Renderer · interface

LightmapPage

One page as a consumer decoded it.

interface LightmapPage

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

Properties

Name	Type	Description
`width`readonly	`number`
`height`readonly	`number`
`irradiance`readonly	`Float32Array \| Uint32Array`	Linear irradiance, row-major from the top, in the same units every other light here is in — a bake from another engine scaled by that engine's exposure, as its lights are. Either three floats a texel, or one word a texel already packed as rgb9e5 (`rgb9e5.ts`), which is how such a bake usually arrives and which uploads with no conversion at all.
`direction`readonly	`Uint8Array`	The direction the light arrives from, four bytes a texel: a first-order spherical harmonic in this engine's world axes, each value stored as `v * 0.5 + 0.5` — xyz the axis, w the constant.