What's new in Radiance 4.0:

March 19th, 2010

COMPATIBILITY CHANGE:
· Changed ".pic" extension to ".hdr" in all sources and documentation
· to improve interoperability with other software, since this has become
· the de facto extension for Radiance RGBE and XYZE pictures. Since file
· extensions were never more than a convention in Radiance, this does not
· affect operation, but may require the update of scripts, etc. written
· by others that assume the ".pic" suffix for Radiance output.
· Added -N option to objview to support multiprocessing.
· Improved sampling of circular sources (source, sphere, ring types) with
· quite a bit of help from David Geisler-Moroder.
· Added "rpict" and "rvu" variables to rad, and made these as well as
· the "oconv", "mkillum" and "pfilt" variables accept an alternate
· command path in each case. Change suggested by Lars Grobe based
· on similar Radzilla (radz) facility by Carsten Bauer.
· Fixed rad -v N specification to use actual view name if one.
· Fixed error in mkillum calculation where it neglected indirect
· source contributions from BTDF illum's.
· Added GMT and LATLONG header lines for Greenwich Mean Time and
· degrees North Latitude / East Longitude.
· Added gendaylit to distribution (finally).
· Added ability in vwright(1) to get view from command line arguments.
· Created genklemsamp(1) utility to generate samples suitable for
· BSDF-based annual calculations. This is the first Perl script to
· be added to Radiance. Hopefully, others will follow.
· Added klems_int.cal file to compute Klems bins for windows.
· Created genskyvec utility to sample a particular sky and
· evaluate average radiance over the standard Tregenza sky patches.
· Created dctimestep program to compute a set of sensor values or
· a combined image for a particular time using the daylight
· coefficient method.
· Created src/rt/rayfifo.c for first-in/first-out handling of
· multiprocessing by raypcalls.c.
· Added -n option to rtrace for executing on multiple cores
· using new rayfifo calls.