Professional graphics card

IBM workstations/servers/mainframes and operating systems (AIX, OS/2, etc.)
Forum rules
Any posts concerning pirated software or offering to buy/sell/trade commercial software are subject to removal.
rooprob
Posts: 68
Joined: Wed Sep 01, 2010 7:20 am

Professional graphics card

Unread postby rooprob » Tue Apr 21, 2015 1:56 am

Stumbled upon this, thought it would bring a wry smile to those rocking an 80s vintage silicon graphics.

http://www.seasip.info/VintagePC/pgc.html
:O2: r12 400 mapleleaf :Indigo2IMP: r10 195 IRIS :Cube: NeXT
New Zealand

robespierre
Posts: 1551
Joined: Mon Sep 12, 2011 2:28 pm
Location: Boston

Re: Professional graphics card

Unread postby robespierre » Tue Apr 21, 2015 6:20 pm

You aren't kidding! Flat colored triangles and rectangles, and solid color lines only! It has a pattern capability, but no direct support for line stippling.

the IRIS did hardware lighting, shaded polys, depth cueing, triangle strips, and retained mode. I believe the PGA was only really a solution for CAD applications, whereas the IRIS was much better for all sorts of visualization.
:PI: :O2: :Indigo2IMP: :Indigo2IMP:

User avatar
kjaer
Posts: 424
Joined: Wed May 07, 2008 7:47 pm
Location: Seattle, WA
Contact:

Re: Professional graphics card

Unread postby kjaer » Wed Apr 22, 2015 10:27 am

The PGC wasn't much of a solution for anything. Too expensive, too few pixels, way, way, WAY too slow. I'd read all that before, but was still surprised the first time I actually saw one working by just... how... slow... it was. It didn't make any sense, not even in '85.
:OnyxR: :IRIS3130: :IRIS2400: :Onyx: :ChallengeL: :4D220VGX: :Indigo: :Octane: :Cube: :Indigo2IMP: :Indigo2: :Indy:

rooprob
Posts: 68
Joined: Wed Sep 01, 2010 7:20 am

Re: Professional graphics card

Unread postby rooprob » Mon Apr 27, 2015 4:49 pm

To continue the amusement:

These guys share how they did 1k colours on CGA

http://www.reenigne.org/blog/1k-colours ... -its-done/

http://trixter.oldskool.org/2015/04/07/ ... emulators/
:O2: r12 400 mapleleaf :Indigo2IMP: r10 195 IRIS :Cube: NeXT
New Zealand

User avatar
bigD
Posts: 466
Joined: Tue Jun 17, 2008 8:38 pm
Location: Philadelphia

Re: Professional graphics card

Unread postby bigD » Mon Apr 27, 2015 8:11 pm

^^^ that is friggin' hardcore. Amazing work.
:Onyx2: :Indigo2: :O3x0:

User avatar
guardian452
Donor
Donor
Posts: 3429
Joined: Tue Aug 21, 2007 10:12 pm
Location: United States
Contact:

Re: Professional graphics card

Unread postby guardian452 » Tue Apr 28, 2015 5:21 am

I saw the 8088MPH demo a few weeks ago, and didn't appreciate the 1K colo(u)rs because (a) I do not care about the CGA or whatever old dinosaur they were using; and (b) if it was such a brilliant hack I surely wouldn't have been able to understand it.

Demoscene stuff IMO is only a few steps above overclocking/synthetic benchmarking on the futility scale... Although I was fascinated by it when I was a kid. :D (I think the shininess had worn off by the time I was 14-15)

However, after reading the description, not only can I see it's brilliance, I can actually understand it! (Kinda makes you wonder why IBM didn't have a high-color CGA mode like this, back in the day...)


NOW we just need an emulator that it will run in :lol:

User avatar
bigD
Posts: 466
Joined: Tue Jun 17, 2008 8:38 pm
Location: Philadelphia

Re: Professional graphics card

Unread postby bigD » Tue Apr 28, 2015 7:53 am

guardian452 wrote:However, after reading the description, not only can I see it's brilliance, I can actually understand it! (Kinda makes you wonder why IBM didn't have a high-color CGA mode like this, back in the day...)


I was never into the demo scene either - that seemed to exist more on the Commodore/Amiga side, and I grew up on PCs and Macs. But I love the idea of squeezing every ounce of capability out of vintage hardware, and doing things the designers never imagined possible. Especially when you find super creative ways to do so, as these guys did.

It's completely futile of course, but then again as an SGI enthusiast I won't throw stones. :mrgreen:
:Onyx2: :Indigo2: :O3x0:


Return to “IBM”

Who is online

Users browsing this forum: No registered users and 1 guest