Photoshop Export Causing Weird Shading??

Shadow2Matrix

Hey Guys,
So in the image provided I have to LP assets with two identical normal maps.
The issue at hand is that one is directly applied from a 3ds max bake. The other is the same bake map but brought into photoshop. NO TWEAKS WERE MADE, however, when exported and brought back in I get this ugly weird shading? Any ideas on whats causing it and a quick fix for it?

I have been looking and saw that it may have been errors exporting and that I have to invert the green channel in Photoshop and even when I tested that, it gave no good results. Just the same shading but well, inverted. Am I missing something here?

Shadow2Matrix

BTW both formats are PNG

Eric Chadwick

How are the materials set up exactly, and are you disabling the gamma for those maps?

Shadow2Matrix

No gamma is not disabled. I was not aware I may have to disable gamma. I just never had this issue before. Always used the same setup. Then again, I was never baking properly until now so I do not know if I always had this issue or not. What bugs me is that they are both literally the same normal texture. Just one is the max bake and the other is also the max bake but just saved as a PNG inside photoshop.
Its just a basic shader.
The bump Node has a normal map applied for both and then a bitmap of the actual textur in the normal. That is all.

Shadow2Matrix

@Eric Chadwick. I see why you asked. I finaly bumped into an old thread and that solved the issue. So I assume max automatically tried to readjust gamma for incoming objects. I turned it off and it did the trick but everything got real dark so I turned it back on and it still looks good. Only issue is materials got wayyyy darker. Idk if that will be a problem in the future but Thank You!

http://www.polycount.com/forum/showthread.php?t=95668