const PickingContext: LiveContext<PickingContextProps>
OffscreenRenderContext
() => void
( x: number, y: number, ) => number[]
sampleRectangle
(
x1: number,
y1: number,
x2: number,
y2: number,
) => Map<number, Set<number>>
packages / workbench / src / providers / picking-provider.ts