Update public/index.html

public/index.html

@@ -20,8 +20,12 @@ async function activateXR() {
   const canvas = document.createElement("canvas");
   document.body.appendChild(canvas);
   const gl = canvas.getContext("webgl", {xrCompatible: true});
+const scene = new THREE.Scene();
 
-  const scene = new THREE.Scene();
+const directionalLight = new THREE.DirectionalLight(0xffffff, 0.3);
+directionalLight.position.set(10, 15, 10);
+scene.add(directionalLight);
+  
 
 // The sphere will have a different color on each side.
 const materials = [
@@ -34,9 +38,9 @@ const materials = [
 ];
 
 // Create the sphere and add it to the demo scene.
-const sphere = new THREE.Mesh(new THREE.SphereBufferGeometry(0.5, 0.5, 0.5), materials);
-sphere.position.set(0, 0, -1);
-scene.add(sphere);
+//const sphere = new THREE.Mesh(new THREE.SphereBufferGeometry(0.5, 0.5, 0.5), materials);
+//sphere.position.set(0, 0, -1);
+//scene.add(sphere);
 
 // Set up the WebGLRenderer, which handles rendering to the session's base layer.
 const renderer = new THREE.WebGLRenderer({
@@ -62,6 +66,34 @@ session.updateRenderState({
 // 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) => {
@@ -86,13 +118,26 @@ const onXRFrame = (time, frame) => {
     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);
+    }
+
+    
+
     // Render the scene with THREE.WebGLRenderer.
     renderer.render(scene, camera)
   }
 }
 session.requestAnimationFrame(onXRFrame);
 
+
+
+
 }
 </script>
 </body>
-</html>
+</html>
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