How do you export an ambient occlusion map to an FBX file? I want to send a model to someone who needs it in FBX format, but it has an AO map. Every tutorial I’ve been able to find says that you need to connect your BSDF shader to an overlay node with your albedo image and the AO map. However, FBX doesn’t allow overlay nodes and just deletes both of your maps if you try to export with it.
Is there any way within Blender to associate an AO map with an FBX file on export (so that the FBX file has a path to the AO file, the same as it does for the albedo/metallic/roughness/normal maps)?
.fbx doesn't include textures. You can save the AO map as a separate image file and have the other person apply it to the mesh once they import the .fbx into whatever app they are using.