I ‘ve always use the following as an "auto switch” expression in a switch node that automatically picks an alternative input in case there is an issue with the the read node:
nuke.thisNode().hasError() However, I’m making a group/widget that I’d like to automatically have an internal switch that senses whether the user chooses to manually use an input into the group/widget or switch to an alternative default internal path. The issue is that if the user decides not to connect a read/input into the group/widget it doesn’t actually create an error the same way a bad read input so my “auto switch" expression doesn’t trigger. I though about putting a node upstream that would react somehow “true” to any signal but couldn’t think of anything. Does anyone have any expression ideas on how to get a switch to automatically choose an alternative input if the first input stream has no input? Thanks!_______________________________________________ Nuke-users mailing list Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
