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hands-pointer-drag.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webxr hands - point and drag</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
<link type="text/css" rel="stylesheet" href="main.css">
</head>
<body>
<div id="info">
<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webxr hands - point and drag<br />
(Oculus Browser with #webxr-hands flag enabled)
</div>
<script type="module">
import * as THREE from './libs/three.module.js';
import { VRButton } from './jsm/webxr/VRButton.js';
import { XRControllerModelFactory } from './jsm/webxr/XRControllerModelFactory.js';
import { OculusHandModel } from './js/OculusHandModel.js';
import { OculusHandPointerModel } from './js/OculusHandPointerModel.js';
import { createText } from './js/Text2D.js';
import { GameObject, Component, GameObjectManager } from './js/EntityComponentSystem.js';
import { PointerButtonComponent } from './js/PointerButtonComponent.js';
import { PointerDragComponent } from './js/PointerDragComponent.js';
let container;
let camera, scene, renderer;
let hand1, hand2;
let handModel1, handModel2;
let handPointer1, handPointer2;
let menuObject, floor, cubesGroup, instructionText, exitText;
let resetButton, exitButton;
let controller1, controller2;
let controllerGrip1, controllerGrip2;
let xrSession;
let gameObjectManager;
let positionCalibrated = false;
let intersectable = [];
init();
animate();
function makeButtonMesh(x, y, z, color) {
const geometry = new THREE.BoxGeometry(x, y, z);
const material = new THREE.MeshPhongMaterial({ color: color });
const buttonMesh = new THREE.Mesh(geometry, material);
return buttonMesh;
}
function init() {
container = document.createElement('div');
document.body.appendChild(container);
scene = new THREE.Scene();
scene.background = new THREE.Color(0x444444);
camera = new THREE.PerspectiveCamera(50, window.innerWidth / window.innerHeight, 0.1, 10);
camera.position.set(0, 1.2, 0.3);
const floorGeometry = new THREE.PlaneGeometry(4, 4);
const floorMaterial = new THREE.MeshPhongMaterial({ color: 0x222222 });
floor = new THREE.Mesh(floorGeometry, floorMaterial);
floor.rotation.x = - Math.PI / 2;
// floor.receiveShadow = true;
scene.add(floor);
scene.add(new THREE.HemisphereLight(0x808080, 0x606060));
const light = new THREE.DirectionalLight(0xffffff);
light.position.set(0, 6, 0);
light.castShadow = true;
light.shadow.camera.top = 2;
light.shadow.camera.bottom = - 2;
light.shadow.camera.right = 2;
light.shadow.camera.left = - 2;
light.shadow.mapSize.set(4096, 4096);
scene.add(light);
renderer = new THREE.WebGLRenderer({ antialias: true });
renderer.setPixelRatio(window.devicePixelRatio);
renderer.setSize(window.innerWidth, window.innerHeight);
renderer.outputEncoding = THREE.sRGBEncoding;
renderer.shadowMap.enabled = true;
renderer.xr.enabled = true;
container.appendChild(renderer.domElement);
document.body.appendChild(VRButton.createButton(renderer));
// controllers
controller1 = renderer.xr.getController(0);
scene.add(controller1);
controller2 = renderer.xr.getController(1);
scene.add(controller2);
const controllerModelFactory = new XRControllerModelFactory();
// Hand 1
controllerGrip1 = renderer.xr.getControllerGrip(0);
controllerGrip1.add(controllerModelFactory.createControllerModel(controllerGrip1));
scene.add(controllerGrip1);
hand1 = renderer.xr.getHand(0);
handModel1 = new OculusHandModel(hand1);
hand1.add(handModel1);
handPointer1 = new OculusHandPointerModel(hand1, controller1);
hand1.add(handPointer1);
scene.add(hand1);
// Hand 2
controllerGrip2 = renderer.xr.getControllerGrip(1);
controllerGrip2.add(controllerModelFactory.createControllerModel(controllerGrip2));
scene.add(controllerGrip2);
hand2 = renderer.xr.getHand(1);
handModel2 = new OculusHandModel(hand2);
hand2.add(handModel2);
handPointer2 = new OculusHandPointerModel(hand2, controller2);
hand2.add(handPointer2);
scene.add(hand2);
gameObjectManager = new GameObjectManager();
cubesGroup = new THREE.Group();
scene.add(cubesGroup);
// buttons
menuObject = new THREE.Object3D();
menuObject.position.set(0.4, 1, -1);
menuObject.rotation.y = - Math.PI / 12;
scene.add(menuObject);
let resetButtonObject = gameObjectManager.createGameObject(menuObject, "exit-button");
resetButton = makeButtonMesh(0.2, 0.1, 0.01, 0x355c7d);
let resetText = createText("reset", 0.06);
resetButton.add(resetText);
resetText.position.set(0, 0, 0.0051);
resetButtonObject.transform.add(resetButton);
resetButtonObject.transform.position.set(0, -0.06, 0);
resetButtonObject.addComponent(PointerButtonComponent, [handPointer1, handPointer2], resetCubes);
let exitButtonObject = gameObjectManager.createGameObject(menuObject, "exit-button");
exitButton = makeButtonMesh(0.2, 0.1, 0.01, 0xff0000);
let exitText = createText("exit", 0.06);
exitButton.add(exitText);
exitText.position.set(0, 0, 0.0051);
exitButtonObject.transform.add(exitButton);
exitButtonObject.transform.position.set(0, -0.18, 0);
let exitButtonAction = function () {
exitText.visible = true;
setTimeout(function () { exitText.visible = false; renderer.xr.getSession().end(); }, 2000);
}
exitButtonObject.addComponent(PointerButtonComponent, [handPointer1, handPointer2], exitButtonAction);
resetCubes();
instructionText = createText("This is a WebXR Hands demo, please explore with hands.", 0.04);
instructionText.position.set(0, 1.6, -0.6);
scene.add(instructionText);
exitText = createText("Exiting session...", 0.04);
exitText.position.set(0, 1.5, -0.6);
exitText.visible = false;
scene.add(exitText);
window.addEventListener('resize', onWindowResize);
}
function resetCubes() {
const geometry = new THREE.BoxGeometry(0.15, 0.15, 0.15);
gameObjectManager.gameObjects.forEach((gameObject) => {
if (gameObject.name.startsWith("cube-")) {
gameObjectManager.removeGameObject(gameObject);
}
});
intersectable = [floor, resetButton, exitButton];
for (let i = 0; i < 20; i++) {
const object = new THREE.Mesh(geometry, new THREE.MeshLambertMaterial({ color: Math.random() * 0xffffff }));
let cubeObject = gameObjectManager.createGameObject(cubesGroup, "cube-" + i);
intersectable.push(object);
cubeObject.transform.add(object);
cubeObject.transform.position.x = Math.random() * 2 - 1;
cubeObject.transform.position.y = Math.random() * 2;
cubeObject.transform.position.z = Math.random() * 2 - 1;
cubeObject.transform.rotation.x = Math.random() * 2 * Math.PI;
cubeObject.transform.rotation.y = Math.random() * 2 * Math.PI;
cubeObject.transform.rotation.z = Math.random() * 2 * Math.PI;
object.scale.x = Math.random() + 0.5;
object.scale.y = Math.random() + 0.5;
object.scale.z = Math.random() + 0.5;
cubeObject.addComponent(PointerDragComponent, [handPointer1, handPointer2], menuObject);
}
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize(window.innerWidth, window.innerHeight);
}
//
function animate() {
renderer.setAnimationLoop(render);
}
function render() {
gameObjectManager.update();
instructionText.visible = controllerGrip1.visible || controllerGrip2.visible;
handPointer1.checkIntersections(intersectable);
handPointer2.checkIntersections(intersectable);
renderer.render(scene, camera);
// adjusting console position when user first go immersive
if (renderer.xr.getSession() && !positionCalibrated) {
let xrCamera = renderer.xr.getCamera(camera);
menuObject.position.x = xrCamera.position.x + 0.4;
menuObject.position.y = xrCamera.position.y;
menuObject.position.z = xrCamera.position.z - 1;
positionCalibrated = true;
}
}
</script>
</body>
</html>