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Comparing ray/doc/notes/ReleaseNotes (file contents):
Revision 1.394 by greg, Thu Sep 2 16:11:24 2021 UTC vs.
Revision 1.397 by greg, Mon Nov 29 16:07:36 2021 UTC

# Line 2444 | Line 2444 | produces normal smoothing unless normals are removed w
2444  
2445   Added exposure preservation to pcompos when possible (i.e., when
2446   there is only one input or inputs agree on exposure).
2447 +
2448 + Added -DSHARP_RGB compile-time option to use sharp RGB color space
2449 + rather than historic default.  This can make for more accurate color
2450 + calculations, but requires that materials be recalibrated.  The
2451 + PRIMARIES= line is also produced on output from rpict or rvu with
2452 + the correct set of primaries based on how the system was compiled.
2453 +
2454 + Added automatic flushing to the output of total, except when the -r
2455 + (running subtotals) option is used.
2456 +
2457 + Improved behavior of little-used -aw option, so that it avoids sea-level
2458 + rise caused by adding its own estimate back into the ambient level remainder.
2459 + It ended up being simple enough to derate the final average by the factor
2460 + corresponding to average surface absorpition, thus removing the average
2461 + from the final bounce estimate.
2462 +
2463 + Introduced ies2rad upgrades by Randolph Fritz.  Randolph says it
2464 + fixes the following problems:
2465 +
2466 +        1. Generates correct Radiance geometry for spheres in 1995, 2002,
2467 +        and 2019 IES files.
2468 +
2469 +        2. Generates correct Radiance geometry for vertical cylinders that
2470 +        are taller than they are wide.
2471 +
2472 +        3. Ignores the file source ("File Generation Type") field in the
2473 +        2019 version of the file, which would otherwise be incorrectly used
2474 +        as an output multiplier.
2475 +
2476 +    It also offers the following enhancements:
2477 +
2478 +        1. Shape information is included in the .rad file comments.
2479 +
2480 +        2. 1995, 2002, and 2019-version luminous opening geometry is
2481 +        accounted for.
2482 +
2483 +        3. The 2002 and 2019 IES file versions are recognized and
2484 +        processed appropriately.
2485 +
2486 +        4. I have made an attempt to do something intelligent with less
2487 +        common "luminous opening" shapes in the 1995, 2002, and 2019 versions
2488 +        of the standard, though I have not implemented any support for new
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.

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