Merci Julien, I'll try this at home in few minutes. Maybe my 3d gay, sorry i mean guy like pink ;)
Spider 2011/3/24 Julien Chandelle <[email protected]> > I just did this gizmo, you can pick any color choose if you want extract a > matte or apply the alpha on your picture with a premult if you want. Of > course I agree with Deke this way suck, an exr with matte is better but I > prefer several RGB matte pass. > > set cut_paste_input [stack 0] > version 6.2 v2 > push $cut_paste_input > Group { > name Select_color > selected true > xpos -168 > ypos 2 > addUserKnob {20 User} > addUserKnob {41 color T Constant1.color} > addUserKnob {6 out_alpha l "Out Alpha" +STARTLINE} > addUserKnob {6 premult +STARTLINE} > } > Constant { > inputs 0 > channels rgb > color {0.3005436957 0.02121900581 0.3762620389 1} > last 100000 > name Constant1 > xpos 38 > ypos 109 > } > Input { > inputs 0 > selected true > xpos -101 > ypos 86 > } > Difference { > inputs 2 > gain 90 > name Difference1 > xpos -101 > ypos 126 > } > Invert { > channels alpha > name Invert1 > xpos -101 > ypos 171 > } > Premult { > name Premult1 > xpos -101 > ypos 209 > disable {{!parent.premult i}} > } > Shuffle { > red alpha > green alpha > blue alpha > name Shuffle1 > xpos -101 > ypos 235 > disable {{!parent.out_alpha i}} > } > Output { > name Output1 > xpos -101 > ypos 287 > } > end_group > > > > On Thu, Mar 24, 2011 at 8:57 PM, Deke Kincaid <[email protected]>wrote: > >> Keyer is pretty much it. There are gizmos which just automate doing >> id channels on nukepedia and creativecrash but underneath they are all >> just keyers. >> >> For future though, get your cg guys to render multiple mattes to a >> single exr instead of using id's which just suck, especially pink that >> it likes to throw in there. There are mel scripts for Mental Ray and >> Vray which automate doing this. >> >> -deke >> >> On Thu, Mar 24, 2011 at 12:50, Spider <[email protected]> wrote: >> > Hi everyone, >> > I have a question maybe already ask (i checked before) >> > i'd like to know what is the best way to extract CMY to make a object >> matte, >> > i guess that their is a better way than use keying nodes. >> > May someone can light me ? >> > i put in attachement an example. >> > >> > Thanks. >> > Spider >> > >> > >> > -- >> > Luddnel Spider Magne | Director - Lead Motion Compositor >> > 555Lab – Alchemy between you and us >> > 24 rue du Pré St-Gervais 93500 Pantin >> > Office (+33)148 453 555 | Fax (+33)171 864 387 >> > Mobile (+33)699 434 555 | 555lab.com >> > >> > _______________________________________________ >> > Nuke-users mailing list >> > [email protected] >> > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >> > >> > >> _______________________________________________ >> Nuke-users mailing list >> [email protected] >> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >> > > > > -- > Julien Chandelle > GSM : +32 (0) 494 277 542 > julienchandelle.be <http://www.julienchandelle.be> > || Nuke , AE & Fusion Compositor || > > > _______________________________________________ > Nuke-users mailing list > [email protected] > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users > > -- *Luddnel Spider Magne **|** Director - Lead Motion Compositor* 555Lab – Alchemy between you and us 24 rue du Pré St-Gervais 93500 Pantin Office (+33)148 453 555 | Fax (+33)171 864 387 Mobile (+33)699 434 555 | 555lab.com <http://www.555lab.com/>
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