[photo-3d] More shutter glass answers

[Tom Deering <photo-3d@xxxxxxxxxxx>]

>Do you have to create proprietary 3D
>images in order to view them? What happens when you look
>at JPS files with these? I assume they work with PCs too,

Two formats seem to be major standards.

1) JPS format is essentially a JPEG file with left and right halves, 
in crosseyed format.  You needs some kind of software to change this 
into an image the glasses can use.  That exists for the PC only as 
far as I've ever heard.  Some PC-only software can translate JPS into 
interleaved, anaglyph, cross-eyed, and parallel images.  A standard 
has been written but seems poorly supported.

2) Interleaved format is less popular, but to mind has many 
advantages.  Comparing same-sized files, JPS will appear much smaller 
than an interleaved file, although at higher vertical resolution. I 
find interleaved format easier to work with when I make my own views, 
or when I retouch images.  Interleaved can be viewed  without special 
software if your video card supports interlaced mode, or if you have 
glasses like 3d.com sells.  I don't believe a standard has been 
established.

Like almost everything, PCs are better supported than Macs.  Some 
kinds of software are available only for PCs.

Disclaimer: I'm sure no expert.  I'm just sharing what I know.  If 
somebody knows more, I'll gladly differ to them.

Tom
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tmd@xxxxxxxxxxx    http://www.deering.org