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

CHWTCHWT Posts: 1,138
in The Commons
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 !

Comments

  • Matt_CastleMatt_Castle Posts: 2,344

    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.

  • CHWTCHWT Posts: 1,138
    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 !
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