3DS Max – Animation – Controller – Limit
The Limit controller lets you specify upper and lower limits to available controller values, thus restricting the potential value range of the controlled track. For example, in a character rig you could use this to restrict rotation on finger joints so the fingers can’t bend backward. Basically, once a track is limited, and the limit is active, you can’t set a value for the track beyond the limit.
GENERAL
1. Select an Object
2. RIGHT COLUMN> Motion> ‘Parameters’> Assign Controller> select in the stack Rotation> ‘XRotation’> click the small icon over the stack list ‘Assign Controller’> choose ‘Float Limit’
3. Setup Upper Limit: 90, Lower Limit 0, close the Window
4. In the viewport Xrotation will be limited from 0 to 90 degree
5. Modify the setup: RIGHT COLUMN> Motion> ‘Parameters’> Assign Controller> select in the stack Rotation> RMB over ‘XRotation’> change parameters
ERASE CONTROLLER
MAIN TOOLBAR> Curve Editor> Modes> Curve Editor> from the stack> RMB> Limit Controller> Remove Limit
FINE TUNING
MAIN TOOLBAR> Curve Editor> Modes> Curve Editor:
– Controller> Assign
– From the stack> RMB> Assign Controller / Limit Controller