void InitGL(GL gl)
{
gl.glClearColor(0.8f, 0.8f, 0.8f, 0.5f);
gl.glClearDepth(1.0);
gl.glEnable(GL.GL_DEPTH_TEST);
gl.glDepthFunc(GL.GL_LEQUAL);
gl.glHint(GL.GL_PERSPECTIVE_CORRECTION_HINT, GL.GL_NICEST);
float[] light_ambient = { 0.3f, 0.3f, 0.3f, 1.0f };
float[] light_diffuse = { 1.0f, 1.0f, 1.0f, 1.0f };
float[] light_specular = { 0.35f, 0.35f, 0.35f, 1.0f };
float[] light_position = { 0, 10.0f, 20.0f, 1.0f };
gl.glShadeModel(GL.GL_SMOOTH);
gl.glLightfv(GL.GL_LIGHT0, GL.GL_POSITION, light_position);
gl.glLightfv(GL.GL_LIGHT0,GL.GL_AMBIENT, light_ambient);
gl.glLightfv(GL.GL_LIGHT0, GL.GL_DIFFUSE, light_diffuse);
gl.glLightfv(GL.GL_LIGHT0, GL.GL_SPECULAR, light_specular);
gl.glLightModelf(GL.GL_LIGHT_MODEL_LOCAL_VIEWER, GL.GL_TRUE);
gl.glEnable(GL.GL_LIGHT0);
gl.glEnable(GL.GL_LIGHTING);
}