I got this strage result from viewgam: viewgam -i -cn -t0.5 -s /Users/klaus/argyll/gamutvolume2/sRGB.gam -ce -t0 -s Frau_LT_170408.gam FrauVSsRGB.wrl Intersecting volume = 0.0 cubic units '/Users/klaus/argyll/gamutvolume2/sRGB.gam' volume = 833600.9 cubic units, intersect = 0.00% 'Frau_LT_170408.gam' volume = 271126.3 cubic units, intersect = 0.00% The vrml file looks reasonable anyway. (see attachment) Klaus