User Manual

Time Stretcher [TST]
The Time Stretcher node
Time Stretcher Node Introduction
The Time Stretcher node is similar to the Time Speed node but permits the speed of the clip to
be animated. Full spline control of the effect is provided, including smoothing. As a result, the
Time Stretcher can be used to animate a single clip to 200, back to normal speed, pause for a
second, and then play backward (like a VCR rewinding).
Image interpolation offers smooth, high-quality results, all using a spline curve to adjust time
nonlinearly. To apply constant time changes such as frame rate changes, use a Time
Speed instead.
When operating in Flow mode, Optical Flow data is required. This node does not generate
optical flow directly; you must create it manually upstream using an Optical Flow node or by
loading the forward/reverse vector channels from disk.
Flow Stretcher does not interpolate the aux channels but instead destroys them. In particular,
the Vector/BackVector channels are consumed/destroyed. Add an Optical Flow after the Flow
Stretcher if you want to generate flow vectors for the retimed footage.
Inputs
The single input on the Time Stretcher node is used to connect a 2D image that will be time
stretched.
–
Input: The orange input is used for the primary 2D image that will be time stretched.
Basic Node Setup
Like the Time Speed node, the Time Stretcher setup is as simple as connecting a 2D image into
the orange background input of the node.
A MediaIn node having its time ramped to various speeds in the Time Stretcher node
Inspector
Chapter – 100 Miscellaneous Nodes 2233