| 1140 |  | the stack limit. | 
| 1141 |  |  | 
| 1142 |  | ============================== | 
| 1143 | < | Version 3.6 | 
| 1143 | > | Version 3.6 (Released 10/21/04) | 
| 1144 |  |  | 
| 1145 |  | Modified 4-byte RGBE encoding routine to avoid problems | 
| 1146 |  | when one or two primary values is negative and the other(s) | 
| 1343 |  | correctly. | 
| 1344 |  |  | 
| 1345 |  | ===================== | 
| 1346 | < | Version 3.7 | 
| 1346 | > | Version 3.7 (Released 7/25/05) | 
| 1347 |  |  | 
| 1348 |  | Fixed bug in source occluder cache which caused consistency error | 
| 1349 |  | for distant sources and mist materials.  (Thanks to Mark Stock for | 
| 1489 |  | behavior so I documented it rather than changing it. | 
| 1490 |  |  | 
| 1491 |  | ===================== | 
| 1492 | < | Version 3.8 | 
| 1492 | > | Version 3.8 (Released 10/17/06) | 
| 1493 |  |  | 
| 1494 |  | Fixed Russian roulette ray termination, which was doing the opposite of | 
| 1495 |  | what it should have been doing, resulting in overestimated values below | 
| 1609 |  | Added -h option to pcompos and pcomb to eliminate verbose headers. | 
| 1610 |  |  | 
| 1611 |  | ===================== | 
| 1612 | < | Version 3.9 | 
| 1612 | > | Version 3.9 (Released 3/30/08) | 
| 1613 |  |  | 
| 1614 |  | Added -spec option to falsecolor to restore original spectral color scale. | 
| 1615 |  | Also added "-s auto" option to automatically set the maximum value. | 
| 1666 |  | record (which can now be done with -c 0). | 
| 1667 |  |  | 
| 1668 |  | ===================== | 
| 1669 | < | Version 4.0 | 
| 1669 | > | Version 4.0 (Released 3/12/10) | 
| 1670 |  |  | 
| 1671 |  | Added -n option to rvu to provide parallel rendering. | 
| 1672 |  |  | 
| 1695 |  |  | 
| 1696 |  | Added GMT and LATLONG header lines for Greenwich Mean Time and | 
| 1697 |  | degrees North Latitude / East Longitude. | 
| 1698 | + |  | 
| 1699 | + | Added gendaylit to distribution (finally). | 
| 1700 | + |  | 
| 1701 | + | Added ability in vwright(1) to get view from command line arguments. | 
| 1702 | + |  | 
| 1703 | + | Created genklemsamp(1) utility to generate samples suitable for | 
| 1704 | + | BSDF-based annual calculations.  This is the first Perl script to | 
| 1705 | + | be added to Radiance.  Hopefully, others will follow. | 
| 1706 | + |  | 
| 1707 | + | Added klems_int.cal file to compute Klems bins for windows. | 
| 1708 | + |  | 
| 1709 | + | Created genskyvec  utility to sample a particular sky and | 
| 1710 | + | evaluate average radiance over the standard Tregenza sky patches. | 
| 1711 | + |  | 
| 1712 | + | Created dctimestep program to compute a set of sensor values or | 
| 1713 | + | a combined image for a particular time using the daylight | 
| 1714 | + | coefficient method. | 
| 1715 | + |  | 
| 1716 | + | Created src/rt/rayfifo.c for first-in/first-out handling of | 
| 1717 | + | multiprocessing by raypcalls.c. | 
| 1718 | + |  | 
| 1719 | + | Added -n option to rtrace for executing on multiple cores | 
| 1720 | + | using new rayfifo calls. | 
| 1721 | + |  | 
| 1722 | + | ===================== | 
| 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 | 
| 1727 | + | home directory. | 
| 1728 | + |  | 
| 1729 | + | Changed standard transmission function normalization back to what | 
| 1730 | + | it was in version 3.5, following recommendation of David Geisler-Moroder, | 
| 1731 | + | who pointed out that the revised BTDF increased too much at grazing. | 
| 1732 | + |  | 
| 1733 | + | Changed rad behavior with -N >1 on single view to call rpiece. | 
| 1734 | + |  | 
| 1735 | + | Updated SCons build system for MINGW compilation, thanks to Christian | 
| 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 | 
| 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. |