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Percen authoredbdf93ff9
<!doctype html><html lang="de"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>GeoVis AR Projekt</title> <style> body { margin: 0; font-family: Arial, sans-serif; background-color: #f0f0f0; color: #333; display: flex; justify-content: center; align-items: center; height: 100vh; 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); }//teste 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; } .menu-bar { position: fixed; top: 0; left: 0; right: 0; display: flex; justify-content: center; background-color: rgba(0, 0, 0, 0.7); padding: 10px;
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z-index: 10;
}
.menu-bar button {
background-color: #2196F3;
}
.menu-bar button:hover {
background-color: #1E88E5;
}
</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>
<body>
<script>
let selectedModel = 'car'; // Standardauswahl
let models = {};
let reticle;
let menu;
async function activateXR() {
const canvas = document.createElement('canvas');
document.body.appendChild(canvas);
const gl = canvas.getContext('webgl', { xrCompatible: true });
const renderer = new THREE.WebGLRenderer({ alpha: true, canvas, context: gl });
renderer.autoClear = false;
const scene = new THREE.Scene();
const camera = new THREE.PerspectiveCamera();
camera.matrixAutoUpdate = false;
// Licht hinzufügen
const light = new THREE.DirectionalLight(0xffffff, 1);
light.position.set(10, 10, 10);
scene.add(light);
// Reticle (Cursor)
const loader = new THREE.GLTFLoader();
loader.load("https://immersive-web.github.io/webxr-samples/media/gltf/reticle/reticle.gltf", (gltf) => {
reticle = gltf.scene;
reticle.visible = false;
scene.add(reticle);
});
const container = new ThreeMeshUI.Block({
width: 1.2,
height: 0.7,
padding: 0.2,
fontFamily: './assets/Roboto-msdf.json',
fontTexture: './assets/Roboto-msdf.png',
});
//
const text = new ThreeMeshUI.Text({
content: "Some text to be displayed"
});
container.add( text );
// scene is a THREE.Scene (see three.js)
scene.add( container );
// This is typically done in the render loop :
ThreeMeshUI.update();
// Modelle laden
loader.load("https://threejs.org/examples/models/gltf/RobotExpressive/RobotExpressive.glb", (gltf) => {
models.car = gltf.scene;
});
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loader.load("https://immersive-web.github.io/webxr-samples/media/gltf/sunflower/sunflower.gltf", (gltf) => {
models.lamp = gltf.scene;
});
// 3D-Menü erstellen
const menuGeometry = new THREE.PlaneGeometry(0.5, 0.2); // Menügröße
const menuMaterial = new THREE.MeshBasicMaterial({ color: 0x333333, opacity: 0.8, transparent: true });
menu = new THREE.Mesh(menuGeometry, menuMaterial);
menu.position.set(0, -0.5, -1); // Unten im Kamerasichtfeld
scene.add(menu);
// Menü-Buttons als Flächen
const buttonGeometry = new THREE.PlaneGeometry(0.15, 0.1);
const buttonMaterial1 = new THREE.MeshBasicMaterial({ color: 0x2196F3 });
const buttonMaterial2 = new THREE.MeshBasicMaterial({ color: 0xFF9800 });
const carButton = new THREE.Mesh(buttonGeometry, buttonMaterial1);
carButton.position.set(-0.2, -0.5, -0.99); // Links unten
scene.add(carButton);
const lampButton = new THREE.Mesh(buttonGeometry, buttonMaterial2);
lampButton.position.set(0.2, -0.5, -0.99); // Rechts unten
scene.add(lampButton);
// Raycaster für Button-Interaktion
const raycaster = new THREE.Raycaster();
const pointer = new THREE.Vector2();
// AR-Session starten
const session = await navigator.xr.requestSession('immersive-ar', { requiredFeatures: ['hit-test'] });
session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) });
const referenceSpace = await session.requestReferenceSpace('local');
const viewerSpace = await session.requestReferenceSpace('viewer');
const hitTestSource = await session.requestHitTestSource({ space: viewerSpace });
session.requestAnimationFrame(onXRFrame);
session.addEventListener("select", (event) => {
if (!reticle) return;
// Raycaster von der Kameraposition (Mitte des Bildschirms)
raycaster.setFromCamera(pointer, camera);
const intersects = raycaster.intersectObjects([carButton, lampButton]);
// Prüfen, ob ein Button getroffen wurde
if (intersects.length > 0) {
const clickedButton = intersects[0].object;
if (clickedButton === carButton) {
selectedModel = 'car';
console.log('Auto ausgewählt');
} else if (clickedButton === lampButton) {
selectedModel = 'lamp';
console.log('Laterne ausgewählt');
}
}
// Kein Button getroffen -> Modell platzieren
else if (models[selectedModel]) {
const clone = models[selectedModel].clone();
clone.position.copy(reticle.position);
clone.scale.set(0.5, 0.5, 0.5); // Größe anpassen
scene.add(clone);
console.log(`${selectedModel} platziert`);
}
});
// AR-Rendering
function onXRFrame(time, frame) {
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session.requestAnimationFrame(onXRFrame);
gl.bindFramebuffer(gl.FRAMEBUFFER, session.renderState.baseLayer.framebuffer);
const pose = frame.getViewerPose(referenceSpace);
if (pose) {
const view = pose.views[0];
const viewport = session.renderState.baseLayer.getViewport(view);
renderer.setSize(viewport.width, viewport.height);
camera.matrix.fromArray(view.transform.matrix);
camera.projectionMatrix.fromArray(view.projectionMatrix);
camera.updateMatrixWorld(true);
// Menü bleibt fixiert vor der Kamera
menu.position.set(0, -0.5, -1);
menu.lookAt(camera.position);
carButton.position.set(-0.2, -0.5, -0.99);
lampButton.position.set(0.2, -0.5, -0.99);
const hitTestResults = frame.getHitTestResults(hitTestSource);
if (hitTestResults.length > 0) {
const hitPose = hitTestResults[0].getPose(referenceSpace);
reticle.visible = true;
reticle.position.set(hitPose.transform.position.x, hitPose.transform.position.y, hitPose.transform.position.z);
reticle.updateMatrixWorld(true);
}
renderer.render(scene, camera);
}
}
}
// AR starten
if (navigator.xr) {
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;";
document.body.appendChild(startButton);
startButton.onclick = () => {
startButton.remove();
activateXR();
};
} else {
alert('WebXR wird nicht unterstützt.');
}
</script>
</body>
</html>