[no subject]

e.g. A GS with a VOC would have two graphics layers.  The GS maintains one
graphic layer while the VOC has one of it's own.  The two layers are mixed
together and output to the screen.  Changing the VOC's images won't affect
the GS video images and vice versa.  The only change would be in the mixed
output.

Most game machines use graphics planes to do neat stuff like have a picture
of the background in layer 1, fighter planes sprites in layer 2, explosion
sprites in layer 3, and say text status info in layer 4.  These are stacked
on the screen, but moving around say the fighter planes in layer 2 does not
mean having to manually redraw the stuff in the background layer because
it's not affected.  This makes complex multilayer graphics easy and fast,
which is not on the GS.

Page flipping is supported on the TurboRez, but page flipping is for
usually used to eliminate flicker on slow single layer graphics.

Now, if Bill is talking about bit-planes, then it's a totally different
subject and I did my time chanting to the winds. :)

Joseph
--
jlee@bonnie.ics.uci.edu  | "If builders built buildings the way programmers
-------------------------+  wrote programs, then the first woodpecker that
     Creative 'Ware      |  came along would destroy civilization."
        II(><)II         |  -- Weinberg's Law