diff --git a/public/index.html b/public/index.html
index feb479d76e80ccc2db2a676d3d1b08217d70fbea..f32aeabd8843f5b7d534e007a6caf25cbd0580a5 100644
--- a/public/index.html
+++ b/public/index.html
@@ -1,168 +1,268 @@
-<!doctype html>
+<!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);
-    }
-
-    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>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>3D Modell Umschalter - Sonnenblume und Roboter</title>
+    <style>
+        body {
+            margin: 0;
+            overflow: hidden;
+            background-color: #e0e0e0;
+        }
+        canvas {
+            display: block;
+        }
+    </style>
 </head>
+
 <body>
-  <script>
-    let selectedModel = 'car'; // Standardauswahl
-    let models = {};
-    let reticle;
-
-    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);
-      });
-
-      // Modelle laden
-      loader.load("https://threejs.org/examples/models/gltf/RobotExpressive/RobotExpressive.glb", (gltf) => {
-        models.car = gltf.scene;
-      });
-      loader.load("https://immersive-web.github.io/webxr-samples/media/gltf/sunflower/sunflower.gltf", (gltf) => {
-        models.lamp = gltf.scene;
-      });
-
-      // 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;
-
-        // Kein Button getroffen -> Modell platzieren
-        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`);
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r128/three.min.js"></script>
+    <script src="https://threejs.org/examples/js/controls/OrbitControls.js"></script>
+    <script src="https://threejs.org/examples/js/loaders/GLTFLoader.js"></script>
+    <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>
+
+    <script>
+        import * as THREE from 'https://cdnjs.cloudflare.com/ajax/libs/three.js/r128/three.module.js';
+        import { VRButton } from 'https://threejs.org/examples/jsm/webxr/VRButton.js';
+        import { OrbitControls } from 'https://threejs.org/examples/jsm/controls/OrbitControls.js';
+        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';
+
+        let scene, camera, renderer, controls;
+        let sunflowerModel, robotModel;
+        let currentModel = 'sunflower'; // Default is sunflower
+
+        window.addEventListener('load', init);
+        window.addEventListener('resize', onWindowResize);
+
+        const objsToTest = [];
+        const raycaster = new THREE.Raycaster();
+        const mouse = new THREE.Vector2();
+        let selectState = false;
+
+        window.addEventListener('pointermove', (event) => {
+            mouse.x = (event.clientX / window.innerWidth) * 2 - 1;
+            mouse.y = -(event.clientY / window.innerHeight) * 2 + 1;
+        });
+
+        window.addEventListener('pointerdown', () => {
+            selectState = true;
+        });
+
+        window.addEventListener('pointerup', () => {
+            selectState = false;
+        });
+
+        window.addEventListener('touchstart', (event) => {
+            selectState = true;
+            mouse.x = (event.touches[0].clientX / window.innerWidth) * 2 - 1;
+            mouse.y = -(event.touches[0].clientY / window.innerHeight) * 2 + 1;
+        });
+
+        window.addEventListener('touchend', () => {
+            selectState = false;
+            mouse.x = null;
+            mouse.y = null;
+        });
+
+        function init() {
+            scene = new THREE.Scene();
+            scene.background = new THREE.Color(0x505050);
+
+            camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
+
+            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);
         }
-      });
-
-      // AR-Rendering
-      function onXRFrame(time, frame) {
-        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);
-
-          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);
+
+        function makePanel() {
+            const container = new ThreeMeshUI.Block({
+                justifyContent: 'center',
+                contentDirection: 'row-reverse',
+                fontFamily: './Roboto-msdf.json',
+                fontTexture: './Roboto-msdf.png',
+                fontSize: 0.07,
+                padding: 0.02,
+                borderRadius: 0.11
+            });
+
+            container.position.set(0, 0.6, -1.2);
+            container.rotation.x = -0.55;
+            scene.add(container);
+
+            const buttonOptions = {
+                width: 0.4,
+                height: 0.15,
+                justifyContent: 'center',
+                offset: 0.05,
+                margin: 0.02,
+                borderRadius: 0.075
+            };
+
+            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';
         }
-      }
-    }
-
-    // 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>
+
+        function onWindowResize() {
+            camera.aspect = window.innerWidth / window.innerHeight;
+            camera.updateProjectionMatrix();
+            renderer.setSize(window.innerWidth, window.innerHeight);
+        }
+
+        function loop() {
+            ThreeMeshUI.update();
+            controls.update();
+            renderer.render(scene, camera);
+            updateButtons();
+        }
+
+        function updateButtons() {
+            let intersect;
+
+            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>
+
 </html>
