gl.py

def setup():
    # One-time GL setup
    glClearColor(1, 1, 1, 1)
    glColor3f(1, 0, 0)
    glEnable(GL_DEPTH_TEST)
    glEnable(GL_CULL_FACE)

    # Uncomment this line for a wireframe view
    #glPolygonMode(GL_FRONT_AND_BACK, GL_LINE)

    # Simple light setup.  On Windows GL_LIGHT0 is enabled by default,
    # but this is not the case on Linux or Mac, so remember to always
    # include it.
    glEnable(GL_LIGHTING)
    glEnable(GL_LIGHT0)
    glEnable(GL_LIGHT1)

    # Define a simple function to create ctypes arrays of floats:
    def vec(*args):
        return (GLfloat * len(args))(*args)

    glLightfv(GL_LIGHT0, GL_POSITION, vec(.5, .5, 1, 0))
    glLightfv(GL_LIGHT0, GL_SPECULAR, vec(.5, .5, 1, 1))
    glLightfv(GL_LIGHT0, GL_DIFFUSE, vec(1, 1, 1, 1))
    glLightfv(GL_LIGHT1, GL_POSITION, vec(1, 0, .5, 0))
    glLightfv(GL_LIGHT1, GL_DIFFUSE, vec(.5, .5, .5, 1))
    glLightfv(GL_LIGHT1, GL_SPECULAR, vec(1, 1, 1, 1))

    glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, vec(0.5, 0, 0.3, 1))
    glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, vec(1, 1, 1, 1))
    glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 50)