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misc_controls_drag.html
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misc_controls_drag.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>Verge3D webgl - drag 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: #f0f0f0;
color: #444;
}
a {
color: #08f;
}
</style>
</head>
<body>
<div id="info">
<a href="https://www.soft8soft.com/verge3d" target="_blank" rel="noopener">Verge3D</a> webgl - drag controls<br />
Use "Shift+Click" to add/remove objects to/from a group.<br />
Grouped objects can be transformed as a union.
</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 { DragControls } from 'v3d/addons/controls/DragControls.js';
let container;
let camera, scene, renderer;
let controls, group;
let enableSelection = false;
const objects = [];
const mouse = new v3d.Vector2(), raycaster = new v3d.Raycaster();
init();
function init() {
container = document.createElement('div');
document.body.appendChild(container);
camera = new v3d.PerspectiveCamera(70, window.innerWidth / window.innerHeight, 1, 5000);
camera.position.z = 1000;
scene = new v3d.Scene();
scene.background = new v3d.Color(0xf0f0f0);
scene.add(new v3d.AmbientLight(0x505050));
const light = new v3d.SpotLight(0xffffff, 1.5);
light.position.set(0, 500, 2000);
light.angle = Math.PI / 9;
light.castShadow = true;
light.shadow.camera.near = 1000;
light.shadow.camera.far = 4000;
light.shadow.mapSize.width = 1024;
light.shadow.mapSize.height = 1024;
scene.add(light);
group = new v3d.Group();
scene.add(group);
const geometry = new v3d.BoxGeometry(40, 40, 40);
for (let i = 0; i < 200; i++) {
const object = new v3d.Mesh(geometry, new v3d.MeshLambertMaterial({ color: Math.random() * 0xffffff }));
object.position.x = Math.random() * 1000 - 500;
object.position.y = Math.random() * 600 - 300;
object.position.z = Math.random() * 800 - 400;
object.rotation.x = Math.random() * 2 * Math.PI;
object.rotation.y = Math.random() * 2 * Math.PI;
object.rotation.z = Math.random() * 2 * Math.PI;
object.scale.x = Math.random() * 2 + 1;
object.scale.y = Math.random() * 2 + 1;
object.scale.z = Math.random() * 2 + 1;
object.castShadow = true;
object.receiveShadow = true;
scene.add(object);
objects.push(object);
}
renderer = new v3d.WebGLRenderer({ antialias: true });
renderer.setPixelRatio(window.devicePixelRatio);
renderer.setSize(window.innerWidth, window.innerHeight);
renderer.shadowMap.enabled = true;
renderer.shadowMap.type = v3d.PCFShadowMap;
container.appendChild(renderer.domElement);
controls = new DragControls([... objects], camera, renderer.domElement);
controls.addEventListener('drag', render);
//
window.addEventListener('resize', onWindowResize);
document.addEventListener('click', onClick);
window.addEventListener('keydown', onKeyDown);
window.addEventListener('keyup', onKeyUp);
render();
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize(window.innerWidth, window.innerHeight);
render();
}
function onKeyDown(event) {
enableSelection = (event.keyCode === 16) ? true : false;
}
function onKeyUp() {
enableSelection = false;
}
function onClick(event) {
event.preventDefault();
if (enableSelection === true) {
const draggableObjects = controls.getObjects();
draggableObjects.length = 0;
mouse.x = (event.clientX / window.innerWidth) * 2 - 1;
mouse.y = - (event.clientY / window.innerHeight) * 2 + 1;
raycaster.setFromCamera(mouse, camera);
const intersections = raycaster.intersectObjects(objects, true);
if (intersections.length > 0) {
const object = intersections[0].object;
if (group.children.includes(object) === true) {
object.material.emissive.set(0x000000);
scene.attach(object);
} else {
object.material.emissive.set(0xaaaaaa);
group.attach(object);
}
controls.transformGroup = true;
draggableObjects.push(group);
}
if (group.children.length === 0) {
controls.transformGroup = false;
draggableObjects.push(...objects);
}
}
render();
}
function render() {
renderer.render(scene, camera);
}
</script>
</body>
</html>