Customizing Nuke with Gizmos - Nuke 101: Professional Compositing and Visual Effects - page 500

The Width/Height Knob panel opens so you can define the knob's properties.
There are three properties:
• Name is the true name of the knob, used for calling the knob through ex-
pressions.
• Label is what appears in the white text to the left of the slider. The Name
and Label don't need to be the same—although they usually are. Some-
times,however,whenoneknobnameisalreadytaken,youwanttheName
to be unique so you use something longer. But you need the Label to still
be short and easily readable.
• Tooltip appears when you hover your mouse pointer over a property for a
few seconds. It's a little bit of helper text that can remind you (and other
users) of the functionality of the knob.
4. IntheNamefield,enter actionSafe .SpacesarenotallowedintheNameproperty,
but you can use an underscore in it if you like.
5. Inthe Label field, enter actionSafe .Spaces are allowed inthe Label property,but
I like to keep things consistent. Suit yourself.
6. In the Tooltip field, enter Controls percentage of Safe Area ( FIGURE 12.11 ).
Figure 12.11. The filled Width/Height Knob panel.