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Comparing ray/doc/notes/ReleaseNotes (file contents):
Revision 1.227 by greg, Sun Dec 8 18:59:53 2013 UTC vs.
Revision 1.233 by greg, Tue Feb 18 12:13:42 2014 UTC

# Line 1908 | Line 1908 | Switch to Perl versions of objview and objpict written
1908   Improved rendering speed of scenes with aliases by not entering new
1909   modifiers into table if they are the same as the previously defined
1910   modifier for that name.
1911 +
1912 + Made it so icalc and rcalc search RAYPATH directories for *.cal files
1913 + given on command line.  This simplifies script writing and makes these
1914 + utilities consistent with other tools in Radiance.
1915 +
1916 + Added triangulation routine to handle convex polygons in obj2mesh.
1917 +
1918 + ****** COMPATIBILITY CHANGE ********
1919 + Made backface visibility apply to all material types, including
1920 + transparent and translucent materials (except dielectric and interface).
1921 + This makes the option useful in cases where adjacent trans surfaces
1922 + are placed next to each other by a modeler that only understands
1923 + volumetric objects.
1924 +
1925 + Changed dctimestep so that output matrices (-n > 1) are preceded by a
1926 + header, and added support for float and double output formats with -o[fd].
1927 +
1928 + Introduced eplus_adduvf program to compute user view factors for EnergyPlus.
1929 +
1930 + Changed image-plane sampling in rpict to use Hilbert curve, which gives
1931 + less of a brushed/striped appearance to output pixels with -u- (default).

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