| 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 |