@m_magalhaes Sorry about the late reply again! I went to build some simplified code to post and I might have figured it out in the process. It seems that if I correctly mark the children with AddDependence then GetCache returns the cache I expect. Having the object lower in the object manager than mine causes it to lag behind slightly, but that seems consistent with other Cinema objects. Dan

Hi guys, we've should have fixed the caching issue in the documentation and we kindly ask, before emptying the cache, to see if the issue persists on your side. In case you still experience the issue, please follow-up with a new post in this thread. Thanks for your help! R

@zipit just FYI, the CacheInterface immediately crashes R20 but works on R21 @m_adam Ok, thanks! I was doing this in every Python Tag and I have 100-200 of those in the File. I don't really need to do this, it was just a "beauty" thing... that did end up ugly

@m_adam Ah gotcha. Thanks for the confirmation and the sample code.

I’m confident they will find out Thanks for everything!

Finally fix it! I reinstalled c4d and everything goes well! Thank you for all you helps!

Hi, Thank you @m_adam and @zipit . I am specifically interested in copying the Viewport pixels for speed. Thank you both for your help.

It works like a charm! Thank you again! I was surprised at how little code was required. Sharing is caring. In case anyone needs it, here's the code: #include "ge_prepass.h" #include "c4d_general.h" #include "c4d_baselinkarray.h" #include "c4d_basedocument.h" /// /// \brief Registers observers and sends messages to them. /// class Observable { public: /// /// \brief Subscribes a new observer. /// /// \param[in] observer Pointer to an AtomGoal /// \param[in] doc The document that owns the AtomGoal /// /// \return A maxon error object if anything went wrong, otherwise maxon::OK /// maxon::Result<void> Subscribe(C4DAtomGoal *observer, BaseDocument *doc); /// /// \brief Unsubscribes an observer /// /// \param[in] observer Pointer to an AtomGoal that has previously been subscribed /// \param[in] doc The document that owns the AtomGoal /// void Unsubscribe(C4DAtomGoal *observer, BaseDocument *doc); /// /// \brief Sends a messages to all subscribed observers /// /// \param[in] type Message type /// \param[in] doc The document that owns the subscribed observers /// \param[in] data Optional message data /// void Message(Int32 type, BaseDocument *doc, void *data = nullptr) const; private: BaseLinkArray _observers; }; maxon::Result<void> Observable::Subscribe(C4DAtomGoal *observer, BaseDocument *doc) { if (!observer) return maxon::NullptrError(MAXON_SOURCE_LOCATION, "Observer must not be nullptr!"_s); // Check if this observer is already registered const Int32 observerIndex = _observers.Find(observer, doc); if (observerIndex != NOTOK) return maxon::OK; // Register new observer if (!_observers.Append(observer)) { return maxon::OutOfMemoryError(MAXON_SOURCE_LOCATION, "Failed to add observer to the list!"_s); } return maxon::OK; } void Observable::Unsubscribe(C4DAtomGoal *observer, BaseDocument *doc) { if (observer && doc) { const Int32 observerIndex = _observers.Find(observer, doc); if (observerIndex != NOTOK) { _observers.Remove(observerIndex); } } } void Observable::Message(Int32 type, BaseDocument *doc, void *data) const { for (Int32 i = 0; i < _observers.GetCount(); ++i) { C4DAtomGoal *atom = _observers.GetIndex(i, doc); if (atom) { atom->Message(type, data); } } }

Thank you both! @zipit & @m_magalhaes

hi, I'm a bit surprised that your render can be triggered from a NodeData (but why not) But i don't understand why you can't use GetDDescription to update your node. That's what i did (in a probably too naive way) but you got the idea. I just got a boolean display_aboard on my ObjectData and i switch it as i needed. If i presse the button, i switch and i set dirty my node, if i receive the message that the render is finished (or stopped) i set my bool to false and i SetDirty my node. static const Int32 g_pc12584ButtonID = 1000; class pc12584_object : public ObjectData { INSTANCEOF(pc12584_object, ObjectData); public: static NodeData* Alloc() { return NewObjClear(pc12584_object); }; Bool Init(GeListNode* node) override { display_aboard = false; return true; } BaseObject* GetVirtualObjects(BaseObject* op, HierarchyHelp* hh) override { BaseObject* null = BaseObject::Alloc(Onull); return null; } Bool GetDDescription(GeListNode* node, Description* description, DESCFLAGS_DESC& flags) override { if (!description->LoadDescription(Obase)) return false; const DescID* singleid = description->GetSingleDescID(); const Int32 ID = g_pc12584ButtonID; const DescID cid = DescLevel(ID, DTYPE_BUTTON, 0); if (!singleid || cid.IsPartOf(*singleid, nullptr)) { BaseContainer bc = GetCustomDataTypeDefault(DTYPE_BUTTON); bc.SetInt32(DESC_CUSTOMGUI, CUSTOMGUI_BUTTON); if (display_aboard) bc.SetString(DESC_NAME, "Aboard Render"_s); else bc.SetString(DESC_NAME, "Render"_s); bc.SetInt32(DESC_ANIMATE, DESC_ANIMATE_OFF); bc.SetInt32(DESC_SCALEH, 1); description->SetParameter(cid, bc, DescLevel(ID_OBJECTPROPERTIES)); } flags |= DESCFLAGS_DESC::LOADED; return SUPER::GetDDescription(node, description, flags); } Bool Message(GeListNode* node, Int32 type, void* data) override { switch (type) { case MSG_DESCRIPTION_COMMAND: { DescriptionCommand* dc = (DescriptionCommand*)data; const Int32 id = dc->_descId[0].id; if (id == g_pc12584ButtonID) { display_aboard = !display_aboard; node->SetDirty(DIRTYFLAGS::DESCRIPTION); } break; } case g_pc12584Message: { display_aboard = false; node->SetDirty(DIRTYFLAGS::DESCRIPTION); break; } } return SUPER::Message(node, type, data); }; private: Bool display_aboard = false; }; // function to send a message to the ObjectData. static maxon::Result<void> PC12854_Message(BaseDocument* doc) { iferr_scope; // update the first object BaseObject* op = doc->GetFirstObject(); if (op == nullptr) return maxon::NullptrError(MAXON_SOURCE_LOCATION); op->Message(g_pc12584Message); return maxon::OK; } Cheers, Manuel

hi, @indexofrefraction, as @blastframe said, let's keep that thread clean and ask your question in another thread, this is working on my system. @blastframe , we will take into consideration your request. Cheers, Manuel

hi can we considered this thread as resolved ? Cheers, Manuel

hi can we considered this thread as solved ? (even if there's no real right answer) Cheers, Manuel

hi, we got some information in our documentation. For example you can't add an object in the document from a tag while the generator can return a hierarchy. But you can easily draw information on the viewport with a tag. Cheers, Manuel

OK, thanks!

@m_magalhaes Thanks Manuel (and @zipit ) for your help. Please let us know about why the Message isn't working.

Hi Thanks for the extra warning, just in case it was stated in the S22 API change. Cheers, Maxime.

@m_adam Thanks. I gave that a shot, but unfortunately, it's still adding multiple copies of the same camera. Am I doing something wrong? docs = c4d.documents doc = docs.GetActiveDocument() cams = getSelectedCameras(doc.GetActiveObjects(0)) path = doc.GetDocumentPath() cFile = path + '\\' + fName queue = docs.GetBatchRender() queue.Open() base = doc.GetActiveBaseDraw() for cam in cams: docs.LoadDocument(cFile, c4d.SCENEFILTER_OBJECTS | c4d.SCENEFILTER_MATERIALS) base.SetSceneCamera(cam) docs.SaveDocument(doc, cFile, c4d.SAVEDOCUMENTFLAGS_DONTADDTORECENTLIST, c4d.FORMAT_C4DEXPORT) queue.AddFile(cFile, queue.GetElementCount())

@m_magalhaes Thank you for reply. I am going to use it for this project. Hope it gets fixed soon. Thank you.