Landscape Auto Material

Hey, I am trying to add support for AO maps into the material. Currently it’s not working for some reason. http://grab.by/Ouaq I have everything hooked up the same way as the other maps, and even have the AO from BreakMaterialAttributes plugged into the MakeMaterialAttributes in the main master material. Am I missing something here?

Official support for AO maps would be great. I am sure I am not the only one who wants AO for the PBR pipeline.