User Manual

Channel
Smooth Motion can be applied to more than just the RGBA channels. It can also be applied to
the other AOV channels.
Common Controls
Settings Tab
The Settings tab in the Inspector is also duplicated in other Optical Flow nodes. These common
controls are described in detail at the end of this chapter in “The Common Controls” section.
Tween [TW]
The Tween node
Tween Node Introduction
Tween reconstructs a missing frame by interpolating between two neighboring frames using
the optical flow. Tween is nearly identical in functionality to Time Speed and Time Stretcher.
The major difference is that it works on two images that are not serial members of a sequence.
As a consequence, it cannot use the Vector or Back Vector aux channels stored in the images.
The Tween node manually generates the optical flow, so there is no need to add an Optical
Flow node before the Tween node. The generated optical flow is thrown away and is not stored
back into the output frames.
Since optical flow is based on color matching, it is a good idea to color correct your images to
match ahead of time. Also, if you are having trouble with noisy images, it may also help to
remove some of the noise ahead of time.
Tween destroys any input aux channels. See the Optical Flow node for controls and settings
information.
Inputs
There are two image inputs on the Tween node and an effects mask input.
–
Input 0: The orange input, labeled input 0, is the previous frame to the one you are
generating.
–
Input 1: The green input, labeled input 1, is the next frame after the one you are
generating.
–
Effect Mask: The blue input is for a mask shape created by polylines, basic primitive
shapes, paint strokes, or bitmaps from other tools. Connecting a mask to this input
limits the Tween to certain areas.
Basic Node Setup
The Tween node receives two inputs for the two neighboring frames to the one you are
generating. Below, the previous frame, frame 01, is connected to the orange input 0. The next
frame, frame 03, is connected to the green input 1. The Tween node will generate frame 02 and
output the sequence.
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