Hello,
I found some strange issue, not sure if it limitation or just bug. I’ve assets which used UDIM, all textures was done in Substane painter and exported with UE packed preset into EXR texture format.
In game engine i’ve noticed so my normal map works wrong, I was starting investigate this issue and found next - if we using UDIM and exr image format, normal maps works wrong, but if we convert EXR into TGA all is turn okay. ( This is issue appears only with UDIMs, if we have one texture set and exr normal map, all is okay).
3 - udim’s EXR.
3 - udim’s tga.
If someone know why we have this is strange issue, would great to hear it.