Additionally, all textures have to be in the right DDS format:- diffuse has to be DXT1 format
- normal map has to be 3Dc/ATI2 format
- opacity map has to be ATI1 format
- roughness map has to be ATI1 format
- material reflectance map has to be ATI1 format
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[li]Roughness map and material reflectance map allow you to define the whole material in textures so you can have one single mesh and multiple materials and the mesh is still rendered in one draw call. Usually the reflectance is not as important as the roughness, in most case the roughness texture map is enough[/li][/list]
We don't have ATI1 on our list for PS
DXT1 RGB 4 bpp | no alpha
3Dc XY 8 bpp | Normal Map
DXT5 ARGB 8 bpp | interpolated alpha
Is what we have, any help would be welcome.