Path: utzoo!censor!geac!torsqnt!jarvis.csri.toronto.edu!cs.utexas.edu!usc!ucsd!nosc!crash!pro-graphics.cts.com!bobl
From: bobl@pro-graphics.cts.com (Bob Lindabury)
Newsgroups: comp.sys.amiga
Subject: Re: Graphics standards and super-graphics s/w
Message-ID: <1654@crash.cts.com>
Date: 25 Feb 90 06:36:43 GMT
Sender: root@crash.cts.com
Lines: 41

In-Reply-To: message from sparks@corpane.UUCP

> Wait, wait, wait. :-) I don't remember anything about only 16 colors per
> scanline. The only documentation I found on dynaham states that it gives
> you HAM in high res. Which to me means that you get 16 BASE color registers
> (per scanline because it is dynamic ham) but in order for it to be
> HAM, you should be able to modify those 16 base colors into other colors,
> just like in low res normal ham.
> 
>> IMHO, Dyna-HAM and DDHR are just marketing ploys and do not add anything
>> useful to our graphics modes.  I would MUCH rather see a full 8 bit board that
>> would support 256 colors per scan line.
> 
> what is DDHR? But I agree with you above. I am glad that there IS dynaham
> but I don't see too much use for it, except as an oddity. Maybe if they
> cut down on all the CPU time it uses and come out with a paint program
> for it, then it would be useful. BTW: Why does dynaham take over the whole
> processor, and SHAM (sliced HAM) doesn't? They seem to be pretty simular
> processes. Does this mean just sloppy programming on the part of NewTek?
> 
> John Sparks  | D.I.S.K. 24hrs 1200bps. Accessable via Starlink (Louisville KY)

I was mistaken, Dyna-Ham (DDHR - DigiView Dynamic Hi-Res) is supposed to
support 16 base colors and modify them from there but actually doesn't in
DigiView 4.0.  All my translations from 24 bit RGB files has been through
DigiView 4.0 which I've been told only allows for 8 base colors. This causes
the translations to lose alot more color than they should.  Since this mode is
so kludgy, I would have rather that it was not even available.  It just
postpones the development of a REAL graphics adapter for the Amiga.  Even
though there are a couple of frame-grabber's available for the Amiga, they are
not being supported by most of the major players (mainly EA with Dpaint III)
so they are not viable alternatives.

-- Bob
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