Problem with displacement maps I'm not so familiar with Blender and have a problem with displacement map.
I use software called "CrazyBump" and it generates specularity, displacement, occlusion, color and normal maps itself.

My intention is to make plaster material which is the material of the wall look more realistic. That' s why I want to use displacement map to change the look of the wall. However, it somehow won't work like this. The material of the wall is not changing its' shape, it's the wall itself..

The displacement map is right under this text:



I really tend to think that something is really wrong with my displacement map and doesn' t work right.

So here's the house with displacement map.


I am clueless what to do next as I have tried fixing this problem on my own for whole day already and nothing seems to be working. Maybe some of you have encountered this problem earlier and could suggest any solutions..
The source for the displacement map in this case has to be an image or procedural texture, not the model itself. One way to do what you want would be to get or create tileable plaster texture first (look for "tile plaster texture bump" on a search engine), then create a material just for the walls, assign it and unwrapp the walls as you see fit.