Ivan Tsyba wrote: > For visual comparison purposes, my vrml file contains reference gamut body, > because I thought that it shows surface colors limits. What reference gamut is that ? Do you mean the ICC Reference Medium Gamut ? If so, that's not all possible surface colors, just representative printing colors. > But today, "bright" orange marking pen on paper gave me a point that > located noticeably far away from reference gamut boundary. It could be fluorescent, and this would make it capable of emitting more light than is incident at certain wavelengths. > Where I can find optimal colors solid in form of .gam, .wrl or .icm file? A gamut of all possible spectral locus colors is very large, and fluorescent colors may be outside even that in brightness. Graeme Gill.