| 1498 |  | Changed mksource to use 98th percentile (rather than 99th) for threshold. | 
| 1499 |  |  | 
| 1500 |  | (Above changes included in 3.7.1 patch release.) | 
| 1501 | + |  | 
| 1502 | + | Eliminated writing of EXPOSURE= line in ra_tiff -r when source TIFF | 
| 1503 | + | does not have STONITS set. | 
| 1504 | + |  | 
| 1505 | + | Fixed bug in ambient calculation that caused black values for multiple | 
| 1506 | + | bounces in some scenes.  Thanks to Mark Stock for creating and sharing | 
| 1507 | + | the sophisticated test scene that demonstrated this problem. | 
| 1508 | + |  | 
| 1509 | + | Fixed bug in antimatter using Russian Roulette sampling. | 
| 1510 | + |  | 
| 1511 | + | (Above changes included in 3.7.2 patch release 22 Aug 2005.) | 
| 1512 | + |  | 
| 1513 | + | Created fieldcomb script to combine alternate fields in a rendering | 
| 1514 | + | sequence.  (Development generously sponsored by Iebele Abel.) | 
| 1515 | + |  | 
| 1516 | + | Added missing preload of mesh objects for more efficient memory use | 
| 1517 | + | during parallel rendering -- this was a serious oversight. | 
| 1518 | + |  | 
| 1519 | + | Created ran2tiff program to automate exposure setting of animation | 
| 1520 | + | sequences using a moving histogram in combination with pcond, and | 
| 1521 | + | converting frames to TIFF. | 
| 1522 | + |  | 
| 1523 | + | Eliminated SPEED macro from makeall and source tree. | 
| 1524 | + |  | 
| 1525 | + | Added -pj option to vwrays to allow jittering of sample locations. | 
| 1526 | + |  | 
| 1527 | + | Fixed bug in rtcontrib where it occasionally missed writing the | 
| 1528 | + | final bin file.  (Pretty serious, actually.) | 
| 1529 | + |  | 
| 1530 | + | Added -Dfseeko=fseek to MACH= line for linux, as fseeko(3) seems to be | 
| 1531 | + | broken in current versions of Linux.  (Need to remove this later.) | 
| 1532 | + |  | 
| 1533 | + | Rearranged struct's for better efficiency on 64-bit architectures. | 
| 1534 | + |  | 
| 1535 | + | Added -i option to rlam so it works with binary input formats. | 
| 1536 | + |  | 
| 1537 | + | Added rtcontrib -bn option to specify number of bins and fixed bug | 
| 1538 | + | in recovery of files containing multiple values per record. | 
| 1539 | + |  | 
| 1540 | + | Added rtcontrib -fo option to write over existing files, which it now | 
| 1541 | + | refuses to do without this option. | 
| 1542 | + |  | 
| 1543 | + | Made rtcontrib flush output when handed a zero-length ray vector, | 
| 1544 | + | to match behavior of rtrace. | 
| 1545 | + |  | 
| 1546 | + | Improved color scale for falsecolor output. | 
| 1547 | + |  | 
| 1548 | + | Added threshold test for Fresnel approximation to prevent its use | 
| 1549 | + | on smooth surfaces with unrealistically low specularities (less than 1.8%). | 
| 1550 | + | Water has a specular reflectance of 2.1% at room temperture. | 
| 1551 | + |  | 
| 1552 | + | Removed NICE macro settings in rpict and rtrace, which was slowing down | 
| 1553 | + | the processes under Mac OS X (10.4) by about 60% due to processor napping. | 
| 1554 | + |  | 
| 1555 | + | Made xform, replmarks and rad2mgf handle quoted modifiers and names properly. | 
| 1556 | + |  | 
| 1557 | + | Fixed problem in genblinds, where it was generating slats that were too | 
| 1558 | + | wide with the +/-r option.  (Thanks to Helena Buelow-Huebe for discovering | 
| 1559 | + | this bug.) | 
| 1560 | + |  | 
| 1561 | + | Fixed bug in ra_ppm for 16-bit/sample i/o, where it was getting the byte | 
| 1562 | + | order wrong (apparently). | 
| 1563 | + |  | 
| 1564 | + | Added -V option to rtcontrib to report actual contributions, rather than | 
| 1565 | + | just ray coefficients. | 
| 1566 | + |  | 
| 1567 | + | Fixed bug in ranimate that caused it to fail in continuation of renderings. | 
| 1568 | + |  | 
| 1569 | + | Renamed librt.a to librtrad.a, to avoid conflict on Solaris. Almost | 
| 1570 | + | everything now gets linked to -lrtrad instead of -lrt. | 
| 1571 | + |  | 
| 1572 | + | Fixed problem with large sample sets, so -u+ option now is truly random. | 
| 1573 | + | Thanks to Rick Mistrick and Younju Yoon for identifying this problem, | 
| 1574 | + | which was related to a poorly designed hash function. | 
| 1575 | + |  | 
| 1576 | + | Changed -u+ to be the default setting in rtrace (only). | 
| 1577 | + |  | 
| 1578 | + | Fixed binary i/o for rlam and vwrays under Windows. | 
| 1579 | + |  | 
| 1580 | + | Added tmCvLums() to tone-mapping routines using a 16-bit lookup table | 
| 1581 | + | on IEEE floats, which is also used to improve speed of COLOR conversions, | 
| 1582 | + | especially on machines with slow log() calls.  The first call to | 
| 1583 | + | tmCvLums(), tmCvGrays(), or tmCvColors() initializes the table. | 
| 1584 | + |  | 
| 1585 | + | Created optics2rad.csh script to convert from Optics 5 material output | 
| 1586 | + | to something correct for Radiance.  Built on old glazing.cal function, | 
| 1587 | + | which is actually incorrect so removed from the distribution. | 
| 1588 | + |  | 
| 1589 | + | Fixed nuisance bug in ximage under some SGI machines that caused it to | 
| 1590 | + | choose an inappropriate visual and display incorrect colors.  (Thanks | 
| 1591 | + | to Oskar Itzinger for debugging the problem.) |