定义一个红色聚光灯源，一个漫反射的蓝色点光源

//light0 为漫反射的蓝色点光源
	glLightfv(GL_LIGHT0, GL_DIFFUSE, light0_diffuse);
	glLightfv(GL_LIGHT0, GL_POSITION, light0_position);
//light1 为红色聚光光源
	glLightfv(GL_LIGHT1, GL_AMBIENT, light1_ambient);
	glLightfv(GL_LIGHT1, GL_DIFFUSE, light1_diffuse);
	glLightfv(GL_LIGHT1, GL_SPECULAR, light1_specular);
	glLightfv(GL_LIGHT1, GL_POSITION, light1_position);

运行效果：