An example of time displacement

Suppose you specified 2 seconds as the maximum time displacement. After Effects finds the luminance value of each pixel in the displacement map, and then replaces the corresponding pixels at the current time with pixels from another time based on the maximum time of 2 seconds. Using the equation in Understanding Time Displacement, a luminance value of 255 in the displacement map replaces that pixel with the pixel 2 seconds ahead in the same position. A luminance value of 42 replaces that pixel with the pixel 1.34 seconds behind in the same position.