Exported object has wierd "normals"

I’ve made an object which is just a simple fence. I have a problem with cube - it has just texture assigned - without normal texture. I tryied to rotate that object to make it Y-up. In game 3d editor normal of its object looks like this:

Maybe you know any tool how to fix it, because If I export it with maya, normals are good.
Thanks for help,


Actually you shouldn’t have that problem:
I’m working with the GIANTS editor for a while now and exchanging files beween GE and blender worked flawlessly. Do you use the GIANTS addon in blender for exporting? This tool prepares everything the right way so that normals, textures and space koordinates are matching for the game engine…