Nodes · Keying

BS_EdgeExtend

Keyingv1coreNeeds full inputForge

Overview

Pushes edge colour outward smoothly — as far as you like, up to filling the whole frame. Blacksmith's answer to the dilate-based extends that streak and die after a few dozen pixels. Use before a defocus (so it drags colour, not black), to fill depth-pass holes, or to extend despilled edge colour. Alpha is never touched.

How to

How-to

Wire the element; the edge comes from its alpha, or the matte input with matte_source = matte.
distance pushes colour out that many pixels; fill frame extends to the whole frame for a clean plate behind a key.
pre_erode throws away a contaminated fringe first; stability stops shimmer on a still plate.

Inputs

Input	What it takes
in	the image this node works on
matte	the alpha that drives this node

Outputs

Output	Type
out	Image

Parameters

Parameter	Type	Default	What it does
mode	Choice	distance	`distance` pushes the edge colour out by `distance` pixels; `fill frame` extends it to the whole frame — the data window grows with it. `distancefill frame`
distance	Float	64.0	How far past the edge the colour is extended, pixels.
pre_erode	Float	0.0	Erode the matte by this many pixels before extending, so a contaminated fringe is thrown away and clean interior colour is what gets pulled out.
quality	Float	4.0	How many refinement passes the extension runs — higher is smoother far from the edge and slower.
stability	Bool	false	Damp frame-to-frame change in the extended colour so a still plate does not shimmer past its edge.
matte_source	Choice	alpha	What defines the edge: the input's own `alpha`, or the wired `matte` input. `alphamatte`
disabled	Bool	false	Bypass: the node passes its first input through untouched (D in the graph). The knobs keep their values for when it comes back.
label	Text		A note shown under the node in the graph — what this node is FOR. Never affects the render or the cache.
hide_input	Bool	false	Draw the node without its input wire — a tidy graph for a node whose source is obvious (a Dot, a viewer tap).