site_archiver@lists.apple.com Delivered-To: pro-apps-dev@lists.apple.com I believe that FCP will still send you kFxImageColorInfo_RGB_GAMMA_DEFAULT_MACINTOSH_DISPLAY images if you set your sequence to render in RGB. This is very uncommon. In this case, the images will be gamma 1.8, even on 10.6. We used MACINTOSH_DISPLAY as a synonym for gamma 1.8, and this name unfortunately became confusing when the default gamma for macintosh displays changed. On Jul 12, 2010, at 3:31 PM, Darrin Cardani wrote:

On Jul 11, 2010, at 3:38 PM, Bob Currier wrote:

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Does anything still generate kFxImage ColorInfo_RGB_GAMMA_DEFAULT_MACINTOSH_DISPLAY as a color property?

If so, which app and how can I force it to do so?

Motion no longer does. Paul, do you know what FCP does?

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And does the gamma value change from 1.8 (which the comments in FxImage.h indicate) to 2.2 when moving to 10.6?

I couldn't remember myself, so I searched my old emails from this list and found this:

On Sep 17, 2009, at 12:07 PM, Darrin Cardani wrote:

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On Sep 17, 2009, at 6:32 AM, Gabriele de Simone wrote:

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I filed a very small bug against the SDK documentation, I only wanted a clarification for what the kFxImageColorInfo_RGB_GAMMA_DEFAULT_MACINTOSH_DISPLAY constant really means now that the default gamma on Snow Leopard is 2.2.

Unfortunately whoever read this bug didn't seem to understand my question, and closed it:

6480950

Could you please reopen the bug, or otherwise let me know the answer to my question?

Gabe, Sorry for the confusion. The kFxImageColorInfo_RGB_GAMMA_DEFAULT_MACINTOSH_DISPLAY constant will still mean 1.8, and kFxImageColorInfo_RGB_GAMMA_VIDEO will still mean 2.2.

Looking through the source confirms that.

Darrin -- Darrin Cardani dcardani@apple.com

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