Blender Model Lighting Problem

I am having a problem about lighting of my model.When i import this model ;



It looks like this;




So i think the problem is in blender.Lamp doesnt illuminate the bottom of the model.How can i solve that?Thanks for help...

 

Still couldn't find the solution.I will be glad if you guys can help because i cant continue to next step without solving this problem.Thanks for help...

 

I think you are running into a typical 2-sided model type of problem. Geometry generally is one sided. Depending on view settings in Blender, you might be able to see both sides the same, but the normals only point one direction. That direction is the side that will get lit up both in Blender Renders and in Unity.

If you want the cylinder to be viewed both inside and outside, you need to make the model have a thickness. It can be a really small thickness if you want, but you need vertices for both inside and outside walls if you want both to be seen.

 

It worked thank you so much.