flame

set 0× in templates and rigs

`flame`: a raymarched column of fire whose licking tongues neck in and tear apart, a white-hot root showing through a thinner orange body with a sooty fringe; it erupts past its height, burns, and gutters from the top down. `style=black` is an opaque cold flame that glows only at its skin, tips and roots.

flame(color-core=#ffffff color-ember=#ffffff color-hot=#ffffff)

Attributes

color-corecolour #rrggbbThe root's white (fire #fff0c4, holy #fffef2, black #f2e6ff).0×

color-embercolour #rrggbbThe tips' dull red; not read by black (fire #5e0f02, holy #b85c14).0×

color-hotcolour #rrggbbThe body; for black, the burning skin (fire #ffa21f, holy #ffedb0, black #9a4dff).0×

color-sootcolour #rrggbbThe soot; for black, the faint light on its body (fire #0c0806, holy #3a2c1c, black #030206).0×

color-warmcolour #rrggbbThe upper body; not read by black (fire #e8400a, holy #ffc452).0×

everynumber0×

fadenumberSeconds it gutters, the top going first (default 1.4).0×

glownumberEmissive gain (default 1).0×

heightnumberHeight of the settled column, mm (default 760); it stands on the node's origin and rises along +y.0×

holdnumberSeconds it burns (default 3).0×

lighttrue / false`true` adds a flickering PointLight inside the column (default off); `light-intensity`, `light-distance`, `light-decay` (5200, 2000, 1).0×

light-decaynumber0×

light-distancenumber0×

light-intensitynumber0×

looptrue / false`true` repeats the cycle; `every` is its period in seconds.0×

opacitynumberOverall opacity (default 1); also multiplied by node opacity keyframes.0×

position"x y z"0×

radiusnumberRadius of the root, mm (default 170); it necks in above that.0×

seednumberRolls a different fire (default 0).0×

sootnumberThickness of the dark fringe; for black, the body's density (fire 1, holy 0, black 1).0×

speednumberMultiplier on how fast the gas climbs (default 1).0×

startnumberWhen it erupts, seconds (default 0).0×

stepsnumberMarch steps along a ray, 8..64 (default 44).0×

styletext`fire`, `black` (opaque, burns at its skin) or `holy` (pale, sootless) (default fire).0×

swirlnumberRadians per second the column turns (default 0.5).0×

temperaturenumberMultiplier on the heat: under 1 is redder, over 1 whiter (default 1).0×

tonguesnumberHow many tongues round the column; more is finer (default 6).0×

travelnumberSeconds to reach its height, overshooting and settling (default 0.55).0×

turbulencenumberHow far the tongues tear from the column; 0 is a smooth teardrop (default 1).0×