CSS3DRenderer, CSS3DObject, OrthographicCamera API 结合使用案例

CSS3DRenderer, CSS3DObject, OrthographicCamera API 结合使用案例


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<html><head><title>three.js css3d - orthographic</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"><style>body {background-color: #f0f0f0;}a {color: #f00;}#info {color: #000000;}</style></head><body><div id="info"><a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> css3d - orthographic</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 { CSS3DRenderer, CSS3DObject } from 'three/addons/renderers/CSS3DRenderer.js';import { GUI } from 'three/addons/libs/lil-gui.module.min.js';let camera, scene, renderer;let scene2, renderer2;const frustumSize = 500;init();animate();function init() {const aspect = window.innerWidth / window.innerHeight;camera = new THREE.OrthographicCamera( frustumSize * aspect / - 2, frustumSize * aspect / 2, frustumSize / 2, frustumSize / - 2, 1, 1000 );camera.position.set( - 200, 200, 200 );scene = new THREE.Scene();scene.background = new THREE.Color( 0xf0f0f0 );scene2 = new THREE.Scene();const material = new THREE.MeshBasicMaterial( { color: 0x000000, wireframe: true, wireframeLinewidth: 1, side: THREE.DoubleSide } );// leftcreatePlane(100, 100,'chocolate',new THREE.Vector3( - 50, 0, 0 ),new THREE.Euler( 0, - 90 * THREE.MathUtils.DEG2RAD, 0 ));// rightcreatePlane(100, 100,'saddlebrown',new THREE.Vector3( 0, 0, 50 ),new THREE.Euler( 0, 0, 0 ));// topcreatePlane(100, 100,'yellowgreen',new THREE.Vector3( 0, 50, 0 ),new THREE.Euler( - 90 * THREE.MathUtils.DEG2RAD, 0, 0 ));// bottomcreatePlane(300, 300,'seagreen',new THREE.Vector3( 0, - 50, 0 ),new THREE.Euler( - 90 * THREE.MathUtils.DEG2RAD, 0, 0 ));//renderer = new THREE.WebGLRenderer();renderer.setPixelRatio( window.devicePixelRatio );renderer.setSize( window.innerWidth, window.innerHeight );document.body.appendChild( renderer.domElement );renderer2 = new CSS3DRenderer();renderer2.setSize( window.innerWidth, window.innerHeight );renderer2.domElement.style.position = 'absolute';renderer2.domElement.style.top = 0;document.body.appendChild( renderer2.domElement );const controls = new OrbitControls( camera, renderer2.domElement );controls.minZoom = 0.5;controls.maxZoom = 2;function createPlane( width, height, cssColor, pos, rot ) {const element = document.createElement( 'div' );element.style.width = width + 'px';element.style.height = height + 'px';element.style.opacity = 0.75;element.style.background = cssColor;const object = new CSS3DObject( element );object.position.copy( pos );object.rotation.copy( rot );scene2.add( object );const geometry = new THREE.PlaneGeometry( width, height );const mesh = new THREE.Mesh( geometry, material );mesh.position.copy( object.position );mesh.rotation.copy( object.rotation );scene.add( mesh );}window.addEventListener( 'resize', onWindowResize );createPanel();}function onWindowResize() {const aspect = window.innerWidth / window.innerHeight;camera.left = - frustumSize * aspect / 2;camera.right = frustumSize * aspect / 2;camera.top = frustumSize / 2;camera.bottom = - frustumSize / 2;camera.updateProjectionMatrix();renderer.setSize( window.innerWidth, window.innerHeight );renderer2.setSize( window.innerWidth, window.innerHeight );}function animate() {requestAnimationFrame( animate );renderer.render( scene, camera );renderer2.render( scene2, camera );}function createPanel() {const panel = new GUI();const folder1 = panel.addFolder( 'camera setViewOffset' ).close();const settings = {'setViewOffset'() {folder1.children[ 1 ].enable().setValue( window.innerWidth );folder1.children[ 2 ].enable().setValue( window.innerHeight );folder1.children[ 3 ].enable().setValue( 0 );folder1.children[ 4 ].enable().setValue( 0 );folder1.children[ 5 ].enable().setValue( window.innerWidth );folder1.children[ 6 ].enable().setValue( window.innerHeight );},'fullWidth': 0,'fullHeight': 0,'offsetX': 0,'offsetY': 0,'width': 0,'height': 0,'clearViewOffset'() {folder1.children[ 1 ].setValue( 0 ).disable();folder1.children[ 2 ].setValue( 0 ).disable();folder1.children[ 3 ].setValue( 0 ).disable();folder1.children[ 4 ].setValue( 0 ).disable();folder1.children[ 5 ].setValue( 0 ).disable();folder1.children[ 6 ].setValue( 0 ).disable();camera.clearViewOffset();}};folder1.add( settings, 'setViewOffset' );folder1.add( settings, 'fullWidth', window.screen.width / 4, window.screen.width * 2, 1 ).onChange( ( val ) => updateCameraViewOffset( { fullWidth: val } ) ).disable();folder1.add( settings, 'fullHeight', window.screen.height / 4, window.screen.height * 2, 1 ).onChange( ( val ) => updateCameraViewOffset( { fullHeight: val } ) ).disable();folder1.add( settings, 'offsetX', 0, 256, 1 ).onChange( ( val ) => updateCameraViewOffset( { x: val } ) ).disable();folder1.add( settings, 'offsetY', 0, 256, 1 ).onChange( ( val ) => updateCameraViewOffset( { y: val } ) ).disable();folder1.add( settings, 'width', window.screen.width / 4, window.screen.width * 2, 1 ).onChange( ( val ) => updateCameraViewOffset( { width: val } ) ).disable();folder1.add( settings, 'height', window.screen.height / 4, window.screen.height * 2, 1 ).onChange( ( val ) => updateCameraViewOffset( { height: val } ) ).disable();folder1.add( settings, 'clearViewOffset' );}function updateCameraViewOffset( { fullWidth, fullHeight, x, y, width, height } ) {if ( ! camera.view ) {camera.setViewOffset( fullWidth || window.innerWidth, fullHeight || window.innerHeight, x || 0, y || 0, width || window.innerWidth, height || window.innerHeight );} else {camera.setViewOffset( fullWidth || camera.view.fullWidth, fullHeight || camera.view.fullHeight, x || camera.view.offsetX, y || camera.view.offsetY, width || camera.view.width, height || camera.view.height );}}</script></body>
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