Echo
Creates a streaking trail behind the moving areas of an image.
Adjust this filter using the parameter controls in the Filters Inspector:
Delay: Sets the amount of delay between echoes. Values range from 0.1 to 1. A value of 0.1 is a zero frame echo, and a value of 1 represents a 60-frame echo.
Number: Sets the number of echoes.
Decay: Sets the amount of time it takes for an echo to decay.
Amount: Sets the relative opacity of each echo.
Mix: Sets the percentage of the original image to be blended with the filtered image.