Nodes · Filter

BS_HeatHaze

Filterv1coreNeeds full inputForge

Overview

Animated refraction shimmer — heat off tarmac, exhaust, underwater. It displaces rather than blurs, so the image stays sharp and simply arrives from slightly the wrong place. rise biases the motion upward, which is what makes it read as heat instead of water; evolution animates it so it crawls rather than boils.

How to

How-to

Wire the plate and a mask of where the heat is.
amount is the displacement in pixels, size the wobble's scale, rise how fast it drifts upward.
Key evolution for a boil that does not repeat; seed for a different pattern.

Inputs

Input	What it takes
in	the image this node works on
mask	limits the effect to this matte — the engine's universal mask slot, applied for every node that declares it

Outputs

Output	Type
out	Image

Parameters

Parameter	Type	Default	What it does
amount	Float	4.0	Strength of the effect. 1 = as designed; 0 = none.
size	Float	28.0	The effect's size/radius in pixels.
detail	Float	3.0	Octaves of the shimmer noise: 1 is a slow wobble, 4 adds fine flicker.
rise	Float	0.6	How fast the haze pattern drifts upward, as hot air does — frame heights per second.
evolution	Float	0.0	Animate the pattern's churn independently of the rise — key it for a haze that boils.
seed	Float	0.0	The random pattern's starting point. Change it for a different pattern of the same character; keep it to reproduce a frame exactly.
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).