What mode Graphic is more better for this pc d3d9 or opengl?

[[Unknown]]

OpenGL supports everything we need, largely, so there's no motivation to implement a DirectX 11 backend. Someone may implement it at some point for speed reasons (although, it's definitely no sure thing which would be faster, so it would just be a very time-consuming experiment), or just for fun, or etc. but don't count on it happening soon.

DirectX 9 does not support everything we need, afaik, although it's close. The main reason we introduced DirectX 9 was for users who simply can't use OpenGL (especially on older PCs.) So in a way, it's basically "compatibility mode."

There are some games which are faster using DirectX 9, though most of the time OpenGL is better. There's also the benefit of external programs which only support DirectX (like 3D support and etc.) So we will probably continue to improve it.

But, if you can run both, most of the time OpenGL is the better call.

-[Unknown]