The point of the engine is that it can be easily used by everyone and that it is flexible. Rendering in another engine is somehow stupid and inconvenient for me. I have already done a lot, programming in C++ is already a habit for me. I like to rummage around in something complicated and incomprehensible. So I have achieved my goal, this is the first engine in the world that renders 3D with color support (there is no such thing with color anywhere) and other functions + it is the smallest 3D game by weight (as far as I know). For me, making graphics engines is a difficult task, but interesting (not to confuse game engines with graphics). My own graphics engine is enough for me.