postReference_white

A flat unlit white of 0.8 light: the thin geometry of the temporal reference scene (wires, a fence, a fan's blades) drawn against the dark, so every pixel it touches stands out from its neighbours.

Drawn by @builtin::shaders.referenceChart. Part of the post-verification reference scenes (@builtin::scenes.postReference.*); @builtin::modules.postMetrics reads them.