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misc_controls_trackball.html
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misc_controls_trackball.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>Verge3D webgl - trackball controls</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: #ccc;
color: #000;
}
a {
color: #f00;
}
</style>
</head>
<body>
<div id="info">
<a href="https://www.soft8soft.com/verge3d" target="_blank" rel="noopener">Verge3D</a> - trackball controls<br />
MOVE mouse & press LEFT/A: rotate, MIDDLE/S: zoom, RIGHT/D: pan
</div>
<!-- Import maps polyfill -->
<!-- Remove this when import maps will be widely supported -->
<script async src="https://unpkg.com/[email protected]/dist/es-module-shims.js"></script>
<script type="importmap">
{
"imports": {
"v3d": "../build/v3d.module.js",
"v3d/addons/": "./jsm/"
}
}
</script>
<script type="module">
import * as v3d from 'v3d';
import Stats from 'v3d/addons/libs/stats.module.js';
import { GUI } from 'v3d/addons/libs/lil-gui.module.min.js';
import { TrackballControls } from 'v3d/addons/controls/TrackballControls.js';
let perspectiveCamera, orthographicCamera, controls, scene, renderer, stats;
const params = {
orthographicCamera: false
};
const frustumSize = 400;
init();
animate();
function init() {
const aspect = window.innerWidth / window.innerHeight;
perspectiveCamera = new v3d.PerspectiveCamera(60, aspect, 1, 1000);
perspectiveCamera.position.z = 500;
orthographicCamera = new v3d.OrthographicCamera(frustumSize * aspect / -2, frustumSize * aspect / 2, frustumSize / 2, frustumSize / -2, 1, 1000);
orthographicCamera.position.z = 500;
// world
scene = new v3d.Scene();
scene.background = new v3d.Color(0xcccccc);
scene.fog = new v3d.FogExp2(0xcccccc, 0.002);
const geometry = new v3d.CylinderGeometry(0, 10, 30, 4, 1);
const material = new v3d.MeshPhongMaterial({ color: 0xffffff, flatShading: true });
for (let i = 0; i < 500; i++) {
const mesh = new v3d.Mesh(geometry, material);
mesh.position.x = (Math.random() -0.5) * 1000;
mesh.position.y = (Math.random() -0.5) * 1000;
mesh.position.z = (Math.random() -0.5) * 1000;
mesh.updateMatrix();
mesh.matrixAutoUpdate = false;
scene.add(mesh);
}
// lights
const dirLight1 = new v3d.DirectionalLight(0xffffff);
dirLight1.position.set(1, 1, 1);
scene.add(dirLight1);
const dirLight2 = new v3d.DirectionalLight(0x002288);
dirLight2.position.set(- 1, -1, -1);
scene.add(dirLight2);
const ambientLight = new v3d.AmbientLight(0x222222);
scene.add(ambientLight);
// renderer
renderer = new v3d.WebGLRenderer({ antialias: true });
renderer.setPixelRatio(window.devicePixelRatio);
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
stats = new Stats();
document.body.appendChild(stats.dom);
//
const gui = new GUI();
gui.add(params, 'orthographicCamera').name('use orthographic').onChange(function(value) {
controls.dispose();
createControls(value ? orthographicCamera : perspectiveCamera);
});
//
window.addEventListener('resize', onWindowResize);
createControls(perspectiveCamera);
}
function createControls(camera) {
controls = new TrackballControls(camera, renderer.domElement);
controls.rotateSpeed = 1.0;
controls.zoomSpeed = 1.2;
controls.panSpeed = 0.8;
controls.keys = ['KeyA', 'KeyS', 'KeyD'];
}
function onWindowResize() {
const aspect = window.innerWidth / window.innerHeight;
perspectiveCamera.aspect = aspect;
perspectiveCamera.updateProjectionMatrix();
orthographicCamera.left = -frustumSize * aspect / 2;
orthographicCamera.right = frustumSize * aspect / 2;
orthographicCamera.top = frustumSize / 2;
orthographicCamera.bottom = -frustumSize / 2;
orthographicCamera.updateProjectionMatrix();
renderer.setSize(window.innerWidth, window.innerHeight);
controls.handleResize();
}
function animate() {
requestAnimationFrame(animate);
controls.update();
stats.update();
render();
}
function render() {
const camera = (params.orthographicCamera) ? orthographicCamera : perspectiveCamera;
renderer.render(scene, camera);
}
</script>
</body>
</html>