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Comparing ray/doc/notes/ReleaseNotes (file contents):
Revision 1.412 by greg, Sun Apr 10 03:46:27 2022 UTC vs.
Revision 1.426 by greg, Fri Mar 17 20:43:16 2023 UTC

# Line 2540 | Line 2540 | Slight change to vwrays -d option to not spit out "-ld
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.  Random image sampling
2544 < avoids some of the issues with redundant calculations but not all.
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.
2585 >
2586 > Added falsecolor -odim, -orct, and -c0 options to overlay grid of
2587 > values on image.  This was requested by Rob Shakespeare.
2588 >
2589 > Added -i* and -o* options in rhcopy for reading rays from the
2590 > standard input and writing rays from holodeck to standard output.
2591 > This will hopefully be useful in combining rholo with rcontrib.
2592 >
2593 > Added further checking for coincident (overlapping) flat surfaces,
2594 > preferring front sides to back sides in the ray intersection
2595 > calculation.  This only applies to rings and faces, as the other
2596 > surface types would have required additional calculations to
2597 > make them work.  Material transparency is still the primary
2598 > consideration, now followed by ray hit side, followed by
2599 > modifier definition order in the input.
2600 >
2601 > Increased octree and object limits to allow scenes with billions
2602 > of primitives.

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