I made a carbon fibre material with the intention to upload it to the material database, so I did. and now wen loading it it kind of crashes.
So, can anyone write me a tutorial on how to properly prepare a material macro to the live DB? It uses a texture macro for the normal mapping, and I think this is where the problem lies.
I think this looks very nice compared to the alternatives on the live DB so I decided to post it in the gallery!

So without further ado:
*Edit*
Constructive critisism is highly encouraged.