From: dvljhg@cs.umu.se (J|rgen Holmberg)
Subject: Re: Plea for help
Date: Sun, 20 Jan 91 10:03:43 GMT
Message-ID: <1991Jan20.100343.23531@cs.umu.se>
Organization: Dep. of Info.Proc, Umea Univ., Sweden


In article <14763@milton.u.washington.edu> aipdc@castle.ed.ac.uk (Paul Crowley) 
writes:
>
>
>kdarling@hobbes.ncsu.edu (Kevin Darling) sez in <14747@milton.u.washington.edu>
>>Most amiga anims don't use it.  Still, a 68030 amiga would be a great
>>choice for low color res VR...  the cpu can often be faster than the
>>blitter for drawing. - kevin
>
>I can confirm this.  Anyone who has seen the game "Starglider II" cannot
>have failed to be impressed with the filled-in real-time 3D graphics the
>game uses, at five or ten frames per second.  The programmer, Jez San,
>wrote his own 3D routines which he says were faster than the Amiga
>blitter. 
>
>If you haven't seen S II, see it and be convinced that VR can be done today.
>
 
The main reason for this is the blitter overhead, you need to send the blitter
some instructions to set it up. I think the fastest way of doing vectors is
drawing polygons with the CPU and clearing with the blitter. BTW Starglider II
is not state of the art vectors on the amiga, there are many demogroups out
there that has beaten his routines.

/Jorgen
-- 
*******************************************************************************
email dvljhg@cs.umu.se - other ways to communicate are a waste of time.
Everything I say is always true, just apply it to the right reality.
"Credo, quia absurdum est."    Credo in absurdum est?



[MODERATOR'S NOTE:  So long as Amiga processing is relevant to virtual
worlds, this newsgroup will carry this discussion.  However, as the
discussion starts to veer toward traditional graphics processing on
the Amiga, I will ask that those who want to continue the discussion
migrate it to comp.graphics, comp.graphics.visualization, or comp.sys.
amiga.  I perceive this topic going in the latter direction.  Thanks
for posting to the appropriate newsgroup. -- Bob Jacobson]