I don't think so - I know about FCP's gamma shift - this is definitely a color difference. Also when called from within FCP/Motion (as a plugin), it does the same thing.
thanks, Patrick On Dec 21, 2010, at 10:50 AM, erDevelopment wrote: > Hi Patrick, > > Maybe it is the FCP/Quicktime gamma shifting problem. Try to google around on > "FCP gamma shift". > > Robert > > On 2010.12.21., at 19:32, Patrick Sheffield wrote: > >> The original image came from a BetaSP tape, but it doesn't matter - I see >> the same difference in all material. >> >> I didn't include a composition as all I'm doing is taking an input image and >> the Screen blend node and running it into both inputs, then the result to a >> billboard. If I do the same thing in FCP/Motion (place an image on V1/V2 >> with V2 set to Screen composite mode), the result is considerably different. >> I don't think Quartz is doing it wrong, I just need to figure out what >> FCP/Motion are actually doing... >> >> regards, >> >> Patrick >> >> On Dec 21, 2010, at 10:16 AM, George Toledo wrote: >> >>> No composition? >>> >>> This makes it hard to discern. >>> >>> Try using Billboard, and adjusting native core image in settings, to see if >>> that makes a difference. >>> >>> Where are these images coming from? They both have edge crud... is this >>> from the screengrab? It looks like a gamma difference (but maybe not). Is >>> that happening because the FCP image is coming from something that is >>> already run through a codec? >>> >>> -GT >>> >>> On Tue, Dec 21, 2010 at 1:08 PM, Patrick Sheffield >>> <psheffi...@earthlink.net> wrote: >>> >>> ...between how Quartz Composer processes the Screen blend mode and how >>> Final Cut Pro and Motion do it? >>> >>> This is an image screened over itself in Final Cut Pro/Motion: >>> >>> >>> >>> >>> And in Quartz Composer: >>> >>> >>> >>> >>> In Quartz Composer it's flatter and considerably more red than FCP. >>> >>> If I perform a Screen Blend (the inverse of the multiplication of the >>> inverse), I get the same result as Quartz, but I need to figure out what >>> FCP/Motion are doing differently. >>> >>> Does anyone have any insight? >>> >>> Thanks, >>> >>> Patrick Sheffield >>> Sheffield Softworks >>> >>> >>> _______________________________________________ >>> Do not post admin requests to the list. They will be ignored. >>> Quartzcomposer-dev mailing list (Quartzcomposer-dev@lists.apple.com) >>> Help/Unsubscribe/Update your Subscription: >>> http://lists.apple.com/mailman/options/quartzcomposer-dev/gtoledo3%40gmail.com >>> >>> This email sent to gtole...@gmail.com >>> >>> >>> >>> -- >>> George Toledo >>> gtole...@gmail.com >>> www.georgetoledo.com >>> >>> The information contained in this E-mail and any attachments may be >>> confidential. >>> If you have received this E-mail in error, please notify us immediately by >>> telephone or return E-mail. >>> You should not use or disclose the contents of this E-mail or any of the >>> attachments for any purpose or to any persons. >>> >> >> _______________________________________________ >> Do not post admin requests to the list. They will be ignored. >> Quartzcomposer-dev mailing list (Quartzcomposer-dev@lists.apple.com) >> Help/Unsubscribe/Update your Subscription: >> http://lists.apple.com/mailman/options/quartzcomposer-dev/development%40erreklam.hu >> >> This email sent to developm...@erreklam.hu >
_______________________________________________ Do not post admin requests to the list. They will be ignored. Quartzcomposer-dev mailing list (Quartzcomposer-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/quartzcomposer-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
