| 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). | 
| 1932 | + |  | 
| 1933 | + | Added ltview and ltpict Perl scripts contributed by Axel Jacobs, inspired | 
| 1934 | + | by Rob Guglielmetti. | 
| 1935 | + |  | 
| 1936 | + | Added header variables for NROWS, NCOLS and NCOMP to help standardize | 
| 1937 | + | matrix files.  This functionality has been incorporated into | 
| 1938 | + | rcollate, gendaymtx, and dctimestep. |