Hi,

welcome to the Plugin Café forum ☺

Before answering your question, I'd like to ask you to please read "Read Before Posting". No worries, I have turned this thread into a "question", added tags and moved it to the Cinema 4D Development category for you.

I'm a bit surprised it's supposed to work on Mac. The thing is, SetTime() just sets the time of the document, but it does not implicitly trigger a re-evaluation or execution of the scene. For this you need to use ExecutePasses() after calling SetTime().

There's some more information on this in our C++ SDK manuals. I know, we are talking Python here, but maybe it's interesting anyway: BaseDocument manual -Time.

Cheers,
Andreas

Hello Roger,

my thought was, if you allocated buffer properly via NewMem (or one of its siblings), then you should be able to use it directly. But as Cinema 4D will do an internal copy and destroy the passed buffer, you'd need to do something like this (pseudocode):

SetMemory(buffer) buffer = GetMemory() // to get the pointer to the buffer owned by Cinema // ... and then in the end, if you need to free the memory yourself and can't rely on the memory being destroyed on destruction of the BaseContainer buffer = GetMemoryAndRelease() Free(buffer)

Just thinking and probably you have thought of this option anyway.

Cheers,
Andreas

Thank you for all these details Maxime 😉
I solved the problem with a small loop that checks if the object has been converted or not 😉
The test reports I got are all positive 🙂
My plugin will therefore remain compatible from R13 to R20:)

Hi @m_adam, thanks for you correction and advice, it's really usefull for me. I'm learn python just couple month and not sure in my code yet.

yeah i'm missed this mistake
full_dirpath = normpath(join(dirpath, (doc.GetActiveObjects(0)[0]).GetName() + ".obj"))

Thanks one more time, always good to have help and support!

Thanks for confirming my suspicion 🙂

@m_adam Sorry about the gaffe. I make sure for it not to happen again. Thanks for your response.

Because you didn't insert the actual renderer: InsertVideoPost()
BaseVideoPost

Nevermind. I figured it out 🙂 It was my mistake in the code. I made myself a helper function to initialize the ViewportSelect object, and I was initializing it with the wrong object. That's where the runtime error came from. Thanks anyway.

You may want to consider to use scipy.
You have to do indexing once, but can the efficiently iterate over the points within a desired radius with the functions that come with the module.

Hi Roger,
that's good news!
Cheers,
Andreas

Ok, thanks!

Hi @rownn, thanks for having provided further details.

Assuming that you're aware of the limitation in terms of appearance that you might face by using the functionalities delivered by GeClipMap, the only way to go to access a bitmap which is supposed to contain a rendering of the scene in Python is to execute the rendering invoking the BaseDocument::RenderDocument() and pass the BaseBitmap you intend to manipulate via the GeClipMap.

Best, Riccardo

Hi Ogers, thanks for reaching us.

With regard to your question, I need some further explanation since I actually don't get what you mean by:

to get these parameters from c4d lights

Which parameters are you referring to?
What is the final intent of the Light Translator plugin?

Best, Riccardo

Hi Merkvilson, the best way would be in the NodeData.Init method to load the scene with LoadDocument(). This will give you a BaseDocument.
Then you can retrieve the LineObject or whatever you need from this document. Then get a Clone of these things and draw it inside your Draw method.

Just in case, if you would have to return everything in the GetVirtualObject methods, you would need to insert everything under a null and return this null. And to manually handles/tracks material (this part can become very tedious)

If you have any questions, please let me know.
Cheers,
Maxime.

The best way would be to store directly the LineObject in a member variable of your ObjectData class.

The alternative way to retrieves a LineObject (which is never visible in the ObjectManager) is to call GetCache() from a Spline Object. But a Spline Object can have multiple LineObject and a SplineObject (like any other objects) does not guarantee that a cache is available at any time. So if there is no cache, the best way would have been to clone the SplineObject to a Temporary document, call ExecutePass from this document in order to build the cache. Then retrieves the cached LineObject. But I think SplineHelp, is the best option you have which works in all case, easy to setup/use, is there any drawback to it?

Cheers,
Maxime.

Hi, Donovan thanks for reaching us.

The mystery variable is actually an int flag to retrieve if the user cancels the PickSession or not. def OnPick(flags, active, multi): if flags & c4d.PICKSESSION_FLAG_CANCELED: print "User cancel" print "active: ", active print "multi: ", multi def main(): doc.StartPickSession(OnPick, multi=True) No there is no way. Actually nothing, it's up to you to detect when the user cancels with PICKSESSION_FLAG_CANCELED and do whatever you want. Cinema 4D handle automatically undo. But you can call BaseDocument.GetSelection before and BaseDocument.SetSelection after if the user cancels the pick session)

Finally, note the C++ version offer to adds userdata ( For more information please read the C++ documentation https://developers.maxon.net/docs/cpp/2023_2/struct_pick_session_data_struct.html)

If you have any question, please let me know.
Cheers,
Maxime.

Hi Maxime - thank you very much for the response, and I'm glad to hear you're considering it for the future.

@cairyn
You are right.
I thought having to go over the BaseContainer obtained from the object via GetData(), but didn't see anything in its content related to the displaycolor ... didn't think of just accessing the object's properties directly. I am not that confident with the Python SDK.
Thanks for the piece of code.

Hi,

we are glad @rui_mac you were able to solve your problem.
I'd just like to quickly recap to make this also clear for future readers.

Visual Studio has two "concepts" two organize your development work.

Projects, which is basically a set of files plus a bunch of configuration options and instructions for the tool chain (compiler, linker,...) to build a binary (in our case here always a plugin library). Solutions, which are collections of above projects plus some additional global configuration data and more important, information on dependencies of the contained projects.

Now, our project tool can and does create both projects (for your plugins and for our frameworks) and a solution containing all of the above (actual workflow described in our docs under the links provided by Riccardo earlier on in this thread). So when you open such a solution and build your plugin project, also the frameworks it's depending on should be built.So, this is the way to go (project tool -> solution and projects -> open solution in Visual Studio).
But if you instead open just one of the generated projects directly, Visual Studio will implicitly generate a solution for you, but it still lacks the framework projects and the build of the opened project will fail (error: unresolved symbols, i.e. function or class names normally provided by our frameworks and used in the plugins code can not be resolved).

I hope this makes it a bit easier to understand.

Cheers,
Andreas