Is it possible to render custom objects in the Unity game window using native (opengl) code ?

Hi,

I am using a closed source 3rd party lib/dll to draw a custom 3d object in my game.

I have created the appropriate native code (c++/opengl) unity plugins for iOS and Android.

The custom object renders on my iOS and Android devices appropriately.

However, this object does not currently render in the Unity Game window.

I wanted to ask if it is possible and/or officially supported to render something custom in the unity game window using native code (c++/opengl).

If so, can it be done with a game object that requires the use of a .a or .dll file ?

If not, is there an appropriate or supported way to accomplish this ?