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<!doctype html> <!DOCTYPE html>
<html lang="de"> <html lang="de">
<head> <head>
<meta charset="UTF-8"> <meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>GeoVis AR Projekt</title> <title>3D Modell Umschalter - Sonnenblume und Roboter</title>
<style> <style>
body { body {
margin: 0; margin: 0;
font-family: Arial, sans-serif; overflow: hidden;
background-color: #f0f0f0; background-color: #e0e0e0;
color: #333; }
display: flex; canvas {
justify-content: center; display: block;
align-items: center; }
height: 100vh; </style>
background-image: url('https://www.hft-stuttgart.de/fileadmin/Dateien/Hochschule/-_R_Juergen_Pollak_HFT_18.04.18-0091.jpg');
background-size: cover;
background-position: center;
}
.container {
text-align: center;
background-color: rgba(0, 0, 0, 0.5);
padding: 50px;
border-radius: 10px;
color: white;
max-width: 80%;
box-shadow: 0px 0px 15px rgba(0, 0, 0, 0.5);
}
h1 {
font-size: 3em;
margin-bottom: 20px;
}
p {
font-size: 1.2em;
margin-bottom: 30px;
}
button {
background-color: #4CAF50;
color: white;
font-size: 1.5em;
padding: 15px 30px;
border: none;
border-radius: 5px;
cursor: pointer;
transition: background-color 0.3s;
margin: 10px;
}
button:hover {
background-color: #45a049;
}
button:active {
background-color: #387a39;
}
</style>
<script src="https://unpkg.com/three@0.126.0/build/three.js"></script>
<script src="https://unpkg.com/three@0.126.0/examples/js/loaders/GLTFLoader.js"></script>
</head> </head>
<body> <body>
<script> <script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r128/three.min.js"></script>
let selectedModel = 'car'; // Standardauswahl <script src="https://threejs.org/examples/js/controls/OrbitControls.js"></script>
let models = {}; <script src="https://threejs.org/examples/js/loaders/GLTFLoader.js"></script>
let reticle; <script src="https://threejs.org/examples/js/webxr/VRButton.js"></script>
<script src="https://cdn.jsdelivr.net/npm/three-mesh-ui@1.5.0/dist/three-mesh-ui.js"></script>
async function activateXR() {
const canvas = document.createElement('canvas'); <script>
document.body.appendChild(canvas); import * as THREE from 'https://cdnjs.cloudflare.com/ajax/libs/three.js/r128/three.module.js';
const gl = canvas.getContext('webgl', { xrCompatible: true }); import { VRButton } from 'https://threejs.org/examples/jsm/webxr/VRButton.js';
const renderer = new THREE.WebGLRenderer({ alpha: true, canvas, context: gl }); import { OrbitControls } from 'https://threejs.org/examples/jsm/controls/OrbitControls.js';
renderer.autoClear = false; import { GLTFLoader } from 'https://threejs.org/examples/jsm/loaders/GLTFLoader.js';
import ThreeMeshUI from 'https://cdn.jsdelivr.net/npm/three-mesh-ui@1.5.0/dist/three-mesh-ui.js';
const scene = new THREE.Scene();
const camera = new THREE.PerspectiveCamera(); let scene, camera, renderer, controls;
camera.matrixAutoUpdate = false; let sunflowerModel, robotModel;
let currentModel = 'sunflower'; // Default is sunflower
// Licht hinzufügen
const light = new THREE.DirectionalLight(0xffffff, 1); window.addEventListener('load', init);
light.position.set(10, 10, 10); window.addEventListener('resize', onWindowResize);
scene.add(light);
const objsToTest = [];
// Reticle (Cursor) const raycaster = new THREE.Raycaster();
const loader = new THREE.GLTFLoader(); const mouse = new THREE.Vector2();
loader.load("https://immersive-web.github.io/webxr-samples/media/gltf/reticle/reticle.gltf", (gltf) => { let selectState = false;
reticle = gltf.scene;
reticle.visible = false; window.addEventListener('pointermove', (event) => {
scene.add(reticle); mouse.x = (event.clientX / window.innerWidth) * 2 - 1;
}); mouse.y = -(event.clientY / window.innerHeight) * 2 + 1;
});
// Modelle laden
loader.load("https://threejs.org/examples/models/gltf/RobotExpressive/RobotExpressive.glb", (gltf) => { window.addEventListener('pointerdown', () => {
models.car = gltf.scene; selectState = true;
}); });
loader.load("https://immersive-web.github.io/webxr-samples/media/gltf/sunflower/sunflower.gltf", (gltf) => {
models.lamp = gltf.scene; window.addEventListener('pointerup', () => {
}); selectState = false;
});
// AR-Session starten
const session = await navigator.xr.requestSession('immersive-ar', { requiredFeatures: ['hit-test'] }); window.addEventListener('touchstart', (event) => {
session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) }); selectState = true;
const referenceSpace = await session.requestReferenceSpace('local'); mouse.x = (event.touches[0].clientX / window.innerWidth) * 2 - 1;
const viewerSpace = await session.requestReferenceSpace('viewer'); mouse.y = -(event.touches[0].clientY / window.innerHeight) * 2 + 1;
const hitTestSource = await session.requestHitTestSource({ space: viewerSpace }); });
session.requestAnimationFrame(onXRFrame); window.addEventListener('touchend', () => {
selectState = false;
session.addEventListener("select", (event) => { mouse.x = null;
if (!reticle) return; mouse.y = null;
});
// Kein Button getroffen -> Modell platzieren
if (models[selectedModel]) { function init() {
const clone = models[selectedModel].clone(); scene = new THREE.Scene();
clone.position.copy(reticle.position); scene.background = new THREE.Color(0x505050);
clone.scale.set(0.5, 0.5, 0.5); // Größe anpassen
scene.add(clone); camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
console.log(`${selectedModel} platziert`);
renderer = new THREE.WebGLRenderer({ antialias: true });
renderer.setPixelRatio(window.devicePixelRatio);
renderer.setSize(window.innerWidth, window.innerHeight);
renderer.outputEncoding = THREE.sRGBEncoding;
renderer.xr.enabled = true;
document.body.appendChild(VRButton.createButton(renderer));
document.body.appendChild(renderer.domElement);
controls = new OrbitControls(camera, renderer.domElement);
camera.position.set(0, 1.6, 0);
controls.target = new THREE.Vector3(0, 1, -1.8);
const room = new THREE.LineSegments(
new THREE.BoxGeometry(6, 6, 6, 10, 10, 10).translate(0, 3, 0),
new THREE.LineBasicMaterial({ color: 0x808080 })
);
const roomMesh = new THREE.Mesh(
new THREE.BoxGeometry(6, 6, 6, 10, 10, 10).translate(0, 3, 0),
new THREE.MeshBasicMaterial({ side: THREE.BackSide })
);
scene.add(room);
objsToTest.push(roomMesh);
const light = new THREE.DirectionalLight(0xffffff, 1);
light.position.set(5, 5, 5).normalize();
scene.add(light);
const hemLight = new THREE.HemisphereLight(0x808080, 0x606060);
scene.add(hemLight);
// Models
const loader = new GLTFLoader();
loader.load('https://example.com/sunflower.gltf', (gltf) => {
sunflowerModel = gltf.scene;
sunflowerModel.scale.set(0.5, 0.5, 0.5);
sunflowerModel.position.set(0, 0, -2);
scene.add(sunflowerModel);
});
loader.load('https://example.com/robot.gltf', (gltf) => {
robotModel = gltf.scene;
robotModel.scale.set(0.5, 0.5, 0.5);
robotModel.position.set(0, 0, -2);
scene.add(robotModel);
});
// UI Panel
makePanel();
// Start animation loop
renderer.setAnimationLoop(loop);
} }
});
function makePanel() {
// AR-Rendering const container = new ThreeMeshUI.Block({
function onXRFrame(time, frame) { justifyContent: 'center',
session.requestAnimationFrame(onXRFrame); contentDirection: 'row-reverse',
gl.bindFramebuffer(gl.FRAMEBUFFER, session.renderState.baseLayer.framebuffer); fontFamily: './Roboto-msdf.json',
fontTexture: './Roboto-msdf.png',
const pose = frame.getViewerPose(referenceSpace); fontSize: 0.07,
if (pose) { padding: 0.02,
const view = pose.views[0]; borderRadius: 0.11
const viewport = session.renderState.baseLayer.getViewport(view); });
renderer.setSize(viewport.width, viewport.height);
container.position.set(0, 0.6, -1.2);
camera.matrix.fromArray(view.transform.matrix); container.rotation.x = -0.55;
camera.projectionMatrix.fromArray(view.projectionMatrix); scene.add(container);
camera.updateMatrixWorld(true);
const buttonOptions = {
const hitTestResults = frame.getHitTestResults(hitTestSource); width: 0.4,
if (hitTestResults.length > 0) { height: 0.15,
const hitPose = hitTestResults[0].getPose(referenceSpace); justifyContent: 'center',
reticle.visible = true; offset: 0.05,
reticle.position.set(hitPose.transform.position.x, hitPose.transform.position.y, hitPose.transform.position.z); margin: 0.02,
reticle.updateMatrixWorld(true); borderRadius: 0.075
} };
renderer.render(scene, camera); const hoveredStateAttributes = {
state: 'hovered',
attributes: {
offset: 0.035,
backgroundColor: new THREE.Color(0x999999),
backgroundOpacity: 1,
fontColor: new THREE.Color(0xffffff)
}
};
const idleStateAttributes = {
state: 'idle',
attributes: {
offset: 0.035,
backgroundColor: new THREE.Color(0x666666),
backgroundOpacity: 0.3,
fontColor: new THREE.Color(0xffffff)
}
};
const buttonSunflower = new ThreeMeshUI.Block(buttonOptions);
const buttonRobot = new ThreeMeshUI.Block(buttonOptions);
buttonSunflower.add(new ThreeMeshUI.Text({ content: 'Sonnenblume' }));
buttonRobot.add(new ThreeMeshUI.Text({ content: 'Roboter' }));
const selectedAttributes = {
offset: 0.02,
backgroundColor: new THREE.Color(0x777777),
fontColor: new THREE.Color(0x222222)
};
buttonSunflower.setupState({
state: 'selected',
attributes: selectedAttributes,
onSet: () => {
currentModel = 'sunflower';
showModel();
}
});
buttonSunflower.setupState(hoveredStateAttributes);
buttonSunflower.setupState(idleStateAttributes);
buttonRobot.setupState({
state: 'selected',
attributes: selectedAttributes,
onSet: () => {
currentModel = 'robot';
showModel();
}
});
buttonRobot.setupState(hoveredStateAttributes);
buttonRobot.setupState(idleStateAttributes);
container.add(buttonSunflower, buttonRobot);
objsToTest.push(buttonSunflower, buttonRobot);
}
function showModel() {
if (sunflowerModel) sunflowerModel.visible = currentModel === 'sunflower';
if (robotModel) robotModel.visible = currentModel === 'robot';
} }
}
} function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
// AR starten camera.updateProjectionMatrix();
if (navigator.xr) { renderer.setSize(window.innerWidth, window.innerHeight);
const startButton = document.createElement('button'); }
startButton.textContent = 'Start AR';
startButton.style.cssText = "position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); padding: 15px; font-size: 18px;"; function loop() {
document.body.appendChild(startButton); ThreeMeshUI.update();
startButton.onclick = () => { controls.update();
startButton.remove(); renderer.render(scene, camera);
activateXR(); updateButtons();
}; }
} else {
alert('WebXR wird nicht unterstützt.'); function updateButtons() {
} let intersect;
</script>
if (mouse.x !== null && mouse.y !== null) {
raycaster.setFromCamera(mouse, camera);
intersect = raycast();
}
if (intersect && intersect.object.isUI) {
if (selectState) {
intersect.object.setState('selected');
} else {
intersect.object.setState('hovered');
}
}
objsToTest.forEach((obj) => {
if ((!intersect || obj !== intersect.object) && obj.isUI) {
obj.setState('idle');
}
});
}
function raycast() {
return objsToTest.reduce((closestIntersection, obj) => {
const intersection = raycaster.intersectObject(obj, true);
if (!intersection[0]) return closestIntersection;
if (!closestIntersection || intersection[0].distance < closestIntersection.distance) {
intersection[0].object = obj;
return intersection[0];
}
return closestIntersection;
}, null);
}
</script>
</body> </body>
</html> </html>
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