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Zoom 2
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Zoom - Release 2 (1996)(Active Software)[!].iso
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graphics
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stereopticon
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soguide
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a05
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1996-03-15
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HOW STEREOPTICON WORKS
Stereopsis (binocular vision) is based on giving the left and right eyes
horizontally offset views of the same image. Stereopticon uses a red/blue
system and requires red/blue {[A06,0,7]glasses} to make it work.
The Stereoptic system sets up an exact model of the way people see three-
dimensional scenes in real life. Its immediacy, flexibility, and ease of
use make it ideal for animations and games.
Stereopticon converts one or more 8-color flat pictures into one 32-color
stereoscopic picture. Five colors (including the background color) of the
8-color picture and 25 colors of the 32-color picture are actually used.
When you look at the stereoscopic picture through the glasses, you'll see
up to five shades of grey.
Each flat picture becomes a "plane" of the finished picture. Up to 24
planes can be used. Each plane must be "offset" and then "overlaid".
Offsetting means splitting a plane into its red and blue (right and left)
components. Overlaying means blending an offset plane with the planes
behind it.
The planes are lettered from A to X. This {[P05,4,7] picture } shows all 24 planes.
A is the plane farthest in the background, J is on a level with the monitor
screen, and X is about a quarter of the way between the monitor screen and
the viewer's eyes. Here are the offsets in pixels for each plane:
A +9 E +5 I +1 M -3 Q -8 U -17
B +8 F +4 J 0 N -4 R -10 V -20
C +7 G +3 K -1 O -5 S -12 W -24
D +6 H +2 L -2 P -6 T -14 X -30
If you're using the palette with the black background, the offset numbers
refer to the right offset of the blue image. If you're using the white
background, they refer to the right offset of the red image.