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Comparing ray/doc/notes/ReleaseNotes (file contents):
Revision 1.400 by greg, Tue Dec 14 02:33:18 2021 UTC vs.
Revision 1.406 by greg, Fri Mar 11 02:27:02 2022 UTC

# Line 2501 | Line 2501 | 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.

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