EffectNew
Ash fall
Volcanic or wildfire ash sinking and drifting over the town as grey flakes, with a grey veil in the distance and a dimmer, hazier air.
- Version
- 1.0.0
- Added
- 23 October 2026
- Films
- Not used in a film yet
Parameters
| Name | Type | Default | Range | What it does |
|---|---|---|---|---|
| intensity (Can change over time) | number | 0.5 | 0 to 1 | how hard the ash falls: 0 none, 0.2 a dusting, 0.5 steady, 1 a heavy fall; also thickens the hazeCan change over time |
| fallSpeed (Can change over time) | number | 1.5 | 0.3 to 6 m/s | how fast the flakes sink; fine ash is under 1, lapilli grit is severalCan change over time |
| wind (Can change over time) | number | 3 | 0 to 30 m/s | wind speed at the ground; the ash drifts with itCan change over time |
| windToward | number | 120 | 0 to 360 deg | compass bearing the wind blows toward: 120 along the shore, 30 inland, 210 out to sea |
| flakeSize | number | 0.16 | 0.08 to 0.4 m | how wide each flake is drawn; real ash is far finer, so this is a look choice |
| veil | number | 0.5 | 0 to 1 | how much grey ash haze hangs in distant patches; 0 none |
| tint | color | #8c8a87 | – | the colour of the ash: pale grey, dark grey or brown |
| strength (Can change over time) | number | 1 | 0.1 to 1.5 | how dark the flakes and the veil are against the pictureCan change over time |
| camera | vec2 | 3, -18 | -600 to 600 | where the camera stands [along, inland] metres; the effect gathers ahead of it |
| facing | number | 20 | 0 to 360 deg | compass bearing the camera faces: 20 is the street looking at home, 210 out to sea |
| reach | number | 120 | 60 to 400 m | how far ahead the ash reaches |
| ceiling | number | 30 | 8 to 100 m | how high the far ash begins |
| level (Can change over time) | number | 0 | -20 to 60 m | height of the ground or water the effect lies on, over today's sea; follow the sea as it risesCan change over time |
| smoke (Can change over time) | number | 0 | 0 to 1 | the town's own low smoke (its smoke field) under the ash, from a distant fire or vent; 0 leaves it clearCan change over time |
| hazeRaise | number | 0.6 | 0 to 2 | how far the ash thickens the town's air, once at a shot's start; 0 leaves the haze alone |
| seed | integer | 4 | 0 to 99 | which random pattern the particles fall in |
Use it in a film
film.js
elements: { 'ash-fall': { intensity: 0.5, fallSpeed: 1.5 } }Use it from your agent
Ask your agent to put it in a film. It finds the element by name.