[whatwg] Dealing with Stereoscopic displays
ddailey at zoominternet.net
Mon Apr 26 19:15:12 PDT 2010
No it isn't simple. Allied issues have been discussed here before.
As the nature of input devices become richer (e.g. eye movement glasses that
give binocular disparity data to the display device) then the nature of the
convergence data that defines the scene becomes more relevant to its primary
"semantics". As SVG and 3D technologies begin to bridge the gap between 2
and 3D (cf. the <replicate> proposal  or  ) the distinction between
styling and markup so tenaciously held in HTML may cease to be so clearcut.
----- Original Message -----
From: "David Singer" <singer at apple.com>
To: <whatwg at lists.whatwg.org>
Sent: Monday, April 26, 2010 8:02 PM
Subject: Re: [whatwg] Dealing with Stereoscopic displays
I agree that this probably means that web elements that are 'flat' would be
styled by CSS with a depth. This is important if other material presented
to the user really is stereo (e.g. a left/right eye coded movie). The movie
will be set so that the eyes are expected to have a certain 'convergence'
(i.e. they are looking slightly inward towards some point) and it's
important that if material is overlaid on that. it has the same convergence.
Obviously, this is unlike the real world where focus distance and
convergence distance are the same (focus distance is fixed at the screen
distance), but the brain can get very confused if two things that are both
in focus are at difference convergence distances.
This is not a simple question, as I expect you are beginning to realize.
Multimedia and Software Standards, Apple Inc.
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