Rough, cold, porous, fibrous, smooth, leathery, velvety, soft, pointed. The visual appearance of the surface depends on the contrast between its peaks and valleys. With a high contrast, the viewer can grasp the texture of the surface not only haptically but also visually. How do two different textures work side by side? By contrasting two surfaces, the texture of one surface can be further emphasized. In contrast to hard and rough surfaces, smooth structures appear even smoother. Can textures from nature and man-made materials be distinguished? What is natural Which landscape is made of plastic and which is made of ice? Desaturation in black and white images and zooming in blur the boundaries between nature and industry.