DriftEngineRenderer · function
createPointLightBuffer
A buffer for the selection to fill, sized to what the caller can actually bind.
Explained in Hello world.
function createPointLightBuffer(capacity?: number): PointLightBufferimport { createPointLightBuffer } from '@driftengine/core';Parameters
| Parameter | Type | Description |
|---|---|---|
capacity? | number |
In depth
capacity exists because clustered lighting can carry far more than the shader's uniform
arrays. The froxel table takes up to MAX_CLUSTERED_LIGHTS, and this helper used to hand it
sixteen whatever a world offered — so the capability was real and unreachable through the one
path every consumer uses. A consumer with RenderQuality.clusteredLights on asks for a wider
buffer; everything else takes the default and is unchanged.
scratchDistance grows with it, and that is not incidental: the shaded list is kept sorted
in it, so a buffer wider than the array holding its distances writes past the end. It was sized
from POINT_SHADOW_POOL because the pool happened to be the larger of the two.