| 2498 |  | Fixed issue with BSDFs that didn't obey reciprocity, where direct | 
| 2499 |  | sampling wasn't following exactly with indirect sampling.  This was | 
| 2500 |  | discovered and reported by Jon Sargent. | 
| 2501 | + |  | 
| 2502 | + | Created checkBSDF tool to test XML BSDF reciprocity and perform similar | 
| 2503 | + | sanity checks. | 
| 2504 | + |  | 
| 2505 | + | Added -O option to pvalue and pextrem to report watts/sr/m^2 even if | 
| 2506 | + | picture is XYZE. | 
| 2507 | + |  | 
| 2508 | + | Made subtle changes to header i/o routines to preserve alignment in | 
| 2509 | + | binary file formats to enable memory-mapping.  Implemented memory-mapped | 
| 2510 | + | matrix loading in rmtxop for binary double files. | 
| 2511 | + |  | 
| 2512 | + | Removed ambient value sorting, which was written when ambient caches | 
| 2513 | + | could overwhelm available memory.  This is rarely the case these days, | 
| 2514 | + | and the added code complexity and updating of cache values with LRU | 
| 2515 | + | counts dirties pages that would otherwise remain clean, so it was | 
| 2516 | + | often a loss even when VM was an issue. | 
| 2517 | + |  | 
| 2518 | + | Added iso2klems script to compute a Klems BSDF based on specular | 
| 2519 | + | and diffuse measurements as a function of incident angle. | 
| 2520 | + |  | 
| 2521 | + | Fixed issue with over-counting diffuse component during aBSDF | 
| 2522 | + | peak extraction. | 
| 2523 | + |  | 
| 2524 | + | Added dctimestep -x and -y options to specify image dimensions | 
| 2525 | + | for multiple outputs corresponding to result vectors. | 
| 2526 | + |  | 
| 2527 | + | Added -P option to rcalc to pass formatted input when cond is <= 0. | 
| 2528 | + |  | 
| 2529 | + | Created rcrop utility for cropping matrices and pictures more | 
| 2530 | + | conveniently, correcting view information.  Expect it to be handy | 
| 2531 | + | for extracting rows and columns from matrices, mostly. | 
| 2532 | + |  | 
| 2533 | + | Changed pcomb so -o option elides original exposure values | 
| 2534 | + | from indented source headers. | 
| 2535 | + |  | 
| 2536 | + | Added getinfo -r option, which is similar to -a except it will | 
| 2537 | + | replace indicated lines with new ones. | 
| 2538 | + |  | 
| 2539 | + | Slight change to vwrays -d option to not spit out "-ld-", and to | 
| 2540 | + | produce "-ld+" without requiring input picture as argument. | 
| 2541 | + |  | 
| 2542 | + | Added automatic overture calculation to rtpict with -n > 1 if | 
| 2543 | + | ambient cache is on and file is named.  If straight image output | 
| 2544 | + | is requested, we randomize all samples and avoid cache collisions. | 
| 2545 | + |  | 
| 2546 | + | Added cnt -s option to shuffle output. | 
| 2547 | + |  | 
| 2548 | + | Fixed issue with divide-by-zero errors in the ambient super-sampling | 
| 2549 | + | routine discovered by Jon Sargent of Solemma.  This affected regions | 
| 2550 | + | that had zero radiance, such as black backgrounds or unlit areas | 
| 2551 | + | with -av 0 0 0, when super-sampling was effectively disabled, causing | 
| 2552 | + | some loss in accuracy of the results. | 
| 2553 | + |  | 
| 2554 | + | Updated Klems Half- and Quarter-bases to match angles currently used | 
| 2555 | + | in WINDOW. | 
| 2556 | + |  | 
| 2557 | + | Eliminated most aiming failures for triangular light sources, at the | 
| 2558 | + | expense of conservative sampling near the centroid.  Thanks to | 
| 2559 | + | David Geisler-Moroder for his help on this. | 
| 2560 | + |  | 
| 2561 | + | Increased maximum set size to 8191 to avoid set overflow errors. | 
| 2562 | + |  | 
| 2563 | + | Added source obstruction test to statistics being kept on which | 
| 2564 | + | sources were visible in adaptive shadow testing code.  Previous | 
| 2565 | + | behavior was likely over-estimating source contributions. | 
| 2566 | + |  | 
| 2567 | + | Added diffuse components into maximum directional hemispherical | 
| 2568 | + | reported by checkBSDF, so comparing to 100% is easier for each | 
| 2569 | + | component. | 
| 2570 | + |  | 
| 2571 | + | Fixed incorrect calculations in iso2klems script, thanks to | 
| 2572 | + | help from Jacob Jonnson. | 
| 2573 | + |  | 
| 2574 | + | Updated official copyright and license according to new wording | 
| 2575 | + | provided by Jean Haemmerle at the LBNL Intellectual Property Office. | 
| 2576 | + | Both were copied verbatim from e-mail I received from Taoning Wang | 
| 2577 | + | on 8/20/2022. | 
| 2578 | + |  | 
| 2579 | + | Added -features option to rpict, rtrace, and rcontrib to check | 
| 2580 | + | which features are present or look for specific feature support. | 
| 2581 | + | This addition was suggested by Peter Apian-Bennewitz as an easier | 
| 2582 | + | way to determine which version of Radiance is installed and what | 
| 2583 | + | it supports, and is timely as we begin our refactoring of the | 
| 2584 | + | rendering code.  There are no current plans to add this to rvu. |