[Radiance-general] genBSDF and Klems output

[Gregory J. Ward]

Dear Advanced Users,

If you have been applying genBSDF to create Klems files using any of the HEAD releases since March 2015, including the latest official release (5.0), then your XML files may contain significant inaccuracies.  David Geisler-Moroder and Christian Knoflach discovered an issue with the solid angle correction in genBSDF (actually in wrapBSDF) that was introduced back in spring of 2015.

This issue has been corrected in the latest HEAD, but we have not made an official release yet with the updated version.  If you are relying on genBSDF or any XML files generated by it with the Klems distribution, you should probably regenerate them using the latest HEAD version.

This problem does not affect tensor tree XML files generated by genBSDF, nor Klems files created using bsdf2klems.

Best,
-Greg