Andy and Greg did some tests and confirmed this bug has been fixed. The oddity I found with the test described below is not related to the bug. The oddity is simply due to spreading of the distribution during sampling. This is to be expected with the Klems representation. The lesson I've learned from this is that you are better off rebuilding the geometry from scratch rather than using a BSDF with-in a run of genBSDF. The lack of granularity in the Klems BSDF causes increasing noise when you iterate through successive Klems BSDF representations.
Good night and good luck. Tim On Wed, Sep 19, 2012 at 12:05 PM, Tim Perry <tim.v...@gmail.com> wrote: > Andy told me there was a bug in genBSDF when a BSDF is referenced in > the geometry. > > I'm curious if this has been fixed in the current HEAD. Also, can I > test to see if a version of genBSDF is affected by the bug: > 1) Run: genBSDF +forward +backward +geom foot > windowAssemblyTest.rad > genBSDFOut.xml > 2) Visually compare output from "genBSDFOut.xml" to "70_NoBlinds.xml" > > "windowAssemblyTest.rad" contains: > void BSDF testBSDF > 6 0 70_NoBlinds.xml 0 1 0 . > 0 > 0 > > testBSDF polygon testPane > 0 > 0 > 12 > 0 0 0 > 30 0 0 > 30 30 0 > 0 30 0 > > > > The base BSDF file is available at > http://www.shuman.org/~tperry/70_NoBlinds.xml It is meant to > represent 70% clear glass. > > Thanks for your time. > > Tim _______________________________________________ Radiance-dev mailing list Radiance-dev@radiance-online.org http://www.radiance-online.org/mailman/listinfo/radiance-dev
