k3d/share/shaders/k3d_celld.sl:42:	float voro_dist = 1 - step (voro_step, voro_f2 - voro_f1);
k3d/share/shaders/k3d_celld.sl:45:		voro_dist = 0;
k3d/share/shaders/k3d_celld.sl:47:	VoroVal = voro_dist;
k3d/share/shaders/k3d_celld.sl:48:	objP += Kvoro * voro_dist * Nn;
