Thank you both for your responses, unfortunately I did not understand what either of you said ...
I am adjusting the texture on a BCK wall so I'm not opening it in gmax. I Understand how to make normal map and I think I am doing the specular map right. I did not know there was Glossiness I could play with, that would help if I understood that. Google time me thinks
I though to use a vfx, maybe the glass one but there are going to be so may of these walls placed I am not sure that is a good way forward?
Thanks again gents your responses are much appreciated. I think now I will go away and research, perhaps come back with some more specific questions soon.
PJ