Updated builds.

build/three.js

@@ -1055,15 +1055,13 @@
 
 	Matrix3.prototype.isMatrix3 = true;
 
-	function arrayMax(array) {
-		if (array.length === 0) return -Infinity;
-		let max = array[0];
-
-		for (let i = 1, l = array.length; i < l; ++i) {
-			if (array[i] > max) max = array[i];
+	function arrayNeedsUint32(array) {
+		// assumes larger values usually on last
+		for (let i = array.length - 1; i >= 0; --i) {
+			if (array[i] > 65535) return true;
 		}
 
-		return max;
+		return false;
 	}
 
 	const TYPED_ARRAYS = {
@@ -3764,9 +3762,9 @@
 			return this;
 		}
 
-		setFromObject(object) {
+		setFromObject(object, precise = false) {
 			this.makeEmpty();
-			return this.expandByObject(object);
+			return this.expandByObject(object, precise);
 		}
 
 		clone() {
@@ -3816,7 +3814,7 @@
 			return this;
 		}
 
-		expandByObject(object) {
+		expandByObject(object, precise = false) {
 			// Computes the world-axis-aligned bounding box of an object (including its children),
 			// accounting for both the object's, and children's, world transforms.
 			// For computational efficiency, the computed bounding box may be larger than the minimal world-axis-aligned bounding box.
@@ -3824,21 +3822,31 @@
 			const geometry = object.geometry;
 
 			if (geometry !== undefined) {
-				if (geometry.boundingBox === null) {
-					geometry.computeBoundingBox();
-				}
+				if (precise && geometry.attributes != undefined && geometry.attributes.position !== undefined) {
+					const position = geometry.attributes.position;
+
+					for (let i = 0, l = position.count; i < l; i++) {
+						_vector$b.fromBufferAttribute(position, i).applyMatrix4(object.matrixWorld);
 
-				_box$3.copy(geometry.boundingBox);
+						this.expandByPoint(_vector$b);
+					}
+				} else {
+					if (geometry.boundingBox === null) {
+						geometry.computeBoundingBox();
+					}
 
-				_box$3.applyMatrix4(object.matrixWorld);
+					_box$3.copy(geometry.boundingBox);
 
-				this.union(_box$3);
+					_box$3.applyMatrix4(object.matrixWorld);
+
+					this.union(_box$3);
+				}
 			}
 
 			const children = object.children;
 
 			for (let i = 0, l = children.length; i < l; i++) {
-				this.expandByObject(children[i]);
+				this.expandByObject(children[i], precise);
 			}
 
 			return this;
@@ -7362,7 +7370,7 @@
 
 		setIndex(index) {
 			if (Array.isArray(index)) {
-				this.index = new (arrayMax(index) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute)(index, 1);
+				this.index = new (arrayNeedsUint32(index) ? Uint32BufferAttribute : Uint16BufferAttribute)(index, 1);
 			} else {
 				this.index = index;
 			}
@@ -12473,7 +12481,7 @@
 				}
 			}
 
-			const attribute = new (arrayMax(indices) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute)(indices, 1);
+			const attribute = new (arrayNeedsUint32(indices) ? Uint32BufferAttribute : Uint16BufferAttribute)(indices, 1);
 			attribute.version = version; // Updating index buffer in VAO now. See WebGLBindingStates
 			//
 
@@ -25402,7 +25410,7 @@
 					const d = base + 1; // faces
 
 					indices.push(a, b, d);
-					indices.push(b, c, d);
+					indices.push(c, d, b);
 				}
 			} // build geometry
 

build/three.module.js

@@ -1346,19 +1346,17 @@ class Matrix3 {
 
 Matrix3.prototype.isMatrix3 = true;
 
-function arrayMax( array ) {
+function arrayNeedsUint32( array ) {
 
-	if ( array.length === 0 ) return - Infinity;
+	// assumes larger values usually on last
 
-	let max = array[ 0 ];
+	for ( let i = array.length - 1; i >= 0; -- i ) {
 
-	for ( let i = 1, l = array.length; i < l; ++ i ) {
-
-		if ( array[ i ] > max ) max = array[ i ];
+		if ( array[ i ] > 65535 ) return true;
 
 	}
 
-	return max;
+	return false;
 
 }
 
@@ -4845,11 +4843,11 @@ class Box3 {
 
 	}
 
-	setFromObject( object ) {
+	setFromObject( object, precise = false ) {
 
 		this.makeEmpty();
 
-		return this.expandByObject( object );
+		return this.expandByObject( object, precise );
 
 	}
 
@@ -4924,7 +4922,7 @@ class Box3 {
 
 	}
 
-	expandByObject( object ) {
+	expandByObject( object, precise = false ) {
 
 		// Computes the world-axis-aligned bounding box of an object (including its children),
 		// accounting for both the object's, and children's, world transforms.
@@ -4937,16 +4935,30 @@ class Box3 {
 
 		if ( geometry !== undefined ) {
 
-			if ( geometry.boundingBox === null ) {
+			if ( precise && geometry.attributes != undefined && geometry.attributes.position !== undefined ) {
+
+				const position = geometry.attributes.position;
+				for ( let i = 0, l = position.count; i < l; i ++ ) {
 
-				geometry.computeBoundingBox();
+					_vector$b.fromBufferAttribute( position, i ).applyMatrix4( object.matrixWorld );
+					this.expandByPoint( _vector$b );
 
-			}
+				}
+
+			} else {
+
+				if ( geometry.boundingBox === null ) {
+
+					geometry.computeBoundingBox();
+
+				}
+
+				_box$3.copy( geometry.boundingBox );
+				_box$3.applyMatrix4( object.matrixWorld );
 
-			_box$3.copy( geometry.boundingBox );
-			_box$3.applyMatrix4( object.matrixWorld );
+				this.union( _box$3 );
 
-			this.union( _box$3 );
+			}
 
 		}
 
@@ -4954,7 +4966,7 @@ class Box3 {
 
 		for ( let i = 0, l = children.length; i < l; i ++ ) {
 
-			this.expandByObject( children[ i ] );
+			this.expandByObject( children[ i ], precise );
 
 		}
 
@@ -9579,7 +9591,7 @@ class BufferGeometry extends EventDispatcher {
 
 		if ( Array.isArray( index ) ) {
 
-			this.index = new ( arrayMax( index ) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute )( index, 1 );
+			this.index = new ( arrayNeedsUint32( index ) ? Uint32BufferAttribute : Uint16BufferAttribute )( index, 1 );
 
 		} else {
 
@@ -16252,7 +16264,7 @@ function WebGLGeometries( gl, attributes, info, bindingStates ) {
 
 		}
 
-		const attribute = new ( arrayMax( indices ) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute )( indices, 1 );
+		const attribute = new ( arrayNeedsUint32( indices ) ? Uint32BufferAttribute : Uint16BufferAttribute )( indices, 1 );
 		attribute.version = version;
 
 		// Updating index buffer in VAO now. See WebGLBindingStates
@@ -34987,7 +34999,7 @@ class LatheGeometry extends BufferGeometry {
 				// faces
 
 				indices.push( a, b, d );
-				indices.push( b, c, d );
+				indices.push( c, d, b );
 
 			}