three
Version:
JavaScript 3D library
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JavaScript
console.warn( "THREE.ConvexGeometry: As part of the transition to ES6 Modules, the files in 'examples/js' were deprecated in May 2020 (r117) and will be deleted in December 2020 (r124). You can find more information about developing using ES6 Modules in https://threejs.org/docs/#manual/en/introduction/Installation." );
// ConvexGeometry
THREE.ConvexGeometry = function ( points ) {
THREE.Geometry.call( this );
this.fromBufferGeometry( new THREE.ConvexBufferGeometry( points ) );
this.mergeVertices();
};
THREE.ConvexGeometry.prototype = Object.create( THREE.Geometry.prototype );
THREE.ConvexGeometry.prototype.constructor = THREE.ConvexGeometry;
// ConvexBufferGeometry
THREE.ConvexBufferGeometry = function ( points ) {
THREE.BufferGeometry.call( this );
// buffers
var vertices = [];
var normals = [];
if ( THREE.ConvexHull === undefined ) {
console.error( 'THREE.ConvexBufferGeometry: ConvexBufferGeometry relies on THREE.ConvexHull' );
}
var convexHull = new THREE.ConvexHull().setFromPoints( points );
// generate vertices and normals
var faces = convexHull.faces;
for ( var i = 0; i < faces.length; i ++ ) {
var face = faces[ i ];
var edge = face.edge;
// we move along a doubly-connected edge list to access all face points (see HalfEdge docs)
do {
var 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.ConvexBufferGeometry.prototype = Object.create( THREE.BufferGeometry.prototype );
THREE.ConvexBufferGeometry.prototype.constructor = THREE.ConvexBufferGeometry;