Nodes · Filter

BS_ExpoGlow

Filterv1coreNeeds full inputForge

Overview

Bloom that behaves like a lens: many octaves of scatter summed with an exponential falloff — tight core, wide halo, wider veil — instead of one gaussian. The bright-pass stays scene-linear so an HDR highlight glows in proportion to how bright it really is, and the result is added rather than screened, because light sums.

How to

How-to

Set threshold so only the highlights bloom, size for the core and octaves for how far the veil reaches.
falloff 2 halves each wider octave — the natural look; 1 flattens it into a wash.
Comp it after the grade, before grain.

Inputs

Input	What it takes
in	the image this node works on

Outputs

Output	Type
out	Image

Parameters

Parameter	Type	Default	What it does
intensity	Float	0.4	How strong the added effect is.
threshold	Float	0.75	The level the effect starts at.
size	Float	8.0	The effect's size/radius in pixels.
octaves	Float	5.0	How many blur scales the glow is built from: 1 is a tight halo, 5 spreads a wide bloom under a bright core.
falloff	Float	2.0	How fast each wider octave fades relative to the last: 2 halves each step (a natural bloom), 1 keeps them equal (a flat wash).
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).