A PBR set is four maps doing different jobs, and most bad materials fail on one specific channel rather than all of them: lighting baked into base colour, roughness derived from inverted luminance, metallic used as a dial instead of a switch, or a normal map with the wrong green channel for its destination engine. These pieces cover what each channel has to contain, how to test it, and which maps have to come out of your geometry rather than a generator.
An AI map generator makes base colour, roughness, metallic and normal maps. Which generate well, which must be baked from geometry, and why.
7 min readBaking normal, AO and curvature maps in Blender: the settings that actually matter, why bakes come back wrong, and how to run the whole pass as one brief.
7 min readHow an AI texture generator makes base colour, roughness, metallic and normal maps for Blender, and what separates a usable set from a flat one.
7 min readLooking for the full set? The AI agent for Blender pillar collects every automation guide, and the blog carries the rest.