Cannot set layer parameter for capsules in 2024.3.1

robpayne

In 2024.3.1 python cannot set the layer parameter of a Capsule object. Other object types seem to be unaffected. Console shows the error: “AttributeError: parameter set failed”
Screenshot 2024-02-23 at 18.21.31.jpeg

Reproduction:

Open Cinema 4D
Add new layer in the Layer Manager
Add a capsule object to the scene (e.g. Polygon Bevel)
Run the script below in the Script Manager to set layer parameter for all objects

import c4d

def main() -> None:
    
    # Get first layer
    myLayer = doc.GetLayerObjectRoot().GetDown()
    
    # Get objects in scene
    allObjects = doc.GetObjects()
    
    # Set layer attribute for objects in scene
    for i in range(len(allObjects)):
        allObjects[i][c4d.ID_LAYER_LINK] = myLayer
        c4d.EventAdd()
    
if __name__ == '__main__':
    main()

Result

The capsule layer is NOT set
Error appears in console in the python tab

Versions

[NOK] 2024.3.1
[OK] 2024.2.0

Tested on:

Windows 11 Pro (23H2)
OSX Monterey 12.6.3

ferdinand

Very nice bug report, thank you for reading the guidelines. We will have a look on Monday

m_adam

Hi thanks for the detailed report, I fixed the issue it be available in the next non-hotfix release.

As a workaround you can do

dId = c4d.DescID(c4d.ID_LAYER_LINK)
allObjects[i][dId] = myLayer

Cheers,
Maxime.