keep us posted, please! On 7 March 2012 16:27, Richard Bobo <[email protected]> wrote:
> Thanks, Julik, Andy, Diogo and Simon for your suggestions, ideas and > questions... > > After trying a number of things and reading some more about the way ProEXR > and Photoshop handle things, we're going to try to make our tweaks in Nuke > and let Photoshop do whatever it does. It may take a few rounds of tweaking > and converting to see just what we need to do on the Nuke side to make it > come out the way we want on the Photoshop end. However, it seems like there > are just too many variables there. So, we'll not try to fight it... (8^\ > > Thanks for your help! > > Rich > > > Rich Bobo > Senior VFX Compositor > Email: [email protected] > Mobile: 248.840.2665 > Web: http://richbobo.com > > > On Mar 07, 2012, at 07:00 AM, Simon Björk <[email protected]> wrote: > > In what application are you comparing the result of the TIFFs? Nuke or > Photoshop? I believe Photoshop use linear light math when in 32bpc and in > that case, the blending of layers (and brightness) will look different if > you change your project to 8 or 16-bit. > > > > 2012/3/7 Julik Tarkhanov <[email protected]> > >> >> On 7 mrt 2012, at 01:51, Rich Bobo wrote: >> >> The problem is that we need to get 8 bit layered TIFs out of Photoshop. >> >> I think the first problem is that the Photoshop blending is profoundly >> affected by the bit depth. >> The second problem is that if Nuke does a 1D lookp table conversion from >> one kind of RGB to another >> (including bit depth upgrades), Photoshop goes via Lab so what is >> happening is more like to a 3D LUT. >> >> What happens in your case is that probably Photoshop is converting the >> layers first, and then the result of the blending >> modes changes the way the images look. Maybe it's an issue with layer >> mask and front unpremultiplication and conversion. >> >> For me the first thing to check would be the PS profile settings for >> 8-bit RGB. Also, where do the discrepancies occur the most? >> Blended layer edges? Maybe your workflow needs to be related to manually >> unpremulting layers by the layer transparency and >> preadjusting the transparency grays... >> -- >> Julik Tarkhanov | HecticElectric | Keizersgracht 736 1017 EX >> Amsterdam | The Netherlands | tel. +31 20 330 8250 >> >> cel. +31 61 145 06 36 | http://hecticelectric.nl >> >> >> >> >> >> >> >> _______________________________________________ >> Nuke-users mailing list >> [email protected], http://forums.thefoundry.co.uk/ >> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >> > > > > -- > -------------------------------- > Stiller Studios > Lidingö/Sweden > > Simon Björk > Stiller Studios > +46 (0)8 555 23 560 > Ekholmsnäsvägen 40, S-181 41 Lidingö > [email protected] > www.stillerstudios.se > > find us: > http://www.eniro.se/query?search_word=stiller+studios&geo_area=liding%F6&what=all > > > _______________________________________________ > 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 > -- Y ella dijo: "La ilusión mueve el mundo"
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