Function: pickProjection()

function pickProjection(out, projection, win): Matrix4;

Experimental

Narrow projection onto the pick window: out = T × projection, where T scales and translates clip-space x/y so the window's device pixels fill NDC [-1, 1]². Depth is untouched, so the pick pass depth-tests exactly like the visible frame. Equivalent to camera.setViewOffset(vw, vh, …, size, size) but works for any camera (and camera that already has a view offset) without mutating it. out may alias projection.

Parameters

Parameter	Type
out	Matrix4
projection	Readonly<Matrix4>
win	Readonly<PickWindow>

Returns

Matrix4