C++ OpenGL Lib in an OpenGLView?

Hi all -

I have a massive portable OpenGL library written in C++ that I currently use in Android Studio and XCode. This C++ library is basically the entire app while we use the Android/iOS dev environments for GUI only - events are passed down into this OpenGL lib to manipulate the app.

I've been poking around looking at cross-platform solutions as maintaining two copies of the GUI is becoming cumbersome - is it possible to render OpenGL elements natively through an OpenGLView in Xamarin.Forms (or any other view)? I'm assuming I'll have to put the actual binding logic into Xamarin.Android and Xamarin.iOS layers but am unable to find any examples of something like this.

I've looked at the mono sample SanAngeles and it looks close, but does anyone know how to do something like this in Xamarin.Forms?

Thanks!