@ferdinand Thansk!

@ferdinand Thank you for the detailed explanation and the solution! This perfectly solved my problem, and I really appreciate you clarifying how to access the DESC_CYCLE values！！

Hey @felixc4d, You inheriting from AioReaderRef does not make too much sense. The Maxon API uses interfaces and references. A reference just points to an interface object and increases its reference count, so that the object can be garbage collected once its ref-count reaches zero. References are almost never manually implemented but implemented automatically by the source processor. So, the thing you declare and inherit from is the interface. But that as its name implies, it is actually only the interface and usually is not the actual implementation. The Maxon API mostly uses components to implement relevant functionalities. Components are elements that are loaded dynamically into interfaces at runtime and effectively realize composition over inheritance. So, you can have a FooRef a and a FooRef b for two FooInterface objects which act completely differently at runtime, because the interfaces have different components loaded which realize them. I guess you want to override the NotifyForRead function of AioReaderInterface. For that you would have to write a component for AioReaderInterface and then load it at runtime into an object of one of its concrete forms such as NetworkUdpServerInterface. When I look at for example NetworkUdpServerImpl (the component for NetworkUdpServerInterface), you are sort of in luck, as that component has not been marked as final, so you at least technically have the ability to load another component in there without the interface refusing that. But when you realize a component, you must realize all the MAXON_METHOD methods of the interface the component is for, so you cannot just overwrite that one method. There are way and techniques around this, but then we really reach internal/non-public territory. I could here into more detail but that is all a bit pointless, because when you do this for NetworkUdpServerInterface and its client counter part, you will just end up again at ReadToBuffer shown above. Because what you have to customize in the end, is the call to the native OS library functions and these are burried deep within our non-public code, so you cannot change that from the outside. I am afraid you must either use another protocol, you said that TCP worked fine for you, or really implement things yourself. I am also not really convinced that you cannot communicate in chunks of 1kb, as you can split up and reassemble things. Finally, the last option would be to just use a third party library which wraps at least Windows and macOS for you (not sure if you want to support Linux). Cheers, Ferdinand

Good to hear!

Thank you very much for pointing this out. I knew that Cinema 4D’s UI includes a “Linear Numeric Values” button to switch between color spaces, but I wasn’t aware of how to properly handle this conversion in code until you showed me. Your reference to the open_color_io_2025_2.py example is really helpful for better understanding how to manage color spaces in scripts. Thanks again for the great insight!

@ferdinand Thanks for the response, I figured that would be the case. John Thomas

Hi @madfx, 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: How to Ask Questions. About your First Question I'm sorry for the delayed answer. Unfortunately there's no existing public API that would allow you to do that. Cheers, Ilia

It sounds worth a try, but there may be latency issues when it comes to changes, or data changes can be manually processed during the changes Perhaps for my needs, I can force the database to be use GetSceneRepository, anyway, it's worth a try. Thank you for your guidance

Hi @Fabio-B Thank you for reaching out to us. Unfortunately, your question is off topic for the forum you have posted in. Please check the Forum Overview for an overview of the scope of the different forums. On this forum we only provide support for third party software developers about the Cinema 4D Software Development Kit. We unfortunately cannot provide end user support, as we lack the tools and the knowledge to do so. To receive end-user support, please visit our Support Center and create a ticket for your issue Cheers, Maxime.

Hi @shafy sorry for the delay I was away for few times. Before we start please read the Support Procedure - About AI-Supported Development. Keep in mind we are not there to develop for you neither integrate or guide you with 3rd party module that you will most likely need in order to control knobs. With that's said what you are asking (at least retrieving a parameter and defining it) is possible for Redshift light intensity. It is as easy as drag and dropping the parameter you are interested by into the Cinema 4D Python Console as explained in Python Script Manager Manual - Drag And Drop. Additionally you can also use the Script Log to record a script or change and therefor re-execute it. Cheers, Maxime.

Hey @Fabio-B, Please note that we cannot provide support for AI generated code. See Support Procedures: Scope of Support for details. When you want the clones to move, or in other words to be animated over time, you will need a noise and cannot use hashes or random values, as they are not interpolated, i.e., continous. """Realizes an effector that attracts MoGraph particles spherically around its origin. Add the example to a Matrix object to understand its effect. In Full Control mode we can realize a true attraction force as we have full control over the particle values. Compare this example to Parameter Control mode to understand the difference. """ import c4d import mxutils op: c4d.BaseObject # The Python Effector object containing this code. gen: c4d.BaseObject # The MoGraph Generator executing `op`. doc: c4d.documents.BaseDocument # The document `op` and `gen`are contained in. def main() -> bool: """Called by Cinema 4D to evaluate the effector. """ # Get the particle data for the effector #op. Get out when either the data cannot be retrieved. data: c4d.modules.mograph.MoData = c4d.modules.mograph.GeGetMoData(op) if data is None: return 1.0 # Get the matrices of the particles. This is the array we will modify. matrices: list[c4d.Matrix] = data.GetArray(c4d.MODATA_MATRIX) # For each particle write a new persistent random height value, hashed over the index of the # particle. This will cause the height each time to be the same, as long as the index of the # particle does not change. One could also hash the position of the original particle to get a # height value that is not dependent on the index of the particle (e.g., when the user changes # the order of the particles in the Matrix object). for i in range(data.GetCount()): pos: c4d.Vector = matrices[i].off y: float = c4d.utils.noise.Noise(matrices[i].off, doc.GetTime().Get()) * 25.0 matrices[i].off = c4d.Vector(pos.x, y, pos.z) # Hash a height value over the position of the particle. # y: float = mxutils.g_random.HashVectorToNumber(matrices[i].off) * 25.0 # Write the new data back. data.SetArray(c4d.MODATA_MATRIX, matrices, op[c4d.FIELDS].HasContent()) return True Recording 2025-05-02 141611.mp4 Cheers, Ferdinand

Hey @m_adam, Thanks for the reply! What you’re saying makes a lot of sense C++ is clearly the better option for this kind of stuff, especially when you need more control and better performance. I haven’t had much chance to dive into C++ yet, but I’m well aware it’s way more powerful than Python when it comes to working with the engine. It’s a bit of a shame that there’s no way to directly access polygon info from Python, since that’s exactly what I needed. But still, I really appreciate you taking the time to explain it. Cheers, James H.

@ferdinand Thank you for your detailed explanation, it shed some light on the whole matter for me.

@hoganXYZ hi if it does not appear in the script log then there is no clear rules. Sometimes there is another way sometimes now it depends on how it is implemented. For the one you asked I do not think it is possible. Best bet would be to ask Redshift on their forum. Cheers, Maxime.

@ferdinand Thanks for the detailed response, unfortunately what I'm trying to do doesn't seem viable. John Thomas

Hi Ferdinand, Thanks a lot for the clear explanation and for taking the time to share the code. The part about accessing BaseVideoPost and using REDSHIFT_RENDERER_EMISSION_ENABLE was spot on. Exactly what I needed. Works perfectly! Really appreciate it. Anthony

Hi Ilia, Thanks a lot for the quick and clear reply! That makes sense. I had a feeling it might be a limitation of the current API. I’ll definitely follow up with the Redshift team on their forum to confirm whether there’s any workaround or future support planned for accessing those fields. Appreciate your help and the reference to the related thread! Cheers, Anthony

@ferdinand said in SAVEDOCUMENTFLAGS_AUTOSAVE still added to the recent file list?: But please provide instructions on how to use your code when required in the future. oh shit, i'm so sorry. you're right. completly missed this one. ... and of cause thanks for the explaination / clarification.

@ferdinand said in How to simulate a drag behavior with UA?: All it it does when the users starts to drag, according to Maxime, is inject the asset object into the document, make sure there is no object selected and then enable the place tool (and probably set the mouse cursor) This is my solution in my mind, definitely take a try after work.