k3d/share/shaders/k3d_uberlight.sl:349:  float unoccluded = 1;
k3d/share/shaders/k3d_uberlight.sl:358:      unoccluded *=
k3d/share/shaders/k3d_uberlight.sl:363:  return unoccluded;
k3d/share/shaders/k3d_uberlight.sl:486:	float unoccluded = 1;
k3d/share/shaders/k3d_uberlight.sl:488:	  unoccluded *=
k3d/share/shaders/k3d_uberlight.sl:507:	    unoccluded *= (comp(vis, 0) + comp(vis, 1) + comp(vis, 2)) / 3;
k3d/share/shaders/k3d_uberlight.sl:513:	    unoccluded *=
k3d/share/shaders/k3d_uberlight.sl:518:	lcol = mix(shadowcolor, lcol, unoccluded);
k3d/share/shaders/k3d_uberlight.sl:519:	__nonspecular = 1 - unoccluded * (1 - __nonspecular);
