openexr-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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


From: Joseph Goldstone
Subject: [Openexr-devel] Bringing IlmAcesFile.cpp into accord with recent events
Date: Tue, 26 Aug 2008 13:55:56 -0700

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;
}



reply via email to

[Prev in Thread] Current Thread [Next in Thread]