[Radiance-general] Use Python to execute Radiance command

[Ji Zhang]

Dear Radiance experts,

Suppose you want to use Python to call rad command and render an image using
the following script:

################################
import os
rad_command = "rad -e -v vw1 /test.rif"
os.system(rad_command)
################################

Python will hang there until the rad command running in background is
finished. During this period, you can do nothing in the Python Shell...

So, is there a way to use Python to call the Terminal and "paste" the rad
command string into the Terminal and then run rad? In this way, Python is
freed from the rad rendering process once it's be activated in the Terminal.


Appreciate your advices!

(using Mac OS 10.6.7, Radiance 4, and Python 2.6.5)

Ji
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