The Supplementary Materials referred to in this article can be found at

jws-dvdy.20617.tbl1.XLS11KSupporting Information file jws-dvdy.20617.tbl1.XLS
jws-dvdy.20617.anim.MPG22685KThis movie shows an accelerated view of a WT simulation. The time lapse covers 300,000 steps, equivalent to approximately 30 hours of pupal wing development. Dsh* concentration (white: high; dark blue: low) progressively builds up at the distal membrane of each cell. The Dsh* gradient vector (red) shows the direction of hair outgrowth. At the end of the simulation all hairs point distally.

Please note: Wiley Blackwell is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.