OTOY Forums

how does one capture roughness maps with lighting? I know how to do reflection already but cannot figure out (or even find online methods via research) of how to do roughness.

I don't know a "correct" way of capturing roughness. I just capture the reflection and take this as an starting point to make a roughness map.

ah, gotcha. that's what I've been doing as well--which works well enough with some tweaking. I thought you were specifically capturing roughness, like you would spec or something