I have noticed that sometimes when I model some objects, some face later on appear to be a bit darker than others. Especially after texturing. I have checked the normals and they are pointing in the right direction. I have tried recalculating normals to see whether it fixes anything but no luck.
I also tried rotating the objects to see whether it is an issue with lighting. Sadly it isn't.
Also, this isn't caused by a normal or bump texture because the problem appears even before I start adding those. This is the third model I am experiencing this on.
I will appreciate even just an explanation to understand why this happens.
Thanks in advance.