| 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 |  |  | 
| 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 set to 0.  Made | 
| 1461 | < | this the default in rtcontrib. | 
| 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.) |