You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
150 lines
3.5 KiB
HTML
150 lines
3.5 KiB
HTML
2 months ago
|
<!-- 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>
|