Thank you.
Yes, of course, the texture is upside down, although I oriented it correctrly in Anim8or, so I should rotate it 180 degrees in Anim8or.
It seems like we should use the DirectX normal maps for Orbiter, not OpenGL.
Also, I should use a lower resolution texture, since it flicker (with a normal map).
By the way, I took this texture from
texturecan.com. It says that all the textures provided on this site are free and can be used for any purposes.
And I have a question regarding normal maps. I have the texture and its normal map in the same resolution:
View attachment 38930View attachment 38931
What is the point of using the normal map with the color texture if they have the same resolution? Can't we make a color texture with details presented on its normal map and get the same result as with the normal map?