Comparison of the rest-frame B-band (right panels) and I-band (left panels) distributions in six magnitude-limited samples from z = 0.2 to z = 2.1. The histograms are VVDS-Deep measurements while the curves and associated shaded areas correspond to the mean and the 1σ field-to-field dispersion among the Omocks samples. The dashed curves are the mean distribution in the Omocks without including dust extinction in the model, while the dotted ones are the mean predictions of the Cmocks.