k3d/share/shaders/k3d_noisysmoke.sl:55:  color li, last_li, lighttau;
k3d/share/shaders/k3d_noisysmoke.sl:86:	  lighttau = .5 * ss * (li * dtau + last_li * last_dtau);
k3d/share/shaders/k3d_noisysmoke.sl:92:	  dC = lighttau * dO;
k3d/share/shaders/k3d_smoke.sl:115:      color lighttau =
k3d/share/shaders/k3d_smoke.sl:119:      Cv += (1 - Ov) * lighttau;
k3d/share/shaders/k3d_smoke2.sl:102:  color li, last_li, lighttau;
k3d/share/shaders/k3d_smoke2.sl:131:	  lighttau = .5 * ss * (li*dtau + last_li*last_dtau);
k3d/share/shaders/k3d_smoke2.sl:135:	  dC = lighttau * dO;
