Source code for nukescripts.animation

# Copyright (c) 2009 The Foundry Visionmongers Ltd.  All Rights Reserved.

import nuke_internal as nuke

[docs]def animation_loop():
  p = nuke.Panel("Loop")
  p.addSingleLineInput("First frame of loop:", 1)
  p.addSingleLineInput("Last frame of loop:", nuke.animationEnd())
  result = p.show()
  if result:
    anim = nuke.animations()
    for i in anim:
      loopstart = p.value("First frame of loop:")
      loopend = p.value("Last frame of loop:")
      nuke.animation(i, "expression", ("curve(((frame-"+loopstart+")%("+loopend+"-"+loopstart+"+1))+"+loopstart+")",))


[docs]def animation_negate():
  anim = nuke.animations()
  for i in anim:
    expr = "-("+nuke.animation(i, "expression")+")"
    nuke.animation(i, "expression", (expr,))


[docs]def animation_reverse():
  a = nuke.animations()
  for i in a:
    anim = nuke.animation(i, "expression")
    if anim is not None and anim == "curve(first_frame+last_frame-frame)":
      nuke.animation(i, "expression", ("curve",))
    else:
      nuke.animation(i, "expression", ("curve(first_frame+last_frame-frame)",))