Extile layered materials were used for the environment material texturing. Extile layered materials can be found in Extile Plus and represents the most versatile way to layer materials in a non destructive and easy way coupled with some of the most powerful non-repetitive functions giving you the power to texture any type of environment with absolute control and with great speed.
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Example II: For the walls I used different blends to achieve the desired look. I used a height blend to create the white top border that could be adjusted at any height and with varying levels of blending. To push the material even further and to give the extra realism needed I created a top and bottom dirt mask. I used two height blends to achieve this to give me full control but you can also achieve this effect simultaneously using the 2-Edge Mask if so desired.