Eggeling's "Symphonie Diagonale" from 1924 is a filigree of lines, while Richter's (except for a brief diagonal figure) maintains horizontality, more in keeping with the principles articulated by Piet Mondrian and (later) Josef Albers.
WSJ: Avant-Garde Film's Godfather | Hans Richter | Los Angeles County Museum of Art | Richard B. Woodward