Not really hard.The main ones are Diffuse - color map Spec - Specular maps Bump > normal bump > bitmap > (then select your normal map ) And other ones Then if you have 2009 then use hardware viewport options.
I have one object and diffuse map, normal map and specular map. How could I apply these maps to the object to see ethg in viewport? Should I use standard material and add materials to the slots and use 'Show Hardware map in viewport' (but when I'm doing this, my object is whole black) or maybe I should use DirectX Shader…
Try the DirectX Shader material, and use the "StandardFX.fx" file (it's the most common one with diffuse/normal/spec stuff). Then you can just assign your textures as needed, it should all show up in the viewport. The DirectX Shader material tends to be a lot faster (and I think less memory intensive?) than the Show…