-
Notifications
You must be signed in to change notification settings - Fork 0
/
stereo-video.html
267 lines (226 loc) · 9.2 KB
/
stereo-video.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
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
<!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>Stereo Video Player</title>
</head>
<body>
<header>
<details open>
<summary>Stereo Video Player</summary>
<p>
This sample demonstrates how to play a stereo 3D video.
<a class="back" href="./">Back</a>
<br/>
<hr/>
Autoplay when VR starts: <input id='autoplayVideo' type='checkbox'/>
</p>
</summary>
</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 {UrlTexture} from './js/render/core/texture.js';
import {ButtonNode} from './js/render/nodes/button.js';
import {Gltf2Node} from './js/render/nodes/gltf2.js';
import {VideoNode} from './js/render/nodes/video.js';
import {InlineViewerHelper} from './js/util/inline-viewer-helper.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();
}
let autoplayCheckbox = document.getElementById('autoplayVideo');
// XR globals.
let xrButton = null;
let xrImmersiveRefSpace = null;
let inlineViewerHelper = null;
// WebGL scene globals.
let gl = null;
let renderer = null;
let scene = new Scene();
scene.addNode(new Gltf2Node({url: 'media/gltf/home-theater/home-theater.gltf'}));
scene.enableStats(false);
let video = document.createElement('video');
video.loop = true;
video.src = 'media/video/bbb-sunflower-540p2-1min.webm';
let videoNode = new VideoNode({
video: video,
displayMode: 'stereoTopBottom'
});
// When the video is clicked we'll pause it if it's playing.
videoNode.onSelect(() => {
if (!video.paused) {
playButton.visible = true;
video.pause();
} else {
playButton.visible = false;
video.play();
}
});
videoNode.selectable = true;
// Move back to the position of the in-room screen and size to cover it.
// Values determined experimentally and with many refreshes.
videoNode.translation = [0.025, 0.275, -4.4];
videoNode.scale = [2.1, 1.1, 1.0];
scene.addNode(videoNode);
video.addEventListener('loadeddata', () => {
// Once the video has loaded up adjust the aspect ratio of the "screen"
// to fit the video's native shape.
let aspect = videoNode.aspectRatio;
if (aspect < 2.0) {
videoNode.scale = [aspect * 1.1, 1.1, 1.0];
} else {
videoNode.scale = [2.1, 2.1 / aspect, 1.0];
}
});
// Add a button to the scene to play/pause the movie.
let playTexture = new UrlTexture('media/textures/play-button.png');
// Create a button that plays the video when clicked.
let playButton = new ButtonNode(playTexture, () => {
// Play the video and hide the button.
if (video.paused) {
playButton.visible = false;
video.play();
}
});
// Move the play button to the center of the screen and make it much
// bigger.
playButton.translation = [0.025, 0.275, -4.2];
playButton.scale = [5.0, 5.0, 5.0];
scene.addNode(playButton);
function initXR() {
xrButton = new WebXRButton({
onRequestSession: onRequestSession,
onEndSession: onEndSession
});
document.querySelector('header').appendChild(xrButton.domElement);
if (navigator.xr) {
navigator.xr.isSessionSupported('immersive-vr').then((supported) => {
xrButton.enabled = supported;
});
navigator.xr.requestSession('inline').then(onSessionStarted);
}
}
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 onRequestSession() {
let autoplay = autoplayCheckbox.checked;
let pending;
if (autoplay) {
// If we want the video to autoplay when the session has fully started
// (which may be several seconds after the original requestSession
// call due to clicking through consent prompts or similar) then we
// need to start the video within a user activation event first
// (which this function is.) Once it's been started successfully we
// pause it, at which point we can resume it pretty much whenever we'd
// like.
pending = video.play().then(() => {
video.pause();
});
}
return navigator.xr.requestSession('immersive-vr', {
requiredFeatures: ['local-floor']
}).then((session) => {
xrButton.setSession(session);
session.isImmersive = true;
onSessionStarted(session);
if (autoplay) {
pending.then(() => {
video.play();
});
}
});
}
function onSessionStarted(session) {
session.addEventListener('end', onSessionEnded);
session.addEventListener('select', (ev) => {
let refSpace = ev.frame.session.isImmersive ?
xrImmersiveRefSpace :
inlineViewerHelper.referenceSpace;
scene.handleSelect(ev.inputSource, ev.frame, refSpace);
});
initGL();
scene.inputRenderer.useProfileControllerMeshes(session);
let glLayer = new XRWebGLLayer(session, gl);
session.updateRenderState({ baseLayer: glLayer });
// In this case we're going to use an 'local' frame of reference
// because we want to users head to appear in the right place relative
// to the center chair, as if they're sitting in it, rather than
// somewhere in the room relative to the floor.
let refSpaceType = session.isImmersive ? 'local' : 'viewer';
session.requestReferenceSpace(refSpaceType).then((refSpace) => {
if (session.isImmersive) {
xrImmersiveRefSpace = refSpace;
} else {
inlineViewerHelper = new InlineViewerHelper(gl.canvas, refSpace);
}
session.requestAnimationFrame(onXRFrame);
});
}
function onEndSession(session) {
session.end();
}
function onSessionEnded(event) {
if (event.session.isImmersive) {
xrButton.setSession(null);
video.pause();
}
}
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.updateInputSources(frame, refSpace);
scene.drawXRFrame(frame, pose);
scene.endFrame();
}
// Start the XR application.
initXR();
</script>
</body>
</html>