Hi there, I'm in the OP's team.
The problem we are facing is not the difference in brightness on top of the tank turret, those parts don't have a texture assigned to it yet, but a lambert material type I think (.mtl file says illum instead?), with some different colors.
The actual problem is that diffuse lighting is different on the cards:
Here are the contents of our .mtl file:
Code: Select all
newmtl surfaceShader1SG
illum 4
Kd 0.00 0.00 0.00
Ka 0.00 0.00 0.00
Tf 1.00 1.00 1.00
map_Kd ../textures/camo.jpg
Ni 1.00
newmtl surfaceShader2SG
illum 4
Kd 0.11 0.11 0.11
Ka 0.00 0.00 0.00
Tf 1.00 1.00 1.00
Ni 1.00
newmtl surfaceShader3SG
illum 4
Kd 0.00 0.00 0.00
Ka 0.00 0.00 0.00
Tf 1.00 1.00 1.00
Ni 1.00
Our camo texture actually was NPOT (500*500), that wasn't the cause though.
Thanks for helping so far.