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IRIS
EXPLORERTM
Frequently Asked Technical Questions |
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| Sun
Sparc / Ultra Specific Questions |
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The colour map used by DisplayImg or the Credits is corrupted so
the image colours are incorrect. [answer here]
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The Render module crashes whenever it is loaded into a map. [answer
here]
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Some printed images and snapshots from the Render module are rendered
incorrectly. [answer here]
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The pull-down menus in the Render module appear in black. [answer
here]
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| Question 1 |
The colour map used by DisplayImg or the Credits is corrupted
so the image colours are incorrect. |
| Answer 1 |
This problem occurs on certain 8-bit graphics cards. It can be resolved
by setting the following environment variable before starting explorer:
setenv CX_XMCW_VISUAL DEFAULT
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| Question 2 |
The Render module crashes whenever it is loaded into a map. |
| Answer 2 |
There are two possibilities here.
1. Solaris OpenGL patch number 105049-02 will cause the Render module
to crash. To check to see if this patch has been installed on your machine
type the following:
Showrev -p | grep 105049-02
Alternatively check to see if the directory /var/sadm/patch/105049-02 exists.
You will need to remove this patch if the Render module is to function
correctly. The patch can be removed by logging in as root as typing the
following commands from a shell:
cd /var/sadm/patch/105049-02
./backoutpatch 105049-02
2. Note that to run IRIS Explorer graphics, an OpenGL compliant graphics
card is required [for releases of IRIS Explorer prior to 4.0].
It has been noted that on certain Sun UltraSparc 5 machines
with 8-bit graphics there are no OpenGL drivers. The current recommendation
is a replacement graphics card that supports OpenGL. Contact your
nearest IRIS Explorer Center
or Sun representative for further details.
On newer releases of IRIS Explorer (Release 4.0 and later) a number
of modules that use OpenGL for rendering are also available in
versions that render via X using the Mesa graphics library . These
Mesa-based modules will render on any X display. Setting the CXGLTYPE
environment variable determines which version of these modules IRIS
Explorer will use, e.g. (from the C shell):
setenv CXGLTYPE mesagl
See your Installer's Note for more details. |
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| Question 3 |
Some printed images and snapshots from the Render module are
rendered incorrectly. |
| Answer 3 |
This is caused when certain graphics cards are used with Open GL 1.1.
This problem is corrected in Open GL 1.1.1. Please contact your
nearest IRIS Explorer Center
for further information. |
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| Question 4 |
The pull-down menus in the Render module appear in black. |
| Answer 4 |
Certain graphics cards cause the Render's pull-down menus appear black.
This problem can be resolved by setting the following environment variable
before starting Explorer:
% setenv CX_RENDER_NO_OVERLAYS
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