bluebey: ぶるべー スタジオのページを公開

1 files changed, 2003 insertions, 0 deletions

diff --git a/public/bluebey-studio/vendor/three/examples/jsm/controls/TransformControls.js b/public/bluebey-studio/vendor/three/examples/jsm/controls/TransformControls.js
new file mode 100644
index 0000000..88fc5e2
--- /dev/null
+++ b/public/bluebey-studio/vendor/three/examples/jsm/controls/TransformControls.js
@@ -0,0 +1,2003 @@
+import {
+	BoxGeometry,
+	BufferGeometry,
+	Controls,
+	CylinderGeometry,
+	DoubleSide,
+	Euler,
+	Float32BufferAttribute,
+	Line,
+	LineBasicMaterial,
+	Matrix4,
+	Mesh,
+	MeshBasicMaterial,
+	Object3D,
+	OctahedronGeometry,
+	PlaneGeometry,
+	Quaternion,
+	Raycaster,
+	SphereGeometry,
+	TorusGeometry,
+	Vector3
+} from 'three';
+
+const _raycaster = new Raycaster();
+
+const _tempVector = new Vector3();
+const _tempVector2 = new Vector3();
+const _tempQuaternion = new Quaternion();
+const _unit = {
+	X: new Vector3( 1, 0, 0 ),
+	Y: new Vector3( 0, 1, 0 ),
+	Z: new Vector3( 0, 0, 1 )
+};
+
+/**
+ * Fires if any type of change (object or property change) is performed. Property changes
+ * are separate events you can add event listeners to. The event type is "propertyname-changed".
+ *
+ * @event TransformControls#change
+ * @type {Object}
+ */
+const _changeEvent = { type: 'change' };
+
+/**
+ * Fires if a pointer (mouse/touch) becomes active.
+ *
+ * @event TransformControls#mouseDown
+ * @type {Object}
+ */
+const _mouseDownEvent = { type: 'mouseDown', mode: null };
+
+/**
+ * Fires if a pointer (mouse/touch) is no longer active.
+ *
+ * @event TransformControls#mouseUp
+ * @type {Object}
+ */
+const _mouseUpEvent = { type: 'mouseUp', mode: null };
+
+/**
+ * Fires if the controlled 3D object is changed.
+ *
+ * @event TransformControls#objectChange
+ * @type {Object}
+ */
+const _objectChangeEvent = { type: 'objectChange' };
+
+/**
+ * This class can be used to transform objects in 3D space by adapting a similar interaction model
+ * of DCC tools like Blender. Unlike other controls, it is not intended to transform the scene's camera.
+ *
+ * `TransformControls` expects that its attached 3D object is part of the scene graph.
+ *
+ * @augments Controls
+ * @three_import import { TransformControls } from 'three/addons/controls/TransformControls.js';
+ */
+class TransformControls extends Controls {
+
+	/**
+	 * Constructs a new controls instance.
+	 *
+	 * @param {Camera} camera - The camera of the rendered scene.
+	 * @param {?HTMLElement} domElement - The HTML element used for event listeners.
+	 */
+	constructor( camera, domElement = null ) {
+
+		super( undefined, domElement );
+
+		const root = new TransformControlsRoot( this );
+		this._root = root;
+
+		const gizmo = new TransformControlsGizmo();
+		this._gizmo = gizmo;
+		root.add( gizmo );
+
+		const plane = new TransformControlsPlane();
+		this._plane = plane;
+		root.add( plane );
+
+		const scope = this;
+
+		// Defined getter, setter and store for a property
+		function defineProperty( propName, defaultValue ) {
+
+			let propValue = defaultValue;
+
+			Object.defineProperty( scope, propName, {
+
+				get: function () {
+
+					return propValue !== undefined ? propValue : defaultValue;
+
+				},
+
+				set: function ( value ) {
+
+					if ( propValue !== value ) {
+
+						propValue = value;
+						plane[ propName ] = value;
+						gizmo[ propName ] = value;
+
+						scope.dispatchEvent( { type: propName + '-changed', value: value } );
+						scope.dispatchEvent( _changeEvent );
+
+					}
+
+				}
+
+			} );
+
+			scope[ propName ] = defaultValue;
+			plane[ propName ] = defaultValue;
+			gizmo[ propName ] = defaultValue;
+
+		}
+
+		// Define properties with getters/setter
+		// Setting the defined property will automatically trigger change event
+		// Defined properties are passed down to gizmo and plane
+
+		/**
+		 * The camera of the rendered scene.
+		 *
+		 * @name TransformControls#camera
+		 * @type {Camera}
+		 */
+		defineProperty( 'camera', camera );
+		defineProperty( 'object', undefined );
+		defineProperty( 'enabled', true );
+
+		/**
+		 * The current transformation axis.
+		 *
+		 * @name TransformControls#axis
+		 * @type {string}
+		 */
+		defineProperty( 'axis', null );
+
+		/**
+		 * The current transformation axis.
+		 *
+		 * @name TransformControls#mode
+		 * @type {('translate'|'rotate'|'scale')}
+		 * @default 'translate'
+		 */
+		defineProperty( 'mode', 'translate' );
+
+		/**
+		 * By default, 3D objects are continuously translated. If you set this property to a numeric
+		 * value (world units), you can define in which steps the 3D object should be translated.
+		 *
+		 * @name TransformControls#translationSnap
+		 * @type {?number}
+		 * @default null
+		 */
+		defineProperty( 'translationSnap', null );
+
+		/**
+		 * By default, 3D objects are continuously rotated. If you set this property to a numeric
+		 * value (radians), you can define in which steps the 3D object should be rotated.
+		 *
+		 * @name TransformControls#rotationSnap
+		 * @type {?number}
+		 * @default null
+		 */
+		defineProperty( 'rotationSnap', null );
+
+		/**
+		 * By default, 3D objects are continuously scaled. If you set this property to a numeric
+		 * value, you can define in which steps the 3D object should be scaled.
+		 *
+		 * @name TransformControls#scaleSnap
+		 * @type {?number}
+		 * @default null
+		 */
+		defineProperty( 'scaleSnap', null );
+
+		/**
+		 * Defines in which coordinate space transformations should be performed.
+		 *
+		 * @name TransformControls#space
+		 * @type {('world'|'local')}
+		 * @default 'world'
+		 */
+		defineProperty( 'space', 'world' );
+
+		/**
+		 * The size of the helper UI (axes/planes).
+		 *
+		 * @name TransformControls#size
+		 * @type {number}
+		 * @default 1
+		 */
+		defineProperty( 'size', 1 );
+
+		/**
+		 * The viewport rectangle, in logical (CSS) pixels with the origin at the lower-left
+		 * of the canvas. Set this when the renderer uses a sub-canvas viewport so pointer
+		 * coordinates map to the correct region. If `null`, the full canvas is used.
+		 *
+		 * @name TransformControls#viewport
+		 * @type {?Vector4}
+		 * @default null
+		 */
+		this.viewport = null;
+
+		/**
+		 * Whether dragging is currently performed or not.
+		 *
+		 * @name TransformControls#dragging
+		 * @type {boolean}
+		 * @readonly
+		 * @default false
+		 */
+		defineProperty( 'dragging', false );
+
+		/**
+		 * Whether the x-axis helper should be visible or not.
+		 *
+		 * @name TransformControls#showX
+		 * @type {boolean}
+		 * @default true
+		 */
+		defineProperty( 'showX', true );
+
+		/**
+		 * Whether the y-axis helper should be visible or not.
+		 *
+		 * @name TransformControls#showY
+		 * @type {boolean}
+		 * @default true
+		 */
+		defineProperty( 'showY', true );
+
+		/**
+		 * Whether the z-axis helper should be visible or not.
+		 *
+		 * @name TransformControls#showZ
+		 * @type {boolean}
+		 * @default true
+		 */
+		defineProperty( 'showZ', true );
+
+		/**
+		 * Whether the xy-plane helper should be visible or not.
+		 *
+		 * @name TransformControls#showXY
+		 * @type {boolean}
+		 * @default true
+		 */
+		defineProperty( 'showXY', true );
+
+		/**
+		 * Whether the yz-plane helper should be visible or not.
+		 *
+		 * @name TransformControls#showYZ
+		 * @type {boolean}
+		 * @default true
+		 */
+		defineProperty( 'showYZ', true );
+
+		/**
+		 * Whether the xz-axis helper should be visible or not.
+		 *
+		 * @name TransformControls#showXZ
+		 * @type {boolean}
+		 * @default true
+		 */
+		defineProperty( 'showXZ', true );
+
+		/**
+		 * Whether the xyze rotation helper should be visible or not.
+		 *
+		 * @name TransformControls#showXYZE
+		 * @type {boolean}
+		 * @default true
+		 */
+		defineProperty( 'showXYZE', true );
+
+		/**
+		 * Whether the e rotation helper should be visible or not.
+		 *
+		 * @name TransformControls#showE
+		 * @type {boolean}
+		 * @default true
+		 */
+		defineProperty( 'showE', true );
+
+		/**
+		 * The minimum allowed X position during translation.
+		 *
+		 * @name TransformControls#minX
+		 * @type {number}
+		 * @default -Infinity
+		 */
+		defineProperty( 'minX', - Infinity );
+
+		/**
+		 * The maximum allowed X position during translation.
+		 *
+		 * @name TransformControls#maxX
+		 * @type {number}
+		 * @default Infinity
+		 */
+		defineProperty( 'maxX', Infinity );
+
+		/**
+		 * The minimum allowed y position during translation.
+		 *
+		 * @name TransformControls#minY
+		 * @type {number}
+		 * @default -Infinity
+		 */
+		defineProperty( 'minY', - Infinity );
+
+		/**
+		 * The maximum allowed Y position during translation.
+		 *
+		 * @name TransformControls#maxY
+		 * @type {number}
+		 * @default Infinity
+		 */
+		defineProperty( 'maxY', Infinity );
+
+		/**
+		 * The minimum allowed z position during translation.
+		 *
+		 * @name TransformControls#minZ
+		 * @type {number}
+		 * @default -Infinity
+		 */
+		defineProperty( 'minZ', - Infinity );
+
+		/**
+		 * The maximum allowed Z position during translation.
+		 *
+		 * @name TransformControls#maxZ
+		 * @type {number}
+		 * @default Infinity
+		 */
+		defineProperty( 'maxZ', Infinity );
+
+		// Reusable utility variables
+
+		const worldPosition = new Vector3();
+		const worldPositionStart = new Vector3();
+		const worldQuaternion = new Quaternion();
+		const worldQuaternionStart = new Quaternion();
+		const cameraPosition = new Vector3();
+		const cameraQuaternion = new Quaternion();
+		const pointStart = new Vector3();
+		const pointEnd = new Vector3();
+		const rotationAxis = new Vector3();
+		const rotationAngle = 0;
+		const eye = new Vector3();
+
+		// TODO: remove properties unused in plane and gizmo
+
+		defineProperty( 'worldPosition', worldPosition );
+		defineProperty( 'worldPositionStart', worldPositionStart );
+		defineProperty( 'worldQuaternion', worldQuaternion );
+		defineProperty( 'worldQuaternionStart', worldQuaternionStart );
+		defineProperty( 'cameraPosition', cameraPosition );
+		defineProperty( 'cameraQuaternion', cameraQuaternion );
+		defineProperty( 'pointStart', pointStart );
+		defineProperty( 'pointEnd', pointEnd );
+		defineProperty( 'rotationAxis', rotationAxis );
+		defineProperty( 'rotationAngle', rotationAngle );
+		defineProperty( 'eye', eye );
+
+		this._offset = new Vector3();
+		this._startNorm = new Vector3();
+		this._endNorm = new Vector3();
+		this._cameraScale = new Vector3();
+
+		this._parentPosition = new Vector3();
+		this._parentQuaternion = new Quaternion();
+		this._parentQuaternionInv = new Quaternion();
+		this._parentScale = new Vector3();
+
+		this._worldScaleStart = new Vector3();
+		this._worldQuaternionInv = new Quaternion();
+		this._worldScale = new Vector3();
+
+		this._positionStart = new Vector3();
+		this._quaternionStart = new Quaternion();
+		this._scaleStart = new Vector3();
+
+		this._getPointer = getPointer.bind( this );
+		this._onPointerDown = onPointerDown.bind( this );
+		this._onPointerHover = onPointerHover.bind( this );
+		this._onPointerMove = onPointerMove.bind( this );
+		this._onPointerUp = onPointerUp.bind( this );
+
+		if ( domElement !== null ) {
+
+			this.connect( domElement );
+
+		}
+
+	}
+
+	connect( element ) {
+
+		super.connect( element );
+
+		this.domElement.addEventListener( 'pointerdown', this._onPointerDown );
+		this.domElement.addEventListener( 'pointermove', this._onPointerHover );
+		this.domElement.addEventListener( 'pointerup', this._onPointerUp );
+
+		this.domElement.style.touchAction = 'none'; // Disable touch scroll
+
+	}
+
+	disconnect() {
+
+		this.domElement.removeEventListener( 'pointerdown', this._onPointerDown );
+		this.domElement.removeEventListener( 'pointermove', this._onPointerHover );
+		this.domElement.removeEventListener( 'pointermove', this._onPointerMove );
+		this.domElement.removeEventListener( 'pointerup', this._onPointerUp );
+
+		this.domElement.style.touchAction = ''; // Restore touch scroll
+
+	}
+
+	/**
+	 * Returns the visual representation of the controls. Add the helper to your scene to
+	 * visually transform the attached  3D object.
+	 *
+	 * @return {TransformControlsRoot} The helper.
+	 */
+	getHelper() {
+
+		return this._root;
+
+	}
+
+	pointerHover( pointer ) {
+
+		if ( this.object === undefined || this.dragging === true ) return;
+
+		if ( pointer !== null ) _raycaster.setFromCamera( pointer, this.camera );
+
+		const intersect = intersectObjectWithRay( this._gizmo.picker[ this.mode ], _raycaster );
+
+		if ( intersect ) {
+
+			this.axis = intersect.object.name;
+
+		} else {
+
+			this.axis = null;
+
+		}
+
+	}
+
+	pointerDown( pointer ) {
+
+		if ( this.object === undefined || this.dragging === true || ( pointer != null && pointer.button !== 0 ) ) return;
+
+		if ( this.axis !== null ) {
+
+			if ( pointer !== null ) _raycaster.setFromCamera( pointer, this.camera );
+
+			const planeIntersect = intersectObjectWithRay( this._plane, _raycaster, true );
+
+			if ( planeIntersect ) {
+
+				this.object.updateMatrixWorld();
+				this.object.parent.updateMatrixWorld();
+
+				this._positionStart.copy( this.object.position );
+				this._quaternionStart.copy( this.object.quaternion );
+				this._scaleStart.copy( this.object.scale );
+
+				this.object.matrixWorld.decompose( this.worldPositionStart, this.worldQuaternionStart, this._worldScaleStart );
+
+				this.pointStart.copy( planeIntersect.point ).sub( this.worldPositionStart );
+
+			}
+
+			this.dragging = true;
+			_mouseDownEvent.mode = this.mode;
+			this.dispatchEvent( _mouseDownEvent );
+
+		}
+
+	}
+
+	pointerMove( pointer ) {
+
+		const axis = this.axis;
+		const mode = this.mode;
+		const object = this.object;
+		let space = this.space;
+
+		if ( mode === 'scale' ) {
+
+			space = 'local';
+
+		} else if ( axis === 'E' || axis === 'XYZE' || axis === 'XYZ' ) {
+
+			space = 'world';
+
+		}
+
+		if ( object === undefined || axis === null || this.dragging === false || ( pointer !== null && pointer.button !== - 1 ) ) return;
+
+		if ( pointer !== null ) _raycaster.setFromCamera( pointer, this.camera );
+
+		const planeIntersect = intersectObjectWithRay( this._plane, _raycaster, true );
+
+		if ( ! planeIntersect ) return;
+
+		this.pointEnd.copy( planeIntersect.point ).sub( this.worldPositionStart );
+
+		if ( mode === 'translate' ) {
+
+			// Apply translate
+
+			this._offset.copy( this.pointEnd ).sub( this.pointStart );
+
+			if ( space === 'local' && axis !== 'XYZ' ) {
+
+				this._offset.applyQuaternion( this._worldQuaternionInv );
+
+			}
+
+			if ( axis.indexOf( 'X' ) === - 1 ) this._offset.x = 0;
+			if ( axis.indexOf( 'Y' ) === - 1 ) this._offset.y = 0;
+			if ( axis.indexOf( 'Z' ) === - 1 ) this._offset.z = 0;
+
+			if ( space === 'local' && axis !== 'XYZ' ) {
+
+				this._offset.applyQuaternion( this._quaternionStart ).divide( this._parentScale );
+
+			} else {
+
+				this._offset.applyQuaternion( this._parentQuaternionInv ).divide( this._parentScale );
+
+			}
+
+			object.position.copy( this._offset ).add( this._positionStart );
+
+			// Apply translation snap
+
+			if ( this.translationSnap ) {
+
+				if ( space === 'local' ) {
+
+					object.position.applyQuaternion( _tempQuaternion.copy( this._quaternionStart ).invert() );
+
+					if ( axis.search( 'X' ) !== - 1 ) {
+
+						object.position.x = Math.round( object.position.x / this.translationSnap ) * this.translationSnap;
+
+					}
+
+					if ( axis.search( 'Y' ) !== - 1 ) {
+
+						object.position.y = Math.round( object.position.y / this.translationSnap ) * this.translationSnap;
+
+					}
+
+					if ( axis.search( 'Z' ) !== - 1 ) {
+
+						object.position.z = Math.round( object.position.z / this.translationSnap ) * this.translationSnap;
+
+					}
+
+					object.position.applyQuaternion( this._quaternionStart );
+
+				}
+
+				if ( space === 'world' ) {
+
+					object.getWorldPosition( _tempVector );
+
+					if ( axis.search( 'X' ) !== - 1 ) {
+
+						_tempVector.x = Math.round( _tempVector.x / this.translationSnap ) * this.translationSnap;
+
+					}
+
+					if ( axis.search( 'Y' ) !== - 1 ) {
+
+						_tempVector.y = Math.round( _tempVector.y / this.translationSnap ) * this.translationSnap;
+
+					}
+
+					if ( axis.search( 'Z' ) !== - 1 ) {
+
+						_tempVector.z = Math.round( _tempVector.z / this.translationSnap ) * this.translationSnap;
+
+					}
+
+					object.position.copy( object.parent.worldToLocal( _tempVector ) );
+
+				}
+
+			}
+
+			object.position.x = Math.max( this.minX, Math.min( this.maxX, object.position.x ) );
+			object.position.y = Math.max( this.minY, Math.min( this.maxY, object.position.y ) );
+			object.position.z = Math.max( this.minZ, Math.min( this.maxZ, object.position.z ) );
+
+		} else if ( mode === 'scale' ) {
+
+			if ( axis.search( 'XYZ' ) !== - 1 ) {
+
+				let d = this.pointEnd.length() / this.pointStart.length();
+
+				if ( this.pointEnd.dot( this.pointStart ) < 0 ) d *= - 1;
+
+				_tempVector2.set( d, d, d );
+
+			} else {
+
+				_tempVector.copy( this.pointStart );
+				_tempVector2.copy( this.pointEnd );
+
+				_tempVector.applyQuaternion( this._worldQuaternionInv );
+				_tempVector2.applyQuaternion( this._worldQuaternionInv );
+
+				_tempVector2.divide( _tempVector );
+
+				if ( axis.search( 'X' ) === - 1 ) {
+
+					_tempVector2.x = 1;
+
+				}
+
+				if ( axis.search( 'Y' ) === - 1 ) {
+
+					_tempVector2.y = 1;
+
+				}
+
+				if ( axis.search( 'Z' ) === - 1 ) {
+
+					_tempVector2.z = 1;
+
+				}
+
+			}
+
+			// Apply scale
+
+			object.scale.copy( this._scaleStart ).multiply( _tempVector2 );
+
+			if ( this.scaleSnap ) {
+
+				if ( axis.search( 'X' ) !== - 1 ) {
+
+					object.scale.x = Math.round( object.scale.x / this.scaleSnap ) * this.scaleSnap || this.scaleSnap;
+
+				}
+
+				if ( axis.search( 'Y' ) !== - 1 ) {
+
+					object.scale.y = Math.round( object.scale.y / this.scaleSnap ) * this.scaleSnap || this.scaleSnap;
+
+				}
+
+				if ( axis.search( 'Z' ) !== - 1 ) {
+
+					object.scale.z = Math.round( object.scale.z / this.scaleSnap ) * this.scaleSnap || this.scaleSnap;
+
+				}
+
+			}
+
+		} else if ( mode === 'rotate' ) {
+
+			this._offset.copy( this.pointEnd ).sub( this.pointStart );
+
+			const ROTATION_SPEED = 20 / this.worldPosition.distanceTo( _tempVector.setFromMatrixPosition( this.camera.matrixWorld ) );
+
+			let _inPlaneRotation = false;
+
+			if ( axis === 'XYZE' ) {
+
+				this.rotationAxis.copy( this._offset ).cross( this.eye ).normalize();
+				this.rotationAngle = this._offset.dot( _tempVector.copy( this.rotationAxis ).cross( this.eye ) ) * ROTATION_SPEED;
+
+			} else if ( axis === 'X' || axis === 'Y' || axis === 'Z' ) {
+
+				this.rotationAxis.copy( _unit[ axis ] );
+
+				_tempVector.copy( _unit[ axis ] );
+
+				if ( space === 'local' ) {
+
+					_tempVector.applyQuaternion( this.worldQuaternion );
+
+				}
+
+				_tempVector.cross( this.eye );
+
+				// When _tempVector is 0 after cross with this.eye the vectors are parallel and should use in-plane rotation logic.
+				if ( _tempVector.length() === 0 ) {
+
+					_inPlaneRotation = true;
+
+				} else {
+
+					this.rotationAngle = this._offset.dot( _tempVector.normalize() ) * ROTATION_SPEED;
+
+				}
+
+
+			}
+
+			if ( axis === 'E' || _inPlaneRotation ) {
+
+				this.rotationAxis.copy( this.eye );
+				this.rotationAngle = this.pointEnd.angleTo( this.pointStart );
+
+				this._startNorm.copy( this.pointStart ).normalize();
+				this._endNorm.copy( this.pointEnd ).normalize();
+
+				this.rotationAngle *= ( this._endNorm.cross( this._startNorm ).dot( this.eye ) < 0 ? 1 : - 1 );
+
+			}
+
+			// Apply rotation snap
+
+			if ( this.rotationSnap ) this.rotationAngle = Math.round( this.rotationAngle / this.rotationSnap ) * this.rotationSnap;
+
+			// Apply rotate
+			if ( space === 'local' && axis !== 'E' && axis !== 'XYZE' ) {
+
+				object.quaternion.copy( this._quaternionStart );
+				object.quaternion.multiply( _tempQuaternion.setFromAxisAngle( this.rotationAxis, this.rotationAngle ) ).normalize();
+
+			} else {
+
+				this.rotationAxis.applyQuaternion( this._parentQuaternionInv );
+				object.quaternion.copy( _tempQuaternion.setFromAxisAngle( this.rotationAxis, this.rotationAngle ) );
+				object.quaternion.multiply( this._quaternionStart ).normalize();
+
+			}
+
+		}
+
+		this.dispatchEvent( _changeEvent );
+		this.dispatchEvent( _objectChangeEvent );
+
+	}
+
+	pointerUp( pointer ) {
+
+		if ( pointer !== null && pointer.button !== 0 ) return;
+
+		if ( this.dragging && ( this.axis !== null ) ) {
+
+			_mouseUpEvent.mode = this.mode;
+			this.dispatchEvent( _mouseUpEvent );
+
+		}
+
+		this.dragging = false;
+		this.axis = null;
+
+	}
+
+	dispose() {
+
+		this.disconnect();
+
+		this._root.dispose();
+
+	}
+
+	/**
+	 * Sets the 3D object that should be transformed and ensures the controls UI is visible.
+	 *
+	 * @param {Object3D} object -  The 3D object that should be transformed.
+	 * @return {TransformControls} A reference to this controls.
+	 */
+	attach( object ) {
+
+		this.object = object;
+		this._root.visible = true;
+
+		return this;
+
+	}
+
+	/**
+	 * Removes the current 3D object from the controls and makes the helper UI invisible.
+	 *
+	 * @return {TransformControls} A reference to this controls.
+	 */
+	detach() {
+
+		this.object = undefined;
+		this.axis = null;
+
+		this._root.visible = false;
+
+		return this;
+
+	}
+
+	/**
+	 * Resets the object's position, rotation and scale to when the current transform began.
+	 */
+	reset() {
+
+		if ( ! this.enabled ) return;
+
+		if ( this.dragging ) {
+
+			this.object.position.copy( this._positionStart );
+			this.object.quaternion.copy( this._quaternionStart );
+			this.object.scale.copy( this._scaleStart );
+
+			this.dispatchEvent( _changeEvent );
+			this.dispatchEvent( _objectChangeEvent );
+
+			this.pointStart.copy( this.pointEnd );
+
+		}
+
+	}
+
+	/**
+	 * Returns the raycaster that is used for user interaction. This object is shared between all
+	 * instances of `TransformControls`.
+	 *
+	 * @returns {Raycaster} The internal raycaster.
+	 */
+	getRaycaster() {
+
+		return _raycaster;
+
+	}
+
+	/**
+	 * Returns the transformation mode.
+	 *
+	 * @returns {'translate'|'rotate'|'scale'} The transformation mode.
+	 */
+	getMode() {
+
+		return this.mode;
+
+	}
+
+	/**
+	 * Sets the given transformation mode.
+	 *
+	 * @param {'translate'|'rotate'|'scale'} mode - The transformation mode to set.
+	 */
+	setMode( mode ) {
+
+		this.mode = mode;
+
+	}
+
+	/**
+	 * Sets the translation snap.
+	 *
+	 * @param {?number} translationSnap - The translation snap to set.
+	 */
+	setTranslationSnap( translationSnap ) {
+
+		this.translationSnap = translationSnap;
+
+	}
+
+	/**
+	 * Sets the rotation snap.
+	 *
+	 * @param {?number} rotationSnap - The rotation snap to set.
+	 */
+	setRotationSnap( rotationSnap ) {
+
+		this.rotationSnap = rotationSnap;
+
+	}
+
+	/**
+	 * Sets the scale snap.
+	 *
+	 * @param {?number} scaleSnap - The scale snap to set.
+	 */
+	setScaleSnap( scaleSnap ) {
+
+		this.scaleSnap = scaleSnap;
+
+	}
+
+	/**
+	 * Sets the size of the helper UI.
+	 *
+	 * @param {number} size - The size to set.
+	 */
+	setSize( size ) {
+
+		this.size = size;
+
+	}
+
+	/**
+	 * Sets the coordinate space in which transformations are applied.
+	 *
+	 * @param {'world'|'local'} space - The space to set.
+	 */
+	setSpace( space ) {
+
+		this.space = space;
+
+	}
+
+	/**
+	 * Sets the colors of the control's gizmo.
+	 *
+	 * @param {number|Color|string} xAxis - The x-axis color.
+	 * @param {number|Color|string} yAxis - The y-axis color.
+	 * @param {number|Color|string} zAxis - The z-axis color.
+	 * @param {number|Color|string} active - The color for active elements.
+	 */
+	setColors( xAxis, yAxis, zAxis, active ) {
+
+		const materialLib = this._gizmo.materialLib;
+
+		materialLib.xAxis.color.set( xAxis );
+		materialLib.yAxis.color.set( yAxis );
+		materialLib.zAxis.color.set( zAxis );
+		materialLib.active.color.set( active );
+		materialLib.xAxisTransparent.color.set( xAxis );
+		materialLib.yAxisTransparent.color.set( yAxis );
+		materialLib.zAxisTransparent.color.set( zAxis );
+		materialLib.activeTransparent.color.set( active );
+
+		// update color caches
+
+		if ( materialLib.xAxis._color ) materialLib.xAxis._color.set( xAxis );
+		if ( materialLib.yAxis._color ) materialLib.yAxis._color.set( yAxis );
+		if ( materialLib.zAxis._color ) materialLib.zAxis._color.set( zAxis );
+		if ( materialLib.active._color ) materialLib.active._color.set( active );
+		if ( materialLib.xAxisTransparent._color ) materialLib.xAxisTransparent._color.set( xAxis );
+		if ( materialLib.yAxisTransparent._color ) materialLib.yAxisTransparent._color.set( yAxis );
+		if ( materialLib.zAxisTransparent._color ) materialLib.zAxisTransparent._color.set( zAxis );
+		if ( materialLib.activeTransparent._color ) materialLib.activeTransparent._color.set( active );
+
+	}
+
+}
+
+// mouse / touch event handlers
+
+function getPointer( event ) {
+
+	if ( this.domElement.ownerDocument.pointerLockElement ) {
+
+		return {
+			x: 0,
+			y: 0,
+			button: event.button
+		};
+
+	} else {
+
+		const rect = this.domElement.getBoundingClientRect();
+		const viewport = this.viewport;
+
+		let originX, originY, regionWidth, regionHeight;
+
+		if ( viewport !== null ) {
+
+			originX = viewport.x;
+			originY = rect.height - viewport.y - viewport.w;
+			regionWidth = viewport.z;
+			regionHeight = viewport.w;
+
+		} else {
+
+			originX = 0;
+			originY = 0;
+			regionWidth = rect.width;
+			regionHeight = rect.height;
+
+		}
+
+		return {
+			x: ( event.clientX - rect.left - originX ) / regionWidth * 2 - 1,
+			y: - ( event.clientY - rect.top - originY ) / regionHeight * 2 + 1,
+			button: event.button
+		};
+
+	}
+
+}
+
+function onPointerHover( event ) {
+
+	if ( ! this.enabled ) return;
+
+	switch ( event.pointerType ) {
+
+		case 'mouse':
+		case 'pen':
+			this.pointerHover( this._getPointer( event ) );
+			break;
+
+	}
+
+}
+
+function onPointerDown( event ) {
+
+	if ( ! this.enabled ) return;
+
+	if ( ! document.pointerLockElement ) {
+
+		this.domElement.setPointerCapture( event.pointerId );
+
+	}
+
+	this.domElement.addEventListener( 'pointermove', this._onPointerMove );
+
+	this.pointerHover( this._getPointer( event ) );
+	this.pointerDown( this._getPointer( event ) );
+
+}
+
+function onPointerMove( event ) {
+
+	if ( ! this.enabled ) return;
+
+	this.pointerMove( this._getPointer( event ) );
+
+}
+
+function onPointerUp( event ) {
+
+	if ( ! this.enabled ) return;
+
+	this.domElement.releasePointerCapture( event.pointerId );
+
+	this.domElement.removeEventListener( 'pointermove', this._onPointerMove );
+
+	this.pointerUp( this._getPointer( event ) );
+
+}
+
+function intersectObjectWithRay( object, raycaster, includeInvisible ) {
+
+	const allIntersections = raycaster.intersectObject( object, true );
+
+	for ( let i = 0; i < allIntersections.length; i ++ ) {
+
+		if ( allIntersections[ i ].object.visible || includeInvisible ) {
+
+			return allIntersections[ i ];
+
+		}
+
+	}
+
+	return false;
+
+}
+
+//
+
+// Reusable utility variables
+
+const _tempEuler = new Euler();
+const _alignVector = new Vector3( 0, 1, 0 );
+const _zeroVector = new Vector3( 0, 0, 0 );
+const _lookAtMatrix = new Matrix4();
+const _tempQuaternion2 = new Quaternion();
+const _identityQuaternion = new Quaternion();
+const _dirVector = new Vector3();
+const _tempMatrix = new Matrix4();
+
+const _unitX = new Vector3( 1, 0, 0 );
+const _unitY = new Vector3( 0, 1, 0 );
+const _unitZ = new Vector3( 0, 0, 1 );
+
+const _v1 = new Vector3();
+const _v2 = new Vector3();
+const _v3 = new Vector3();
+
+class TransformControlsRoot extends Object3D {
+
+	constructor( controls ) {
+
+		super();
+
+		this.isTransformControlsRoot = true;
+
+		this.controls = controls;
+		this.visible = false;
+
+	}
+
+	// updateMatrixWorld updates key transformation variables
+	updateMatrixWorld( force ) {
+
+		const controls = this.controls;
+
+		if ( controls.object !== undefined ) {
+
+			controls.object.updateMatrixWorld();
+
+			if ( controls.object.parent === null ) {
+
+				console.error( 'TransformControls: The attached 3D object must be a part of the scene graph.' );
+
+			} else {
+
+				controls.object.parent.matrixWorld.decompose( controls._parentPosition, controls._parentQuaternion, controls._parentScale );
+
+			}
+
+			controls.object.matrixWorld.decompose( controls.worldPosition, controls.worldQuaternion, controls._worldScale );
+
+			controls._parentQuaternionInv.copy( controls._parentQuaternion ).invert();
+			controls._worldQuaternionInv.copy( controls.worldQuaternion ).invert();
+
+		}
+
+		controls.camera.updateMatrixWorld();
+		controls.camera.matrixWorld.decompose( controls.cameraPosition, controls.cameraQuaternion, controls._cameraScale );
+
+		if ( controls.camera.isOrthographicCamera ) {
+
+			controls.camera.getWorldDirection( controls.eye ).negate();
+
+		} else {
+
+			controls.eye.copy( controls.cameraPosition ).sub( controls.worldPosition ).normalize();
+
+		}
+
+		// Cancel out the parent's transform so the gizmo stays world-aligned.
+
+		if ( this.parent ) {
+
+			_tempMatrix.copy( this.parent.matrixWorld ).invert();
+			_tempMatrix.decompose( this.position, this.quaternion, this.scale );
+
+		}
+
+		super.updateMatrixWorld( force );
+
+	}
+
+	dispose() {
+
+		this.traverse( function ( child ) {
+
+			if ( child.geometry ) child.geometry.dispose();
+			if ( child.material ) child.material.dispose();
+
+		} );
+
+	}
+
+}
+
+class TransformControlsGizmo extends Object3D {
+
+	constructor() {
+
+		super();
+
+		this.isTransformControlsGizmo = true;
+
+		this.type = 'TransformControlsGizmo';
+
+		// shared materials
+
+		const gizmoMaterial = new MeshBasicMaterial( {
+			depthTest: false,
+			depthWrite: false,
+			fog: false,
+			toneMapped: false,
+			transparent: true
+		} );
+
+		const gizmoLineMaterial = new LineBasicMaterial( {
+			depthTest: false,
+			depthWrite: false,
+			fog: false,
+			toneMapped: false,
+			transparent: true
+		} );
+
+		// Make unique material for each axis/color
+
+		const matInvisible = gizmoMaterial.clone();
+		matInvisible.opacity = 0.15;
+
+		const matHelper = gizmoLineMaterial.clone();
+		matHelper.opacity = 0.5;
+
+		const matRed = gizmoMaterial.clone();
+		matRed.color.setHex( 0xff0000 );
+
+		const matGreen = gizmoMaterial.clone();
+		matGreen.color.setHex( 0x00ff00 );
+
+		const matBlue = gizmoMaterial.clone();
+		matBlue.color.setHex( 0x0000ff );
+
+		const matRedTransparent = gizmoMaterial.clone();
+		matRedTransparent.color.setHex( 0xff0000 );
+		matRedTransparent.opacity = 0.5;
+
+		const matGreenTransparent = gizmoMaterial.clone();
+		matGreenTransparent.color.setHex( 0x00ff00 );
+		matGreenTransparent.opacity = 0.5;
+
+		const matBlueTransparent = gizmoMaterial.clone();
+		matBlueTransparent.color.setHex( 0x0000ff );
+		matBlueTransparent.opacity = 0.5;
+
+		const matWhiteTransparent = gizmoMaterial.clone();
+		matWhiteTransparent.opacity = 0.25;
+
+		const matYellowTransparent = gizmoMaterial.clone();
+		matYellowTransparent.color.setHex( 0xffff00 );
+		matYellowTransparent.opacity = 0.25;
+
+		const matYellow = gizmoMaterial.clone();
+		matYellow.color.setHex( 0xffff00 );
+
+		const matGray = gizmoMaterial.clone();
+		matGray.color.setHex( 0x787878 );
+
+		// materials in the below property are configurable via setColors()
+
+		this.materialLib = {
+			xAxis: matRed,
+			yAxis: matGreen,
+			zAxis: matBlue,
+			active: matYellow,
+			xAxisTransparent: matRedTransparent,
+			yAxisTransparent: matGreenTransparent,
+			zAxisTransparent: matBlueTransparent,
+			activeTransparent: matYellowTransparent
+		};
+
+		// reusable geometry
+
+		const arrowGeometry = new CylinderGeometry( 0, 0.04, 0.1, 12 );
+		arrowGeometry.translate( 0, 0.05, 0 );
+
+		const scaleHandleGeometry = new BoxGeometry( 0.08, 0.08, 0.08 );
+		scaleHandleGeometry.translate( 0, 0.04, 0 );
+
+		const lineGeometry = new BufferGeometry();
+		lineGeometry.setAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0,	1, 0, 0 ], 3 ) );
+
+		const lineGeometry2 = new CylinderGeometry( 0.0075, 0.0075, 0.5, 3 );
+		lineGeometry2.translate( 0, 0.25, 0 );
+
+		function CircleGeometry( radius, arc ) {
+
+			const geometry = new TorusGeometry( radius, 0.0075, 3, 64, arc * Math.PI * 2 );
+			geometry.rotateY( Math.PI / 2 );
+			geometry.rotateX( Math.PI / 2 );
+			return geometry;
+
+		}
+
+		// Special geometry for transform helper. If scaled with position vector it spans from [0,0,0] to position
+
+		function TranslateHelperGeometry() {
+
+			const geometry = new BufferGeometry();
+
+			geometry.setAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 1, 1, 1 ], 3 ) );
+
+			return geometry;
+
+		}
+
+		// Gizmo definitions - custom hierarchy definitions for setupGizmo() function
+
+		const gizmoTranslate = {
+			X: [
+				[ new Mesh( arrowGeometry, matRed ), [ 0.5, 0, 0 ], [ 0, 0, - Math.PI / 2 ]],
+				[ new Mesh( arrowGeometry, matRed ), [ - 0.5, 0, 0 ], [ 0, 0, Math.PI / 2 ]],
+				[ new Mesh( lineGeometry2, matRed ), [ 0, 0, 0 ], [ 0, 0, - Math.PI / 2 ]]
+			],
+			Y: [
+				[ new Mesh( arrowGeometry, matGreen ), [ 0, 0.5, 0 ]],
+				[ new Mesh( arrowGeometry, matGreen ), [ 0, - 0.5, 0 ], [ Math.PI, 0, 0 ]],
+				[ new Mesh( lineGeometry2, matGreen ) ]
+			],
+			Z: [
+				[ new Mesh( arrowGeometry, matBlue ), [ 0, 0, 0.5 ], [ Math.PI / 2, 0, 0 ]],
+				[ new Mesh( arrowGeometry, matBlue ), [ 0, 0, - 0.5 ], [ - Math.PI / 2, 0, 0 ]],
+				[ new Mesh( lineGeometry2, matBlue ), null, [ Math.PI / 2, 0, 0 ]]
+			],
+			XYZ: [
+				[ new Mesh( new OctahedronGeometry( 0.1, 0 ), matWhiteTransparent ), [ 0, 0, 0 ]]
+			],
+			XY: [
+				[ new Mesh( new BoxGeometry( 0.15, 0.15, 0.01 ), matBlueTransparent ), [ 0.15, 0.15, 0 ]]
+			],
+			YZ: [
+				[ new Mesh( new BoxGeometry( 0.15, 0.15, 0.01 ), matRedTransparent ), [ 0, 0.15, 0.15 ], [ 0, Math.PI / 2, 0 ]]
+			],
+			XZ: [
+				[ new Mesh( new BoxGeometry( 0.15, 0.15, 0.01 ), matGreenTransparent ), [ 0.15, 0, 0.15 ], [ - Math.PI / 2, 0, 0 ]]
+			]
+		};
+
+		const pickerTranslate = {
+			X: [
+				[ new Mesh( new CylinderGeometry( 0.2, 0, 0.6, 4 ), matInvisible ), [ 0.3, 0, 0 ], [ 0, 0, - Math.PI / 2 ]],
+				[ new Mesh( new CylinderGeometry( 0.2, 0, 0.6, 4 ), matInvisible ), [ - 0.3, 0, 0 ], [ 0, 0, Math.PI / 2 ]]
+			],
+			Y: [
+				[ new Mesh( new CylinderGeometry( 0.2, 0, 0.6, 4 ), matInvisible ), [ 0, 0.3, 0 ]],
+				[ new Mesh( new CylinderGeometry( 0.2, 0, 0.6, 4 ), matInvisible ), [ 0, - 0.3, 0 ], [ 0, 0, Math.PI ]]
+			],
+			Z: [
+				[ new Mesh( new CylinderGeometry( 0.2, 0, 0.6, 4 ), matInvisible ), [ 0, 0, 0.3 ], [ Math.PI / 2, 0, 0 ]],
+				[ new Mesh( new CylinderGeometry( 0.2, 0, 0.6, 4 ), matInvisible ), [ 0, 0, - 0.3 ], [ - Math.PI / 2, 0, 0 ]]
+			],
+			XYZ: [
+				[ new Mesh( new OctahedronGeometry( 0.2, 0 ), matInvisible ) ]
+			],
+			XY: [
+				[ new Mesh( new BoxGeometry( 0.2, 0.2, 0.01 ), matInvisible ), [ 0.15, 0.15, 0 ]]
+			],
+			YZ: [
+				[ new Mesh( new BoxGeometry( 0.2, 0.2, 0.01 ), matInvisible ), [ 0, 0.15, 0.15 ], [ 0, Math.PI / 2, 0 ]]
+			],
+			XZ: [
+				[ new Mesh( new BoxGeometry( 0.2, 0.2, 0.01 ), matInvisible ), [ 0.15, 0, 0.15 ], [ - Math.PI / 2, 0, 0 ]]
+			]
+		};
+
+		const helperTranslate = {
+			START: [
+				[ new Mesh( new OctahedronGeometry( 0.01, 2 ), matHelper ), null, null, null, 'helper' ]
+			],
+			END: [
+				[ new Mesh( new OctahedronGeometry( 0.01, 2 ), matHelper ), null, null, null, 'helper' ]
+			],
+			DELTA: [
+				[ new Line( TranslateHelperGeometry(), matHelper ), null, null, null, 'helper' ]
+			],
+			X: [
+				[ new Line( lineGeometry, matHelper ), [ - 1e3, 0, 0 ], null, [ 1e6, 1, 1 ], 'helper' ]
+			],
+			Y: [
+				[ new Line( lineGeometry, matHelper ), [ 0, - 1e3, 0 ], [ 0, 0, Math.PI / 2 ], [ 1e6, 1, 1 ], 'helper' ]
+			],
+			Z: [
+				[ new Line( lineGeometry, matHelper ), [ 0, 0, - 1e3 ], [ 0, - Math.PI / 2, 0 ], [ 1e6, 1, 1 ], 'helper' ]
+			]
+		};
+
+		const gizmoRotate = {
+			XYZE: [
+				[ new Mesh( CircleGeometry( 0.5, 1 ), matGray ), null, [ 0, Math.PI / 2, 0 ]]
+			],
+			X: [
+				[ new Mesh( CircleGeometry( 0.5, 0.5 ), matRed ) ]
+			],
+			Y: [
+				[ new Mesh( CircleGeometry( 0.5, 0.5 ), matGreen ), null, [ 0, 0, - Math.PI / 2 ]]
+			],
+			Z: [
+				[ new Mesh( CircleGeometry( 0.5, 0.5 ), matBlue ), null, [ 0, Math.PI / 2, 0 ]]
+			],
+			E: [
+				[ new Mesh( CircleGeometry( 0.75, 1 ), matYellowTransparent ), null, [ 0, Math.PI / 2, 0 ]]
+			]
+		};
+
+		const helperRotate = {
+			AXIS: [
+				[ new Line( lineGeometry, matHelper ), [ - 1e3, 0, 0 ], null, [ 1e6, 1, 1 ], 'helper' ]
+			]
+		};
+
+		const pickerRotate = {
+			XYZE: [
+				[ new Mesh( new SphereGeometry( 0.25, 10, 8 ), matInvisible ) ]
+			],
+			X: [
+				[ new Mesh( new TorusGeometry( 0.5, 0.1, 4, 24 ), matInvisible ), [ 0, 0, 0 ], [ 0, - Math.PI / 2, - Math.PI / 2 ]],
+			],
+			Y: [
+				[ new Mesh( new TorusGeometry( 0.5, 0.1, 4, 24 ), matInvisible ), [ 0, 0, 0 ], [ Math.PI / 2, 0, 0 ]],
+			],
+			Z: [
+				[ new Mesh( new TorusGeometry( 0.5, 0.1, 4, 24 ), matInvisible ), [ 0, 0, 0 ], [ 0, 0, - Math.PI / 2 ]],
+			],
+			E: [
+				[ new Mesh( new TorusGeometry( 0.75, 0.1, 2, 24 ), matInvisible ) ]
+			]
+		};
+
+		const gizmoScale = {
+			X: [
+				[ new Mesh( scaleHandleGeometry, matRed ), [ 0.5, 0, 0 ], [ 0, 0, - Math.PI / 2 ]],
+				[ new Mesh( lineGeometry2, matRed ), [ 0, 0, 0 ], [ 0, 0, - Math.PI / 2 ]],
+				[ new Mesh( scaleHandleGeometry, matRed ), [ - 0.5, 0, 0 ], [ 0, 0, Math.PI / 2 ]],
+			],
+			Y: [
+				[ new Mesh( scaleHandleGeometry, matGreen ), [ 0, 0.5, 0 ]],
+				[ new Mesh( lineGeometry2, matGreen ) ],
+				[ new Mesh( scaleHandleGeometry, matGreen ), [ 0, - 0.5, 0 ], [ 0, 0, Math.PI ]],
+			],
+			Z: [
+				[ new Mesh( scaleHandleGeometry, matBlue ), [ 0, 0, 0.5 ], [ Math.PI / 2, 0, 0 ]],
+				[ new Mesh( lineGeometry2, matBlue ), [ 0, 0, 0 ], [ Math.PI / 2, 0, 0 ]],
+				[ new Mesh( scaleHandleGeometry, matBlue ), [ 0, 0, - 0.5 ], [ - Math.PI / 2, 0, 0 ]]
+			],
+			XY: [
+				[ new Mesh( new BoxGeometry( 0.15, 0.15, 0.01 ), matBlueTransparent ), [ 0.15, 0.15, 0 ]]
+			],
+			YZ: [
+				[ new Mesh( new BoxGeometry( 0.15, 0.15, 0.01 ), matRedTransparent ), [ 0, 0.15, 0.15 ], [ 0, Math.PI / 2, 0 ]]
+			],
+			XZ: [
+				[ new Mesh( new BoxGeometry( 0.15, 0.15, 0.01 ), matGreenTransparent ), [ 0.15, 0, 0.15 ], [ - Math.PI / 2, 0, 0 ]]
+			],
+			XYZ: [
+				[ new Mesh( new BoxGeometry( 0.1, 0.1, 0.1 ), matWhiteTransparent ) ],
+			]
+		};
+
+		const pickerScale = {
+			X: [
+				[ new Mesh( new CylinderGeometry( 0.2, 0, 0.6, 4 ), matInvisible ), [ 0.3, 0, 0 ], [ 0, 0, - Math.PI / 2 ]],
+				[ new Mesh( new CylinderGeometry( 0.2, 0, 0.6, 4 ), matInvisible ), [ - 0.3, 0, 0 ], [ 0, 0, Math.PI / 2 ]]
+			],
+			Y: [
+				[ new Mesh( new CylinderGeometry( 0.2, 0, 0.6, 4 ), matInvisible ), [ 0, 0.3, 0 ]],
+				[ new Mesh( new CylinderGeometry( 0.2, 0, 0.6, 4 ), matInvisible ), [ 0, - 0.3, 0 ], [ 0, 0, Math.PI ]]
+			],
+			Z: [
+				[ new Mesh( new CylinderGeometry( 0.2, 0, 0.6, 4 ), matInvisible ), [ 0, 0, 0.3 ], [ Math.PI / 2, 0, 0 ]],
+				[ new Mesh( new CylinderGeometry( 0.2, 0, 0.6, 4 ), matInvisible ), [ 0, 0, - 0.3 ], [ - Math.PI / 2, 0, 0 ]]
+			],
+			XY: [
+				[ new Mesh( new BoxGeometry( 0.2, 0.2, 0.01 ), matInvisible ), [ 0.15, 0.15, 0 ]],
+			],
+			YZ: [
+				[ new Mesh( new BoxGeometry( 0.2, 0.2, 0.01 ), matInvisible ), [ 0, 0.15, 0.15 ], [ 0, Math.PI / 2, 0 ]],
+			],
+			XZ: [
+				[ new Mesh( new BoxGeometry( 0.2, 0.2, 0.01 ), matInvisible ), [ 0.15, 0, 0.15 ], [ - Math.PI / 2, 0, 0 ]],
+			],
+			XYZ: [
+				[ new Mesh( new BoxGeometry( 0.2, 0.2, 0.2 ), matInvisible ), [ 0, 0, 0 ]],
+			]
+		};
+
+		const helperScale = {
+			X: [
+				[ new Line( lineGeometry, matHelper ), [ - 1e3, 0, 0 ], null, [ 1e6, 1, 1 ], 'helper' ]
+			],
+			Y: [
+				[ new Line( lineGeometry, matHelper ), [ 0, - 1e3, 0 ], [ 0, 0, Math.PI / 2 ], [ 1e6, 1, 1 ], 'helper' ]
+			],
+			Z: [
+				[ new Line( lineGeometry, matHelper ), [ 0, 0, - 1e3 ], [ 0, - Math.PI / 2, 0 ], [ 1e6, 1, 1 ], 'helper' ]
+			]
+		};
+
+		// Creates an Object3D with gizmos described in custom hierarchy definition.
+
+		function setupGizmo( gizmoMap ) {
+
+			const gizmo = new Object3D();
+
+			for ( const name in gizmoMap ) {
+
+				for ( let i = gizmoMap[ name ].length; i --; ) {
+
+					const object = gizmoMap[ name ][ i ][ 0 ].clone();
+					const position = gizmoMap[ name ][ i ][ 1 ];
+					const rotation = gizmoMap[ name ][ i ][ 2 ];
+					const scale = gizmoMap[ name ][ i ][ 3 ];
+					const tag = gizmoMap[ name ][ i ][ 4 ];
+
+					// name and tag properties are essential for picking and updating logic.
+					object.name = name;
+					object.tag = tag;
+
+					if ( position ) {
+
+						object.position.set( position[ 0 ], position[ 1 ], position[ 2 ] );
+
+					}
+
+					if ( rotation ) {
+
+						object.rotation.set( rotation[ 0 ], rotation[ 1 ], rotation[ 2 ] );
+
+					}
+
+					if ( scale ) {
+
+						object.scale.set( scale[ 0 ], scale[ 1 ], scale[ 2 ] );
+
+					}
+
+					object.updateMatrix();
+
+					const tempGeometry = object.geometry.clone();
+					tempGeometry.applyMatrix4( object.matrix );
+					object.geometry = tempGeometry;
+					object.renderOrder = Infinity;
+
+					object.position.set( 0, 0, 0 );
+					object.rotation.set( 0, 0, 0 );
+					object.scale.set( 1, 1, 1 );
+
+					gizmo.add( object );
+
+				}
+
+			}
+
+			return gizmo;
+
+		}
+
+		// Gizmo creation
+
+		this.gizmo = {};
+		this.picker = {};
+		this.helper = {};
+
+		this.add( this.gizmo[ 'translate' ] = setupGizmo( gizmoTranslate ) );
+		this.add( this.gizmo[ 'rotate' ] = setupGizmo( gizmoRotate ) );
+		this.add( this.gizmo[ 'scale' ] = setupGizmo( gizmoScale ) );
+		this.add( this.picker[ 'translate' ] = setupGizmo( pickerTranslate ) );
+		this.add( this.picker[ 'rotate' ] = setupGizmo( pickerRotate ) );
+		this.add( this.picker[ 'scale' ] = setupGizmo( pickerScale ) );
+		this.add( this.helper[ 'translate' ] = setupGizmo( helperTranslate ) );
+		this.add( this.helper[ 'rotate' ] = setupGizmo( helperRotate ) );
+		this.add( this.helper[ 'scale' ] = setupGizmo( helperScale ) );
+
+		// Pickers should be hidden always
+
+		this.picker[ 'translate' ].visible = false;
+		this.picker[ 'rotate' ].visible = false;
+		this.picker[ 'scale' ].visible = false;
+
+	}
+
+	// updateMatrixWorld will update transformations and appearance of individual handles
+
+	updateMatrixWorld( force ) {
+
+		const space = ( this.mode === 'scale' ) ? 'local' : this.space; // scale always oriented to local rotation
+
+		const quaternion = ( space === 'local' ) ? this.worldQuaternion : _identityQuaternion;
+
+		// Show only gizmos for current transform mode
+
+		this.gizmo[ 'translate' ].visible = this.mode === 'translate';
+		this.gizmo[ 'rotate' ].visible = this.mode === 'rotate';
+		this.gizmo[ 'scale' ].visible = this.mode === 'scale';
+
+		this.helper[ 'translate' ].visible = this.mode === 'translate';
+		this.helper[ 'rotate' ].visible = this.mode === 'rotate';
+		this.helper[ 'scale' ].visible = this.mode === 'scale';
+
+
+		let handles = [];
+		handles = handles.concat( this.picker[ this.mode ].children );
+		handles = handles.concat( this.gizmo[ this.mode ].children );
+		handles = handles.concat( this.helper[ this.mode ].children );
+
+		for ( let i = 0; i < handles.length; i ++ ) {
+
+			const handle = handles[ i ];
+
+			// hide aligned to camera
+
+			handle.visible = true;
+			handle.rotation.set( 0, 0, 0 );
+			handle.position.copy( this.worldPosition );
+
+			let factor;
+
+			if ( this.camera.isOrthographicCamera ) {
+
+				factor = ( this.camera.top - this.camera.bottom ) / this.camera.zoom;
+
+			} else {
+
+				factor = this.worldPosition.distanceTo( this.cameraPosition ) * Math.min( 1.9 * Math.tan( Math.PI * this.camera.fov / 360 ) / this.camera.zoom, 7 );
+
+			}
+
+			handle.scale.set( 1, 1, 1 ).multiplyScalar( factor * this.size / 4 );
+
+			// TODO: simplify helpers and consider decoupling from gizmo
+
+			if ( handle.tag === 'helper' ) {
+
+				handle.visible = false;
+
+				if ( handle.name === 'AXIS' ) {
+
+					handle.visible = !! this.axis;
+
+					if ( this.axis === 'X' ) {
+
+						_tempQuaternion.setFromEuler( _tempEuler.set( 0, 0, 0 ) );
+						handle.quaternion.copy( quaternion ).multiply( _tempQuaternion );
+
+						if ( Math.abs( _alignVector.copy( _unitX ).applyQuaternion( quaternion ).dot( this.eye ) ) > 0.9 ) {
+
+							handle.visible = false;
+
+						}
+
+					}
+
+					if ( this.axis === 'Y' ) {
+
+						_tempQuaternion.setFromEuler( _tempEuler.set( 0, 0, Math.PI / 2 ) );
+						handle.quaternion.copy( quaternion ).multiply( _tempQuaternion );
+
+						if ( Math.abs( _alignVector.copy( _unitY ).applyQuaternion( quaternion ).dot( this.eye ) ) > 0.9 ) {
+
+							handle.visible = false;
+
+						}
+
+					}
+
+					if ( this.axis === 'Z' ) {
+
+						_tempQuaternion.setFromEuler( _tempEuler.set( 0, Math.PI / 2, 0 ) );
+						handle.quaternion.copy( quaternion ).multiply( _tempQuaternion );
+
+						if ( Math.abs( _alignVector.copy( _unitZ ).applyQuaternion( quaternion ).dot( this.eye ) ) > 0.9 ) {
+
+							handle.visible = false;
+
+						}
+
+					}
+
+					if ( this.axis === 'XYZE' ) {
+
+						_tempQuaternion.setFromEuler( _tempEuler.set( 0, Math.PI / 2, 0 ) );
+						_alignVector.copy( this.rotationAxis );
+						handle.quaternion.setFromRotationMatrix( _lookAtMatrix.lookAt( _zeroVector, _alignVector, _unitY ) );
+						handle.quaternion.multiply( _tempQuaternion );
+						handle.visible = this.dragging;
+
+					}
+
+					if ( this.axis === 'E' ) {
+
+						handle.visible = false;
+
+					}
+
+
+				} else if ( handle.name === 'START' ) {
+
+					handle.position.copy( this.worldPositionStart );
+					handle.visible = this.dragging;
+
+				} else if ( handle.name === 'END' ) {
+
+					handle.position.copy( this.worldPosition );
+					handle.visible = this.dragging;
+
+				} else if ( handle.name === 'DELTA' ) {
+
+					handle.position.copy( this.worldPositionStart );
+					handle.quaternion.copy( this.worldQuaternionStart );
+					_tempVector.set( 1e-10, 1e-10, 1e-10 ).add( this.worldPositionStart ).sub( this.worldPosition ).multiplyScalar( - 1 );
+					_tempVector.applyQuaternion( this.worldQuaternionStart.clone().invert() );
+					handle.scale.copy( _tempVector );
+					handle.visible = this.dragging;
+
+				} else {
+
+					handle.quaternion.copy( quaternion );
+
+					if ( this.dragging ) {
+
+						handle.position.copy( this.worldPositionStart );
+
+					} else {
+
+						handle.position.copy( this.worldPosition );
+
+					}
+
+					if ( this.axis ) {
+
+						handle.visible = this.axis.search( handle.name ) !== - 1;
+
+					}
+
+				}
+
+				// If updating helper, skip rest of the loop
+				continue;
+
+			}
+
+			// Align handles to current local or world rotation
+
+			handle.quaternion.copy( quaternion );
+
+			if ( this.mode === 'translate' || this.mode === 'scale' ) {
+
+				// Hide translate and scale axis facing the camera
+
+				const AXIS_HIDE_THRESHOLD = 0.99;
+				const PLANE_HIDE_THRESHOLD = 0.2;
+
+				if ( handle.name === 'X' ) {
+
+					if ( Math.abs( _alignVector.copy( _unitX ).applyQuaternion( quaternion ).dot( this.eye ) ) > AXIS_HIDE_THRESHOLD ) {
+
+						handle.scale.set( 1e-10, 1e-10, 1e-10 );
+						handle.visible = false;
+
+					}
+
+				}
+
+				if ( handle.name === 'Y' ) {
+
+					if ( Math.abs( _alignVector.copy( _unitY ).applyQuaternion( quaternion ).dot( this.eye ) ) > AXIS_HIDE_THRESHOLD ) {
+
+						handle.scale.set( 1e-10, 1e-10, 1e-10 );
+						handle.visible = false;
+
+					}
+
+				}
+
+				if ( handle.name === 'Z' ) {
+
+					if ( Math.abs( _alignVector.copy( _unitZ ).applyQuaternion( quaternion ).dot( this.eye ) ) > AXIS_HIDE_THRESHOLD ) {
+
+						handle.scale.set( 1e-10, 1e-10, 1e-10 );
+						handle.visible = false;
+
+					}
+
+				}
+
+				if ( handle.name === 'XY' ) {
+
+					if ( Math.abs( _alignVector.copy( _unitZ ).applyQuaternion( quaternion ).dot( this.eye ) ) < PLANE_HIDE_THRESHOLD ) {
+
+						handle.scale.set( 1e-10, 1e-10, 1e-10 );
+						handle.visible = false;
+
+					}
+
+				}
+
+				if ( handle.name === 'YZ' ) {
+
+					if ( Math.abs( _alignVector.copy( _unitX ).applyQuaternion( quaternion ).dot( this.eye ) ) < PLANE_HIDE_THRESHOLD ) {
+
+						handle.scale.set( 1e-10, 1e-10, 1e-10 );
+						handle.visible = false;
+
+					}
+
+				}
+
+				if ( handle.name === 'XZ' ) {
+
+					if ( Math.abs( _alignVector.copy( _unitY ).applyQuaternion( quaternion ).dot( this.eye ) ) < PLANE_HIDE_THRESHOLD ) {
+
+						handle.scale.set( 1e-10, 1e-10, 1e-10 );
+						handle.visible = false;
+
+					}
+
+				}
+
+			} else if ( this.mode === 'rotate' ) {
+
+				// Align handles to current local or world rotation
+
+				_tempQuaternion2.copy( quaternion );
+				_alignVector.copy( this.eye ).applyQuaternion( _tempQuaternion.copy( quaternion ).invert() );
+
+				if ( handle.name.search( 'E' ) !== - 1 ) {
+
+					handle.quaternion.setFromRotationMatrix( _lookAtMatrix.lookAt( this.eye, _zeroVector, _unitY ) );
+
+				}
+
+				if ( handle.name === 'X' ) {
+
+					_tempQuaternion.setFromAxisAngle( _unitX, Math.atan2( - _alignVector.y, _alignVector.z ) );
+					_tempQuaternion.multiplyQuaternions( _tempQuaternion2, _tempQuaternion );
+					handle.quaternion.copy( _tempQuaternion );
+
+				}
+
+				if ( handle.name === 'Y' ) {
+
+					_tempQuaternion.setFromAxisAngle( _unitY, Math.atan2( _alignVector.x, _alignVector.z ) );
+					_tempQuaternion.multiplyQuaternions( _tempQuaternion2, _tempQuaternion );
+					handle.quaternion.copy( _tempQuaternion );
+
+				}
+
+				if ( handle.name === 'Z' ) {
+
+					_tempQuaternion.setFromAxisAngle( _unitZ, Math.atan2( _alignVector.y, _alignVector.x ) );
+					_tempQuaternion.multiplyQuaternions( _tempQuaternion2, _tempQuaternion );
+					handle.quaternion.copy( _tempQuaternion );
+
+				}
+
+			}
+
+			// Hide disabled axes
+			handle.visible = handle.visible && ( handle.name.indexOf( 'X' ) === - 1 || this.showX );
+			handle.visible = handle.visible && ( handle.name.indexOf( 'Y' ) === - 1 || this.showY );
+			handle.visible = handle.visible && ( handle.name.indexOf( 'Z' ) === - 1 || this.showZ );
+			handle.visible = handle.visible && ( handle.name.indexOf( 'E' ) === - 1 || ( this.showX && this.showY && this.showZ ) );
+
+			// Hide disabled plane helpers
+			handle.visible = handle.visible && ( handle.name.indexOf( 'XY' ) === - 1 || this.showXY );
+			handle.visible = handle.visible && ( handle.name.indexOf( 'YZ' ) === - 1 || this.showYZ );
+			handle.visible = handle.visible && ( handle.name.indexOf( 'XZ' ) === - 1 || this.showXZ );
+
+			// Hide disabled rotation helpers
+			handle.visible = handle.visible && ( handle.name !== 'E' || this.showE );
+			handle.visible = handle.visible && ( handle.name !== 'XYZE' || this.showXYZE );
+
+			// highlight selected axis
+
+			handle.material._color = handle.material._color || handle.material.color.clone();
+			handle.material._opacity = handle.material._opacity || handle.material.opacity;
+
+			handle.material.color.copy( handle.material._color );
+			handle.material.opacity = handle.material._opacity;
+
+			if ( this.enabled && this.axis ) {
+
+				if ( handle.name === this.axis ) {
+
+					handle.material.color.copy( this.materialLib.active.color );
+					handle.material.opacity = 1.0;
+
+				} else if ( this.axis.split( '' ).some( function ( a ) {
+
+					return handle.name === a;
+
+				} ) ) {
+
+					handle.material.color.copy( this.materialLib.active.color );
+					handle.material.opacity = 1.0;
+
+				}
+
+			}
+
+		}
+
+		super.updateMatrixWorld( force );
+
+	}
+
+}
+
+//
+
+class TransformControlsPlane extends Mesh {
+
+	constructor() {
+
+		super(
+			new PlaneGeometry( 100000, 100000, 2, 2 ),
+			new MeshBasicMaterial( { visible: false, wireframe: true, side: DoubleSide, transparent: true, opacity: 0.1, toneMapped: false } )
+		);
+
+		this.isTransformControlsPlane = true;
+
+		this.type = 'TransformControlsPlane';
+
+	}
+
+	updateMatrixWorld( force ) {
+
+		let space = this.space;
+
+		this.position.copy( this.worldPosition );
+
+		if ( this.mode === 'scale' ) space = 'local'; // scale always oriented to local rotation
+
+		_v1.copy( _unitX ).applyQuaternion( space === 'local' ? this.worldQuaternion : _identityQuaternion );
+		_v2.copy( _unitY ).applyQuaternion( space === 'local' ? this.worldQuaternion : _identityQuaternion );
+		_v3.copy( _unitZ ).applyQuaternion( space === 'local' ? this.worldQuaternion : _identityQuaternion );
+
+		// Align the plane for current transform mode, axis and space.
+
+		_alignVector.copy( _v2 );
+
+		switch ( this.mode ) {
+
+			case 'translate':
+			case 'scale':
+				switch ( this.axis ) {
+
+					case 'X':
+						_alignVector.copy( this.eye ).cross( _v1 );
+						_dirVector.copy( _v1 ).cross( _alignVector );
+						break;
+					case 'Y':
+						_alignVector.copy( this.eye ).cross( _v2 );
+						_dirVector.copy( _v2 ).cross( _alignVector );
+						break;
+					case 'Z':
+						_alignVector.copy( this.eye ).cross( _v3 );
+						_dirVector.copy( _v3 ).cross( _alignVector );
+						break;
+					case 'XY':
+						_dirVector.copy( _v3 );
+						break;
+					case 'YZ':
+						_dirVector.copy( _v1 );
+						break;
+					case 'XZ':
+						_alignVector.copy( _v3 );
+						_dirVector.copy( _v2 );
+						break;
+					case 'XYZ':
+					case 'E':
+						_dirVector.set( 0, 0, 0 );
+						break;
+
+				}
+
+				break;
+			case 'rotate':
+			default:
+				// special case for rotate
+				_dirVector.set( 0, 0, 0 );
+
+		}
+
+		if ( _dirVector.length() === 0 ) {
+
+			// If in rotate mode, make the plane parallel to camera
+			this.quaternion.copy( this.cameraQuaternion );
+
+		} else {
+
+			_tempMatrix.lookAt( _tempVector.set( 0, 0, 0 ), _dirVector, _alignVector );
+
+			this.quaternion.setFromRotationMatrix( _tempMatrix );
+
+		}
+
+		super.updateMatrixWorld( force );
+
+	}
+
+}
+
+export { TransformControls, TransformControlsGizmo, TransformControlsPlane };