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Comparing ray/doc/notes/ReleaseNotes (file contents):
Revision 1.397 by greg, Mon Nov 29 16:07:36 2021 UTC vs.
Revision 1.403 by greg, Mon Mar 7 17:55:09 2022 UTC

# Line 2489 | Line 2489 | fixes the following problems:
2489          geometry; approximations are substituted and warning messages issued.
2490          Unfortunately, this code is not tested, since I don't have any IES
2491          files that use these shapes.
2492 +
2493 + Added support for depth-of-field blurring in vwrays using -pd option.
2494 + Also, made -c count work with vwrays -i, producing multiple samples
2495 + per indicated pixel position.  At the same time, support for the -pd
2496 + option was added to rtpict, which calls on vwrays for its samples.
2497 +
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.

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