Display tag keyframe [SOLVED]

On 16/06/2016 at 19:34, xxxxxxxx wrote:

Pulling my hair out trying to keyframe the current visibility % for a display tag on the currently active object in C4D R15 using Python

I'm trying to keyframe it at 0%, change it to 100% a few seconds later and then keyframe that.

Can someone help please with some tips or example code? I can make keyframes, move around the timeline, etc without issue just stuck on how to do display tag keyframe specifically.

On 16/06/2016 at 22:05, xxxxxxxx wrote:

#This script creates the visibility track on the display tag  
#Then adds two keys to the track's curve  
  
import c4d  
def main() :  
   
  obj = doc.GetActiveObject()  
  if not obj: return False  
  
  tag = obj.GetTag(5613)    #Get the display tag  
  if not tag: return False  
  
  tag[c4d.DISPLAYTAG_AFFECT_VISIBILITY] = True  
  
  if not tag.FindCTrack(c4d.DescID(c4d.DescLevel(c4d.DISPLAYTAG_VISIBILITY))) :      
  
      visTrack = c4d.CTrack(tag, c4d.DescID(c4d.DescLevel(c4d.DISPLAYTAG_VISIBILITY)))  
      tag.InsertTrackSorted(visTrack)  
    
      curve = visTrack.GetCurve()  
      ckey = curve.AddKey(c4d.BaseTime(0.0))['key']  #Creates a key at frame 0  
      ckey.SetValue(curve, 0.4)                      #40%  
      ckey = curve.AddKey(c4d.BaseTime(1.0))['key']  #Creates a key at frame 30  
      ckey.SetValue(curve, 1.0)                      #100%        
  
  c4d.EventAdd()  
  c4d.DrawViews(c4d.DRAWFLAGS_FORCEFULLREDRAW)       #Update the viewport and the red dot icon  
  
if __name__=='__main__':  
  main()

-ScottA

On 17/06/2016 at 01:24, xxxxxxxx wrote:

Hello,

as you can see in Scott's example animation data is stored in a animation track represented by the class CTrack. For each animated parameter the host object stores a CTrack object. This CTrack can be obtained with FindCTrack(), if no Ctrack exsists one can be created and then added to the host object using InsertTrackSorted().

A CTrack contains a CCurve and that CCurve contains the actual animation keyframes. These keyframes are represented by CKey objects. You can add a new key to a curve using AddKey().

Best wishes,
Sebastian

On 17/06/2016 at 08:46, xxxxxxxx wrote:

Thank you Scott for the demonstration and Sebastian for the explanation! It finally works 😄