Oh diogo yes. Go into color prefs under edit menu on mac. See what happens if you set blend rgb to gamma 1.0. But that only affects layers and color but maybe its related? What colorspace is your photoshop in? Probably for you it should be srgb. You shouldnt need to convert either when opening in ps. Also see if changing cmm in color settings from adobe to apple. Remember Adobe the people who unilaterally changed a standard unit of meassure cause they wanted too. On Apr 29, 2014 11:24 AM, "Diogo Girondi" <[email protected]> wrote:
> Photoshop is handling the blend modes with gamma correction while Nuke > is doing it in linear, try checking the "Video colorspace" on your Merge > node in Nuke and see if that matches what you see in Photoshop. > > > Cheers, > Diogo > > > On Tue, Apr 29, 2014 at 7:47 AM, Florian Einfalt < > [email protected]> wrote: > >> Hello, >> >> I am having this problem with PNGs from Nuke that I need to deliver in a >> Photoshop psd-file. This specifically concerns the shadow pass of my comp >> but generally there is a discrepancy on everything that is not solidly >> opaque. >> >> My workflow is as follows: >> - I write my 8-bit PNG out of Nuke using the sRGB colorspace. >> - When I open the rendered PNG in Photoshop I assign the sRGB color >> profile and over a 'transparent' background the shadow looks to have >> similar density to the one in Nuke. >> - When I comp that layer over a white background though, the shadow is >> suddenly more dense than in Nuke. Also, there is a much harsher fall-off in >> the shadow. >> >> Is this because Photoshop treats alpha information differently from Nuke? >> >> I thought I can maybe counteract this by additional grading in Nuke but >> even when I grade the alpha gamma to 0.4545 in Nuke and then write the PNG >> I get closer but not exactly to the same result. >> >> Does anyone have a suggestion? >> >> Thanks. >> >> Florian >> >> -- >> >> >> Florian Einfalt Senior Digital Artist >> T +44 (0)20 7833 3032 M +44 (0)7808669580 >> [email protected] >> [image: Saddington & Baynes] <http://www.saddingtonbaynes.com/> >> Saddington Baynes Ltd | Studio 3, 21 Wren Street. London WC1X 0HF. >> United Kingdom | Map <http://signature.saddingtonbaynes.com/map.php> >> Disclaimer <http://signature.saddingtonbaynes.com/disclaimer.php> | >> Printing? Consider the environment. >> [image: Twitter] <http://www.twitter.com/saddbaynes> [image: >> Facebook]<http://www.facebook.com/SaddingtonBaynes> >> [image: linkedin] <http://www.linkedin.com/company/saddington-baynes> >> [image: >> pinterest] <http://pinterest.com/saddbaynes/> [image: >> vimeo]<http://vimeo.com/saddingtonbaynes> >> [image: behance] <http://www.behance.net/saddington_baynes> [image: >> instagram] <http://instagram.com/saddingtonbaynes> >> > > > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >
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