This is nice, but it doesn't seem to like pixel art much - even with every smoothing option I can find at 0, it's still smoothing edges and looks gross in the editor.
hi,
I realized that the problem is not the normal map. In first place, y use linear filters in opengl rendering, which softens the image when scaled. That can be changed for a future version. The second and more difficult problem is that the shader does not care about pixel when i calculate lighting, so the lighting effect get softened.. i'll see if i can change that for next release. Anyway, normal map are ok and using them in an engine should work fine.