); } } export { ConvexGeometry };