Well, sure, if you need the "if" statement, you can just reverse the values. But if all you need is the boolean result of it (for example, turn on or off a disable knob based on whether you're in an interactive or batch session, or choose from input 0 or 1 of a switch node), using $gui or !$gui as needed is simpler, imo.
Ex: (turn "on" a disable knob only for renders) !$gui ... is simpler and less redundant than ... $gui?0:1 But this is splitting hairs, I think. At the end of the day it just needs to be whatever you'll read / recognize better later on. On Fri, Mar 11, 2011 at 5:51 PM, Aruna <inver...@d2.com> wrote: > I don't usually like using !$gui. I use $gui with ? and : to form an if > then else statement.. Useful for motion blur and switches and other items > like disables. It's also a little more specific for me. > > Example: > $gui?1:10 --> If GUI is present, use 1, otherwise use 10 > > Howard Jones wrote: > >> to explain for those that dont know this and possibly setting out my >> ignorance >> >> '!' means 'not' in this case >> so $gui is a variable (constant?) that basically asks >> is the gui (graphical interface) being used? if yes then True (or 1) and >> if no then False (or 0) >> >> '!' then turns this on its head and says >> >> is the GUI NOT being used, true if yes and false if not >> >> So if you are using the gui and have >> $gui in a disable knob it means turn this off when the gui is on and on in >> bg rendering. >> !$gui means turn this on when the gui is on and off in the bg (good for >> overlay text that you dont want to render) >> >> You can use '!' to invert all sorts of user variables. >> >> H >> >> ------------------------------------------------------------------------ >> *From:* Ivan Busquets <ivanbusqu...@gmail.com> >> *To:* Nuke user discussion <nuke-users@support.thefoundry.co.uk> >> *Sent:* Fri, 11 March, 2011 18:59:39 >> *Subject:* Re: [Nuke-users] opposite of $gui >> >> !$gui? >> >> On Fri, Mar 11, 2011 at 10:56 AM, Randy Little >> <randyslit...@gmail.com<mailto: >> randyslit...@gmail.com>> wrote: >> >> Is there an opposite of using $gui? >> >> >> Randy S. Little >> http://www.rslittle.com <http://reel.rslittle.com> >> >> >> >> >> _______________________________________________ >> Nuke-users mailing list >> Nuke-users@support.thefoundry.co.uk >> <mailto:Nuke-users@support.thefoundry.co.uk> >> >> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >> >> >> ------------------------------------------------------------------------ >> >> >> _______________________________________________ >> Nuke-users mailing list >> Nuke-users@support.thefoundry.co.uk >> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >> >> > > > -- > / aruna / 2d at d2 / x2477 / > > _______________________________________________ > Nuke-users mailing list > Nuke-users@support.thefoundry.co.uk > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >
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