You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
135 lines
3.6 KiB
135 lines
3.6 KiB
<!-- 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 -->
|
|
<!-- Import maps polyfill -->
|
|
<!-- Remove this when import maps will be widely supported -->
|
|
<script async src="https://unpkg.com/es-module-shims@1.3.6/dist/es-module-shims.js"></script>
|
|
|
|
<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({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, 1);
|
|
light.position.set(-1, 2, 4);
|
|
scene.add(light);
|
|
}
|
|
{
|
|
const light = new THREE.DirectionalLight(0xffffff, 1);
|
|
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>
|
|
|
|
|
|
|