Simulating a zoom lens (PB only)You can simulate a more realistic accelerating effect of a zoom lens when working with 2D layers by using Exponential Scale, which converts linear scaling of a layer to exponential scaling. This is useful for creating a cosmic zoom, for example. Zooming optically with a lens is not linear--the rate of change of scaling accelerates as you zoom. To simulate this acceleration, Exponential Scale converts the velocity of the scaling to an exponential curve. To apply Exponential Scale:
Note: Exponential Scale replaces any existing keyframes between the selected starting and ending keyframes. |