Discussion:
using stereo specs - 3D
(too old to reply)
Knut Roll-Lund
2008-05-02 18:34:39 UTC
Permalink
Raw Message
Hi,

I did aquire a set of stero specs (Asus) a while ago and have found out
how to setup my Indy for use with them. I am also ready to build the
amplifier I need for using them. My problem is that it uses an uncommon
connector 3 pin mini-din is somthing I don't think I have seen before so
I would need to order one.

But I also have an Indigo2 with high impact graphics as this has a db9
connector for the stereo signal. The problem there is that I don't know
how to set up stereo mode, the parameter for setmon. On the Indy I use
STR_TOP but on the Indigo2 this doesn't work.

What mode should I tell setmon to use for stereo view on an Indigo2 with
High Impact?

As the Indigo2 is the better system I hope I can use it with the stereo
specs. Though I'm not well versed with programming for Irix I'll
probably try to port one of my old 3D programs (have a version that is
anaglyph but it can only run on one specific family of graphcs card on a
pc).
--
Knut
(delete 'nogarbage.' for email)
Walter Roberson
2008-05-02 20:35:41 UTC
Permalink
Raw Message
Post by Knut Roll-Lund
But I also have an Indigo2 with high impact graphics as this has a db9
connector for the stereo signal. The problem there is that I don't know
how to set up stereo mode, the parameter for setmon. On the Indy I use
STR_TOP but on the Indigo2 this doesn't work.
man setmon documents that for all impact graphics, STR_RECT,
STR_BOT, and STR_TOP are supported. Look also in
/usr/gfx/ucode/MGRAS/vof/ for formats with 's' in their base name.
For example on the High Impact that I am using now,
1024x768_96s 1280x492_120s 616x492_140os (whatever that is!)
There are no 1280x1024 stereo formats there.
Knut Roll-Lund
2008-05-03 00:25:38 UTC
Permalink
Raw Message
Post by Walter Roberson
Post by Knut Roll-Lund
But I also have an Indigo2 with high impact graphics as this has a db9
connector for the stereo signal. The problem there is that I don't know
how to set up stereo mode, the parameter for setmon. On the Indy I use
STR_TOP but on the Indigo2 this doesn't work.
man setmon documents that for all impact graphics, STR_RECT,
STR_BOT, and STR_TOP are supported. Look also in
/usr/gfx/ucode/MGRAS/vof/ for formats with 's' in their base name.
For example on the High Impact that I am using now,
1024x768_96s 1280x492_120s 616x492_140os (whatever that is!)
There are no 1280x1024 stereo formats there.
Actually STR_TOP does change the screen mode but what I see is the top
repeated twice. The bottom repeats the top except for the stereo image
area where I can see the image differs (when stereo is enabled)

I'm logged in as root

ls /usr/gfx/ucode/MGRAS/vof/
shows I too have a 1280x492_120s.sdb etc but when I try it:
/usr/gfx/setmon -n 1280x492_120s
The result is:
no available formats match requested format '1280x492_120s'.

Did also try stereo as this should be equal to STR_RECT and I get:
no available formats match requested format '1280x492_120s'.
same as above.

I use the same CRT monitor (it is Silicon Graphics too and came with the
Indy) as I do with the Indy so it can't be the monitor.

Anyway I wonder if something is badly set up in Irix on the Indigo2 as
it doesn't recognize its own video modes.

Am I doing something wrong here?

I have upgraded these machines from older versions of Irix they came
with. The Indigo2 is 6.5.22 while the Indy is 6.5.19 (Installing 6.5.22
on the Indy failed and after restoring a backup with 6.5.19 I haven't
tried again.)
--
Knut
(delete 'nogarbage.' for email)
Erik Baigar
2008-06-19 04:31:44 UTC
Permalink
Raw Message
Post by Walter Roberson
man setmon documents that for all impact graphics, STR_RECT,
STR_BOT, and STR_TOP are supported. Look also in
/usr/gfx/ucode/MGRAS/vof/ for formats with 's' in their base name.
For example on the High Impact that I am using now,
1024x768_96s 1280x492_120s 616x492_140os (whatever that is!)
There are no 1280x1024 stereo formats there.
On my MXI it looks the same. I used the 1024x768_96s for
my homebuilt and for the original Crystal Eyes with success.
I used (as normal user) the Toolchest->System->DisplayProperties
to switch mode.

I think it is absolutely normal that using a video mode with _120
or _140 one will get the same image twice on the original SGI
monitors: These are often fixed frequency (normally 60Hz +/-
a small amount) or have a limited vertical range (e.g. up to 100Hz).
Thus they can not sync to that high vert frequencies and sync to
the half value. On my iyiama the same happens. But 1024x768_96s
works well.

BTW: The powerflip demo on my machine can do stereo with the -S
option and the game battalion in /usr/demos/IndiZone/ can do it,
too. But I am still looking for a version of perfly which utilizes
stereo and SpaceMouse.

Any additional 3D apps would be welcome...

Best regards,

Erik.

Loading...