Guide / List of Metal / Smoothness values?

Hey all - been googling for a while with no luck, though this seems like it should be an easy thing to find: a list of accurate metallic & smoothness values for common materials? Glass, plastics, metals, woods, etc.

Thanks!

 

https://docs.unity3d.com/Manual/StandardShaderMaterialCharts.html

Smoothness has a lot of leeway and a lot of different values can look correct. Take any material, slightly change the coating and the smoothness value completely changes.

Take wood for example. If it’s varnished, I’m pretty sure you could get almost every possible smoothness value depending on the type of varnish. Add some wear and tear and smudges and stuff and your smoothness map can look like a Jackson Pollock painting and still look accurate.

 

Certainly. I was looking for the combination of metal and smoothness values for some common & consistent materials.

Similar to this for IOR: https://pixelandpoly.com/ior.html

Thanks for the link!

 

Metal is either a 0 or a 1 most of the time depending if it’s metal or not, so there’s really no need for a chart.

 

There are a lot of materials that the traditional metallic shader doesn’t handle well, like suede or other shiny cloth, or certain kinds of translucent materials. In those cases using some amount of metallic can have a more pleasing look, but it’s not “accurate”.