I'm new to Blender and graphics. I'm trying to apply a bump map to a mesh and export it in OBJ format, but I have two problems:
The .obj file nor the .mtl file contains any information about the bump map, in fact by reimporting the obj in blender the mesh doesn't have any bump mapping applied. By looking into the obj, normals are just very slightly modified and there's no map_Bump entry in the mtl either.
If I undestood well the bump map needs to be computed and applied each time the mesh is imported in a software, using the bump image. Is there a way to apply "statically" the bump map to the normals, so that the normals are modified just once using the bump image and saved with the mesh? So that I do not need to keep the image and recompute the bump map each time.