Script Befehl

WDP

Hi!
Sorry I'm new to Python and still have to learn a lot, I've tested the Github example thanks for that, but I still can't get a keyframe to control my object visibility in Stage Animation?
It would be very nice of you if you could help me again.
Thank you very much!

Manuel

Hi,

You should also describe where you are stuck instead of only talking about the final goal.. I've created you this script with comment. Please read them and ask question if there are things you do not understand.

To make it simple, i did not implemented the undo system. You can have a look at our manual to understand a bit better what you have to do. And ask questions

Cheers,
Manuel

from typing import Optional
import c4d



def SwitchVisibilityAndCreateKeyFrame (obj) -> None:
    # Switch the visibility of the object and create a keyframe at the current time of the document.
    # If the keyframe already exist, it will update the keyframe and switch between ON and OFF.

    # DescID allow to define how parameter can be access and what data type they are made of.
    # Just like parameter, DescID can be composed of several level to access the correct data.
    # Those levels composed some sort of path to follow to retrieve the correct data.
    # Define two desscID to access the editor and render visibility of the object.
    trackIDs = []
    trackIDs.append(c4d.DescID(c4d.DescLevel(c4d.ID_BASEOBJECT_VISIBILITY_EDITOR, c4d.DTYPE_LONG,0)))
    trackIDs.append(c4d.DescID(c4d.DescLevel(c4d.ID_BASEOBJECT_VISIBILITY_RENDER, c4d.DTYPE_LONG,0)))
    for trackID in trackIDs:
        # Define the parameter value in the object itself. If it is undef we define it to off.
        # Otherwise, we switch the value.
        if obj[trackID] == c4d.OBJECT_UNDEF:
            obj[trackID] = c4d.OBJECT_OFF
        else:
            obj[trackID] = obj[trackID] ^ 1
        # With the track ID, FindCTrack can be used to retrieve if a track exist for this object.
        track = obj.FindCTrack(trackID)
        if track is None:
            #if there is no track, create it and insert it in the object.
            track = c4d.CTrack(obj, trackID)
            if track is None:
                raise RuntimeError("Cannot create the track.")
            obj.InsertTrackSorted(track)

        # Retrieve the curve from the track. For more information see our track manual
        curve = track.GetCurve()
        if curve is None:
            raise RuntimeError("Failed to retrieve the curves, Object may not have curves.")

        # Retrieve the current time of the document so the key can be added at the right place
        currentTime = doc.GetTime()
        keyDict = curve.AddKey(currentTime)

        # Checks if the key have been added
        if keyDict is None:
            raise MemoryError("Failed to create a key")

        # Retrieves the inserted key and its index
        key = keyDict["key"]
        keyIndex = keyDict["nidx"]

        # Sets the value of the key. Because in this case, the function SetGeData must be used.
        # SetValue should only be used for Float values.
        key.SetGeData(curve, obj[trackID])
        
        # Mandatory: Fill the key with default settings
        curve.SetKeyDefault(doc, keyIndex)

        # Changes it's interpolation to step.
        key.SetInterpolation(curve, c4d.CINTERPOLATION_STEP)




def main() -> None:
    # Called when the plugin is selected by the user. Similar to CommandData.Execute.
    # Retrieve the active objects
    allobj = doc.GetActiveObjects(c4d.GETACTIVEOBJECTFLAGS_CHILDREN)
    for obj in allobj:
        SwitchVisibilityAndCreateKeyFrame(obj)
    c4d.EventAdd()

if __name__=='__main__':
    main()

WDP

Thank you very much!!

ferdinand

Hello @WDP,

without any further questions and other postings, we will consider this topic as solved and flag it as such by Friday, 17/06/2022.

Thank you for your understanding,
Ferdinand