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226 lines
5.5 KiB
HTML
226 lines
5.5 KiB
HTML
2 months ago
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgl - transform controls</title>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
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<link type="text/css" rel="stylesheet" href="main.css">
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</head>
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<body>
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<div id="info">
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"W" translate | "E" rotate | "R" scale | "+/-" adjust size<br />
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"Q" toggle world/local space | "Shift" snap to grid<br />
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"X" toggle X | "Y" toggle Y | "Z" toggle Z | "Spacebar" toggle enabled<br />
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"Esc" reset current transform<br />
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"C" toggle camera | "V" random zoom
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</div>
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<script type="importmap">
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{
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"imports": {
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"three": "../build/three.module.js",
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"three/addons/": "./jsm/"
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}
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}
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</script>
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<script type="module">
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import * as THREE from 'three';
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import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
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import { TransformControls } from 'three/addons/controls/TransformControls.js';
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let cameraPersp, cameraOrtho, currentCamera;
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let scene, renderer, control, orbit;
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init();
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render();
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function init() {
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renderer = new THREE.WebGLRenderer( { antialias: true } );
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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document.body.appendChild( renderer.domElement );
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const aspect = window.innerWidth / window.innerHeight;
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const frustumSize = 5;
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cameraPersp = new THREE.PerspectiveCamera( 50, aspect, 0.1, 100 );
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cameraOrtho = new THREE.OrthographicCamera( - frustumSize * aspect, frustumSize * aspect, frustumSize, - frustumSize, 0.1, 100 );
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currentCamera = cameraPersp;
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currentCamera.position.set( 5, 2.5, 5 );
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scene = new THREE.Scene();
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scene.add( new THREE.GridHelper( 5, 10, 0x888888, 0x444444 ) );
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const ambientLight = new THREE.AmbientLight( 0xffffff );
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scene.add( ambientLight );
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const light = new THREE.DirectionalLight( 0xffffff, 4 );
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light.position.set( 1, 1, 1 );
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scene.add( light );
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const texture = new THREE.TextureLoader().load( 'textures/crate.gif', render );
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texture.colorSpace = THREE.SRGBColorSpace;
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texture.anisotropy = renderer.capabilities.getMaxAnisotropy();
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const geometry = new THREE.BoxGeometry();
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const material = new THREE.MeshLambertMaterial( { map: texture } );
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orbit = new OrbitControls( currentCamera, renderer.domElement );
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orbit.update();
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orbit.addEventListener( 'change', render );
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control = new TransformControls( currentCamera, renderer.domElement );
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control.addEventListener( 'change', render );
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control.addEventListener( 'dragging-changed', function ( event ) {
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orbit.enabled = ! event.value;
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} );
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const mesh = new THREE.Mesh( geometry, material );
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scene.add( mesh );
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control.attach( mesh );
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const gizmo = control.getHelper();
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scene.add( gizmo );
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window.addEventListener( 'resize', onWindowResize );
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window.addEventListener( 'keydown', function ( event ) {
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switch ( event.key ) {
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case 'q':
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control.setSpace( control.space === 'local' ? 'world' : 'local' );
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break;
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case 'Shift':
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control.setTranslationSnap( 1 );
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control.setRotationSnap( THREE.MathUtils.degToRad( 15 ) );
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control.setScaleSnap( 0.25 );
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break;
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case 'w':
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control.setMode( 'translate' );
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break;
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case 'e':
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control.setMode( 'rotate' );
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break;
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case 'r':
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control.setMode( 'scale' );
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break;
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case 'c':
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const position = currentCamera.position.clone();
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currentCamera = currentCamera.isPerspectiveCamera ? cameraOrtho : cameraPersp;
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currentCamera.position.copy( position );
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orbit.object = currentCamera;
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control.camera = currentCamera;
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currentCamera.lookAt( orbit.target.x, orbit.target.y, orbit.target.z );
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onWindowResize();
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break;
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case 'v':
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const randomFoV = Math.random() + 0.1;
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const randomZoom = Math.random() + 0.1;
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cameraPersp.fov = randomFoV * 160;
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cameraOrtho.bottom = - randomFoV * 500;
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cameraOrtho.top = randomFoV * 500;
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cameraPersp.zoom = randomZoom * 5;
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cameraOrtho.zoom = randomZoom * 5;
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onWindowResize();
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break;
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case '+':
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case '=':
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control.setSize( control.size + 0.1 );
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break;
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case '-':
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case '_':
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control.setSize( Math.max( control.size - 0.1, 0.1 ) );
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break;
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case 'x':
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control.showX = ! control.showX;
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break;
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case 'y':
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control.showY = ! control.showY;
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break;
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case 'z':
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control.showZ = ! control.showZ;
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break;
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case ' ':
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control.enabled = ! control.enabled;
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break;
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case 'Escape':
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control.reset();
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break;
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}
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} );
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window.addEventListener( 'keyup', function ( event ) {
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switch ( event.key ) {
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case 'Shift':
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control.setTranslationSnap( null );
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control.setRotationSnap( null );
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control.setScaleSnap( null );
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break;
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}
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} );
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}
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function onWindowResize() {
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const aspect = window.innerWidth / window.innerHeight;
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cameraPersp.aspect = aspect;
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cameraPersp.updateProjectionMatrix();
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cameraOrtho.left = cameraOrtho.bottom * aspect;
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cameraOrtho.right = cameraOrtho.top * aspect;
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cameraOrtho.updateProjectionMatrix();
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renderer.setSize( window.innerWidth, window.innerHeight );
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render();
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}
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function render() {
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renderer.render( scene, currentCamera );
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}
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</script>
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</body>
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</html>
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