We mark as pure PBR assets which:

  • have these material properties
    • use only principled shader in cycles
    • the inputs of the principled shader are texture images or unplugged
    • don't use any procedural textures
    • use UV or Cube mapping.
  • and their geometry
    • has optimized mesh density
    • only use these modifiers: Subsurf, Edgesplit, Displace

The advantage of pure PBR assets is their convertability into almost any game or render engine.

Pure PBR isn't a limit, and we expect and understand many assets require overstepping these limits (like our mascot kitten).