Hello! I get my information from a 2011 message on this very mailing list here : http://lists.apple.com/archives/pro-apps-dev/2011/Aug/msg00099.html Is this still valid? Does it apply to the GLSL 2D FxTexture input/output of the renderOutput method ? To be clear, both FxBitmap and FxTexture images chromaticities are always sRGB/Rec. 709 and the desired gamma is set via kFxPropertyKey_DesiredProcessingColorInfo and to either one of the two (2) following values : kFxImageColorInfo_RGB_LINEAR: for gamma 1 (linear) kFxImageColorInfo_RGB_GAMMA_VIDEO: for gamma 1.961 uniform, that is, without a transfer Rec. 709-like transfer function (see “Transfer characteristics” : https://en.wikipedia.org/wiki/Rec._709) Unrelated question alert: is there an equivalent to this mailing list on the new forums : https://forums.developer.apple.com ? Regards, Vincent Olivier _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a... This email sent to site_archiver@lists.apple.com