Steven E. Aukstakalnis (matrix++at++erc.msstate.edu)
Mon, 07 Oct 1996 10:06:25 -0500
Just prior to SIGGRAPH '96 in Nawlins, SGI shipped us a new
Max Impact w/ 1 250 MHZ IP22 Processor, 384 Mbytes RAM. Nice beefy
machine, except for one difficulty.
We (myself and about 6 SGI tech types) discovered that there is a bit of
a hardware problem when trying to use StereoGraphics LCD shutter glasses
to view models in stereo using utilities like ivview and SceneViewer.
Now try to follow me on this one....
Seems that when ivview tells the hardware to tell the emitter to tell
the glasses to open, say, the left eye LCD, the right eye opens, and
vica versa. The net result is that the stereo effect is screwed up. BUT,
if you put the glasses on upside down, things work just fine. This is
known as "psuedo stereo".
After digging for several hours, it was detirmined that a temporary work
around on this problem was to open the emitter box and move a jumper.
This in effect causes the emitter to tell the glasses to open the eye
opposite what the hardware has dictated.
Does anyone know if this difficulty has been addressed? Is there another
workaround or cure so that we don't have to keep switching the jumper
when we move the StereoGraphics unit between different flavors of SGI
machines?
Thank you in advance for your time and assistance in this matter.
--------------===============--------------===============----------
Steve Aukstakalnis
National Science Foundation
Engineering Research Center for Computational Field Simulation
2 Research Park Blvd
Starkville, MS 39759
601.325.4049
601.325.7692
matrix++at++erc.msstate.edu
http://www.erc.msstate.edu/~matrix
------------===============---------------================----------
=======================================================================
List Archives, FAQ, FTP: http://www.sgi.com/Technology/Performer/
Submissions: info-performer++at++sgi.com
Admin. requests: info-performer-request++at++sgi.com
This archive was generated by hypermail 2.0b2 on Mon Aug 10 1998 - 17:53:43 PDT