Artists masterfully manipulate opacity contrast in metal sculptures to evoke a sense of depth and dimensionality. By varying the thickness, texture, and finish of metal surfaces, they create layers that interact with light differently. Thinner, polished sections appear translucent, allowing light to pass through, while denser, matte areas absorb light, casting shadows. This interplay between light and dark enhances the sculpture's three-dimensionality, guiding the viewer's eye through the piece. Techniques like perforation, etching, and patination further refine opacity contrasts, adding complexity. The result is a dynamic artwork that shifts in appearance with changing perspectives, engaging the audience in a tactile visual experience.