| 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. |