sorry, mixed up the values: whitepoint has to be 64/1023 (or 16/255) blackpoint was correct: 940/1023 (or 235/255)
Abraham Am 30.10.2012 um 18:47 schrieb Schneider, Abraham: > Should be a two-step/node solution: > > - import it with colorspace set to linear (to avoid any conversion) > - add a Grade node, set the blackpoint to 16/1023 and whitepoint to 940/1023 > (this expands the limited range to full range) > - add a colorspace with 'in' set to 'rec709' and 'out' set to 'linear' > (removes the rec709 gamma) > > if you want to put this into LUT, use the CMSTestPattern, apply the nodes > above and export a LUT with the GenerateLUT node. > > Abraham > > > Am 30.10.2012 um 15:55 schrieb Francois Lord: > >> Hi. >> >> Does anyone has a formula for a LUT in Nuke to convert REC709 limited range >> to linear? I know I can sample a ramp and create a curve, but I would prefer >> a formula. >> >> Thanks. >> >> Francois. >> > > Abraham Schneider > Head of VFX pipeline / VFX Supervisor > > > ARRI Film & TV Services GmbH > Tuerkenstr. 89 > D-80799 Muenchen / Germany > > Phone +49 89 3809-1269 > > EMail [email protected] > www.arri.de/filmtv > _______________________________________________ >> Nuke-users mailing list >> [email protected], http://forums.thefoundry.co.uk/ >> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users > > ________________________________ > > > ARRI Film & TV Services GmbH > Sitz: München Registergericht: Amtsgericht München > Handelsregisternummer: HRB 69396 > Geschäftsführer: Franz Kraus, Dr. Martin Prillmann, Josef Reidinger > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users _______________________________________________ Nuke-users mailing list [email protected], http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
