AbstractPurely visual objects created by colour spreading are expected to behave like any other physical object. In particular, they are expected to block light and to cast shadows.Keywordsshadowscolour spreadingnonphysical objectsGet full access to this articleView all access options for this article.Get accessReferences1. Bressan P Mingolla E Spillmann L Watanabe T , 1997 “Neon color spreading: A review” Perception 26 1353–1366
