In the core image programming guide (http://developer.apple.com/documentation/GraphicsImaging/Conceptual/CoreImaging/ci_custom_filters/chapter_4_section_3.html about 1/4 of the way down, in the box "a few words about samplers") it says that "you can bypass the color correction that Core Image usually performs by providing a nil colorspace," but I cannot find any further instructions on how to do this. Where do I specify the colourspace? Can it be done in Quartz Composer? I suspect that this colour correction is the cause of a mysterious bug I've been experiencing in my patch...
I think the colorspace is attached to the CIImage you pass in; setting that to nil will cause the filter to skip Colorspace Correction stuff. However, I'm not sure if it's possible to get practical nil colorspaces in QC. You can get uncorrected ones much of the time, but there doesn't seem to be an explicit "set the colorspace to FOO" option for any patches, so that's not really a solution. It looks like it's a function of the creator patch's output, sometimes with checkboxes in the inspector panel.
What kind of bug are you encountering? Perhaps there's another way to work around it.
-- [ christopher wright ] [EMAIL PROTECTED] http://kineme.net/
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