You can freeze a key’s values as well as its location in time by locking the key’s position on the graph’s X and Y axis.
If the fcurve uses spline interpolation to calculate the transition to the next key, you can also freeze the key’s speed of transition and influence on the fcurve via the fcurve editor’s slope handle locking controls. For more information, see Editing a Function Curve’s Slope.
To lock a key’s position on the graph
1. In the graph, select the key whose value or location in time you want to freeze.
2. Do one or both of the following:
- Choose Keys > Lock in X (Time) to lock the key’s location in time on the X axis. The keys turn green.
and/or
- Choose Keys > Lock in Y (Value) to lock the key’s value on the Y axis. The keys turn blue.
If keys are locked in both X and Y, they turn light turquoise.
The key is frozen in place on the graph and cannot move in the locked axis. You can, however, still manipulate the key slope handles to change the shape of the slope, unless the handles have also been locked (see Locking Slope Handles).
To unlock a key’s position
Do one of the following:
• Choose either Keys > Lock in X (Time) or Keys > Lock in Y (Value) again to unlock in only that mode.
or
• Choose Keys > Unlock All Keys to unlock keys in both X and Y.
Autodesk Softimage v.7.5