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- ( function () {
- class ConvexGeometry extends THREE.BufferGeometry {
- constructor( points ) {
- super(); // buffers
- const vertices = [];
- const normals = [];
- if ( THREE.ConvexHull === undefined ) {
- console.error( 'THREE.ConvexBufferGeometry: ConvexBufferGeometry relies on THREE.ConvexHull' );
- }
- const convexHull = new THREE.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 THREE.Float32BufferAttribute( vertices, 3 ) );
- this.setAttribute( 'normal', new THREE.Float32BufferAttribute( normals, 3 ) );
- }
- }
- THREE.ConvexGeometry = ConvexGeometry;
- } )();
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