@ferdinand Thank you very much for your help, I have solved the problem!

hi @i_mazlov, ok, good to know. i also tried to insert the thicken generator into a temp_doc, activating the selections and executing passes. but that didn't work either.

@i_mazlov Thank you for your reply. That was very helpful!

Good to hear that you found your solution!

@ferdinand Great thanks!

Hi just to let you know that the bug has been fixed, this will be available in one of the next releases. I will post on this topic once the fix is available. Cheers, Maxime.

@ferdinand Gotcha. Thanks for the response. c4d.CallButton(op, c4d.ID_BASEOBJECT_FROZEN_RESET) works as expected.

Hi Ferdinand, I just wanted to thank you for your invaluable help! Thanks to your guidance, I was able to solve my issue with toggling the default gravity in Cinema 4D. Honestly, I didn't think it would be this complicated! For anyone who might encounter a similar problem, here's the script I used, based on your code. It allows access to the global default simulation scene in the simulation hook and toggles the gravity value between 0 and -981: import c4d doc: c4d.documents.BaseDocument # The currently active document. op: c4d.BaseObject | None # The primary selected object in the document. Can be None. c4d.SHsimulation: int = 1057220 # The ID of the simulation hook. def main() -> None: """Called by Cinema 4D when the script is executed.""" # Get the simulation hook of the active document simulationHook: c4d.BaseList2D | None = doc.FindSceneHook(c4d.SHsimulation) if not simulationHook: raise RuntimeError("Cannot find the simulation hook.") # Retrieve the object branch from the simulation hook branches: list[dict] = simulationHook.GetBranchInfo() data: dict | None = next(n for n in branches if n["id"] == c4d.Obase) # We're looking for the object branch. if not data: raise RuntimeError("Malformed simulation hook with missing object branch.") # Get the simulation scene simulationScene: c4d.BaseObject | None = data["head"].GetFirst() if not simulationScene: raise RuntimeError("Malformed simulation hook with missing object branch children.") # Toggle gravity between 0 and -981 if simulationScene[c4d.PBDSCENE_DEFAULTGRAVITY] == 0: simulationScene[c4d.PBDSCENE_DEFAULTGRAVITY] = -981 else: simulationScene[c4d.PBDSCENE_DEFAULTGRAVITY] = 0 c4d.EventAdd() if __name__ == '__main__': main() This script toggles the default gravity of the simulation scene between 0 and -981 depending on its current value. Thanks again for your help! I hope this can be useful to others who might face the same issue.

Thank you for this write up, I started writing something similar, but this is a huge help understanding how to get and set the data for BaseLink. I'll need to add FieldList and InExcludeData as you mentioned, knowing the getting and adding the new object is a little more involved than just setting the property id directly. I'll reach out here again if I have any followups.

Hi @Pitchi, Welcome to the Maxon developers forum and its community, it is great to have you with us! Getting Started Before creating your next postings, we would recommend making yourself accustomed with our forum and support procedures. You did not do anything wrong, we point all new users to these rules. Forum Overview: Provides a broad overview of the fundamental structure and rules of this forum, such as the purpose of the different sub-forums or the fact that we will ban users who engage in hate speech or harassment. Support Procedures: Provides a more in detail overview of how we provide technical support for APIs here. This topic will tell you how to ask good questions and limits of our technical support. Forum Features: Provides an overview of the technical features of this forum, such as Markdown markup or file uploads. It is strongly recommended to read the first two topics carefully, especially the section Support Procedures: Asking Questions. About your First Question I'm struggling to understand what exactly you're trying to achieve, namely what do you mean by saying "a way to switch to anyone blocks"? Do you want it to be selected in the attribute manager, or framed in the viewport, or something else? Please also note, that according to our Support Procedures: We cannot provide support on learning C++, Python, or one of their popular third-party libraries We provide code examples but we do not provide full solutions or design applications. This technically means that here we provide support on public APIs of Maxon products and development support for third party developers, but we cannot write solutions instead of you. For the end-user support requests, please use our Support Center. In case you're looking for someone to create a working solution for you, please use our General Talk forum category instead. Cheers, Ilia

Hey, okay, good to know. I just wanted to make clear that BaseBitmap does not support audio playback or sampling audio information. Except for the SoundEffectorCustomGui, there is in fact no sound support at all in the Python API. The C++ API offers more support with the MEDIASESSION namespace, but also this is mostly geared towards writing such information. Cheers, Ferdinand

@i_mazlov This is very useful as it helps avoid manually inputting hard-coded index values! Thank you, and have a great day!

Hey @ferdinand I still do not 100% understand why this entails you having to poke around in the boot sequence of Cinema 4D. You should just register your plugin normally (there is no alternative to that) I think it's mainly because I didn't know what the proper way of doing it was. Reading the docs I thought I needed to use c4d.C4DPL_INIT or c4d.C4DPL_STARTACTIVITY to register my plugin stuff / execute my own startup code. I know there are the c4d plugin examples, but maybe it would be nice to add the "proper" way of registering a plugin to the docs. Python plugins cannot be disabled in Cinema 4D. You can reload them, but not disable them. You also cannot unregister a plugin. Aha also some good information that I was not aware of! And to the server: I am not running a server inside of cinema. It is running on some other machine in the internet. I am only connecting to it via a httpx.AsyncClient client. For this reason and some other technical reasons the client needs to run in a separate thread, but all of that works fine and we are even using the c4d.C4DThread for this. But you answered my question of this thread already, thanks

@i_mazlov Thank you

Great, thank you both very much. That helped a lot and I got the export working!

Blah! Bummer. Seemed like a bug to me. I guess I will just convert this to a CommandData plugin and use GeDialog.

Hi @qq475519905, You issue is likely a bug in the material export code, I've created a ticket (ITEM#530704) in our internal bug tracking system. Thank you for reporting the issue! Cheers, Ilia

@ferdinand said in How to Undo Switching Between Modes?: Well, just move the code which switches the mode to the end of your code when it is only cosmetic anyways. As I said above, a sensible way to use SetMode is when you want to leave the user in a state where he or she can continue working right away. But you can then just run all your code, check if everything went fine and then set your code. Otherwise you never set the mode, and therefore also have nothing to revert. It's a matter of workflow. It's not simply for checking the code that it's working properly. It's about a workflow. The workflow in the example is Select some mesh components, run the command. It generates something for you and switches the mode for you. If you selected the wrong components, you'd undo and try it again. But the undo won't put you back in the component mode. The issue is that that part of the command is not undoable so it's does hinder the workflow just a bit. I'm not necessarily advocating that it should be undoable or anything like that, just explaining the reasoning in this example and the value if it were undoable.

PS: I would test this on heavy scenes with a lot of animations, to see if you get at least one data point for each frame (or whatever value you would consider acceptable).