Unrealistic Lighting?

Hi,

I’m trying to make a very simple room. The problem is that when I make the wall, it’s a lot darker than the floor (Even though they have the excact same texture.)

How can I make the lighting more realistic?

[15474-dark+wall+problem.png|15474]

That is realistic, depending on the lighting. If that’s not what you want, then change the light to a different type, such as a point light.