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Re: [SCIRUN-USERS] scirun apps in stereo?


Chronological Thread 
  • From: Jack Gundrum <jsg3@psu.edu>
  • To: Richard Coffey <richardc@phys.washington.edu>
  • Cc: scirun-users@sci.utah.edu
  • Subject: Re: [SCIRUN-USERS] scirun apps in stereo?
  • Date: Thu, 06 Sep 2007 11:25:24 -0400
Richard,
It sounds like this may be the problem since I never added a modeline in our new lab, thanks for the webpage those things are invaluable.


Coffey wrote:
Hi,

I just tested SCIRun on one of the desktops here at the UW. We needed to configure a modeline specific for our display. Here's a great place to generate modelines:

http://xtiming.sourceforge.net/cgi-bin/xtiming.pl

I got back:

Modeline "1280x1024@96" 228.54 1280 1312 2176 2208 1024 1042 1058 1076

vi'ed /etc/X11/xorg.conf and added this to the Monitor section of the file

Then I issued the command:

nvidia-xconfig --mode=1280x1024@96 --stereo=3

Restarted the X server... and voila! SCIRun in 3D. (I did the basic ReadField->ShowField->RenderScene tutorial to test.)

Now, what I couldn't get working was the BioTensor demo. The box was greyed out even though SCIRun was aware of the card in stereo mode. Marty, how do I bring up the SCIRun dataflow network in the Power Apps? It seems like I remember that the RenderScene UI will work when the Power App stereo button doesn't.

Best,
R.C.

---
Richard Coffey, Director of IT
Physics and Astronomy, University of Washington
Rm. B215 - 206-543-7751
"It's the Summer of Love and Research, 2007!"





On Sep 5, 2007, at 12:25 PM, Martin Cole wrote:

You want Option "Stereo" "3"

--mc

On Wed, 2007-09-05 at 14:07 -0400, Jack Gundrum wrote:
Hi Chems,

The Stereo option shows up in VMD for example but I did have to edit the
code for ParaView and change the default stereo option from
red-green to "crystal eyes stereo"  to get the frame sequential stereo
to  work.

What is the default stereo mode for SciRun??? My graphics driver
is configured for stereo and it is working - see config file below

-------------------------------------------------------------------------------------------------------------------

nvidia-xconfig:  version 1.0  (buildmeister@builder26)  Mon Feb 26
23:37:58 PST 2007
  The NVIDIA X Configuration Tool.

This program is used to manipulate X configuration files, specifically
to enable
  NVIDIA X driver functionality.

  Copyright (C) 2005 NVIDIA Corporation.

[root@vislab1 ~]# nvidia-xconfig -t

Using X configuration file: "/etc/X11/xorg.conf".

    ServerLayout "Default Layout"
        |
        |--> Screen "Screen0"
        |       |
        |       |--> Monitor "Monitor0"
        |       |       |
        |       |       |--> VendorName "Unknown"
        |       |       |--> ModelName "Unknown"
        |       |       |--> HorizSync
        |       |       |--> VertRefresh
        |       |       |--> Option "DPMS"
        |       |
        |       |--> Device "Videocard0"
        |       |       |--> Driver "nvidia"
        |       |       |--> VendorName "Videocard Vendor"
| | |--> BoardName "nVidia Corporation G70GL [Quadro
FX4500]"
        |       |
        |       |--> Option "TwinView" "true"
        |       |--> Option "TwinViewOrientation" "Clone"
        |       |--> Option "MetaModes" "1400x1050,1400x1050;
1280x1024,1280x1024"
        |       |--> Option "ConnectedMonitor" "dfp,dfp"
        |       |--> Option "Stereo" "4"
        |       |--> DefaultColorDepth 24
        |       |--> Modes "1400x1050; 1280x1024"
        |
        |--> InputDevice "Mouse0"
        |       |
        |       |--> Driver "mouse"
        |       |--> Option "Protocol" "auto"
        |       |--> Option "Device" "/dev/input/mice"
        |       |--> Option "Emulate3Buttons" "no"
        |       |--> Option "ZAxisMapping" "4 5"
        |       |--> Option "CorePointer"
        |
        |--> InputDevice "Keyboard0"
        |       |
        |       |--> Driver "kbd"
        |       |--> Option "XkbModel" "pc105"
        |       |--> Option "XkbLayout" "us"
        |       |--> Option "CoreKeyboard"
        |


    Extensions
        |
        |--> Option "Composite" "Disable"







 Touati wrote:
HI Jack,

I've been trying to understand this better myself.  I've had some
success with stereo video in SCIRun using an xorg.conf file that was
provided to me by a vendor.  Once the settings are configured
correctly for your hardware, the stereo check box should be available
in Viewer Options.

I think the important parts are the Modeline settings:

  Modeline "1400x1050_96_GTF"  205.45  1400 1512 1664 1928  1050 1051
1054 1110  -HSync +Vsync

and the Monitor definition:

Section "Monitor"
        Identifier   "Monitor[0]"
        VendorName   "Monitor Vendor"
        ModelName    "DP8000"
        HorizSync    25.0 - 108.0
        VertRefresh  50.0 - 256.0

here is a link to the complete file:

http://solar.sci.utah.edu/software/SCIRun/stereo/xorg.conf.txt

I wish I could be more help.  Hope this helps you get started towards
a solution.



Regards,

//cheMs
-----------------------------------------------------------------------
Chems Touati
Producer and Motion Graphics Designer
Visual Supercomputing Center
chems@sci.utah.edu <mailto:chems@sci.utah.edu>
801.581.4772

SCI Institute, University of Utah
http://www.sci.utah.edu





On Sep 4, 2007, at 12:25 PM, Jack Gundrum wrote:

Hi,

I am trying to use SciRun in stereo but the radio button under Viewer
Options to turn on stereo it is grayed out.
I use frame sequential stereo for other apps on my machine and would
like to know how to run SciRun in stereo?

I am running Redhat EL 5 and my graphics card is an FX 4500 which I
have set to run in twinview clonemode stereo. -any ideas would be
helpfull
-thanks.

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