In my experience ID passes are not that great to use for masks. There are gizmos on nukepedia which pull keys on the color but they are often bleeding color into other channels because there are colors which aren’t even secondary(pink, light green, etc..) and the pass is not anti-aliased. Also anything semi-transparent like glass or motion blur is an instant fail. It is much better to render a bunch of separate mattes to channels in an exr file. Nuke lets you have up to 1024 channels, so you should use them :) I haven’t seen a script for arnold yet but there are many for MR and Vray to auto generate matte passes in separate channels of an exr for objects in a scene.
----- Deke Kincaid Creative Specialist The Foundry Mobile: (310) 883 4313 Tel: (310) 399 4555 - Fax: (310) 450 4516 The Foundry Visionmongers Ltd. Registered in England and Wales No: 4642027 On Thu, Mar 14, 2013 at 9:09 AM, letin210 <[email protected] > wrote: > ** > Hi there, > > Has anyone never tried to work with ID pass generated from Arnold render? > It could be very useful to get all the ID passes on one layer, but I > cannot figure out how can I manage it. > > Cheers, > Letin. > > _______________________________________________ > 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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