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Comparing ray/doc/notes/ReleaseNotes (file contents):
Revision 1.171 by greg, Fri Jun 18 21:22:49 2010 UTC vs.
Revision 1.245 by greg, Thu Aug 21 19:38:23 2014 UTC

# Line 1720 | Line 1720 | Added -n option to rtrace for executing on multiple co
1720   using new rayfifo calls.
1721  
1722   =====================
1723 < Version 4.1
1723 > Version 4.1 (Released 11/04/2011)
1724  
1725   Changed ranimate behavior so remote login under a different user
1726   doesn't necessarily require the presence of the originating user's
# Line 1736 | Line 1736 | Updated SCons build system for MINGW compilation, than
1736   Kohler.
1737  
1738   Added -u option to rlam for unbuffered output.
1739 +
1740 + Modified dctimestep to accept sky vector and daylight coefficient matrix
1741 + or list of images to sum together, as suggested by Andy McNeil.
1742 +
1743 + Created genBSDF script to generate BSDF in Windows XML format.
1744 +
1745 + Modified mkillum to accept detailed geometry from BSDF XML files.
1746 +
1747 + Altered obj2rad to ignore zero normals (thanks to Jack de Valpine for
1748 + suggestions and help).
1749 +
1750 + Fixed bug in genklemsamp that caused non-uniform sampling over surfaces.
1751 +
1752 + Fixed bugs in rhoptimize and rhcopy for 64-bit compilation.
1753 +
1754 + Made a change to avoid problem using gcc --fast-math compile option.
1755 +
1756 + ****** COMPATIBILITY CHANGE ********
1757 + Changed behavior of rtrace and rtcontrib so that every scanline is
1758 + not flushed when both -x and -y are set.  This avoids flush delays
1759 + in rtcontrib for large numbers of output files and delays while
1760 + rendering images using rtrace with the -n option.
1761 +
1762 + Added ability for rsensor to output ray origins and directions
1763 + rather than actually loading octree and computing sensor value.
1764 +
1765 + Fixed old bug in obj2rad where it would stop processing and
1766 + report a syntax error if the "void" type is used in the map file.
1767 +
1768 + Updated reflection model according to EGSR 2010 paper by David
1769 + Geisler-Moroder and Arne Duer.
1770 +
1771 + Replaced C-shell version of falsecolor with Perl script written
1772 + by Axel Jacobs.
1773 +
1774 + ****** COMPATIBILITY CHANGE ********
1775 + Changed -sj (specular jitter) option to something called specular
1776 + sampling (-ss), which if set less than 1 has the same behavior as
1777 + the old -sj, but when set greater than 1, spawns multiple ray
1778 + samples from semi-specular surfaces.
1779 +
1780 + Fixed bug noticed by Randolph Fritz that caused ambient sync errors.
1781 +
1782 + Fixed bug in findglare for reading picture files under Windows.
1783 +
1784 + Added options to pvalue to note other color spaces on reverse conversion.
1785 + Thanks to Erich Philips for the feature request.
1786 +
1787 + Added BSDF data-driven material type with full sampling support.
1788 +
1789 + Added BRDF calculations to genBSDF.
1790 +
1791 + Bug fixes in rsensor thanks to help from David Geisler-Moroder.
1792 +
1793 + Added variable-resolution BSDF support in renderers and genBSDF.
1794 +
1795 + Created pkgBSDF program to extract BSDF geometry and put it
1796 + together with surface description suitable for inclusion in
1797 + a Radiance scene.
1798 +
1799 + Muted warning for "no light sources found" when there is at least
1800 + one glow object and interreflections are on (-ab > 0).
1801 +
1802 + Fixed long-standing bug that caused underestimation of reflection
1803 + when specular component was below -st threshold in non-metals.
1804 +
1805 + Checked in cross-platform cmake build system created by Bill Hoffman
1806 + of KitWare and sponsored by NREL.  This includes a qt-based
1807 + driver for rvu, which is built in the new subdirectory src/qtrvu.
1808 +
1809 + =====================
1810 + Version 4.2 (Release date 7/31/2014)
1811 +
1812 + Axel Jacobs added -cp and -palettes options to falsecolor.
1813 +
1814 + Fixed bug in matrix output of genBSDF introduced shortly before 4.1 release.
1815 +
1816 + Made rvu more responsive in multi-processing mode when changing parameters.
1817 + Explicit "new" command not needed to show changes, because it goes back
1818 + to "immediate mode" once something is changed.  Processing will be slow
1819 + but response time quick until next "new" command.
1820 +
1821 + Fixed major bug in transmitting proxy material sampling.
1822 +
1823 + Patched cmake build tools (changes by Zack Galbreath).
1824 +
1825 + Removed requirement for pflip -h to be given input file (can pipe from stdin).
1826 +
1827 + Added "Number of processes" slider to trad "Action" pane to control rad -N
1828 + option for rvu and batch rendering.
1829 +
1830 + Added -c option to vwrays to repeat pixels for rtcontrib.
1831 +
1832 + Reworked rtcontrib program and renamed to rcontrib.  New version runs much
1833 + faster, especially on multiprocessor systems, and doesn't require as much
1834 + memory.  No longer calls rtrace; instead does all the work itself.
1835 +
1836 + Added -d option to genskyvec to produce direct-only (sun no sky) vector.
1837 +
1838 + Added Ashikhmin-Shirley anisotropic BRDF model (ashik2) with help
1839 + from Nicolas Boneel.
1840 +
1841 + Added Ruby rewrite of objview.csh by Rob Guglielmetti.
1842 +
1843 + Fixed bug in reciprocity for tensor tree BTDF representations.  Thanks
1844 + to Andy McNeil for identifying the problem.
1845 +
1846 + Added MNAME and ZNAME variables to ranimove for debugging & testing.
1847 +
1848 + Created pmblur2 command to take motion and depth buffers from ranimove
1849 + to compute a better motion blur.
1850 +
1851 + ****** COMPATIBILITY CHANGE ********
1852 + Changed BSDF routines to use updated/corrected XML specification and
1853 + removed depracated BSDF support from mkillum.
1854 +
1855 + Fixed behavior of i/o flushing in rcontrib with -c > 1 (averaging).  Thanks
1856 + to Lars Grobe for help identifying this problem.
1857 +
1858 + Fixed bug in depth-of-field blur where view distance was measured from
1859 + fore clipping plane rather than viewpoint.  Thanks to Peter A-B for
1860 + pointing this out.
1861 +
1862 + Added options to dctimestep to allow multiple time steps (-n)
1863 + and multiple output pictures or sensor files (-o).  Also added -i
1864 + option to specify float (-if) or double (-id) input for sky matrix.
1865 +
1866 + Created gendaymtx program to compute annual sky patch matrix based
1867 + on Ian Ashdown's implementation of Perez all-weather sky model.
1868 + Output can be sent directly to dctimestep in ASCII or binary stream.
1869 +
1870 + Replaced existing gendaylit.c with improved version from Wendelin Sprenger
1871 + and Jan Wienold of ISE.
1872 +
1873 + Improved accuracy of ambient calculation for large -ad settings.  Thanks
1874 + to Lars Grobe for noticing the problem.
1875 +
1876 + Added -r option to gendaymtx to rotate the sky the specified number of
1877 + degrees about the zenith as suggested by A. McNeil.
1878 +
1879 + Axel Jacobs added -pal eco color map that does a blue-red-yellow scale.
1880 +
1881 + Created bsdf2klems tool to convert from various BSDF representations to
1882 + Klems basis matrix in XML file.
1883 +
1884 + Fixed problem with inappropriate reciprocity enforcement on tensor
1885 + tree reduction in genBSDF.  (Thanks to A.McNeil for discovering issue.)
1886 +
1887 + Fixed bug in isotropic tensor tree sampling for impinging rays
1888 + exactly normal to surface.  Thanks to Peter Apian-Bennewitz for
1889 + discovering and pointing out the error.
1890 +
1891 + Fixed double-counting bug in mirror material with alternate type.
1892 + Thanks to David Geisler-Moroder for spotting the problem and helping
1893 + to fix it.
1894 +
1895 + Created rcollate program to resize and transpose matrix data for Andy
1896 + McNeil's 5-phase annual simulation method.
1897 +
1898 + Added epw2wea conversion program by Christoph Reinhart.
1899 +
1900 + Implemented Perlin's improved noise function with help from Rahul Narain.
1901 + This will change the appearance of renderings using this function.
1902 +
1903 + Added "origin" command to rvu as requested by John Mardaljevic
1904 + to place view origin at selected point in scene.
1905 +
1906 + Switch to Perl versions of objview and objpict written by Axel Jacobs.
1907 +
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).
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.
1939 +
1940 + Created rmtxop utility to operate on multi-component matrices.  This
1941 + facilitates some daylight matrix calculations, and provides a general
1942 + tool for manipulating matrix data.
1943 +
1944 + ****** COMPATIBILITY CHANGE ********
1945 + Introduced new Hessian-based error control in irradiance caching (ambient)
1946 + calculation.  Since the format of the stored ambient values is different,
1947 + the old files will be rejected with an error message and must be removed.
1948 + The programs may be compiled with the -DOLDAMB option if this is a problem.
1949 +
1950 + Added -p option to rcontrib to set function file parameters on a per-modifier
1951 + basis to simplify bin evaluation.
1952 +
1953 + Created rfluxmtx program to compute flux transfer matrices from a sender
1954 + surface to one or more receiver surfaces.  (Renamed the file klems_int.cal
1955 + to klems_full.cal in the process.)
1956 +
1957 + Added "-c" option to getinfo to execute command on data segment.
1958 +
1959 + =====================
1960 + Version 4.3
1961 +
1962 + Changed rmtxop so it writes out same type as lesser of inputs unless
1963 + direction otherwise using -f? option.
1964 +
1965 + Changed order of oconv arguments in rfluxmtx so user can specify input
1966 + octree using -i option at the end instead of (or in addition to) a
1967 + list of scene files.
1968 +
1969 + Added support for argument expansion to rfluxmtx and bug fixes.
1970 +
1971 + Fixed bug in indirect hemisphere sampling for some corner cases.
1972 +
1973 + Added default specular lobe to BSDF interpolation.

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