vortex

set 0× in templates and rigs

A standing funnel wound from helix ribbons: tongues of flame race up it and cool to soot at the crown, or dust or energy with `style`; it eases up over `travel`, stands through `hold` and winds down over `fade`.

vortex(color-cool=#ffffff color-hot=#ffffff color-mid=#ffffff)

Attributes

color-coolcolour #rrggbb0×

color-hotcolour #rrggbbTop of the ramp, at the foot; `color-mid` and `color-cool` follow it up to the crown.0×

color-midcolour #rrggbb0×

columnnumber0×

coresnumber0×

everynumber0×

fadenumberSeconds it winds down, failing from the top (default 1.4).0×

flownumber0×

glownumberOverall gain (default 1).0×

heightnumberHeight of the funnel, mm, its foot at the node's origin (default 700).0×

holdnumberSeconds it stands (default 3).0×

lighttrue / false`true` adds a flickering point light inside it; it is emissive only otherwise.0×

light-decaynumber0×

light-distancenumber0×

light-intensitynumber0×

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

opacitynumber0×

radius-basenumberRadius at the foot, mm (default 70).0×

radius-topnumberRadius at the crown, mm (default 260).0×

ribbonsnumberHelix ribbons (fire 12, dust and energy 10; at most 32).0×

seednumberRolls different ribbons (default 0).0×

spinnumberRadians per second it turns at full speed; it slows with the ease (default 3.4).0×

startnumberWhen it begins, seconds.0×

styletext`fire` (default), `dust` (sheets of grit round a hazy column) or `energy` (cold plasma, no soot).0×

thicknessnumber0×

travelnumberSeconds it eases up (default 0.8).0×

turnsnumberTurns each ribbon makes on the way up, give or take a quarter (default 2.7).0×

wandernumberMm the foot walks about, the crown swaying with it (default 0.35 of radius-top).0×