diff --git a/public/index.html b/public/index.html
index 6bfa973ab5ed94fe9223999d34f441a66ef295c4..b8be792b0d032c54217a8149a56089f927ee5daf 100644
--- a/public/index.html
+++ b/public/index.html
@@ -4,16 +4,18 @@
<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>Cube Demo</title>
+ <title>Hit 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 Cube Demo</button>
+<button onclick="activateXR()">Start Hit to Place Demo</button>
<script>
async function activateXR() {
// Add a canvas element and initialize a WebGL context that is compatible with WebXR.
@@ -23,20 +25,9 @@ async function activateXR() {
const scene = new THREE.Scene();
-// The cube 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 cube and add it to the demo scene.
-const cube = new THREE.Mesh(new THREE.BoxBufferGeometry(0.2, 0.2, 0.2), materials);
-cube.position.set(0, 0, -1);
-scene.add(cube);
+ 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({
@@ -54,7 +45,7 @@ const camera = new THREE.PerspectiveCamera();
camera.matrixAutoUpdate = false;
// Initialize a WebXR session using "immersive-ar".
-const session = await navigator.xr.requestSession("immersive-ar");
+const session = await navigator.xr.requestSession("immersive-ar", {requiredFeatures: ['hit-test']});
session.updateRenderState({
baseLayer: new XRWebGLLayer(session, gl)
});
@@ -63,6 +54,35 @@ session.updateRenderState({
// 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.
@@ -86,12 +106,25 @@ 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>