compositeOverlay

function compositeOverlay(out: Float32Array, base: Float32Array, overlay: Float32Array, written: Uint8Array): void

import { compositeOverlay } from '@driftengine/texture';

Parameters

In depth

written is a parameter because the plan's signature had no way to say which texels and channels were touched, and without it compositing either overwrites everything — so one scorch mark erases the base across the whole tile — or guesses from a sentinel value, which is a value somebody eventually writes on purpose.