[Radiance-general] RAYPATH problems

[Greg Ward]

Hi David,

It's difficult to say for certain, but you should know that altering your .bashrc file only affects the next open Terminal window.  It doesn't change the RAYPATH setting in the shell you already have running.

You should open a new Terminal window and enter "echo $RAYPATH" to make sure your environment setting is in effect.  If it is, and you can read the associated directory, then something else must be wrong.

Cheers,
-Greg

> From: David Gissen <dgissen at cca.edu>
> Date: May 16, 2017 9:37:36 AM PDT
> 
> Hello Everyone: I learned a little unix to be able to work with Radiance (for some upcoming projects that require me to reconstruct very specific lighting conditions), but I am running into some problems:
> 
> I followed the instructions for installing Radiance on Mac OSx (10.11.6)
> 
> created a file ~/.bashrc with the following arguments:
> export PATH=/usr/local/radiance/bin:$PATH
> export RAYPATH=.:/usr/local/radiance/lib
> 
> I followed Greg W's Radiance Ch. 1 tutorial and successfully modeled a sphere on a pedestal and in a room (exciting).
> 
> However, when I tried to do more sophisticated work (the Image Mapping tutorials by Axel Jacobs in the Radiance Cookbook), I received an error that "picture.cal" does not exist.
> 
> I ran "ls -la /usr/local/radiance/lib" and noticed that picture.cal was missing. After poking around, I discovered another path to /radiance/lib and then ran "ls -la /opt/rad4/radiance-5.0.a.12-Darwin/usr/local/radiance/lib" and found picture.cal as well as many other files not in the original directory path above. I copied picture.cal into the directory for the RAYPATH, but still received the error.
> 
> Anyway, I tried re-setting RAYPATH to "/opt/rad4/radiance-5.0.a.12-Darwin/usr/local/radiance/lib" (as well as =.:/opt/rad4/radiance-5.0.a.12-Darwin/usr/local/radiance/lib) but I still received an error that picture.cal was missing. I finally figured out a very kludgy way to get the missing files in radiance/lib to work (by copying them into the current working directory), but I want to get the RAYPATH working properly.
> 
> Does anyone have advice/help?
> 
> Thank you very much, David
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