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Commit 6af52c74 authored by Esguerra Montana's avatar Esguerra Montana
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Update index.html

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...@@ -8,17 +8,13 @@ ...@@ -8,17 +8,13 @@
<!-- 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() {
// 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});
...@@ -29,98 +25,83 @@ async function activateXR() { ...@@ -29,98 +25,83 @@ async function activateXR() {
directionalLight.position.set(10, 15, 10); directionalLight.position.set(10, 15, 10);
scene.add(directionalLight); scene.add(directionalLight);
// Set up the WebGLRenderer, which handles rendering to the session's base layer. const renderer = new THREE.WebGLRenderer({
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;
const camera = new THREE.PerspectiveCamera();
// The API directly updates the camera matrices. camera.matrixAutoUpdate = false;
// Disable matrix auto updates so three.js doesn't attempt
// to handle the matrices independently. const session = await navigator.xr.requestSession("immersive-ar", {requiredFeatures: ['hit-test']});
const camera = new THREE.PerspectiveCamera(); session.updateRenderState({
camera.matrixAutoUpdate = false; baseLayer: new XRWebGLLayer(session, gl)
});
// Initialize a WebXR session using "immersive-ar".
const session = await navigator.xr.requestSession("immersive-ar", {requiredFeatures: ['hit-test']}); const referenceSpace = await session.requestReferenceSpace('local');
session.updateRenderState({ const viewerSpace = await session.requestReferenceSpace('viewer');
baseLayer: new XRWebGLLayer(session, gl) const hitTestSource = await session.requestHitTestSource({ space: viewerSpace });
});
const loader = new THREE.GLTFLoader();
// A 'local' reference space has a native origin that is located let reticle;
// near the viewer's position at the time the session was created. loader.load("https://immersive-web.github.io/webxr-samples/media/gltf/reticle/reticle.gltf", function(gltf) {
const referenceSpace = await session.requestReferenceSpace('local'); reticle = gltf.scene;
reticle.visible = false;
// Create another XRReferenceSpace that has the viewer as the origin. scene.add(reticle);
const viewerSpace = await session.requestReferenceSpace('viewer'); console.log("Reticle loaded successfully");
// Perform hit testing using the viewer as origin. }, undefined, function(error) {
const hitTestSource = await session.requestHitTestSource({ space: viewerSpace }); console.error("Error loading reticle:", error);
});
let model;
loader.load("https://transfer.hft-stuttgart.de/pages/32esla1mpg/webarTTP/media/sunflower.gltf", function(gltf) {
const loader = new THREE.GLTFLoader(); model = gltf.scene;
let reticle; console.log("Model loaded successfully");
loader.load("https://immersive-web.github.io/webxr-samples/media/gltf/reticle/reticle.gltf", function(gltf) { }, undefined, function(error) {
reticle = gltf.scene; console.error("Error loading model:", error);
reticle.visible = false; });
scene.add(reticle);
}) session.addEventListener("select", (event) => {
if (model && reticle.visible) {
let flower; const clone = model.clone();
loader.load("https://transfer.hft-stuttgart.de/pages/32esla1mpg/webarTTP/media/sunflower.gltf", function(gltf) { clone.position.copy(reticle.position);
flower = gltf.scene; scene.add(clone);
}); console.log("Model placed in 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);
} }
});
// Render the scene with THREE.WebGLRenderer. const onXRFrame = (time, frame) => {
renderer.render(scene, camera) session.requestAnimationFrame(onXRFrame);
}
} gl.bindFramebuffer(gl.FRAMEBUFFER, session.renderState.baseLayer.framebuffer);
session.requestAnimationFrame(onXRFrame);
const pose = frame.getViewerPose(referenceSpace);
if (pose) {
const view = pose.views[0];
const viewport = session.renderState.baseLayer.getViewport(view);
renderer.setSize(viewport.width, viewport.height);
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);
} else if (reticle) {
reticle.visible = false;
}
renderer.render(scene, camera);
}
};
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