Edrex Fontanilla is a new media artist whose practice fuses sculptural and computational methods to examine perception, materiality, and temporality. For twenty-five years he has built objects that sit between sculpture and projection, between writing and pattern, and between place and liminal space, and has asked the viewer to interrogate their perception of reality.

In 2006 Fontanilla introduced the term mutable sculpture. A mutable sculpture layers projected image and physical surface so that the object takes on the properties of a virtual correlate, and at any moment what the viewer sees could be naturally occurring emanations, or digital fabrications. He first used the term as invited plenary speaker at the Digital Humanities Computing Summer Institute at the University of Victoria, set it out in the proceedings of the Ammerman Center's Biennial Symposium on Arts and Technology in 2008, and once again in 2014.