I'm trying to use an OpenGlView in a Xamarin Forms App (PCL) like in documentation : https://developer.xamarin.com/api/type/Xamarin.Forms.OpenGLView/
But, I always get this message : "Error CS0246: The type or namespace name `OpenTK' could not be found. Are you missing an assembly reference?".
Is there a way to use it from commun code ? I can't find any assembly to reference from PCL project.