I'm constructing an eye tracking application where I need to make a rudimentary physics engine. I'm constrained to visual C# do to the API of the eyetracker. The engine is going to need some graphics, and the graphic capabilities of visual C# are not up to the task. I need a graphics library that can do transparency, rotation, scaling, etc basically all the cool stuff I can do with Opengl with texture mapping. However, I'm having trouble finding a good tutorial on how to use Opengl in visual C#. If anyone can provide a link, or suggest an alternative library, I'd be thankful.