Amano, ToshiyukiJean-Marie NormandMaki SugimotoVeronica Sundstedt2023-12-042023-12-042023978-3-03868-218-91727-530Xhttps://doi.org/10.2312/egve.20231308https://diglib.eg.org:443/handle/10.2312/egve20231308Pixel Feedback Animation (PFA), a technique that uses projector-camera feedback, has emerged as a dynamic illumination method introducing variations in color and brightness for expressive purposes. Notably, the deliberate application of specific image processing techniques during the projector-camera feedback loop has unveiled the potential to generate patterns reminiscent of Turing patterns solutions to reaction-diffusion equations. However, the intrinsic nature of PFA's projection-camera system consists of image capture and reflective properties of the projection surface, which create illumination patterns. In this paper, a comprehensive investigation into the underlying mechanisms of PFA is presented, revealing its inherent connection to reaction-diffusion systems. The study explores the emergence of distinct PFA patterns intricately influenced by variations in object surface reflectivity and coloration.Attribution 4.0 International LicenseCCS Concepts: Human-centered computing -> Mixed / augmented reality; Computing methodologies -> Mixed / augmented realityHuman centered computingMixed / augmented realityComputing methodologiesMixed / augmented reality10.2312/egve.2023130811-188 pages