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By comparison, Node 3 pulls a less then optimal key from the image data fed it by Node 2
Because the secondary operation is sampling the desaturated image, rather than the source,
the HSL Qualifier’s key has less image data to work with, and thus you may get an inferior result.
Parallel Node Structures
Another way to organize your corrections is to use a Parallel node structure, which lets you
apply two or more overlapping adjustments at a single stage of a node tree. You can use the
Parallel node structure for organizational reasons when there is a group of secondary
corrections that you want to apply all at once. You can also use this structure for the unique way
it blends overlapping image adjustments.
The Parallel Mixer node that makes this possible has multiple RGB inputs and a single RGB
output. This lets the Parallel Mixer mix together multiple Corrector nodes, outputting a single
image as a result.
When you add a Parallel node to an existing node, DaVinci Resolve automatically adds one
Corrector node below the current node, and adds a Parallel Mixer node to its output.
Adding a Parallel node to Node 2 automatically adds the Parallel Mixer
TIP: If you want to create a series of Parallel nodes that connect to the output of the
currently selected node, create a Serial node before you create your first Parallel node.
If you’re manually connecting another node to a Parallel Mixer node, you must first create an
additional input to connect it to.
Chapter – 125 Serial, Parallel, and LayerNodes 2846