Irrlicht Engine

OK, I see.

You are right, all coordinate system definitions are just matter of taste. However I find it a bit awkward, that many(most?) of the systems use right handed coordinate system (OpenGL, DirectX), but not Irrlicht. I guess this has some historical background.

Hi, I have realized that the .obj format uses the same coordinate system as OpenGL: X goes right, Y goes up, Z comes out of the screen. I have seen that in the obj loader there is a flipping on the X coordinate to switch from the right handed Wavefront coordinate system to the left handed Irrlicht s...