Pbr Roughness

• Roughness Channel Setup

• Duplicate metallic setup (Ctrl+D)

  Rename components:

  • “roughness mask” (was metal/non-metal)
  • “roughness map” (was metallic map)
  • “roughness value” (was metallic value)

• Value Testing

  1 = “100% matte, not shiny” 0 = “like a mirror”

• Enhanced Controls

  Parameters:

  • Roughness maximum
  • Roughness minimum

  Linear interpolate:

  • Uses roughness mask as alpha
  • Controls white/black pixel roughness

• Specular Note

  “Measure of light reflection” Range: 0-1 (default 0.5) “Particularly useful for non-metal” “Usually stick to roughness channel”