There exist several studies on the visual impressions of material surfaces. However, the results of these studies reveal slight differences with regard to the dimensions of these surfaces. The authors carried out two experiments in which the subjects, situated at four different distances from 20 material surfaces, rated their impressions of the latter. The results indicated that there are three main dimensions regarding the impressions of material surfaces, even though the shifts of impression ratings, which depend on the subjects' distance from the materials, occur with regard to several material surfaces characterized by brilliance or asperity.
