My question is how performatic it is to use and if it is advisable to expose 20 Vimeo videos in different panels.
Is it possible to generate external controls? As buttons to access play or stop from a 3D interface, I could not find much information on how to do it, or if it is possible.
Any kind of information about it would be very helpful.
Though it may be possible for high end devices, with 20 videos you may hit performance bottlenecks for loading/playback and potentially high memory allocation (which can lead to crashes).
An alternative is to show a thumbnail and load and play the video on demand when the user is close / has requested playback.
Actually the example project you mention implements that as well: