Desktop OpenGL Surface
From Xojo Documentation
The OpenGLSurface control allows you to directly access an OpenGL object in your application. This provides an interface for OpenGL drawing. The commands that are available are not part of Xojo, but are part of the OpenGL standard. You will need to be familiar with the OpenGL API in order to program to this control.
The OpenGL module provides access to the OpenGL commands described in the OpenGL Web site and official guide.
Examples/Graphics and Multimedia/OpenGL