User Manual

Table Of Contents
Basic Node Setup
Dissolve nodes are typically connected in the following way, with two input images connected
to the background and foreground inputs, and the output connected to the next node in the
composition.
A typical dissolve node structure in Fusion
Resolution Handling
It is recommended to make sure that all images connected to the foreground, background, and
gradient map inputs of the Dissolve node have the same resolution and the same pixel aspect.
This is not required, however. But, the result if you mix resolutions depends on how you set the
Background/Foreground slider.
If the input images are different sizes, but the Foreground/Background slider is set to
full Foreground (all the way to the right) or full Background (all the way to the left), then
the output resolution will be identical to the image resolution of the corresponding
node input.
If input images of different sizes are mixed by setting the Background/Foreground
slider somewhere between, the output resolution will be set to the larger of the two
input resolutions to make sure there’s enough room to contain both images. In this
case, you may experience undesirable resolution changes when the slider moves from
full foreground or background to somewhere in between.
For example, if you try to dissolve between a 4K image (connected to the background)
and an 8K image (connected to the foreground), the output of the Dissolve node will be
4K when the slider is set to full Background, but will suddenly jump to 8K when set to
full Foreground or when mixed somewhere between the foreground and background.
Inspector
Controls Tab
These are the main controls that govern the Dissolve node’s behavior.
Operation Pop-Up: The Operation menu contains one of seven different methods for
mixing the Foreground and Background inputs. The two images are mixed using the
value of the Background/Foreground slider to determine the percentage each image
contributes.
Chapter – 86 Composite Nodes 1907