Hi - interestingly ive been playing around on this front with smoke/ pyro renders
im currently exporting both world and cam passes from Houdini - and i find that say with the relight node World passes work best ( im relighting smoke with faux normal passes) - But then with zdepth blur or using the rim light gizmo i found on Nukepedia - Cam P works best. I don't really get why just trial and error on my part. Neil Scholes +44(0) 7977 456 197 www.uvfilms.co.uk On 31 May 2012, at 15:46, HSK wrote: > Quick question about the normals passes. In maya you are given 3options, > camera space, object space, and word space....is one more accurate than the > others when it comes to relighting? Or is it simply a matter of preference > and how to use the plugin? > > > Out of curiosity, > > Has anyone ever had success with using nuke's relighting or any relighting > with hair renders? > Using a pos pass and normals. > > Steve > > > Sent from my iPad > > On 2012-05-30, at 1:56 PM, Howard Jones <[email protected]> wrote: > >> Somewhere I have/had it but I tend to do all this with world position, >> normals and one of the 3d keyers such as P_matte which is my favourite of >> them. >> >> If I can find it I'll send it on but I seem to remember I simply downloaded >> his script from the master class resources. >> >> H >> >> From: Ron Ganbar <[email protected]>; >> To: Nuke user discussion <[email protected]>; >> Subject: Re: [Nuke-users] HDRI Lighting in Nuke >> Sent: Wed, May 30, 2012 8:57:30 AM >> >> Hi Paolo, >> naturally I can do it in Atomkraft, but I'm thinking regular Nuke for now. >> >> Tahl, >> good idea about the Environment light, but I was thinking what Roy did in >> that same masterclass with the whole spherical harmonics thing. Anybody ever >> had a look at that and collected it all to a usable gizmo? >> >> Thanks, >> Ron Ganbar >> email: [email protected] >> tel: +44 (0)7968 007 309 [UK] >> +972 (0)54 255 9765 [Israel] >> url: http://ronganbar.wordpress.com/ >> >> >> >> On 30 May 2012 09:51, Paolo Berto <[email protected]> wrote: >> Hey Ron, >> >> you can easily do it with AtomKraft, even with the free version you can use >> SH and it is pretty fast :) >> >> - Lay down an AtomEnvironment >> - Plug in your HDRI (if not latlong you can use SphericalTransform) >> - Set mode to "Accurate" for SH (spherical harmonics). Just FYI the >> "Approximate" stands for bent normals. >> >> If you also need real shadowing from the environment you can: >> >> - turn AENV shadows from "off" to "simple" to also have proper shadow from >> the HDRI environment (when using shadows you should use a proper sample >> count) >> >> If you instead just need plain environment occlusion : >> >> - connect another AENV with no texture plugged (default is white >> environment) and >> - set shadows to simple, and samples accordingly. >> >> >> Note that: >> >> * The relative AOVs are properly filled. >> * There are many other combinations (plain environment reflections, >> raytraced reflection of the environment according to the BRDF, multiple >> textures for diffuse & specular...) that you can achieve, we are planning a >> simplification of AENV along with presets as it is a bit overcomplicated for >> a comp artist. >> >> Beers, >> >> P. >> >> >> >> >> >> On Wed, May 30, 2012 at 2:04 PM, Ron Ganbar <[email protected]> wrote: >> Hi Guys, >> does anyone do HDRI based Lighting in Nuke? How can one do that, I wonder? >> I remember something from the 2009 Foundry Masterclass, but it wasn't >> straight forward by any stretch of the imagination... >> >> Thanks, >> Ron Ganbar >> email: [email protected] >> tel: +44 (0)7968 007 309 [UK] >> +972 (0)54 255 9765 [Israel] >> url: http://ronganbar.wordpress.com/ >> >> >> _______________________________________________ >> Nuke-users mailing list >> [email protected], http://forums.thefoundry.co.uk/ >> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >> >> -- >> paolo berto durante >> space cowboy >> /*jupiter jazz*/ visual research — hong kong >> http://jupiter-jazz.com >> >> >> >> >> >> _______________________________________________ >> 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
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