The question is simple, is it possible to create a mesh with openGL and then assign it to an entity?

Thanks in advance.

OpenGL doesn't provide means to create meshes or imposes any kind of structure that you have to use, it only gives you ways to communicate your mesh layout to the underlying graphics hardware. So what exactly do you want to achieve here?

well im trying to create a dynamic mesh, something you can change while the program is runnig, the solution i got was using the D3DXCreateMesh function, but it freezes the computer for a moment and i dont want that, thats why i decide to try with openGL cause it creates the meses fast without freezing the computer