GUI_Switch [TL]
Author: Tony Lyons - http://www.CompositingMentor.com
There were some issues with the $gui expression that everyone knows: when you render a frame locally instead of on a render farm, it did not register and would not switch over.
This tool uses a lesser known python expression called nuke.executing() which seems to solve this problem.
Inside the gizmo is just a switch node with the expression on the 'which' knob. 2 inputs: GUI and Render.
- Plug GUI into the node you want to view live in the Nuke script while you are working
- Plug Render input into whatever you want to switch to when you are rendering/executing something Usually this is for speedy work environments and switching to higher settings/samples on render time.
Visual Indicators
- When the node is on: Red and says "GUI"
- When the node is disabled: Green and says "RENDER" This will let you conveniently preview the Render or GUI. Node has no settings, just a description. Just plug in and disable/enable!

