Material properties and image cues for convincing grapes: The know-how of the 17th-century pictorial recipe by Willem Beurs

Painters mastered replicating the regularities of the visual patterns that we use to infer different materials and their properties, via meticulous observation of the way light reveals the world's textures. The convincing depiction of bunches of grapes is particularly interesting. A convincing portrayal of grapes requires a balanced...