<html lang="en">

<head>

<title>three.js webgl - transform controls</title>

<meta charset="utf-8">

<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">

<meta property="og:title" content="three.js webgl - transform controls">

<meta property="og:type" content="website">

<meta property="og:url" content="https://threejs.org/examples/misc_controls_transform.html">

<meta property="og:image" content="https://threejs.org/examples/screenshots/misc_controls_transform.jpg">

<link type="text/css" rel="stylesheet" href="main.css">

</head>

<body>

<div id="info">

"W" translate | "E" rotate | "R" scale | "+/-" adjust size<br />

"Q" toggle world/local space | "Shift" hold to snap to grid<br />

"X" toggle X | "Y" toggle Y | "Z" toggle Z | "Spacebar" toggle enabled<br />

"Esc" reset current transform<br />

"C" toggle camera | "V" random zoom

</div>

<script type="importmap">

{

"imports": {

"three": "../build/three.module.js",

"three/addons/": "./jsm/"

}

}

</script>

<script type="module">

import * as THREE from 'three';

import { OrbitControls } from 'three/addons/controls/OrbitControls.js';

import { TransformControls } from 'three/addons/controls/TransformControls.js';

let cameraPersp, cameraOrtho, currentCamera;

let scene, renderer, control, orbit;

init();

render();

function init() {

renderer = new THREE.WebGLRenderer( { antialias: true } );

renderer.setPixelRatio( window.devicePixelRatio );

renderer.setSize( window.innerWidth, window.innerHeight );

document.body.appendChild( renderer.domElement );

const aspect = window.innerWidth / window.innerHeight;

const frustumSize = 5;

cameraPersp = new THREE.PerspectiveCamera( 50, aspect, 0.1, 100 );

cameraOrtho = new THREE.OrthographicCamera( - frustumSize * aspect, frustumSize * aspect, frustumSize, - frustumSize, 0.1, 100 );

currentCamera = cameraPersp;

currentCamera.position.set( 5, 2.5, 5 );

scene = new THREE.Scene();

scene.add( new THREE.GridHelper( 5, 10, 0x888888, 0x444444 ) );

const ambientLight = new THREE.AmbientLight( 0xffffff );

scene.add( ambientLight );

const light = new THREE.DirectionalLight( 0xffffff, 4 );

light.position.set( 1, 1, 1 );

scene.add( light );

const texture = new THREE.TextureLoader().load( 'textures/crate.gif', render );

texture.colorSpace = THREE.SRGBColorSpace;

texture.anisotropy = renderer.capabilities.getMaxAnisotropy();

const geometry = new THREE.BoxGeometry();

const material = new THREE.MeshLambertMaterial( { map: texture } );

orbit = new OrbitControls( currentCamera, renderer.domElement );

orbit.update();

orbit.addEventListener( 'change', render );

control = new TransformControls( currentCamera, renderer.domElement );

control.addEventListener( 'change', render );

control.addEventListener( 'dragging-changed', function ( event ) {

orbit.enabled = ! event.value;

} );

const mesh = new THREE.Mesh( geometry, material );

scene.add( mesh );

control.attach( mesh );

const gizmo = control.getHelper();

scene.add( gizmo );

window.addEventListener( 'resize', onWindowResize );

window.addEventListener( 'keydown', function ( event ) {

switch ( event.key ) {

case 'q':

control.setSpace( control.space === 'local' ? 'world' : 'local' );

break;

case 'Shift':

control.setTranslationSnap( 1 );

control.setRotationSnap( THREE.MathUtils.degToRad( 15 ) );

control.setScaleSnap( 0.25 );

break;

case 'w':

control.setMode( 'translate' );

break;

case 'e':

control.setMode( 'rotate' );

break;

case 'r':

control.setMode( 'scale' );

break;

case 'c':

const position = currentCamera.position.clone();

currentCamera = currentCamera.isPerspectiveCamera ? cameraOrtho : cameraPersp;

currentCamera.position.copy( position );

orbit.object = currentCamera;

control.camera = currentCamera;

currentCamera.lookAt( orbit.target.x, orbit.target.y, orbit.target.z );

onWindowResize();

break;

case 'v':

const randomFoV = Math.random() + 0.1;

const randomZoom = Math.random() + 0.1;

cameraPersp.fov = randomFoV * 160;

cameraOrtho.bottom = - randomFoV * 500;

cameraOrtho.top = randomFoV * 500;

cameraPersp.zoom = randomZoom * 5;

cameraOrtho.zoom = randomZoom * 5;

onWindowResize();

break;

case '+':

case '=':

control.setSize( control.size + 0.1 );

break;

case '-':

case '_':

control.setSize( Math.max( control.size - 0.1, 0.1 ) );

break;

case 'x':

control.showX = ! control.showX;

break;

case 'y':

control.showY = ! control.showY;

break;

case 'z':

control.showZ = ! control.showZ;

break;

case ' ':

control.enabled = ! control.enabled;

break;

case 'Escape':

control.reset();

break;

}

} );

window.addEventListener( 'keyup', function ( event ) {

switch ( event.key ) {

case 'Shift':

control.setTranslationSnap( null );

control.setRotationSnap( null );

control.setScaleSnap( null );

break;

}

} );

}

function onWindowResize() {

const aspect = window.innerWidth / window.innerHeight;

cameraPersp.aspect = aspect;

cameraPersp.updateProjectionMatrix();

cameraOrtho.left = cameraOrtho.bottom * aspect;

cameraOrtho.right = cameraOrtho.top * aspect;

cameraOrtho.updateProjectionMatrix();

renderer.setSize( window.innerWidth, window.innerHeight );

render();

}

function render() {

renderer.render( scene, currentCamera );

}

</script>

</body>