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gm *nix forums beginner
Joined: 10 May 2005
Posts: 3
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Posted: Tue May 10, 2005 11:44 pm Post subject:
Re: V12 and antialiasing
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There's a reason that none of the demos utilize antialiasing. You can't
do full-scene antialiasing even on an Octane2 V12, if you want
real-time. We have a V12, and were counting on doing this, but SGI tech
support verified that, in fact, there's no hardware support for this,
because the feature depends on multisampling, which isn't there. For
our application, the accumulation buffer technique took rendering out
of the domain of real-time, so we didn't investigate that. |
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Philippe C.D. Robert *nix forums beginner
Joined: 11 May 2005
Posts: 3
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Posted: Wed May 11, 2005 5:05 am Post subject:
Re: V12 and antialiasing
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zolo wrote:
| Quote: | I was reading up on SGI V12 graphics, which has a hardware accumulation
buffer. According to the SGI OpenGL literature, the accumulation buffer
enables such niceties as full-scene antialiasing. However, it seems
that none of the Octane or Octane2 demos utilize antialiasing to any
noticeable degree. Is there a way to enable FSA for a given app, or
does it need to be specifically coded to utilize that feature? Are
there any free demos or apps that demonstrate the antialiasing
capabilities of the V12 hardware?
Octane2 V12/DCD
IRIX 6.5.24
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Just go and have a look at OpenGL Multipipse SDK... Run any of the
examples with a config using the FSAA compound.
HTH,
-Phil
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gm *nix forums beginner
Joined: 10 May 2005
Posts: 3
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Posted: Wed May 11, 2005 10:41 pm Post subject:
Re: V12 and antialiasing
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We did that on our dual-channel, dual-headed V12. It didn't work, and
SGI later confirmed that it wouldn't work. |
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Philippe C.D. Robert *nix forums beginner
Joined: 11 May 2005
Posts: 3
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Posted: Thu May 12, 2005 6:22 am Post subject:
Re: V12 and antialiasing
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gm wrote:
| Quote: | We did that on our dual-channel, dual-headed V12. It didn't work, and
SGI later confirmed that it wouldn't work.
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Uhm, unless I am now totally wrong it should work. In the worst case
using GL blending instead of using the accum buffer, but FSAA should work... |
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gm *nix forums beginner
Joined: 10 May 2005
Posts: 3
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Posted: Thu May 12, 2005 11:27 pm Post subject:
Re: V12 and antialiasing
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It's possible that some kind of blending is available on the Octane2
V12, but the V12 does not have multisampling hardware. And our
application uses Performer for most of the rendering. Both our V12 and
Performer ignored all attempts to enable multisampling using FSAA
settings, and SGI confirmed that this was because the V12 has no
multisampling hardware capability. They also confirmed that for our
application, no real-time full-scene anti-aliasing was possible with
Performer on the V12. |
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zolo *nix forums beginner
Joined: 13 May 2005
Posts: 19
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Posted: Fri May 13, 2005 6:09 pm Post subject:
Re: V12 and antialiasing
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gm wrote:
| Quote: | It's possible that some kind of blending is available on the Octane2
V12, but the V12 does not have multisampling hardware. And our
application uses Performer for most of the rendering. Both our V12 and
Performer ignored all attempts to enable multisampling using FSAA
settings, and SGI confirmed that this was because the V12 has no
multisampling hardware capability. They also confirmed that for our
application, no real-time full-scene anti-aliasing was possible with
Performer on the V12.
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Given this fact, what benefits are there to using the
hardware vs. software accumulation buffer setting on V12?
-zolo |
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Philippe C.D. Robert *nix forums beginner
Joined: 11 May 2005
Posts: 3
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Posted: Wed May 18, 2005 5:00 am Post subject:
Re: V12 and antialiasing
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gm wrote:
| Quote: | It's possible that some kind of blending is available on the Octane2
V12, but the V12 does not have multisampling hardware. And our
application uses Performer for most of the rendering. Both our V12 and
Performer ignored all attempts to enable multisampling using FSAA
settings, and SGI confirmed that this was because the V12 has no
multisampling hardware capability. They also confirmed that for our
application, no real-time full-scene anti-aliasing was possible with
Performer on the V12.
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Uhm ... I was talking about OpenGL Multipipe SDK (MPK) and *not*
Performer! This is a different API. MPK does FSAA on its own, using HW
acceleration, if available.
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Steve *nix forums Guru
Joined: 20 Feb 2005
Posts: 600
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Posted: Sun May 29, 2005 2:20 pm Post subject:
Re: Miranda Vivo
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On 2005-04-06 22:31:46 +0100, "S.Chang" <shu.chang@mapson.ieee.org> said:
| Quote: | Khalid Schofield wrote:
this sounds interesting. Digital video on the O2 is always nice :)
what sorts of devices could I hook up to this interface?
The Analog jacks on the O2 are getting less and less used on my O2 as I'm
moving towards digital sources.
CCIR 601 serial digital video I/O with *BNC* connectors.
I was quoted 750 pounds + VAT for one.
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I have one of these in my bits box!
Is it any use?
I was looking for a solution to get TV off my UK Sky+ PVR via scart,
could I use this with a second user O2 or maybe Octane? Or even Indigo2
Solid Impact - the only SGI I still have....
There are easier ways I know but Steve's mind works in mysterious ways!
Steve
PS I still have the O2 A/V unit and camera too. |
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chrisv *nix forums Guru Wannabe
Joined: 24 Mar 2005
Posts: 124
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Posted: Thu Jun 02, 2005 6:35 pm Post subject:
Re: ATI persues future Xbox contracts
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<AGM-65> wrote:
Crossposting a$$hole.
X-Complaints-To: abuse@comcast.net
X-DMCA-Complaints-To: dmca@comcast.net
Done. |
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Guest
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Posted: Sun Jun 12, 2005 7:34 pm Post subject:
Re: Tezro pricing
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I'd be happy with a secondhand Fuel... |
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thegoldbug *nix forums beginner
Joined: 23 Jun 2005
Posts: 11
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Posted: Mon Jun 13, 2005 2:31 am Post subject:
Re: Tezro pricing
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<mr_peter_stevenson@hotmail.com> wrote in message
news:1118612083.574047.129810@g49g2000cwa.googlegroups.com...
| Quote: | I'd be happy with a secondhand Fuel...
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http://www.sgi.com/products/remarketed/weekly_specials.html
SGI is listing two Tezro's and a Fuel system. Very pricey but hey that's
SGI.
thegoldbug |
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John-Paul Stewart *nix forums Guru
Joined: 20 Feb 2005
Posts: 497
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Posted: Mon Jun 13, 2005 12:50 pm Post subject:
Re: Tezro pricing
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thegoldbug wrote:
There's a couple of Fuels listed on this page, too:
http://www.get.com/specials.html |
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markbire23 *nix forums beginner
Joined: 05 Nov 2005
Posts: 2
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Posted: Sat Nov 05, 2005 5:11 pm Post subject:
RE: Product brochures
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My name is Mark Brennan, I am a systems engineer with Fujitsu in
Ireland and I have a request I am looking for some help with.
My request is some what strange to say the least.
Since I joined Wang Computer in 1988 I have been collecting Product
Brochures on various computer systems it started of with Wang Vs server
systems.
For the last few years I have been trying to collect old
product/info/fact/marketing brochures on various computer systems with
very little luck, as in the future I hope to set-up a web site with
details and overviews of them. I have managed to collect some
information on,
DG/HP/Wang/Netframe/NCR/Tandem/DEC/Sequent/SGI/Siemens-Fujitsu/Pyramid/Apollo/Cray/KSR/Ncube/ICL/Compaq
etc, I was wondering whether or not you may have or know where I maybe
able to get my hands on any old product brochures/fact sheets etc on
any of the SGI systems/servers, I know that my request is at best
strange but any help would be great.
Regard and thanks again markb. |
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Moss Margret *nix forums beginner
Joined: 16 Jan 2006
Posts: 1
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Posted: Mon Jan 16, 2006 3:01 am Post subject:
Re:
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Content-Transfer-Encoding: quoted-printable
Champion
Prince
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Content-Transfer-Encoding: quoted-printable
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<STYLE></STYLE>
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<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2><A = |
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Wim Cossement *nix forums Guru Wannabe
Joined: 24 Feb 2005
Posts: 173
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Posted: Thu Feb 23, 2006 1:48 pm Post subject:
Re: Pinout for Older Dialbox/Buttons Cable
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Thomas Jahns wrote:
| Quote: | Adam Smith <adamsmith@econ.com> writes:
Does any one have the cables or know what is the pinout on the old
cables [i.e old dials on Indigo2], DB9F to DB9F, interfacing the
buttons/dialbox to the serial adapter hanging off the CPU.
Different versions have different cables IIRC. Could you please post the
SGI part number of the button box/dials you have in mind?
Thomas Jahns
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Mine does not have any partnumber on it, so...
Wim |
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