Radix
Ludwig Hirschfeld Mack (11 July 1893, in Frankfurt-am-Main – 7 January 1965, in Allambie Heights, in Sydney) was a German-born Australian artist.
His formative education was 1912–1914 at Debschitz art school in Munich. He studied at the Bauhaus from 1919–24 and remained working there until 1926 where, along with Kurt Schwerdtfeger, he further developed the Farblichtspiele ('coloured-light-plays'), which used a projection device to produced moving colours on a transparent screen accompanied by music composed by Hirschfeld Mack. It is now regarded as an early form of multimedia. He was a participant, along with the former Bauhaus master Gertrud Grunow, in den II. Kongreß für Farbe-Ton-Forschung (Hamburg 1. - 5. Oktober 1930) (English: Second Congress for Colour-Sound Research, Hamburg). In 1923 he participated in the prestigious film festival "Der Absolute Film in Berlin with other film producers such as Hans Richter Viking Eggeling, Walter Ruttmann, Fernand Léger. Francis Picabia and Renée Clair. Music and colour theory remained lifelong interests, informing his art work in a number of media, and it was the inspiration for his well-respected and influential teaching.