How to render a model as wireframe and display edges in different colors?
Solution
Select "File --> Preferences --> Visualization", expand Color and select Geometry to find the "Random Color Display" checkbox. Check the preference, set it to "Faces" and choose OK to close the dialog and apply the change.
Random Color Display can also be set in the Customer Defaults, found under "Gateway --> Visualization --> Color Settings (tab)" and within the Random Color section. Similar to the preference, select "Faces" and OK the defaults. Restart NX to see the change.
Notes and References
Hardware/Software Configuration
Platform: INTL64
OS: window
OS Version: 764SP1
Product: NX
Application: SYSENG
Version: V1847
Function: VISUALIZATION
Ref: 001-7112787