Banding issues when I export Normal and Reimport.

micropolius

Hi, I just completed my textures bake in Substance Painter 2. I wanted to add extra details to my normal so I exported the normal map to photoshop as .TGA for editing purposes.
Everytime I re-import them as .32 bit TIFF I get banding issues. Can someone explain what I am doing wrong and how to resolve this issue?
What are the correct export and import settings?
I just want to add some extra normal map detail to my existing normal map.

Jerc

Export your normal from Painter in a format that supports 16bits, like png or tiff.

micropolius

Thanks !