From c550846bdf8e778b7c31c237ea162adac049ef5d Mon Sep 17 00:00:00 2001
From: Karakas <22kaen1bdi@hft-stuttgart.de>
Date: Thu, 23 Nov 2023 09:49:16 +0000
Subject: [PATCH] Update public/index.html
---
public/index.html | 40 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/public/index.html b/public/index.html
index aec9a1d..1626c9c 100644
--- a/public/index.html
+++ b/public/index.html
@@ -53,6 +53,46 @@ async function activateXR() {
const camera = new THREE.PerspectiveCamera();
camera.matrixAutoUpdate = false;
+ // Initialize a WebXR session using "immersive-ar".
+ const session = await navigator.xr.requestSession("immersive-ar");
+ session.updateRenderState({
+ baseLayer: new XRWebGLLayer(session, gl)
+ });
+
+ // 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 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);
+
+ // Render the scene with THREE.WebGLRenderer.
+ renderer.render(scene, camera)
+ }
+ }
+ session.requestAnimationFrame(onXRFrame);
+
+
}
</script>
</body>
--
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