Firefox developers are making efforts to support stereo video (“three-dimensional cinema”) in WebM format (for the HTML5 video tag), first on nVidia video cards

This has not yet been announced publicly and officially. (In any case, I have not heard yet.) However, if you independently go and search carefully, you will find the most unambiguous evidence: right now in the development environment, work is underway to ensure that the tagin HTML5 proved to be suitable for displaying stereo video recordings (they are also “three-dimensional cinema”, they are also “3D-video”) - at least on modern nVidia video cards.

It is well known that the Internet video format WebM (actively promoted by Google, for example) is based on the Matroska container . So: it turns out that in the summer of 2010 the container’s developers started a lively correspondence (here’s an example of a letter ) on the standardization of packaging stereo video recordings in this container. At present, this process, apparently, has reached its results and allows the development of specific software implementations.

And implementations were not slow to appear!

The contents of patches and correspondence for several “bugs” that have switched to the “FIXED” state in the Mozilla Foundation’s bugsilla ([ 584255 ], [ 584259 ], [ 617220 ]) allow one to see firsthand that the pieces of the NvD3D-specific code (implying the operation of Direct3D on nVidia vidyuhs) have already landed in different beta versions of Firefox 4 (including the last, tenth beta), with the calculation both on DirectX 9 and DirectX 10.

Thus, the upcoming web-vision will be stereoscopic - not only flat, as many thought.

_{I wonder how far this evolution can go. It is unlikely that its course will be limited to only one elementI see such an analogue of the CSS property “z-index”, which will control not the order of overlapping layers, but the actual applicate of the element. Again there is also WebGL ...}