Ease In (Expression Function Reference)
The Function > Profiles > Ease In command in the expression editor inserts the token ease_in(<start frame>,<end frame>,<interp>) at the insertion point in the editing pane. This token generates a ramp from 0 to 1 between the start and end frames. You can then combine this function with other operations to create ramps between any two numbers. Replace the dummy arguments as follows:
<start frame> |
Replace with an expression for the start frame of the ramp. The value is 0 before this frame. |
<end frame> |
Replace with an expression for the end frame of the ramp. The value is 1 after this frame. |
<interp> |
Replace with LinearInterp for a linear interpolation between 0 and 1 or with SplineInterp for a spline (curved) interpolation. You can use the Function > Constant submenu to insert these strings. |
Example
5*ease_in(10,90,LinearInterp)+2
Generates a linearly interpolated ramp from 2 (5 * 0 + 2) to 7 (5 * 1 + 2) between frames 10 and 90.
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