-
Notifications
You must be signed in to change notification settings - Fork 4
/
Copy pathimmersive-ar-session-2.html
214 lines (182 loc) · 8.14 KB
/
immersive-ar-session-2.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
<!doctype html>
<!--
Copyright 2018 The Immersive Web Community Group
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-->
<html>
<head>
<meta charset='utf-8'>
<meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
<meta name='mobile-web-app-capable' content='yes'>
<meta name='apple-mobile-web-app-capable' content='yes'>
<link rel='icon' type='image/png' sizes='32x32' href='favicon-32x32.png'>
<link rel='icon' type='image/png' sizes='96x96' href='favicon-96x96.png'>
<link rel='stylesheet' href='css/common.css'>
<title>Immersive AR Session</title>
</head>
<body>
<header>
<details open>
<summary>Immersive AR Session</summary>
<p>
This sample demonstrates how to use an 'immersive-ar' XRSession to
present a simple WebGL scene to an transparent or passthrough XR
device. The logic is largely the same as the corresponding VR sample,
with the primary difference being that no background is rendered and
the model is scaled down for easier viewing in a real-world space.
<a class="back" href="./">Back</a>
</p>
</details>
</header>
<script type="module">
import {WebXRButton} from './js/util/webxr-button.js';
import {Scene} from './js/render/scenes/scene.js';
import {Renderer, createWebGLContext} from './js/render/core/renderer.js';
import {SkyboxNode} from './js/render/nodes/skybox.js';
import {InlineViewerHelper} from './js/util/inline-viewer-helper.js';
import {Gltf2Node} from './js/render/nodes/gltf2.js';
import {QueryArgs} from './js/util/query-args.js';
// If requested, use the polyfill to provide support for mobile devices
// and devices which only support WebVR.
import WebXRPolyfill from './js/third-party/webxr-polyfill/build/webxr-polyfill.module.js';
if (QueryArgs.getBool('usePolyfill', true)) {
let polyfill = new WebXRPolyfill();
}
// XR globals.
let xrButton = null;
let xrImmersiveRefSpace = null;
let inlineViewerHelper = null;
let xrBoundedRefSpace = null;
// WebGL scene globals.
let gl = null;
let renderer = null;
let scene = new Scene();
let solarSystem = new Gltf2Node({url: 'media/gltf/space/space.gltf'});
// The solar system is big (citation needed). Scale it down so that users
// can move around the planets more easily.
solarSystem.scale = [0.1, 0.1, 0.1];
scene.addNode(solarSystem);
// Still adding a skybox, but only for the benefit of the inline view.
let skybox = new SkyboxNode({url: 'media/textures/milky-way-4k.png'});
scene.addNode(skybox);
function initXR() {
xrButton = new WebXRButton({
onRequestSession: onRequestSession,
onEndSession: onEndSession,
textEnterXRTitle: "START AR",
textXRNotFoundTitle: "AR NOT FOUND",
textExitXRTitle: "EXIT AR",
});
document.querySelector('header').appendChild(xrButton.domElement);
if (navigator.xr) {
// Checks to ensure that 'immersive-ar' mode is available, and only
// enables the button if so.
navigator.xr.isSessionSupported('immersive-ar').then((supported) => {
xrButton.enabled = supported;
});
navigator.xr.requestSession('inline').then(onSessionStarted);
}
}
function onRequestSession() {
// Requests an 'immersive-ar' session, which ensures that the users
// environment will be visible either via video passthrough or a
// transparent display. This may be presented either in a headset or
// fullscreen on a mobile device.
return navigator.xr.requestSession('immersive-ar', { requiredFeatures: ['local-floor', 'bounded-floor'] })
.then((session) => {
xrButton.setSession(session);
session.isImmersive = true;
onSessionStarted(session);
});
}
function initGL() {
if (gl)
return;
gl = createWebGLContext({
xrCompatible: true
});
document.body.appendChild(gl.canvas);
function onResize() {
gl.canvas.width = gl.canvas.clientWidth * window.devicePixelRatio;
gl.canvas.height = gl.canvas.clientHeight * window.devicePixelRatio;
}
window.addEventListener('resize', onResize);
onResize();
renderer = new Renderer(gl);
scene.setRenderer(renderer);
}
function printBoundary() {
if (xrBoundedRefSpace === null)
return;
console.log("boundary:");
console.log("x0 = " + xrBoundedRefSpace.boundsGeometry[0].x + ", z0 = " + xrBoundedRefSpace.boundsGeometry[0].z);
console.log("x1 = " + xrBoundedRefSpace.boundsGeometry[1].x + ", z1 = " + xrBoundedRefSpace.boundsGeometry[1].z);
console.log("x2 = " + xrBoundedRefSpace.boundsGeometry[2].x + ", z2 = " + xrBoundedRefSpace.boundsGeometry[2].z);
console.log("x3 = " + xrBoundedRefSpace.boundsGeometry[3].x + ", z3 = " + xrBoundedRefSpace.boundsGeometry[3].z);
}
function onSessionStarted(session) {
session.addEventListener('end', onSessionEnded);
if (session.isImmersive) {
// When in 'immersive-ar' mode don't draw an opaque background because
// we want the real world to show through.
skybox.visible = false;
}
initGL();
session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) });
let refSpaceType = session.isImmersive ? 'local' : 'viewer';
session.requestReferenceSpace(refSpaceType).then((refSpace) => {
if (session.isImmersive) {
xrImmersiveRefSpace = refSpace;
session.requestReferenceSpace('bounded-floor').then((refSpace) => {
xrBoundedRefSpace = refSpace;
xrBoundedRefSpace.addEventListener('reset', printBoundary);
// Inform the session that we're ready to begin drawing.
session.requestAnimationFrame(onXRFrame);
});
} else {
inlineViewerHelper = new InlineViewerHelper(gl.canvas, refSpace);
session.requestAnimationFrame(onXRFrame);
}
});
}
function onEndSession(session) {
xrBoundedRefSpace = null;
session.end();
}
function onSessionEnded(event) {
if (event.session.isImmersive) {
xrButton.setSession(null);
// Turn the background back on when we go back to the inlive view.
skybox.visible = true;
}
}
// Called every time a XRSession requests that a new frame be drawn.
function onXRFrame(t, frame) {
let session = frame.session;
let refSpace = session.isImmersive ?
xrImmersiveRefSpace :
inlineViewerHelper.referenceSpace;
let pose = frame.getViewerPose(refSpace);
scene.startFrame();
session.requestAnimationFrame(onXRFrame);
scene.drawXRFrame(frame, pose);
scene.endFrame();
}
// Start the XR application.
initXR();
</script>
</body>
</html>