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Info-Graphics Digest	Sun Jul  5 03:00:14 PDT 1987

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Today's Topics:

 Graphic boards with P.A.L CCIR signal for video recording?
 Re: Graphics in games

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Date: 26 JUN 87 17:47-N
From: ZRFA1%DS0RUS51.BITNET@wiscvm.wisc.edu
Subject: Graphic boards with P.A.L CCIR signal for video recording?

We intend to do animated computer graphics on video tapes.
We have bought a Sony VO 5850 P and a Video tape recorder
controller VES 12/88U from CFE to do single frame recording.

We are trying to find a computer graphics board with at
least 256 colors which delivers a video signal conforming to
the P.A.L. CCIR standard. This is needed for the Recorder as
input. Preferably the board should be for a mVAX or PC, but
other possiblities might also be fine.

Could anybody give me a hint, or tell me of your experiences
if you are using or doing something comparable.

                                Thank you in advance
                        Ulrich Lang ( ZRFA1@DS0RUS51.BITNET )
                        University of Stuttgart Computer Center

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Date: Sun, 28 Jun 87 11:38:34 PDT
From: ucbcad!ames!hoptoad!farren@ucbvax.Berkeley.EDU (Mike Farren)
Subject: Re: Graphics in games
Organization: Nebula Consultants in San Francisco

Graphics in games are considerably different than the general issues
in graphics that you'll see discussed in Info-Graphics.  Rather than
general graphics interface, you are concerned with a special-purpose
application whose main requirement is speed.  While there are a number
of good references on the field of computer graphics (I recommend
Foley/VanDam's Fundamentals of Interactive Computer Graphics), as a
practicing games programmer for seven years, I have found that very
little of the techniques described in such a book are applicable in
games design.  The things you want to look for are high-speed BitBlt
type routines - games typically are most concerned with moving things
about on the screen quickly, not generating them from scratch each
frame.


-- 
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                 "... if the church put in half the time on covetousness
Mike Farren      that it does on lust, this would be a better world ..."
hoptoad!farren       Garrison Keillor, "Lake Wobegon Days"



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