| 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 |  |  | 
| 1706 |  |  | 
| 1707 |  | Added klems_int.cal file to compute Klems bins for windows. | 
| 1708 |  |  | 
| 1709 | < | Created gentregvec utility to sample a particular sky and | 
| 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 | 
| 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 | 
| 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. |