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Comparing ray/doc/notes/ReleaseNotes (file contents):
Revision 1.81 by greg, Thu Jun 9 17:27:27 2005 UTC vs.
Revision 1.101 by greg, Mon Sep 19 04:26:08 2005 UTC

# Line 1382 | Line 1382 | care to support officially due to its machine-dependen
1382   Fixed bug that caused incorrect reporting of non-surface in set when
1383   mixing meshes and instances.  (Thanks to Jack de Valpine for discovery.)
1384  
1385 < Fixed innacuracy in calculation of diffuse transmission in the presence
1385 > Fixed inaccuracy in calculation of diffuse transmission in the presence
1386   of pure specular (Fresnel reflection) using "trans" material.  Thanks
1387   to Christoph Reinhart for pointing out the error.
1388  
# Line 1470 | Line 1470 | Switched default options in rtrace to use Russian roul
1470   still use biased ray termination.)
1471  
1472   Added rtcontrib -r option to recover partial output.
1473 +
1474 + Added -u rendering option for pure Monte Carlo sampling.
1475 + (Got rid of -DMC compile option, which this makes superfluous.)
1476 +
1477 + Changed -t option of rlam to accept strings as well as single characters.
1478 +
1479 + Fixed bug in rcalc with -l option where it would sometimes go into an
1480 + infinite loop.
1481 +
1482 + Fixed truly ancient bug in bounding box computation for cones, which
1483 + could (and did) cause missing segments.
1484 +
1485 + Added -z option to normtiff to output LZW-compressed files.
1486 +
1487 + Last change to total causes it to produce results when it sees an empty
1488 + line on the input.  This was not intentional, but I decided I like this
1489 + behavior so I documented it rather than changing it.
1490 +
1491 + =====================
1492 + Version 3.8
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
1496 + minimum ray sampling weight (serious).
1497 +
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.

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