I created a 3D figure and after I wanted to see how a texture applies to it I found out that it looks partially black, but cannot figure out why. I tried recalculating normals, but it didn't help. Can someone please help me?
It's not a problem. You are using Blender Render instead of Blender Cycles. If you want to continue to use Blender Render, you just need to add a new light source to iluminate that side. It is just a hard shadow! You can add a sun, and rotate it to be horizontal ilumination, as an example.