Create folder in Volume Builder

datamilch

hi there,
i am trying to add a folder/group to the object list of a volume builder.
but i have no idea how. there is nothing in the the documentation and no examples either.
is this even possible?

as an alternative i could probably nest multiple volume builders, but folders would be more elegant i think.

the current test code:

def main() -> None:
   
    # create objects
    null = c4d.BaseObject( c4d.Onull )
    cube = c4d.BaseObject( c4d.Ocube )
    hole = c4d.BaseObject( c4d.Ocylinder )
    hole[c4d.PRIM_CYLINDER_HEIGHT] = 300
   
    # create volume builder
    vb = c4d.BaseObject( c4d.Ovolumebuilder )
    vm = c4d.BaseObject( c4d.Ovolumemesher )
   
    # insert into scene
    doc.InsertObject( null )
    cube.InsertUnderLast( null )
    hole.InsertUnderLast( null )
    vm.InsertUnderLast( null )
    vb.InsertUnderLast( vm )

    # insert into volume builder
    vb.AddSceneObject( cube )
    vb.AddSceneObject( hole )
    vb.SetBoolMode( 1, c4d.BOOLTYPE_DIFF )

    c4d.CallCommand(100004748) # unfold all
    c4d.EventAdd()
    return

if __name__ == '__main__':
    main()

i_mazlov

Hi @datamilch,

Even though technically creating a folder inside the volume builder is possible (please check the code snippet below), you should do this at your own risk as I'm pretty sure this is not intended to be used from our public API this way.

I will bring this topic up to the corresponding developer, once he is back from vacation, but I cannot give you any promises.

Hence, I'm leaving all related follow up topics (e.g. how to rename the folder or how to put the object inside the folder, etc..) without any solution, as there's no good solution for it at the moment (if there's even any )

Cheers,
Ilia

The code showing how to create folder inside the VolumeBuilder:

import c4d
def main() -> None:
    cube = c4d.BaseObject(c4d.Ocube)
    vb = c4d.BaseObject(c4d.Ovolumebuilder)
    doc.InsertObject(cube)
    doc.InsertObject(vb)
    vb.AddSceneObject(cube)

    data = { 'descid': c4d.ID_VOLUMEBUILDER_ADDMISCBUTTON }
    ID_VOLUMELIST_ADDFOLDER = 2  # this ID is excluded from our public API
    vb[c4d.ID_VOLUMEBUILDER_ADDMISCBUTTON] = ID_VOLUMELIST_ADDFOLDER
    vb.Message(c4d.MSG_DESCRIPTION_CHECKUPDATE, data)
    
    c4d.EventAdd()

if __name__ == '__main__':
    main()

datamilch

hi @i_mazlov,
thanks for the answer. good to know about this status / limitation.
for my current case I found a solution without folders..