I'm wondering if you have set any custom LUTs in your setup files?  We had
an identical moment of panic when evaluating Nuke 9 and it turns out
there's an outstanding bug(bad behaviour?) which essentially rebuilds the
stack of LUTs if you have a custom one set with an existing name.  We had
setup slog LUTs in 8 and when we fired up 9, the LUTs are literally offset,
so one might be named Alexa but might be sRGB!  Essentially we removed our
custom LUTs and it all went back to normal.

Note this is not cosmetic - it's the real deal and will make your life very
unhappy if you don't address it.

Cheers,

J.C.

On Mon, Jan 26, 2015 at 10:58 AM, Schneider, Abraham <aschnei...@arri.de>
wrote:

> Hi
>
> Where do you find/see this? I just rendered the same AlexaLogC file to a
> linear EXR by setting the Read node to colorspace 'AlexaV3LogC' in
> Nuke8.0v6 and Nuke9.0v4b, and compared them in one of the Nukes. They
> are identical.
>
> So you don't mean the actual curves in the LUT part of the project
> settings, right?
>
> Abraham
>
>
>
> Abraham Schneider
> Head of VFX pipeline / VFX Supervisor
>
>
> Türkenstr. 89, 80799 München /
> Phone +49 89 3809-1096
>
> EMail aschnei...@arri.de
>
>   Visit us on Facebook!------ Originalnachricht ------
> Von: "Howard Jones" <mrhowardjo...@yahoo.com>
> An: "Nuke user discussion" <nuke-users@support.thefoundry.co.uk>
> Gesendet: 26.01.2015 16:28:38
> Betreff: [Nuke-users] AlexaLogC
>
> >
> >
> >Hi
> >
> >Just looking at AlexaLogC in nuke8 and nuke 9 and the formulas and
> >results are hugely different
> >
> >Nuke8.6 AlexaLogC
> >x > 0.1496582 ? (pow(10.0, (x - 0.385537) / 0.2471896) -0.052272) /
> >5.555556 : (x - 0.092809) / 5.367655
> >
> >
> >Nuke9 AlexaLogC
> >pow(10,(1023*x-1023)/500)
> >
> >
> >Is this correct in Nuke9 now? Has the specifications changed recently
> >for this format. Or is this a mistake?
> >
> >
> >Thanks
> >
> >Howard
> >
> >_______________________________________________
> >Nuke-users mailing list
> >Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/
> >http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
> ________________________________
>  [
> http://www.arricommercial.de/wp-content/uploads/2015/01/2015-01-15a-AMS-E-Mail-Signatur_Berlinale.jpg]
> <http://www.arri.de/filmtv>
>
> Get all the latest information from www.arri.de/filmtv<
> http://www.arri.de/filmtv>, Facebook<
> https://www.facebook.com/pages/ARRI-Film-TV/117731121606986?fref=ts>
>
> ARRI Film & TV Services GmbH
> Sitz: München - Registergericht: Amtsgericht München
> Handelsregisternummer: HRB 69396
> Geschäftsführer: Helge Jürgens; Josef Reidinger
> _______________________________________________
> Nuke-users mailing list
> Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/
> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
>
_______________________________________________
Nuke-users mailing list
Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/
http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users

Reply via email to