I would like to know if there is a license used for the pbr materials found in the Material Library. I searched the downloads page and thru the files installed but couldn't find anything about a license. Am I able to use the materials in a game engine that I am working on and playtesting? Please note, I do not intend to redistribute the materials as a standalone archive. I want to know if there are any restrictions on releasing software containing the Material Library's pbr materials.