--- ray/doc/notes/ReleaseNotes	2021/03/27 17:50:18	1.389
+++ ray/doc/notes/ReleaseNotes	2021/04/05 19:56:18	1.390
@@ -2429,3 +2429,6 @@ Added robjutil +T option to triangulate all faces in .
 Altered BSDF library to have both front and back diffuse transmittance
 values, which can be different.  This was necessary to avoid issues
 caused by measurement and modeling discrepancies.
+
+Added pabopto2bsdf -g option to cull near-grazing scattering to avoid
+issues with noise and negative values.