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glLight*()

GLfloat light0_ambient[ ] = {0.0, 0.1, 0.0, 1.0};

GLfloat light0_diffuse[ ] = {0.0, 0.0, 1.0, 1.0};

GLfloat light0_specular[ ] = {1.0, 1.0, 1.0, 1.0};

GLfloat light0_position[ ] = {1.0, 2.0, 3.0, 1.0};

glLightfv(GL_LIGHT0, GL_POSITION, light0_position);

glLightfv(GL_LIGHT0, GL_AMBIENT, light0_ambient);

glLightfv(GL_LIGHT0, GL_DIFFUSE, light0_diffuse);

glLightfv(GL_LIGHT0, GL_SPECULAR, light0_specular);

glEnable(GL_LIGHT0);

glEnable(GL_LIGHTING);