Well just a raytracer in Visual basic 6, thus the name VB6 raytracer. Not because it is easy or logical, but because it is hard. I know this is not the right language to write a raytracer, see it as a stubborn POC that it is still somehow possible.
GLE is a library of C functions that draw
extruded surfaces, including surfaces of revolution,
sweeps, tubes, polycones, polycylinders and helicoids.
GLE uses the OpenGL(R) API to perform the actual rendering.