I haven't looked at the samples (err, maybe I should be for chiming in), but assuming you have some kind of heavy threshold effect that degrades image because of smoothstep or something similar but don't want that to be your final image, you could always use that threshold processed image to create the mask by which you threshold stuff out of your original image. As you state, you wish to keep gradient of original source.
So, you would use the overt threshold filter to turn every pixel that's below or above a certain threshold the color alpha. Then you would use a compositing mode that blends the alpha back on top of your source, thereby chopping out what you don't want. I'm not sure what mode that is off hand, but I know it's in there. There's a chromakey filter in the apple developer reference library that might not be 100% what you're looking for, but is highly related. On Tue, Mar 1, 2011 at 6:45 PM, Oscar 'offonoll' <regoffon...@gmail.com>wrote: > Thank you for your answer. The idea is to maintain the gradient based on > the image source. > On my sample, the slim sprite is the original source and adding the other > two objects I create the gradient. I also tryed to use two color control > patch in a row and got some similar effect but would be nice to have in CI. > > :) Best! > > On Tue, Mar 1, 2011 at 21:30, Achim Breidenbach <ac...@boinx.com> wrote: > >> Hello Oscar, >> >> I am not sure if I understand your needs completely. Is it some kind of >> threshold you are searching for? I wrote a little CI Filter for this and put >> it into your composition: >> >> >> >> >> best, >> >> Achim Breidenbach >> Boinx Software >> >> >> On 01.03.2011, at 18:39, Oscar 'offonoll' wrote: >> >> > Hello List! >> > I am looking forward for a CI super contrast filter similar to my >> composition. I got two low different grey and I would like to get white for >> the lighter grey and black for the lowest = super contrast >> > Is it possible to make it in one CI ?? >> > >> > Thank you!!! >> > <Super contrast.qtz> _______________________________________________ >> > 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/achim%40boinx.com >> > >> > This email sent to ac...@boinx.com >> >> >> > > _______________________________________________ > 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.
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