Composite Map with bumps

[Menno]

Hey,

 

I've been fiddling around with a wall with different brick directions. Check image 1. They usually change the direction of the brick when above a door etc.

 

It's a simple multi material with two composite materials (one for the front/back side and one for the left/right side (different tiling).

 

The problem is the bump mapping. Wall2.jpg looks ok, but when I add the other bricks in, it just looks funky. Is there a solution to my problem (I'm not really experienced with mapping)? I just dragged the diffuse material to the bump map, check setup.jpg.

 

BTW, don't mind the tiling