M
Hi @bentraje.
First of all, I would like to remind you a Python Tag is executed at every scene execution. And modify the current scene representation (aka adding a keyframe, changing object data) while the scene execution may lead to some change not being correctly synchronized.
Moreover, this means for each frame you will modify this, so there is probably a better way for doing it, depending on your need. Maybe through a button user data? That can be caught in the Message methods.
Regarding how to creates keyframe take a look at the next example. Written for the script manager.
import c4d
def set_keyframe(obj, objParameter, frameList, valueList):
# Searches if there is already an existing Track for this parameter.
track = obj.FindCTrack(objParameter)
# Removes the track if it's already here.
if track is not None:
track.Remove()
# Creates a new track for this parameter.
track = c4d.CTrack(obj, objParameter)
# Inserts the track into the object
obj.InsertTrackSorted(track)
# Retrieves the curve representation of this track
curve = track.GetCurve()
# Iterates over the frame list and the valueList (count have to be the same)
for (frame, value) in zip(frameList, valueList):
# Calculates the equivalent of a BaseTime for a given frame
time = c4d.BaseTime(frame, obj.GetDocument().GetFps())
# Creates a keyframe in the memory
key = c4d.CKey()
# Fills the key with the default data
track.FillKey(doc, obj, key)
# Defines the y value
key.SetValue(curve, value)
# Defines the time value
key.SetTime(curve, time)
# Adds a key on the curve for the given frame
curve.InsertKey(key)
# Main function
def main():
set_keyframe(obj = doc.SearchObject("Cube"),
objParameter = c4d.DescID(c4d.DescLevel(c4d.ID_BASEOBJECT_REL_POSITION), c4d.DescLevel(c4d.VECTOR_Y)),
frameList = [0,30,45],
valueList = [100,-250,20])
c4d.EventAdd()
# Execute main()
if __name__=='__main__':
main()
If you have any question, please let me know.
Cheers,
Maxime.
