| 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 | 
  | 
 | 
| 1446 | 
  | 
 | 
| 1447 | 
  | 
Added cct_x(t) and cct_y(t) to src/cal/cal/blackbody.cal to interpolate | 
| 1448 | 
  | 
CIE chromaticities for particular black-body temperatures. | 
| 1449 | 
+ | 
 | 
| 1450 | 
+ | 
Increased maximum number of input pictures in pcomb and pcompos to 512. | 
| 1451 | 
+ | 
 | 
| 1452 | 
+ | 
Created rtcontrib program for computing ray contribution coefficients. | 
| 1453 | 
+ | 
This tool may be used to do standard optical ray tracing or daylight | 
| 1454 | 
+ | 
coefficient calculations for annual simulations, among other uses. | 
| 1455 | 
+ | 
 | 
| 1456 | 
+ | 
Added tilde ('~') output option as part of the -o* specification of | 
| 1457 | 
+ | 
rtrace.  This permits ray trees to be parsed more easily in binary | 
| 1458 | 
+ | 
output mode, as needed by rtcontrib. | 
| 1459 | 
+ | 
 | 
| 1460 | 
+ | 
Implemented Russian roulette ray termination with -lr <= 0. | 
| 1461 | 
+ | 
Made -lr -10 the default in rtcontrib. | 
| 1462 | 
+ | 
 | 
| 1463 | 
+ | 
Made rtcontrib -f option search RAYPATH directories. | 
| 1464 | 
+ | 
 | 
| 1465 | 
+ | 
Made it so -o option of rtcontrib can pipe -o output to a command. | 
| 1466 | 
+ | 
 | 
| 1467 | 
+ | 
Added -if and -of options to total for binary i/o (following rcalc mold). | 
| 1468 | 
+ | 
 | 
| 1469 | 
+ | 
Switched default options in rtrace to use Russian roulette.  (Rpict and rvu | 
| 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. |