--- ray/doc/notes/ReleaseNotes 2004/09/09 17:05:43 1.41 +++ ray/doc/notes/ReleaseNotes 2004/09/20 17:32:04 1.48 @@ -1299,3 +1299,31 @@ of the sky dome source in rt/srcdraw.c. Fixed problems with effective ray lenths computed for dielectric and BRTDfunc materials. This was most evident in breakup of holodeck views when VDISTANCE=True. + +Fixed rad so that 'scene' variable may consist only of inline commands. + +Fixed bug introduced in shadow caching routines where sources in the +middle of spheres were not illuminating properly. Thanks to Guilio +Antonutto for spotting this problem. + +Modified gensky behavior so if time is given with standard time zone +designation, any -m option is ignored. + +Added -n option to mkillum for (shared memory) parallel processing. + +Fixed a long-standing bug in parallel processing code that only +seemed to manifest with the new mkillum -n option, where rtrace +would deadlock upon termination. The reason it never showed up +before is because I always closed processes in the reverse order +of opening them in other programs. I went through and found similar +(potential) bugs in the rview device subprocess code and util/netproc.c. + +Corrected the normalization of the Gaussian reflectance model. This will +cause an increase in specularity for low-lying light sources. +Thanks to Don Walters of Boeing and Arne Duer of the Univ. of Innsbruck +for pointing out this error. The square root used for the two cosines +in the denominator of the normalization factor should not be present. +This was a serious mistake I made in the original model, which went +undiscovered (at least to my knowledge) for over a decade. I think +Bruce Walter of Cornell may have known about it, but I never heard +the details of his discovery.