From c72b45dcc909251756f23e6bff8f80e50361d840 Mon Sep 17 00:00:00 2001
From: Acosta Vega <32acmo1mpg@hft-stuttgart.de>
Date: Wed, 19 Jun 2024 15:23:01 +0000
Subject: [PATCH] Update index.html

---
 public/index.html | 185 +++++++++++++++++++---------------------------
 1 file changed, 75 insertions(+), 110 deletions(-)
diff --git a/public/index.html b/public/index.html
index b8be792..7bbde27 100644
--- a/public/index.html
+++ b/public/index.html
@@ -4,128 +4,93 @@
   <meta charset="UTF-8">
   <meta name="viewport"
         content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
-  <title>Hit to Place Demo</title>
 
-  <!-- three.js -->
-  <script src="https://unpkg.com/three@0.126.0/build/three.js"></script>
+<title>Pyramid Demo</title>
 
-  <script src="https://unpkg.com/three@0.126.0/examples/js/loaders/GLTFLoader.js"></script>
-</head>
-<body>
+<!-- three.js -->
 
 <!-- Starting an immersive WebXR session requires user interaction.
-    We start this one with a simple button. -->
-<button onclick="activateXR()">Start Hit to Place Demo</button>
-<script>
+We start this one with a simple button. -->
+<button>Start Pyramid Demo</button>
+
 async function activateXR() {
   // Add a canvas element and initialize a WebGL context that is compatible with WebXR.
   const canvas = document.createElement("canvas");
   document.body.appendChild(canvas);
   const gl = canvas.getContext("webgl", {xrCompatible: true});
-
+  
   const scene = new THREE.Scene();
-
-  const directionalLight = new THREE.DirectionalLight(0xffffff, 1.0);
-  directionalLight.position.set(10, 15, 10);
-  scene.add(directionalLight);
-
-// Set up the WebGLRenderer, which handles rendering to the session's base layer.
-const renderer = new THREE.WebGLRenderer({
-  alpha: true,
-  preserveDrawingBuffer: true,
-  canvas: canvas,
-  context: gl
-});
-renderer.autoClear = false;
-
-// The API directly updates the camera matrices.
-// Disable matrix auto updates so three.js doesn't attempt
-// to handle the matrices independently.
-const camera = new THREE.PerspectiveCamera();
-camera.matrixAutoUpdate = false;
-
-// Initialize a WebXR session using "immersive-ar".
-const session = await navigator.xr.requestSession("immersive-ar", {requiredFeatures: ['hit-test']});
-session.updateRenderState({
-  baseLayer: new XRWebGLLayer(session, gl)
-});
-
-// A 'local' reference space has a native origin that is located
-// near the viewer's position at the time the session was created.
-const referenceSpace = await session.requestReferenceSpace('local');
-
-// Create another XRReferenceSpace that has the viewer as the origin.
-const viewerSpace = await session.requestReferenceSpace('viewer');
-// Perform hit testing using the viewer as origin.
-const hitTestSource = await session.requestHitTestSource({ space: viewerSpace });
-
-
-
-
-const loader = new THREE.GLTFLoader();
-let reticle;
-loader.load("https://immersive-web.github.io/webxr-samples/media/gltf/reticle/reticle.gltf", function(gltf) {
-  reticle = gltf.scene;
-  reticle.visible = false;
-  scene.add(reticle);
-})
-
-let flower;
-loader.load("https://immersive-web.github.io/webxr-samples/media/gltf/sunflower/sunflower.gltf", function(gltf) {
-  flower = gltf.scene;
-});
-
-session.addEventListener("select", (event) => {
-  if (flower) {
-    const clone = flower.clone();
-    clone.position.copy(reticle.position);
-    scene.add(clone);
-  }
-});
-
-// Create a render loop that allows us to draw on the AR view.
-const onXRFrame = (time, frame) => {
-  // Queue up the next draw request.
-  session.requestAnimationFrame(onXRFrame);
-
-  // Bind the graphics framebuffer to the baseLayer's framebuffer
-  gl.bindFramebuffer(gl.FRAMEBUFFER, session.renderState.baseLayer.framebuffer)
-
-  // Retrieve the pose of the device.
-  // XRFrame.getViewerPose can return null while the session attempts to establish tracking.
-  const pose = frame.getViewerPose(referenceSpace);
-  if (pose) {
-    // In mobile AR, we only have one view.
-    const view = pose.views[0];
-
-    const viewport = session.renderState.baseLayer.getViewport(view);
-    renderer.setSize(viewport.width, viewport.height)
-
-    // Use the view's transform matrix and projection matrix to configure the THREE.camera.
-    camera.matrix.fromArray(view.transform.matrix)
-    camera.projectionMatrix.fromArray(view.projectionMatrix);
-    camera.updateMatrixWorld(true);
-
-    const hitTestResults = frame.getHitTestResults(hitTestSource);
-    if (hitTestResults.length > 0 && reticle) {
-      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);
-    }
-
+  
+  // The pyramid will have a different color on each side.
+  const materials = [
+    new THREE.MeshBasicMaterial({color: 0xff0000}),
+    new THREE.MeshBasicMaterial({color: 0x0000ff}),
+    new THREE.MeshBasicMaterial({color: 0x00ff00}),
+    new THREE.MeshBasicMaterial({color: 0xff00ff}),
+    new THREE.MeshBasicMaterial({color: 0x00ffff}),
+    new THREE.MeshBasicMaterial({color: 0xffff00})
+  ];
+  
+  // Create the pyramid and add it to the demo scene.
+  const pyramid = new THREE.Mesh(new THREE.ConeBufferGeometry(0.5, 1, 4), materials);
+  pyramid.position.set(0, 0, -1);
+  scene.add(pyramid);
+  
+  // Set up the WebGLRenderer, which handles rendering to the session's base layer.
+  const renderer = new THREE.WebGLRenderer({
+    alpha: true,
+    preserveDrawingBuffer: true,
+    canvas: canvas,
+    context: gl
+  });
+  renderer.autoClear = false;
+  
+  // The API directly updates the camera matrices.
+  // Disable matrix auto updates so three.js doesn't attempt
+  // to handle the matrices independently.
+  const camera = new THREE.PerspectiveCamera();
+  camera.matrixAutoUpdate = false;
+  
+  // Initialize a WebXR session using "immersive-ar".
+  const session = await navigator.xr.requestSession("immersive-ar");
+  session.updateRenderState({
+    baseLayer: new XRWebGLLayer(session, gl)
+  });
+  
+  // A 'local' reference space has a native origin that is located
+  // near the viewer's position at the time the session was created.
+  const referenceSpace = await session.requestReferenceSpace('local');
+  
+  // Create a render loop that allows us to draw on the AR view.
+  const onXRFrame = (time, frame) => {
+    // Queue up the next draw request.
+    session.requestAnimationFrame(onXRFrame);
     
-
-    // Render the scene with THREE.WebGLRenderer.
-    renderer.render(scene, camera)
+    // Bind the graphics framebuffer to the baseLayer's framebuffer
+    gl.bindFramebuffer(gl.FRAMEBUFFER, session.renderState.baseLayer.framebuffer)
+    
+    // Retrieve the pose of the device.
+    // XRFrame.getViewerPose can return null while the session attempts to establish tracking.
+    const pose = frame.getViewerPose(referenceSpace);
+    if (pose) {
+      // In mobile AR, we only have one view.
+      const view = pose.views[0];
+      
+      const viewport = session.renderState.baseLayer.getViewport(view);
+      renderer.setSize(viewport.width, viewport.height)
+      
+      // Use the view's transform matrix and projection matrix to configure the THREE.camera.
+      camera.matrix.fromArray(view.transform.matrix)
+      camera.projectionMatrix.fromArray(view.projectionMatrix);
+      camera.updateMatrixWorld(true);
+      
+      // Render the scene with THREE.WebGLRenderer.
+      renderer.render(scene, camera)
+    }
   }
-}
-session.requestAnimationFrame(onXRFrame);
-
-
-
-
+  session.requestAnimationFrame(onXRFrame);
+  
 }
 </script>
 </body>
-</html>
+
-- 
GitLab

