1-4 smoke colors; first = dense core, second = wisps

background behind the smoke

0 = smoke over the section's own background

evolution speed; keep low for realism

plume size; lower = huge slow billows

fluid distortion; higher = stringy marbled curls

vertical drift; positive = rising, negative = sinking

rotational vortex motion

density separation; higher = defined plumes

how much area the smoke fills

cursor stir strength; the pointer curls the smoke around itself in a soft vortex, like a hand waved through incense — 0 = off