Bump map to normal map via Gimp: Flip Y only? Or Flip X AND Flip Y?

CHWT

Hey guys. I would like to know if I convert a DAZ character bump map to normal map via Gimp, do I only need to Flip Y axis? Or do I need to Flip X axis AND Flip Y axis? Thanks !

Matt_Castle

There's two main standards for normal mapping - OpenGL and DirectX, which each have opposite Y-directions. I don't immediately know which format GIMP exports, but DS uses OpenGL versions.

If you need to flip anything (and that's not a given), it's almost certainly only the Y axis.

CHWT

Matt_Castle said:

There's two main standards for normal mapping - OpenGL and DirectX, which each have opposite Y-directions. I don't immediately know which format GIMP exports, but DS uses OpenGL versions.

If you need to flip anything (and that's not a given), it's almost certainly only the Y axis.

Got it, thank you !