If I render a composition and take a snapshot with CIImage, like this, the output image is incorrectly colored.
CIImage *ciframe = [renderer createSnapshotImageOfType: @"CIImage"];NSBitmapImageRep *nsibir = [[NSBitmapImageRep alloc] initWithCIImage: ciframe]; [[nsibir representationUsingType: NSPNGFileType properties: nil] writeToFile: @"/Users/cwright/desktop/image.png" atomically: NO];
[nsibir release]; output Image:
<<inline: image-ciimage.png>>
But If I take a snapshot with CGImage, the output file is correct: CGImageRef cgframe = [renderer createSnapshotImageOfType: @"CGImage"];NSBitmapImageRep *nsibir = [[NSBitmapImageRep alloc] initWithCGImage: cgframe]; [[nsibir representationUsingType: NSPNGFileType properties: nil] writeToFile: @"/Users/cwright/desktop/image.png" atomically: NO];
[nsibir release]; Output Image:
<<inline: image-cgimage.png>>
This looks like a simple color channel swizzling issue (ARGB vs BGRA), but I'm wondering if this is a bug in the snapshot code, or if I'm omitting something simple to compensate for this...
-- [ christopher wright ] [EMAIL PROTECTED] http://kineme.net/
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