https://github.com/WWBN/AVideo/issues/8713

node_modules/three/examples/js/geometries/ConvexGeometry.js

@@ -0,0 +1,52 @@
+// ConvexGeometry
+
+THREE.ConvexGeometry = 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.ConvexGeometry.prototype = Object.create( THREE.BufferGeometry.prototype );
+THREE.ConvexGeometry.prototype.constructor = THREE.ConvexGeometry;