Directx 12 Graphics engine in C++\CX which can be used in C# and Xaml

I already have a basic graphics engine created and example application which uses DirectX 12 (Direct 3D and DXGI), C++\CX, C# and Xaml. However this needs expanding on and I don't have the time. The DLL behind is written in C++\CX but the user facing parts are in C#\Xaml so who ever takes on this project would need to be aware of this and be capable of writing in all the above languages. The project it's self is focussed mainly on the DLL side of things but will require the developer to write a few C# application examples that use the above DLL interfaces. Bear in mind that this is only the first part to a much larger project and who ever gets this project and delivers impressive results, have the potential to get a lot more work in the future. The main interfaces/classes required: - core commands (clear back buffer, set viewport, set swapchain etc) - render target (set as currently active, set camera, save etc) - camera (move, rotate etc) - 3d mesh (load, save, play animation, render etc) - Shader (small set of default shader functions) - texture (loading, applying to 3d mesh, etc) - light (position, rotation, color, etc) - 2d billboard (sprites) (apply texture, position, rotation etc) Please be aware that some of the above already have classes/interfaces created, but these will need to be expanded on (extra functions etc).