It feels like smoke released inside a glass vessel: it rises from a chosen point and swirls along the shape's boundary.
`emitFrom` sets the emission point and `direction` sets where the smoke travels. Raise `speed` for faster movement and widen `spread` for a broader emission cone. `dissipation` controls how quickly smoke fades, while `detail` changes its fine swirling texture.
The effect creates its own smoke, and a large shape against a contrasting backdrop makes the flow visible. Smoke can cover lettering, so avoid using it to fill sentences or tiny icons.
When to use
Use it for smoky backdrops, haze inside a shape, or a short transition. Avoid filling small text or precise icons with smoke.