chickadee » leptonic » pix-mod-hue

pix-mod-hueprocedure
  • in - PPIXD - #f or PPIX (see NOTE above)
  • in - PPIX
  • in - FACTOR - amount -1.0 to 1.0 (1.0/-1.0 == 360 degrees, no hue change)
  • returns: modified ppix or #f if error.