User Manual

A B-Spline node is connected to the Garbage Matte input of a DeltaKeyer
node to eliminate a light stand at the left of frame.
TIP: You can quickly add a mask node to the Effect/Solid/Garbage Matte inputs of a
keyer node by right-clicking the header bar of that node in the Inspector and choosing
whichever mask node you want to use from the Effect Mask, SolidMatte, and
GarbageMatte submenus.
You choose whether a garbage matte is applied to a keying node as opaque or transparent in
the Inspector for the node to which it’s connected.
Solid Matte
Solid Matte inputs (colored white) are intended to fill unwanted holes in a matte, often with a
less carefully pulled key producing a dense matte with eroded edges, although you could also
use a polygon or mask paint to serve this purpose. In the example below, a gentle key
designed to preserve the soft edges of the talent’s hair leaves holes in the mask of the woman’s
face, but using another DeltaKeyer to create a solid matte for the interior of the key that can be
eroded to be smaller than the original matte lets you fill the holes while leaving the soft edges
alone. This is also sometimes known as a hold-out matte.
Filling in holes in the mask pulled by the DeltaKeyer1 node (left) with another, harder but eroded
key in DeltaKeyer2 that’s connected to the SolidMatte input of DeltaKeyer1 (right).
Chapter – 71 Rotoscoping with Masks 1442