I’ve just updated some code (or rather replaced some) in RADex, which now should support 2.25, 2.26, and 2.27 as well as most tuhopuu builds. A huge thanks goes out to theeth (and eeshlo) for allowing me to use the vector functions module with the script. Now, the old matrix.py and pntvec.py modules are no longer necessary.
Also, a new version of Radiance source code is available, for anyone who can compile it (sorry Windows folks, no new DeskRad yet).
Follow this link for download links and tutorial:
http://mywebpages.comcast.net/rayae1/tutorial.htm
-OR- get the above page as a .pdf for printing:
http://mywebpages.comcast.net/rayae1/tutorial.pdf