Renderer · interface

FlockParams

Ambient sky life. Entirely GPU-side: the geometry is uploaded once and every bird's path is computed in the vertex shader from its index and the clock.

Explained in Hello world.

interface FlockParams

import type { FlockParams } from '@driftengine/core';

In depth

Deliberately not a simulation. Flocking behaviour would be CPU work every frame, forever, for something nobody looks at directly — and the thing it actually buys, a world that carries on without the player, comes from motion and silhouette rather than from correct boids.

Properties

Name	Type	Description
`center`	`Vec3`
`radius`	`number`
`height`	`number`
`count`	`number`
`speed`	`number`	Metres per second along the orbit.
`scale`	`number`	Half the wingspan, in metres: a bird measures `2 * scale` from tip to tip. More It said "wingspan, roughly", and it is out by a factor of two, which is not roughly. The corner table below puts the tips at plus and minus one before this multiplies them, so a caller asking for a 1.5 m bird is handed a 3 m one.