RPICT problem on Linux

radiance-general
1

I am recieving an error when running both RAD and RPICT on KNOPPIX Linux. This flavor of Linux is based on Debian Linux and is run on my computer via a boot CD. When running rpict or rad the following error message occurs:

rpict: system - cannot open header file "/usr/tmp/rtDjYQSQ": No such file or directory

I have run rpict on KNOPPIX many times and I have never recieved this error. Now all of a sudden, I cant run anything. This is why it is so frustrating because I can not ever diagnose what the problem is. To let you know, I have set the path of RAYPATH and this does not seem to help. I have run the same files on the Windows version of Radaince and I have recieved no such errors.

Thanks

Marcus D. Jacobs

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2

Marcus Jacobs wrote:

I am recieving an error when running both RAD and RPICT on KNOPPIX Linux.
This flavor of Linux is based on Debian Linux and is run on my computer via
a boot CD. When running rpict or rad the following error message occurs:

rpict: system - cannot open header file "/usr/tmp/rtDjYQSQ": No such file or
directory

I have run rpict on KNOPPIX many times and I have never recieved this error.
Now all of a sudden, I cant run anything. This is why it is so frustrating
because I can not ever diagnose what the problem is. To let you know, I have
set the path of RAYPATH and this does not seem to help. I have run the same
files on the Windows version of Radaince and I have recieved no such errors.

On unix systems, Radiance insists on storing its temporary
files in "/usr/tmp". Some Linux installations don't have this
directory, working with the more standards conforming "/var/tmp"
instead. Looks like you are currently running such a system.

I think that Radiance should be more flexible in this point, but
for the moment, it will be enough for you to create a symbolic
link pointing from "/usr/tmp" to "/var/tmp", like this:

$> ln -s /var/tmp /usr/tmp

Obviously, you need to be root do this. Once that link is in
place, your problem will go away.

-schorsch

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--
Georg Mischler -- simulations developer -- schorsch at schorsch com
+schorsch.com+ -- lighting design tools -- http://www.schorsch.com/