Larceny-gl is a project mainly written in Scheme, it's free.
OpenGL libraries for Larceny Scheme
$ cd larceny-gl
$ larceny -err5rs
(import (larceny compiler))
(compile-library "gl.sls")
(compile-library "glut.sls")
(compile-library "glu.sls")
Add path to 'larceny-gl' to your LARCENY_LIBPATH.