User Manual

Edge Softness
This slider is displayed only when Interpolation is set to Flow and Clamp Edges is enabled. It
helps to reduce the stretchy artifacts that might be introduced by Clamp Edges.
If you have more than one of the Source Frame and Warp Direction checkboxes turned on, this
can lead to doubling up of the stretching effect near the edges. In this case, you’ll want to keep
the softness rather small at around 0.01. If you have only one checkbox enabled, you can use a
larger softness at around 0.03.
Source Frame and Warp Direction
These checkboxes are displayed only when Interpolation is set to Flow. These controls
determine which frames and which vectors are used to create the in-between frames. Each
method ticked on will be blended into the result.
 Prev Forward: Takes the previous frame and uses the Forward vector to interpolate the
new frame.
 Next Forward: Takes the next frame in the sequence and uses the Forward vector to
interpolate the new frame.
 Prev Backward: Takes the previous frame and uses the Back Forward vector to
interpolate the new frame.
 Next Backward: Takes the next frame in the sequence and uses the Back vector to
interpolate the new frame.
Example
Make sure that the current time is either the first or last frame of the clip to be affected
in the project. Add the Time Stretcher node to the node tree. This will create a single
point on the Source Time spline at the current frame. The value of the Source Time will
be set to zero for the entire Global Range.
Set the value of the Source Time to the frame number to be displayed from the original
source, at the frame in time it will be displayed in during the project.
To shrink a 100-frame sequence to 25 frames, follow these steps:
1 Change the Current Time to frame 0.
2 Change the Source Time control to 0.0.
3 Advance to frame 24.
4 Change the Source Time to 99.
5 Check that the spline result is linear.
6 Fusion will render 25 frames by interpolating down the 100 frames to a length of 25.
7 Hold the last frame for 30 frames, and then play the clip backward at regular speed.
Continue the example from above and follow the steps below.
8 Advance to frame 129.
9 Right-click on the Source Time control and select Set Key from the menu.
10 Advance to frame 229 (129 + 100).
11 Set the Source time to 0.0.
Chapter – 100 Miscellaneous Nodes 2235