P3D Re: Dumb questions (is there such a thing?)

[Marvin Jones <Campfire@xxxxxxxxxxxxxx>]

Message text written by INTERNET:photo-3d@xxxxxxxxxxxxxxxxx
>>Many of the modern SIRDS today seem to start out as images
similar to the POVray images I've seen; just stereo pairs cut into strips
of
left & right images for divergence viewing.  My question is this:  If a
computer-developed stereo pair can be converted to SIRDS, why can't a
photograph?<<

I'm not sure a stereo pair can be converted into SIRDS; certainly not into
a GOOD one, at any rate. The underlying picture made into a SIRDS is a
single-image monotone, with white being the near point, black being the far
point, and shades of gray in between. This kind of image can be fairly
easily generated by POV-Ray or other "3D" modelling programs.

>>Ok, another dumb question...  I have seen some nice anaglyphs, but most
of
the ones I've seen have a certain amount of ghosting.  Since I've just
started making them myself, I've noticed more ghosting than I'd like.  Is
this something I have to learn to live with, or are there some tricks/tips
to keep ghosting to a minimum?<<

Anaglyph ghosting is minimized by a good match between image colors and
glasses lenses. If you've got a good match, an anaglyph can be nearly
perfect, but if not, ghosting can result. You didn't say how you were
creating your images, but one of the first things you might look into is
"toning down" your cyan and megenta images so they are easier for the
lenses to mask.


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