And an additional question: is there a way to go from the old style Nuke linear colorspace to the ACES colorspace? Both linear of course, but at least the RGB chromaticities are different, whitepoint as well?
Of course, it would only be possible to go from Nuke linear to ACES without a loss, not the other way around because of the different gammut. Thanks, Abraham Am 31.08.2012 um 11:13 schrieb Schneider, Abraham: > Hi there! > > I just played around with the OCIO nodes/modes in Nuke 6.3v8. I also had a > look at the ACES workflow/config from the opencolorIO.org website. I've added > this 'aces' config to Nuke by adding the config.ocio as the custom config. > > Seems to work fine so far. But there is one thing in this whole setup/config > that I doesn't really get: how do I use sRGB/rec709/video footage (stills > and/or movies) in a ACES environment? Normally I'd assume to switch the Read > node to raw and/or linear (because the Read doesn't support OCIO yet), add a > OCIOColorSpace, set IN to something like sRGB/rec709/etc. and the OUT to > aces, to convert the image to the ACES colorspace. But there is no IN setting > for sRGB/rech709/etc.! I can convert ARRI logC, analog film scans (cineon > coded), sLog, etc., but not 'video' or other display referred encoded > material (neither in the iff config coming by default with Nuke nor in the > aces config from opencolorio.org). So how am I supposed to use still images, > video stock footage, etc. in an ACES workflow in Nuke? > > Only way I tried it at the moment was to switch the Read to "sRGB" (or rec709 > or gamma 2.2 etc.), add a normal Colorspace after the read that converts from > linear to AlexaV3LogC and add a OCIOColorSpace with IN = 'logc' and OUT = > 'aces'. Seems to work, but doesn't seem to be a clever way. > > Do I miss something or is this just not supported at the moment in this ACES > config/workflow? Using the 'spi-vfx' config in comparison, there is the > option to set the IN to 'vd8' or 'vd10' or something like that. But 'spi-vfx' > is not using the ACES colorspace, right? > > Abraham > > > 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 > ________________________________ > > > 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
