Amhtsa.157 net.games utzoo!decvax!harpo!eagle!mhtsa!rick Wed May 5 22:33:48 1982 Re: Raster vs. Vector In reply to ...minn-ua!kirk I would take issue with points 1 and 3. 1) No three-color, full spectrum, commercial color vector display exists. A couple of years ago at NCC '78 I can remember seeing an Evans&Sutherland demo showing an excellent, RGB vector display. I understand that the technique employed three guns and phosphor triads. The convergence problems must have been tremendous, but in the carnival atmosphere of an NCC it looked damned good. 3) A good raster tube, at a resolution of 1Kx1K, can display lines that are indistinguishable from a true vector for all intents and purposes. Typical pixel-equivalent resolutions for vector displays are 4Kx4K and produce noticably smoother random lines than any 1Kx1K raster system, and given that the lines are actually "drawn" by the electron gun, any stair-step effect is purely the effect of the shadow mask/phosphor combination. ----------------------------------------------------------------- gopher://quux.org/ conversion by John Goerzen of http://communication.ucsd.edu/A-News/ This Usenet Oldnews Archive article may be copied and distributed freely, provided: 1. There is no money collected for the text(s) of the articles. 2. The following notice remains appended to each copy: The Usenet Oldnews Archive: Compilation Copyright (C) 1981, 1996 Bruce Jones, Henry Spencer, David Wiseman.