| 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 |
|
|
| 1395 |
|
by the vwright command. |
| 1396 |
|
|
| 1397 |
|
Added DBLUR variable to ranimate and pmdblur script to handle simultaneous |
| 1398 |
< |
motion and depth-of-field blurring. |
| 1398 |
> |
motion and depth-of-field blurring. Thanks to Visarc for funding this work. |
| 1399 |
> |
|
| 1400 |
> |
Added setting of focus distance in rvu ("focus" command) and rholo |
| 1401 |
> |
('f'/"frame" command). |
| 1402 |
> |
|
| 1403 |
> |
Changed default remote shell in ranimate to "ssh" rather than "rsh", |
| 1404 |
> |
which has been abandoned on most Unix systems due to security issues. |
| 1405 |
> |
|
| 1406 |
> |
Fixed behavior of source primitive using illum with no alternate |
| 1407 |
> |
material. These now become transparent so one can see the sky or |
| 1408 |
> |
light-probe background for use in image-based lighting. Previously, |
| 1409 |
> |
the user needed to specify the background glow as the alternate |
| 1410 |
> |
material for a distant illum source to behave properly. (This still |
| 1411 |
> |
works.) |
| 1412 |
> |
|
| 1413 |
> |
Fixed some minor problems and inconsistencies with 16-bit/channel |
| 1414 |
> |
TIFF i/o in ra_tiff. |
| 1415 |
> |
|
| 1416 |
> |
Created mksource program to generate distant sources for improved |
| 1417 |
> |
image-based lighting with light probes. |
| 1418 |
> |
|
| 1419 |
> |
Changed ambient calculation so that -ad will not limit recursion |
| 1420 |
> |
depth, and a minimum of 27 samples will be sent out for each stored |
| 1421 |
> |
ambient value, or 3 samples if -aa is 0 (caching off). |
| 1422 |
> |
|
| 1423 |
> |
Added -oM option to rtrace to report material (rather than modifier) |
| 1424 |
> |
for cases where actual material is aliased or further up modifier chain. |
| 1425 |
> |
|
| 1426 |
> |
Rearranged the way ray contributions are computed so that it might be |
| 1427 |
> |
possible to use rtrace to derive daylight coefficients and optical |
| 1428 |
> |
transfer functions. The new -oTW option of rtrace produces color |
| 1429 |
> |
contribution weights for each ray, which combined with the -ti (or -tI) |
| 1430 |
> |
option permits the contribution of selected surfaces or sources to |
| 1431 |
> |
be determined. Using the -oTW option, one should also specify |
| 1432 |
> |
options "-dt 0 -aa 0 -as 0" for optimal results. In particular, |
| 1433 |
> |
one cannot expect reasonable tallies with -ab >= 1 and irradiance |
| 1434 |
> |
caching on (-aa > 0). |
| 1435 |
> |
|
| 1436 |
> |
The same code modifications included a change to the indirect computation |
| 1437 |
> |
with caching switched off (-aa 0). Whereas before, the number of secondary |
| 1438 |
> |
rays after the first bounce were half of the previous generation, they are |
| 1439 |
> |
now determined by the surface reflectance, making for a better and faster |
| 1440 |
> |
calculation. It should now be possible to compute many bounces with -aa 0, |
| 1441 |
> |
which used to be prohibitively expensive. |
| 1442 |
> |
|
| 1443 |
> |
Added -T option to xshowtrace to trace rays to light sources. |
| 1444 |
> |
|
| 1445 |
> |
Added meta2bmp program to produce BMP files from metafile graphics. |
| 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. |
| 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.) |
| 1592 |
> |
|
| 1593 |
> |
Fixed long-standing inaccuracy of pcompos -t and +t thresholding options. |
| 1594 |
> |
|
| 1595 |
> |
Fixed bug in handling of views with tabs rather than spaces. |
| 1596 |
> |
|
| 1597 |
> |
Fixed bug related to alias of alias. |
| 1598 |
> |
|
| 1599 |
> |
****** COMPATIBILITY CHANGE ******** |
| 1600 |
> |
Changed default sky turbidity in gensky from the original default of |
| 1601 |
> |
2.75 to the CIE 110-1994 standard value of 2.45. Thanks to Marilyne |
| 1602 |
> |
Anderson of MIT for pointing out this discrepancy. |
| 1603 |
> |
|
| 1604 |
> |
Added -o option to ra_xyze to produce original pixel values. |
| 1605 |
> |
|
| 1606 |
> |
Fixed bug in tracing of virtual sources, where intervening glazing was |
| 1607 |
> |
not being accounted for properly. |
| 1608 |
> |
|
| 1609 |
> |
Added -h option to pcompos and pcomb to eliminate verbose headers. |
| 1610 |
> |
|
| 1611 |
> |
===================== |
| 1612 |
> |
Version 3.9 |
| 1613 |
> |
|
| 1614 |
> |
Added -spec option to falsecolor to restore original spectral color scale. |
| 1615 |
> |
Also added "-s auto" option to automatically set the maximum value. |
| 1616 |
> |
|
| 1617 |
> |
Added byte-swapping input and output to rcalc. |
| 1618 |
> |
|
| 1619 |
> |
Additional error-checking for source surfaces. |
| 1620 |
> |
|
| 1621 |
> |
Re-fixed bug in octree code that caused it to allocate 8 times as |
| 1622 |
> |
much memory as it actually used(!) -- this was pointed out way back |
| 1623 |
> |
in 1999 by Erik Reinhard and Erik Jansen, but the fix they gave me |
| 1624 |
> |
got lost in the slightly broken release process at the time. This |
| 1625 |
> |
should make a big difference in memory usage, especially for the |
| 1626 |
> |
new mesh primitive. (I measured 30% less memory usage.) |
| 1627 |
> |
|
| 1628 |
> |
Corrected ray weights for material mixtures. |
| 1629 |
> |
|
| 1630 |
> |
Reduced the default -n setting for obj2mesh to take better advantage |
| 1631 |
> |
of the smaller octree structure size. |
| 1632 |
> |
|
| 1633 |
> |
Fixed bug in shadow cache where it was adding surfaces with antimatter |
| 1634 |
> |
holes cut in them to the obstructor list. Thanks to John Mardaljevic |
| 1635 |
> |
for discovering and reporting the problem. |
| 1636 |
> |
|
| 1637 |
> |
Adding ability in mkillum to incorporate BSDF data in calculation. |
| 1638 |
> |
Internal interface (raypcalls) now used in place of rtrace process(es). |
| 1639 |
> |
|
| 1640 |
> |
Fixed pixel alignment in pcomb for size reduction and enlargement. |
| 1641 |
> |
|
| 1642 |
> |
Allow rtcontrib user to set -P and -PP options for persistent rendering. |
| 1643 |
> |
The only caveat is that -n setting > 1 requires -PP rather than -P. |
| 1644 |
> |
|
| 1645 |
> |
Added -c option to rtcontrib to facilitate cumulative calculations. |
| 1646 |
> |
|
| 1647 |
> |
****** COMPATIBILITY CHANGE ******** |
| 1648 |
> |
Fixed long-standing bug in source.cal, which caused it to produce |
| 1649 |
> |
reversed anisotropic photometric distributions due to the |
| 1650 |
> |
misorientation of the y-axis. Thanks to Zack Rogers for discovering |
| 1651 |
> |
and helping debug this problem. |
| 1652 |
> |
|
| 1653 |
> |
Fixed long-standing bug in replmarks, where triangles with X-side |
| 1654 |
> |
aligned with Z-axis would cause incorrect rotations. Thanks to |
| 1655 |
> |
Zack Rogers for finding this error. |
| 1656 |
> |
|
| 1657 |
> |
Added rsensor program to compute sensor signal for daylighting controls. |
| 1658 |
> |
Funding for this component was provided by the Architectural Energy |
| 1659 |
> |
Corporation in Boulder, CO, and directed by Zack Rogers. |
| 1660 |
> |
|
| 1661 |
> |
Added "planisphere" (stereographic) fisheye view type for traditional |
| 1662 |
> |
daylighting analysis. Feature requested & explained by Axel Jacobs. |
| 1663 |
> |
|
| 1664 |
> |
Modified -c option to rtcontrib so it can take a number of input |
| 1665 |
> |
rays to average over, rather than only produce a single accumulated |
| 1666 |
> |
record (which can now be done with -c 0). |
| 1667 |
> |
|
| 1668 |
> |
===================== |
| 1669 |
> |
Version 4.0 |
| 1670 |
> |
|
| 1671 |
> |
Added -n option to rvu to provide parallel rendering. |
| 1672 |
> |
|
| 1673 |
> |
****** COMPATIBILITY CHANGE ******** |
| 1674 |
> |
Changed ".pic" extension to ".hdr" in all sources and documentation |
| 1675 |
> |
to improve interoperability with other software, since this has become |
| 1676 |
> |
the de facto extension for Radiance RGBE and XYZE pictures. Since file |
| 1677 |
> |
extensions were never more than a convention in Radiance, this does not |
| 1678 |
> |
affect operation, but may require the update of scripts, etc. written |
| 1679 |
> |
by others that assume the ".pic" suffix for Radiance output. |
| 1680 |
> |
|
| 1681 |
> |
Added -N option to objview to support multiprocessing. |
