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- Path: agora.stm.it!news
- From: r.giangualano@agora.stm.it (Riccardo Giangualano)
- Newsgroups: comp.sys.amiga.misc
- Subject: Re: AGA info needed
- Date: 7 Jan 1996 00:48:48 GMT
- Organization: Agora' Telematica - Italian BBS and Internet Provider
- Message-ID: <6595.6580T36T2426@agora.stm.it>
- References: <4cib9e$jpk@nntp.interaccess.com>
- NNTP-Posting-Host: agora.stm.it
- X-Newsreader: THOR 2.22 (Amiga;TCP/IP)
-
-
- On 05-Gen-96 06:00:30, Mike Hartigan wrote...
-
- >Ok, here's a question that has been asked before, but the answers
- >always seemed to relate to specific hardware solutions. I'm looking
- >for more generic answers which I can then use to (hopefully) make
- >an informed choice.
- >With regard to AGA/24-bit/SVGA/etc., what does it mean when an
- >application says that it requires AGA? Let's, for the moment,
- >forget games (I mean the hardware-hacking, hence, hardware-specific
- >type -- of course, maybe I'm over-generalizing here). Does this
- >mean that it specifically requires the AGA chipset and, therefore,
- >will only run on A1200 and A4000(T)? or has AGA, in this context,
- >taken on a more generic, though less accurate, meaning referring
- >strictly to the number of colors and resolutions supported? I'm
- >hoping that the latter is the case, since that would answer most of
- >my other questions.
-
- For productivity apps it means that the programmer support the
- increased palette and resolution available with AGA.
- So, yes, in this case your idea is correct.
- (This is a generalization, though).
-
- >My needs (lusts) are for an increase in screen resolution for
- >productivity software (FinalWriter will then provide an acceptable
- >screen font), and increased color palette (an absolute necessity
- >for web-browsers, and also because things just look nicer). I'm
- >currently using an ECS A3000 at 720 x 480 x 3 (8 colors). 16
- >colors looks nicer, but the penalty in performance makes it
- >impractical....
- >DBLNTSC and DPLPAL interlaced (744 x 960 >(or 1024) x 2) are nice
- >resolutions.... And they're s-l-o-w. (Yes, ECS does support all
- >of the above resolutions - so don't go dredging up any old threads!)
- >Sliding screens are nice to show my friends, but that's pretty low
- >on my list of "must have" features.
-
- I also have an A3000 and i can assure you that a graphic card
- will breath new life in productivity software (and in Workbench too).
- No more bandwidth restrictions...you can have all screens in 256 colors.
- Even my low-end GVP Spectrum has made me forget of ECS/DBLPAL etc...
-
- >In general, will the current crop of graphics boards provide the
- >results I want with productivity (non-game) software?
-
- In general, yes.
-
- >To what extent will the current crop of graphics boards provide
- >similar results with game software? (or is this question too
- >broad?)
-
- In general, no. Only recently some games begin to support graphic
- cards...
-
- >If the software uses the display database, is that a good clue to the
- >answers to the above questions?
-
- Yes. Support of display database ~= support of graphic board.
-
- >Is the speed of the display significantly affected by the size of
- >the palette? or this a chunky-pixel issue?
-
- No.
-
- >How do the currently available boards perform with respect to
- >increased resolutions? Do they exhibit the same behavior as ECS in
- >this area? Is this even an issue with the current SVGA chips?
-
- Yes, but to a lesser extent. (ie. only with low-end cards).
-
- >I'm assuming that all graphics boards are not created equal. With
- >that in mind, how do I determine if a given board will address my
- >needs? Maybe I'm a cynic, but I'd rather not talk to a dealer about
- >this, since his judgement is affected by his inventory/margin/etc.
- >(no, I'm not bashing dealers, or questioning their motives. In
- >fact, I have every intention of buying it from a local dealer. I
- >would just prefer for me to tell him what I want, instead of the
- >other way around).
-
- On the Amiga the choice is limited...
- Based on your budget you may hunt for a used Spectrum, or, on the
- other side, for the CyberVision (Amiga's high end).
- Rest assured again, even with the low-choice you'll see a great
- benefit in graphics speed. With the CyberVision you'll go with
- the greatest speed available at moment (until the CyberVisionII, that's it).
- Regarding the previous point, the CyberVision perform at the same
- speed in 8 and 16 bits... performance hits appears only in 24 bits.
- A low-end like the Spectrum or the Picasso perform very well in 8 bits,
- so-so in 16 bits (like ECS 8/16 colors in hires) and just slow in 24 bits.
- Note that the above is referred to an A3000 machine.
-
- >Do any of the currently available boards appear to be becoming
- >dominant in terms of available drivers, etc. In other words, does a
- >de facto standard seem to be emerging?
-
- The de facto standard is CyberGraphX... a set of libraries and drivers
- providing stable Workbench emulation for most cards (Spectrum, Picasso,
- PiccoloSD64, Retina Z3, CyberVision in a low-to-high performance scale).
-
- >What, if anything, has AmiTech said on this issue? Have they
- >embraced any of the current display "standards"? Or are they going
- >to defer to the third-party solutions? (that might be a nice move).
-
- AT recognize the need for retargetable graphics on the Amiga...
- It appears that the de-facto standard (CyberGFX) will be the choice,
- as the basis for what will be provided with future (non-680X0) Amigas...
- mainly for a matter of time (AT's shortgage of), i think.
-
- >What about Zorro III/Buster upgrade?
-
- Nearly useless for graphic cards.
-
- >Maybe this is a big question, but what would I be missing with a
- >third-party graphics board vs AGA in terms of graphics (besides the
- >sliding screen trick)? In terms of anything else?
-
- You'll be missing AGA slowness...
- With the CyberGFX software even the sliding screens are supported.
- In terms of anything else, forget (nearly) gaming...
-
- >Should I just buy a Pentium system and solve ALL of my problems in
- >one fell swoop? (what is a "fell swoop", and why do I need only
- >one?)
-
- Buying a Pentium easily solves all the problems indicated here, even
- in one fell swoop (hmmm, must admit i don't know what is a "feel swoop":)
- I have the feeling that other, different, problems will surface...
- like dealing with Micro$oft applications or missing the Amiga community :)
-
- >Some of these questions would probably fit nicely in a FAQ. (Maybe
- >someone is up to the task?)
-
- Hopefully.
-
- >Thanks, in advance, for any insight.
-
- You're welcome.
- Other insights on these questions are welcomed as well.
- Excuse me for any grammar/spelling error.
-
- >--
- > ///
- >+-------------------------------------------///-------------------------+
- >+ | /// Mike Hartigan |
- >+ Was I late, or was the bus early? |\\\ /// hartigan@interaccess.com |
- >+ | \\\/// |
- >+--------------------------------------\\\/-----------------------------+
-
-
-
- --
- Riccardo Giangualano
- r.giangualano@agora.stm.it
-
-