seems like funky stuff, but take a look if you’re so inclined. link below. I assume you mean to use an Invert node? I’ve tried but can’t get it right. The file below has a light and camera in the same position as maya. simple sphere. Thanks Frank
https://dl.dropboxusercontent.com/u/4327868/relight.zip On Jan 1, 2014, at 8:46 PM, Randy Little <[email protected]> wrote: > What happens if you reverse the normals in nuke? > > On Jan 1, 2014 11:44 PM, "Gary Jaeger" <[email protected]> wrote: > I see. I think. It’s from maya (which is Y up) and vray but I’ll just have to > experiment > > On Jan 1, 2014, at 8:34 PM, Frank Rueter <[email protected]> wrote: > >> Well, if you export from a "z up" system you might have to swap the green >> and blue channels, and if you are importing from a left handed coordinate >> system you will have to invert red I think. >> >> >>And point positions are worldspace, right? >> Depends on what the shader is doing. They might be in camera space. >> >> >> On 02/01/14 17:30, Gary Jaeger wrote: >>> Thanks Frank. That’s what I figured but I couldn’t find a combination that >>> worked right. It would be in invert, and not a swap, right? And point >>> positions are worldspace, right? >>> >>> On Jan 1, 2014, at 7:49 PM, Frank Rueter <[email protected]> wrote: >>> >>>> That does sound like you need to munge the VRay normals. >>>> I think that is exactly what I did in the past but it's been to long, I >>>> can't remember the details. >>>> >>>> If up is down and left is right, it sounds like you just need to invert >>>> your normals pass' red and green channels. >>>> This could be caused by a z up vs y up coordinate system in your 3D setup >>>> (i.e. 3dsMax) and a left vs right hand coordinate system. >>>> >>>> >>>> >>>> >>>> >>>> On 02/01/14 16:30, Gary Jaeger wrote: >>>>> I’m experimenting with Relight. It’s cool, but it looks to me like >>>>> something is reversed. If I put a light that I know should be upper >>>>> right, the lower left gets illuminated. Maybe normals reversed or >>>>> something? these are passes from vray. Anybody run into this? >>>>> >>>>> >>>>> Gary Jaeger // Core Studio >>>>> 249 Princeton Avenue >>>>> Half Moon Bay, CA 94019 >>>>> 650 728 7060 >>>>> http://corestudio.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 >>> >>> Gary Jaeger // Core Studio >>> 249 Princeton Avenue >>> Half Moon Bay, CA 94019 >>> 650 728 7060 >>> http://corestudio.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 > > Gary Jaeger // Core Studio > 249 Princeton Avenue > Half Moon Bay, CA 94019 > 650 728 7060 > http://corestudio.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 Gary Jaeger // Core Studio 249 Princeton Avenue Half Moon Bay, CA 94019 650 728 7060 http://corestudio.com
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