Proper sprite flipping and mirroring.

[DaylightDreamer]

I did many attempts to flip my sprites. Any 3D or regular ones.

Seems there is no any proper functions to do so.
Only way is to re render the sprites using images.

Even if i try to do the flipping using TransformSprite3D the sprite is not visible anymore because its polygon is now looking the opposite direction.

Am i missing something here ? This should be standard function for gaming engine.

[DaylightDreamer]

I found some solutions disabling the back face culling on the DirectX level.
However this covers only windows system, how about Linux and Mac OS ?