EffectNew

Breath vapour

Puffs of white breath hanging in cold air, from one to three people at a steady rhythm, or a steady cloud from a point such as an exhaust or a vent.

Parameters

Name	Type	Default	Range	What it does
temperature (Can change over time)	number	-2	-30 to 25 C	the air's temperature: breath shows below about 10 C, thickens toward freezing and is thickest in a deep coldCan change over time
source	choice	people	people, point	people: a puff from each person at a rhythm; point: a steady cloud from one spot such as an exhaust or a vent
at	vec2	-3, -8	-3000 to 3000 m	where the breathers stand, metres along the shore and inland of home's door (a person or the middle of a group)
people	integer	2	1 to 3	people only: how many people are breathing
spacing	number	2.2	0.5 to 20 m	people only: the distance between neighbours, along the shore
height	number	1.55	0.3 to 3 m	how high above the ground the breath leaves: a person's mouth is about 1.5 m
period	number	3.8	1.5 to 8 s	the time between breaths; a resting adult breathes every 4 to 5 seconds, working hard every 2
wind (Can change over time)	number	0.8	0 to 12 m/s	the breeze that carries the puffs alongCan change over time
windToward	number	120	0 to 360 deg	the compass bearing the breath drifts toward: 120 is along the shore, 30 inland
size	number	1	0.4 to 4	how big the puffs are, as a multiple of the usual
viewDistance	number	14	2 to 300 m	how far the camera is from the breathers, so the puffs keep a readable size on screen
colour	color	#f4f7fa	–	the colour of the vapour: white with a trace of grey-blue

film.js

elements: { 'breath-vapour': { temperature: -2, source: 'people' } }

Ask your agent to put it in a film. It finds the element by name.