DriftEngineMaths · function
boxInFrustum
Whether an axis-aligned box is anywhere inside the frustum, by the same question the sphere test asks: outside only when wholly beyond one plane.
Explained in Coordinates and units.
function boxInFrustum(frustum: FrustumPlanes, minX: number, minY: number, minZ: number, maxX: number, maxY: number, maxZ: number): booleanimport { boxInFrustum } from '@driftengine/core';Parameters
| Parameter | Type | Description |
|---|---|---|
frustum | FrustumPlanes | |
minX | number | |
minY | number | |
minZ | number | |
maxX | number | |
maxY | number | |
maxZ | number |
In depth
The corner that decides it is chosen per plane — the one furthest along that plane's normal. A fixed corner answers correctly for the planes whose normals happen to point its way and culls a box straddling any of the others. Conservative at the edges, as the sphere test is: a box near a corner of the frustum can be outside it and still kept.