Hello!
I have modelled a chair. For the textures I used materials from Poliigon.
I need my object for a game, so I have to bake the textures. But: it baked only 1 texture correctly, the other bakes only 1 colour on my texture.
I have a picture texture in all materials, with the same texture, all of them are marked. My object is also marked. The bake options are on diffuse. My object contains a UV map.
When I try to bake the normals, the places where there are no UVs are baked (in the typical blue), but the places where the UVs are are empty.
Which maps are you trying to bake? What do the results look like? What do you mean by “empty”?
Select the target Image Node in every material (from the first post I understand that you already did, but never hurts to check);
When baking watch for the warning messages that might appear below;
With the exception of Normal Map, I suggest plugging different outputs (Diffuse, Metallic, Roughness , etc) into the Emission Shader and baking them one by one with Bake Type set to “Emit”. That way the results will be much more predictable.