| 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
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334 |
1×
1×
1×
1×
1×
1×
1×
1×
1×
1×
1×
1×
1×
1×
1×
1×
1×
1×
1×
1×
1×
1×
1×
| import videojs from 'video.js';
import { version as VERSION } from '../package.json';
import 'babel-polyfill';
import WebXRPolyfill from 'webxr-polyfill';
import * as THREE from 'three';
import OrbitOrientationControls from './orbit-orientation-controls.js';
import CanvasPlayerControls from './canvas-player-controls';
import './big-vr-play-button';
import './cardboard-button';
const Plugin = videojs.getPlugin('plugin');
// Default options for the plugin.
const defaults = {};
class Xr extends Plugin {
/**
* Create a Xr plugin instance.
*
* @param {Player} player
* A Video.js Player instance.
*
* @param {Object} [options]
* An optional options object.
*
* While not a core part of the Video.js plugin architecture, a
* second argument of options is a convenient way to accept inputs
* from your plugin's caller.
*/
constructor(player, options) {
// the parent class will add player under this.player
super(player);
this.options = videojs.mergeOptions(defaults, options);
this.bigPlayButtonIndex_ = player.children().indexOf(player.getChild('BigPlayButton')) || 0;
Eif (!navigator.xr)
this.polyfill_ = new WebXRPolyfill();
this.handleVrDisplayActivate_ = videojs.bind(this, this.handleVrDisplayActivate_);
this.handleVrDisplayDeactivate_ = videojs.bind(this, this.handleVrDisplayDeactivate_);
this.onXRSessionEnd_ = videojs.bind(this, this.onXRSessionEnd_);
this.handleResize_ = videojs.bind(this, this.handleResize_);
this.animate_ = videojs.bind(this, this.animate_);
this.currentSession = null;
this.on(player, 'loadedmetadata', this.init);
this.player.ready(() => {
this.player.addClass('vjs-xr');
});
}
handleVrDisplayActivate_() {
if (!this.xrSupported)
return;
var self = this;
var sessionInit = { optionalFeatures: ['local-floor'] };
navigator.xr.requestSession('immersive-vr', sessionInit).then(function (session) {
self.renderer.xr.setSession(session);
session.addEventListener('end', self.onXRSessionEnd_);
self.xrActive = true;
self.currentSession = session;
session.requestReferenceSpace('local')
.then((referenceSpace) => {
self.xrReferenceSpace = referenceSpace;
})
self.controls3d.disable();
self.trigger('xrSessionActivated');
self.animationFrameId_ = self.requestAnimationFrame(self.animate_);
});
}
handleVrDisplayDeactivate_() {
this.currentSession.end();
}
onXRSessionEnd_() {
if (this.animationFrameId_) {
this.currentSession.cancelAnimationFrame(this.animationFrameId_);
this.animationFrameId_ = 0;
}
this.currentSession = null;
this.xrActive = false;
this.controls3d.enable();
this.trigger('xrSessionDeactivated');
this.animationFrameId_ = this.requestAnimationFrame(this.animate_);
}
requestAnimationFrame(fn) {
if (this.xrActive)
return this.currentSession.requestAnimationFrame(fn);
else
return this.player.requestAnimationFrame(fn);
}
cancelAnimationFrame(id) {
return this.player.cancelAnimationFrame(id);
}
togglePlay_() {
if (this.player.paused()) {
this.player.play();
} else {
this.player.pause();
}
}
animate_(xrTimestamp, xrFrame) {
if (!this.initialized_) {
return;
}
if (this.getVideoEl_().readyState === this.getVideoEl_().HAVE_ENOUGH_DATA) {
if (this.videoTexture) {
this.videoTexture.needsUpdate = true;
}
}
if (!this.xrActive)
this.controls3d.update();
if (this.xrActive && xrFrame) {
this.xrPose = xrFrame.getViewerPose(this.xrReferenceSpace);
this.trigger('xrCameraUpdate');
}
this.camera.getWorldDirection(this.cameraVector);
this.animationFrameId_ = this.requestAnimationFrame(this.animate_);
this.renderer.render(this.scene, this.camera);
}
handleResize_() {
const width = this.player.currentWidth();
const height = this.player.currentHeight();
this.camera.aspect = width / height;
this.camera.updateProjectionMatrix();
}
init() {
this.reset();
this.xrSupported = false;
this.camera = new THREE.PerspectiveCamera(75, this.player.currentWidth() / this.player.currentHeight(), 1, 1000);
// Store vector representing the direction in which the camera is looking, in world space.
this.cameraVector = new THREE.Vector3();
this.camera.layers.enable(1);
this.scene = new THREE.Scene();
this.videoTexture = new THREE.VideoTexture(this.getVideoEl_());
// shared regardless of wether VideoTexture is used or
// an image canvas is used
this.videoTexture.generateMipmaps = false;
this.videoTexture.minFilter = THREE.LinearFilter;
this.videoTexture.magFilter = THREE.LinearFilter;
this.videoTexture.format = THREE.RGBFormat;
const position = { x: 0, y: 0, z: 0 };
if (this.scene) {
this.scene.remove(this.movieScreen);
}
// 360 equirectangular projection
this.movieGeometry = new THREE.SphereBufferGeometry(256, 32, 32);
this.movieMaterial = new THREE.MeshBasicMaterial({ map: this.videoTexture, side: THREE.BackSide });
this.movieScreen = new THREE.Mesh(this.movieGeometry, this.movieMaterial);
this.movieScreen.position.set(position.x, position.y, position.z);
this.movieScreen.scale.x = -1;
this.movieScreen.quaternion.setFromAxisAngle({ x: 0, y: 1, z: 0 }, -Math.PI / 2);
this.scene.add(this.movieScreen);
this.player.removeChild('BigPlayButton');
this.player.addChild('BigVrPlayButton', {}, this.bigPlayButtonIndex_);
this.player.bigPlayButton = this.player.getChild('BigVrPlayButton');
this.camera.position.set(0, 0, 0);
this.renderer = new THREE.WebGLRenderer({
devicePixelRatio: window.devicePixelRatio,
alpha: false,
clearColor: 0xffffff,
antialias: true
});
this.renderer.setSize(this.player.currentWidth(), this.player.currentHeight());
this.renderedCanvas = this.renderer.domElement;
this.renderedCanvas.setAttribute('style', 'width: 100%; height: 100%; position: absolute; top:0;');
const videoElStyle = this.getVideoEl_().style;
this.player.el().insertBefore(this.renderedCanvas, this.player.el().firstChild);
videoElStyle.zIndex = '-1';
videoElStyle.opacity = '0';
this.xrActive = false;
if (!this.controls3d) {
// self.controls3d = new OrbitControls(self.camera, self.renderedCanvas);
const options = {
camera: this.camera,
canvas: this.renderedCanvas,
// check if its a half sphere view projection
halfView: false,
orientation: false
};
this.controls3d = new OrbitOrientationControls(options);
this.canvasPlayerControls = new CanvasPlayerControls(this.player, this.renderedCanvas);
}
if (window.navigator.xr) {
this.renderer.xr.enabled = true;
// this.renderer.xr.setReferenceSpaceType('local');
var self = this;
navigator.xr.isSessionSupported('immersive-vr').then(function (supported) {
self.xrSupported = supported;
if (supported) {
self.addCardboardButton_();
console.log('webxr session supported');
} else {
console.log('web xr device not found, using orbit controls');
}
});
} else {
console.log('web xr not available');
}
self.completeInitialization(); // wait until controls are initialized
this.animationFrameId_ = this.requestAnimationFrame(this.animate_);
this.on(this.player, 'fullscreenchange', this.handleResize_);
window.addEventListener('vrdisplaypresentchange', this.handleResize_, true);
window.addEventListener('resize', this.handleResize_, true);
// these are triggered by the carboard button:
window.addEventListener('vrdisplayactivate', this.handleVrDisplayActivate_, true);
window.addEventListener('vrdisplaydeactivate', this.handleVrDisplayDeactivate_, true);
}
completeInitialization() {
this.initialized_ = true;
this.trigger('initialized');
}
addCardboardButton_() {
if (!this.player.controlBar.getChild('CardboardButton')) {
this.player.controlBar.addChild('CardboardButton', {});
}
}
getVideoEl_() {
return this.player.el().getElementsByTagName('video')[0];
}
reset() {
Eif (!this.initialized_) {
return;
}
if (this.controls3d) {
this.controls3d.dispose();
this.controls3d = null;
}
if (this.canvasPlayerControls) {
this.canvasPlayerControls.dispose();
this.canvasPlayerControls = null;
}
window.removeEventListener('resize', this.handleResize_, true);
window.removeEventListener('vrdisplaypresentchange', this.handleResize_, true);
window.removeEventListener('vrdisplayactivate', this.handleVrDisplayActivate_, true);
window.removeEventListener('vrdisplaydeactivate', this.handleVrDisplayDeactivate_, true);
// re-add the big play button to player
if (!this.player.getChild('BigPlayButton')) {
this.player.addChild('BigPlayButton', {}, this.bigPlayButtonIndex_);
}
if (this.player.getChild('BigVrPlayButton')) {
this.player.removeChild('BigVrPlayButton');
}
// remove the cardboard button
if (this.player.getChild('CardboardButton')) {
this.player.controlBar.removeChild('CardboardButton');
}
// reset the video element style so that it will be displayed
const videoElStyle = this.getVideoEl_().style;
videoElStyle.zIndex = '';
videoElStyle.opacity = '';
// remove the old canvas
if (this.renderedCanvas) {
this.renderedCanvas.parentNode.removeChild(this.renderedCanvas);
}
if (this.animationFrameId_) {
this.cancelAnimationFrame(this.animationFrameId_);
}
this.initialized_ = false;
}
dispose() {
this.reset();
super.dispose();
}
polyfillVersion() {
return WebXRPolyfill.version;
}
}
// Define default values for the plugin's `state` object here.
Xr.defaultState = {};
// Include the version number.
Xr.VERSION = VERSION;
// Register the plugin with video.js.
videojs.registerPlugin('xr', Xr);
export default Xr;
|