Yes, it would certainly make the Mari<->Nuke bridge much cleaner. I was a bit hasty in saying the existing shading system could do it - I doubt the current shading calls can support ptex's per-face uvs without modification. The ptex reader needs the face index and the barycentric coordinate which is missing from the current VertexContext structure (as of 7.0 that is.) But that info certainly exists at shading time so the renderer can provide it to the shading system in the future with minor changes to the VertexContext.
-jonathan On Oct 12, 2013, at 5:00 PM, Darren Poe wrote: > Hey Jonathan! Long time indeed, hope you've been well! > > Thanks for all the info on ptex... sounds a bit more complicated than I > hoped. I actually tried loading in a Mari ptx file into nuke, and it seemed > to be pulling in the geo but not any image data. I also noticed that the > original geo (2 mb in size) became a 60 mb ptx file with only 1 2k texture > channel. Curious what would happen on a large model... > > In any case I do hope Foundry is thinking about implementing this -- it is a > great feature of Mari to be able to paint on UV-less models, potentially a > huge time saver. I will definitely ask! > > -Darren > > On 2013-10-11, at 4:23 PM, Jonathan Egstad wrote: > >> Whoops, I mean Darren… see, it has been a long time... :) >> >> On Oct 11, 2013, at 4:13 PM, Jonathan Egstad wrote: >> >>> Hi Darin! >>> Long time no hear. >>> >>> I doubt it - ptex files are not normal 2D textures so Nuke's current 2D >>> structure won't support them out of the box. There's probably some wacky >>> way to shove the ptex data into the existing float buffers but none of >>> standard Nuke nodes would know how to interpret the data. >>> It's impractical to unpack as well as you may need hundreds of different >>> layers all at different resolutions. >>> >>> Likely Nuke's 2D system will need to be extended like it was to support >>> Deep data in order to support the packed encoding of ptex. Perhaps the >>> Foundry is already working on this - you should ask. >>> >>> -jonathan >>> >>> On Oct 11, 2013, at 11:19 AM, Darren Poe wrote: >>> >>>> First off let me say I'm pretty new to ptex... But if say I paint on an >>>> obj model with no UVs in mari, is it currently possible to bring that >>>> texture into nuke and apply it directly to the obj? >>>> Thanks, >>>> >>>> -Darren >>>> >>>> Sent from my iPhone_______________________________________________ >>>> 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 >> >> _______________________________________________ >> 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 _______________________________________________ Nuke-users mailing list [email protected], http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
