Normal map wont act right in GODOT engine

hello

i have this ak model that i wanted to export to godot. i used both bettercollada export and the gltf exporter

both work well in term of exporting the model but in godot when i apply my normal map, i dont get the result im looking for.

i checked the model and the normal map in unity and sketchfab, it worked well !

does anyone know what im doing wrong here?

normal map is attached, im using godot build 3.0.6 stable

  • n647 replied

    I never used godot so I may be wrong, but I think it uses directx, while blender uses openGL, so that may be the problem, try inverting the green channel on the normal map see if that works