You better answer some of these questions yourself by doing a little

Should it be left on 1 when using the Substance PBR workflow? Why? Or they should be connected to a map? Specular weight tells how strong the Specular reflection are, regardless of their roughness in a range of 0 to 1.Should the Specular Color map be white in the same areas where the metallic map is black (dielectric) and colored when the metallic map is white (conductor)?

So if I know my material is, let say, bronze, I can find out the exact rgb values from the internet.īut what if my material is rusty, so the Metallic Map from Substance has a mix of areas of black and white.

Specular color should be white for dielectrics and for conductors it represent the color of the Specular reflection at glancing angle, this is clear.

Diffuse Roughness is a slider that varies between Lambert and Oren-Nayar diffuse system right? So concrete and plaster and sand should get higher values, but is this slider something to map with the same Roughness map we use for the Specular Roughness? If not, is there a list of values for materials like skin, wood, sand etc? Is this attribute something allegorithmic does not consider?.

If you are using a set of PBR maps from Substance, so Base Color, Metallic, Roughness and Normals,what value or map should be used in I have 3 questions on the PBR Workflow using maps from Substance Painter or Substance Deaigner in Arnold 5:

Arnold substance painter