k3d/share/shaders/k3d_skin1.sl:24: * blemishmap = Use a grayscale map to control where the belmishes will be more visible
k3d/share/shaders/k3d_skin1.sl:26: * Oily,oilmap = controls how oily the skin looks. Use a grayscale map to contol
k3d/share/shaders/k3d_strata.sl:38:		   float yscale = 2; float turbscale = 0.1; float offset = 0;
k3d/share/shaders/k3d_strata.sl:57:  cmap = yscale * ycomp(PP) + turbscale * turb - offset;
k3d/share/shaders/k3d_texblender.sl:108:    if (comp(newc,1)==-1) newc=comp(newc,0); /* treat a 1-channel texture map as a greyscale */
