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- <!DOCTYPE html>
- <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">
- <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" 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>
- </html>
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