Hi John To give you a non answer. Fortunately or unfortunately with all our tools we give you enough rope to hang yourself with. None of our tools hide anything from the user and do the same math in the roto node that the merge node. As you mentioned though we should probably have something like a mask/stencil and also something like a clamp black/white option in the roto node.
I would email support and have them add a feature request for this. Bring up to them why a from/minus is not good and why a mask/stencil is better. [email protected] -- Deke Kincaid Creative Specialist The Foundry Skype: dekekincaid Tel: (310) 399 4555 - Mobile: (310) 883 4313 Web: www.thefoundry.co.uk Email: [email protected] On Fri, Apr 18, 2014 at 8:38 AM, John Mangia <[email protected]> wrote: > Wondering if one of the Foundry folks might be able to answer why there is > a from/minus layer mode in the roto node when it ends up creating negative > values (something you never want in an alpha). It's been like this forever > and I'd rather have mask/stencil modes available. Coming from Shake I've > always done my in/out roto in separate nodes but I was noticing some folks > who are learning nuke using the internal roto modes and being unaware of > the negative value problem. Thanks. > > -- > John Mangia > > 908.616.1796 > [email protected] > > _______________________________________________ > 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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