Re: [Openexr-devel] Bringing IlmAcesFile.cpp into accord with recent events

[Piotr Stanczyk]

Thanks for the updates.

Piotr

Florian Kainz wrote:

ImfAcesFile.cpp has been updated.

Joseph Goldstone wrote:

The existing IlmImf/ImfAcesFile.cpp source contains:

const Chromaticities &
acesChromaticities ()
{

static const Chromaticities acesChr (V2f (0.7347, 0.2653), // red

         V2f (0.0000,  1.0000),    // green
         V2f (0.0001, -0.0770),    // blue
         V2f (0.3200,  0.3350));    // white

    return acesChr;
}

but these were revised as the ACES document was finalized (http://stcatp.org/, join, and when accepted go to the Downloads folder). The new ACES neutral chromaticity is now x = 0.32168, y = 0.33767; and for what it's worth, the primaries are spec'd to five places to the right of the decimal, matching the precision of the neutrals.

{

static const Chromaticities acesChr (V2f (0.73470, 0.26530), // red

         V2f (0.00000,  1.00000),    // green
         V2f (0.00010, -0.07700),    // blue
         V2f (0.32168,  0.33767));    // white

    return acesChr;
}




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