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Revision 1.145 by greg, Thu Feb 21 01:22:06 2008 UTC vs.
Revision 1.203 by greg, Tue Aug 7 18:17:17 2012 UTC

# Line 1140 | Line 1140 | of recursive routines using sets to avoid overrunning
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)
# Line 1343 | Line 1343 | Fixed bug in rcalc where it sometimes wasn't parsing t
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
# Line 1489 | Line 1489 | line on the input.  This was not intentional, but I de
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
# Line 1609 | Line 1609 | not being accounted for properly.
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.
# Line 1644 | Line 1644 | The only caveat is that -n setting > 1 requires -PP ra
1644  
1645   Added -c option to rtcontrib to facilitate cumulative calculations.
1646  
1647 Added ability to incorporate LBNL Window 6 bidirectional scattering
1648 distribution function (BSDF) data in mkillum.
1649
1647   ****** COMPATIBILITY CHANGE ********
1648   Fixed long-standing bug in source.cal, which caused it to produce
1649   reversed anisotropic photometric distributions due to the
# Line 1660 | Line 1657 | Zack Rogers for finding this error.
1657   Added rsensor program to compute sensor signal for daylighting controls.
1658   Funding for this component was provided by the Architectural Energy
1659   Corporation in Boulder, CO, and directed by Zack Rogers.
1660 +
1661 + Added "planisphere" (stereographic) fisheye view type for traditional
1662 + daylighting analysis.  Feature requested & explained by Axel Jacobs.
1663 +
1664 + Modified -c option to rtcontrib so it can take a number of input
1665 + rays to average over, rather than only produce a single accumulated
1666 + record (which can now be done with -c 0).
1667 +
1668 + =====================
1669 + Version 4.0 (Released 3/12/10)
1670 +
1671 + Added -n option to rvu to provide parallel rendering.
1672 +
1673 + ****** COMPATIBILITY CHANGE ********
1674 + Changed ".pic" extension to ".hdr" in all sources and documentation
1675 + to improve interoperability with other software, since this has become
1676 + the de facto extension for Radiance RGBE and XYZE pictures.  Since file
1677 + extensions were never more than a convention in Radiance, this does not
1678 + affect operation, but may require the update of scripts, etc. written
1679 + by others that assume the ".pic" suffix for Radiance output.
1680 +
1681 + Added -N option to objview to support multiprocessing.
1682 +
1683 + Improved sampling of circular sources (source, sphere, ring types) with
1684 + quite a bit of help from David Geisler-Moroder.
1685 +
1686 + Added "rpict" and "rvu" variables to rad, and made these as well as
1687 + the "oconv", "mkillum" and "pfilt" variables accept an alternate
1688 + command path in each case.  Change suggested by Lars Grobe based
1689 + on similar Radzilla (radz) facility by Carsten Bauer.
1690 +
1691 + Fixed rad -v N specification to use actual view name if one.
1692 +
1693 + Fixed error in mkillum calculation where it neglected indirect
1694 + source contributions from BTDF illum's.
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.

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