123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149 |
- <!-- Licensed under a BSD license. See license.html for license -->
- <!DOCTYPE html>
- <html>
- <head>
- <meta charset="utf-8">
- <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
- <title>Three.js - Scenegraph - Car</title>
- <style>
- html, body {
- height: 100%;
- margin: 0;
- }
- #c {
- width: 100%;
- height: 100%;
- display: block;
- }
- </style>
- </head>
- <body>
- <canvas id="c"></canvas>
- </body>
- <script src="resources/threejs-lessons-helper.js"></script> <!-- you can and should delete this script. it is only used on the site to help with errors -->
- <script type="importmap">
- {
- "imports": {
- "three": "../../build/three.module.js"
- }
- }
- </script>
- <script type="module">
- import * as THREE from 'three';
- function main() {
- const canvas = document.querySelector( '#c' );
- const renderer = new THREE.WebGLRenderer( { antialias: true, canvas } );
- renderer.setClearColor( 0xAAAAAA );
- const fov = 40;
- const aspect = 2; // the canvas default
- const near = 0.1;
- const far = 1000;
- const camera = new THREE.PerspectiveCamera( fov, aspect, near, far );
- camera.position.set( 8, 4, 10 );
- camera.lookAt( 0, 0, 0 );
- const scene = new THREE.Scene();
- {
- const light = new THREE.DirectionalLight( 0xffffff, 3 );
- light.position.set( - 1, 2, 4 );
- scene.add( light );
- }
- {
- const light = new THREE.DirectionalLight( 0xffffff, 3 );
- light.position.set( 1, - 2, - 4 );
- scene.add( light );
- }
- const carWidth = 4;
- const carHeight = 1;
- const carLength = 8;
- const bodyGeometry = new THREE.BoxGeometry( carWidth, carHeight, carLength );
- const bodyMaterial = new THREE.MeshPhongMaterial( { color: 0x6688AA } );
- const bodyMesh = new THREE.Mesh( bodyGeometry, bodyMaterial );
- scene.add( bodyMesh );
- const wheelRadius = 1;
- const wheelThickness = .5;
- const wheelSegments = 6;
- const wheelGeometry = new THREE.CylinderGeometry(
- wheelRadius, // top radius
- wheelRadius, // bottom radius
- wheelThickness, // height of cylinder
- wheelSegments );
- const wheelMaterial = new THREE.MeshPhongMaterial( { color: 0x888888 } );
- const wheelPositions = [
- [ - carWidth / 2 + wheelThickness / 2, - carHeight / 2, carLength / 3 ],
- [ carWidth / 2 + wheelThickness / 2, - carHeight / 2, carLength / 3 ],
- [ - carWidth / 2 + wheelThickness / 2, - carHeight / 2, - carLength / 3 ],
- [ carWidth / 2 + wheelThickness / 2, - carHeight / 2, - carLength / 3 ],
- ];
- const wheelMeshes = wheelPositions.map( ( position ) => {
- const mesh = new THREE.Mesh( wheelGeometry, wheelMaterial );
- mesh.position.set( ...position );
- mesh.rotation.z = Math.PI * .5;
- scene.add( mesh );
- return mesh;
- } );
- function resizeRendererToDisplaySize( renderer ) {
- const canvas = renderer.domElement;
- const width = canvas.clientWidth;
- const height = canvas.clientHeight;
- const needResize = canvas.width !== width || canvas.height !== height;
- if ( needResize ) {
- renderer.setSize( width, height, false );
- }
- return needResize;
- }
- // const carPosition = [0, 0, 0];
- function render( time ) {
- time *= 0.001;
- if ( resizeRendererToDisplaySize( renderer ) ) {
- const canvas = renderer.domElement;
- camera.aspect = canvas.clientWidth / canvas.clientHeight;
- camera.updateProjectionMatrix();
- }
- wheelMeshes.forEach( ( obj ) => {
- obj.rotation.x = time;
- } );
- renderer.render( scene, camera );
- requestAnimationFrame( render );
- }
- requestAnimationFrame( render );
- }
- main();
- </script>
- </html>
|