Time Stretch Node

The Time Stretch node changes the number of frames in the sequence that is input to the node to lengthen or shorten the sequence, as you specify. Time Stretch duplicates or deletes frames, using linear interpolation to dissolve between frames where necessary to soften the transition.

Time Stretch Parameter Tab

Work In

This parameter enables you to select the type of measurement system to work in: Frames or Stretch Factor.

In Range

This reference display shows the frame range of the sequence input to the Time Stretch node.

Out Range

This parameter is activated when you choose to work in Frames. Simply key a new ending frame number for the sequence into the active field.

Stretch Factor

This parameter is activated when you choose Stretch Factor from the Work In menu, enabling you to specify the factor by which the input sequence will be stretched. Depending on the value specified, Time Stretch will output a longer sequence by creating additional frames (for values greater than 1) or output a shorter sequence by deleting frames (for values less than 1).

For example, a factor of 2 will double the length of the sequence, while a factor of 0.5 will cut its length in half.

For reference, the Out Range parameter will update to show you the equivalent frame range for whatever factor you specify.

Auto Cache Input

This option, which is on by default, affects the cache setting of whatever node is serving as the input node to the Time Stretch node. The Auto Cache Input option resets the frame cache of the input node based on the current Factor value.

Auto Caching will greatly improve the speed of rendering; however it requires substantial space (in RAM or on disk) to cache the needed input frames.




Table of Contents | Index



Copyright 1996-1999 by Silicon Grail Corporation