This research aims to analyse whether the regular use of rendering technologies (RT) modifies the cognitive skills for interpreting graphics and creating draws who use them. Note: RT are those that facilitate the representation, understanding and creation of three-dimensional objects and synthetic environments. The group is studying the newly enrolled students of engineering degrees just before starting the study of the subject graphic expression of the first year. The choice of this group is given by the age of its participants: theoretically, have lived all the years of his life surrounded by computers. Does growing up surrounded by technology that helps us in graphics makes us more or less competent in that discipline?