| 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 | 
| 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 BSDF-based annual calculations. | 
| 1704 | + | This is the first Perl script to be added to Radiance.  Hopefully, others will follow. |