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dc29d45c · Ramirez · 8e885e31 · dc29d45c
Commit dc29d45c authored 2 years ago by Ramirez
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--- a/public/FirtsTrial.html
+++ b/public/FirtsTrial.html
+<!doctype html>
+<html>
+<head>
+  <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>Tap to Place Demo</title>
+
+  <!-- three.js -->
+  <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>
+
+<!-- Starting an immersive WebXR session requires user interaction.
+    We start this one with a simple button. -->
+<button onclick="activateXR()">Start Tap to Place Demo</button>
+<script>
+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});
+
+  // 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;
+
+  // To be continued in upcoming steps.
+
+  const loader = new THREE.GLTFLoader();
+  let model;
+  loader.load("URL_TO_YOUR_GTLF_MODEL", function(gltf) {
+    model = gltf.scene;
+  });
+
+  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 });
+
+  const reticle = new THREE.Mesh(
+    new THREE.RingGeometry(0.1, 0.12, 32),
+    new THREE.MeshBasicMaterial({ color: 0x00ff00 })
+  );
+  reticle.visible = false;
+  scene.add(reticle);
+
+  const onXRFrame = (time, frame) => {
+    session.requestAnimationFrame(onXRFrame);
+
+    gl.bindFramebuffer(gl.FRAMEBUFFER, session.renderState.baseLayer.framebuffer)
+