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Commit 2b3bbc74 authored by Esguerra Montana's avatar Esguerra Montana
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Update index.html

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...@@ -8,14 +8,17 @@ ...@@ -8,14 +8,17 @@
<!-- three.js --> <!-- three.js -->
<script src="https://unpkg.com/three@0.126.0/build/three.js"></script> <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> <script src="https://unpkg.com/three@0.126.0/examples/js/loaders/GLTFLoader.js"></script>
</head> </head>
<body> <body>
<!-- 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> <button onclick="activateXR()">Start Hit to Place Demo</button>
<script> <script>
async function activateXR() { async function activateXR() {
try { // Add a canvas element and initialize a WebGL context that is compatible with WebXR.
const canvas = document.createElement("canvas"); const canvas = document.createElement("canvas");
document.body.appendChild(canvas); document.body.appendChild(canvas);
const gl = canvas.getContext("webgl", {xrCompatible: true}); const gl = canvas.getContext("webgl", {xrCompatible: true});
...@@ -26,66 +29,80 @@ async function activateXR() { ...@@ -26,66 +29,80 @@ async function activateXR() {
directionalLight.position.set(10, 15, 10); directionalLight.position.set(10, 15, 10);
scene.add(directionalLight); scene.add(directionalLight);
const renderer = new THREE.WebGLRenderer({ // Set up the WebGLRenderer, which handles rendering to the session's base layer.
const renderer = new THREE.WebGLRenderer({
alpha: true, alpha: true,
preserveDrawingBuffer: true, preserveDrawingBuffer: true,
canvas: canvas, canvas: canvas,
context: gl context: gl
}); });
renderer.autoClear = false; 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)
});
const camera = new THREE.PerspectiveCamera(); // A 'local' reference space has a native origin that is located
camera.matrixAutoUpdate = false; // 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 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 loader = new THREE.GLTFLoader();
let reticle; const loader = new THREE.GLTFLoader();
loader.load("https://transfer.hft-stuttgart.de/gitlab/32esla1mpg/webarTTP/-/blolb/master/media/reticle.gltf", function(gltf) { let reticle;
loader.load("https://transfer.hft-stuttgart.de/gitlab/32esla1mpg/webarTTP/-/blolb/master/media/reticle.gltf", function(gltf) {
reticle = gltf.scene; reticle = gltf.scene;
reticle.visible = false; reticle.visible = false;
scene.add(reticle); scene.add(reticle);
console.log("Reticle loaded successfully"); })
}, undefined, function(error) {
console.error("Error loading reticle:", error); let flower;
}); loader.load("https://transfer.hft-stuttgart.de/gitlab/32esla1mpg/webarTTP/-/blob/master/gltf/sunflower.gltf", function(gltf) {
flower = gltf.scene;
let model; });
loader.load("https://transfer.hft-stuttgart.de/gitlab/32esla1mpg/webarTTP/-/blob/master/gltf/sunflower.gltf", function(gltf) {
model = gltf.scene; session.addEventListener("select", (event) => {
console.log("Model loaded successfully"); if (flower) {
}, undefined, function(error) { const clone = flower.clone();
console.error("Error loading model:", error);
});
session.addEventListener("select", (event) => {
if (model && reticle.visible) {
const clone = model.clone();
clone.position.copy(reticle.position); clone.position.copy(reticle.position);
scene.add(clone); scene.add(clone);
console.log("Model placed in scene");
} }
}); });
const onXRFrame = (time, frame) => { // 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); session.requestAnimationFrame(onXRFrame);
gl.bindFramebuffer(gl.FRAMEBUFFER, session.renderState.baseLayer.framebuffer); // 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); const pose = frame.getViewerPose(referenceSpace);
if (pose) { if (pose) {
// In mobile AR, we only have one view.
const view = pose.views[0]; const view = pose.views[0];
const viewport = session.renderState.baseLayer.getViewport(view); const viewport = session.renderState.baseLayer.getViewport(view);
renderer.setSize(viewport.width, viewport.height); renderer.setSize(viewport.width, viewport.height)
camera.matrix.fromArray(view.transform.matrix); // 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.projectionMatrix.fromArray(view.projectionMatrix);
camera.updateMatrixWorld(true); camera.updateMatrixWorld(true);
...@@ -93,19 +110,19 @@ async function activateXR() { ...@@ -93,19 +110,19 @@ async function activateXR() {
if (hitTestResults.length > 0 && reticle) { if (hitTestResults.length > 0 && reticle) {
const hitPose = hitTestResults[0].getPose(referenceSpace); const hitPose = hitTestResults[0].getPose(referenceSpace);
reticle.visible = true; reticle.visible = true;
reticle.position.set(hitPose.transform.position.x, hitPose.transform.position.y, hitPose.transform.position.z); reticle.position.set(hitPose.transform.position.x, hitPose.transform.position.y, hitPose.transform.position.z)
reticle.updateMatrixWorld(true); reticle.updateMatrixWorld(true);
} else if (reticle) {
reticle.visible = false;
} }
renderer.render(scene, camera);
}
}; // Render the scene with THREE.WebGLRenderer.
session.requestAnimationFrame(onXRFrame); renderer.render(scene, camera)
} catch (error) {
console.error("Error in activateXR:", error);
} }
}
session.requestAnimationFrame(onXRFrame);
} }
</script> </script>
</body> </body>
......
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Dies ist die Gitlab-Instanz des Transferportals der Hochschule für Technik Stuttgart. Hier geht es zurück zum Portal