k3d/share/shaders/k3d_skin1.sl:137:color subsurfaceSkin(vector Vf; normal Nn; color skinColor, sheenColor;
k3d/share/shaders/k3d_skin1.sl:150:    C += Kr * sheenColor * Cl * (Ln . Nn) * pow(H . Nn, 4.);
k3d/share/shaders/k3d_skin1.sl:151:      C += Kr * sheenColor * Cl * (Ln . Nn) * .2;
k3d/share/shaders/k3d_skin1.sl:174:  color sheenColor = 1.;
k3d/share/shaders/k3d_skin1.sl:205:  color Csheen = sheenColor;
k3d/share/shaders/k3d_skin2.sl:63:color subsurfaceSkin(vector Vf; normal Nn; color skinColor, sheenColor;
k3d/share/shaders/k3d_skin2.sl:76:		C += Kr * sheenColor * Cl * (Ln . Nn) * pow(H . Nn, 4.);
k3d/share/shaders/k3d_skin2.sl:77:	    C += Kr * sheenColor * Cl * (Ln . Nn) * .2;
k3d/share/shaders/k3d_skin2.sl:92:surface k3d_skin2(color Ka = .5; color sheenColor = 1.;
k3d/share/shaders/k3d_skin2.sl:98:	Ci = Os * subsurfaceSkin(Vf, Nn, Cs, sheenColor, eta, thickness);
