Aucbcory.392
net.games
utzoo!decvax!ucbvax!ARPAVAX:CAD:ESVAX:Cory:cc-57
Sun Apr 25 01:24:28 1982
Tempest: vector or raster?
   In reply to a previous note:

    TEMPEST definitely uses vector graphics. Raster has lines on it like
a television screen and anybody who has played Tempest will notice that 
they are not there (although raster lines can be faint on good video games).
Atari's Space Duel also uses vector graphics as did it's forerunner
Asteroids.

    Note that the lines on a Tempest screen are straight, even the ones 
that are at weird angles to the screen...without little 'jogs' in them;
this is a sign of vector graphics. Also one can occasionally find a machine
which is not 'focussed' correctly and actually see all the lines coming out 
from a common point.

					       Emile LeBlanc
					       (ucbvax!T:leblanc)