Normal Map Problem - with no cause! Please help
I am creating modular pavment at the moment.
History: modeled/unwraped in 3ds Max (created 2nd UV channel as well), then sculpted in Zbrush, baked in Topogun with fliped green channel, imported in UDK with TC_Normalmap compression. All operations were done at the same time for all modular pieces.
Screenshots: 1-3 without normalmaps, 4 - with.
Problem: When I plug normal maps, corner piece turn darker, other ones turn lighter! As I said - it was baked at the same with same settings.
I am desperate, pleeease guys, help me figure it out!