hello, so you want to retrieve the positions of particles (from particles object or TP) ? About Thinking Particles you have information here, don't forget to use InitThinkingParticles before using it. For Particles Object you have this page and this is pretty straight forward. For example : // Retrieves Particles Object BaseObject *selObj = doc->GetActiveObject(); if (selObj == nullptr || !selObj->IsInstanceOf(Oparticle)) { MessageDialog("Need to select a particle object"_s); return maxon::OK; } // cast object to ParticleObject ParticleObject* partObj = static_cast<ParticleObject*>(selObj); if (partObj == nullptr) return maxon::NullptrError(MAXON_SOURCE_LOCATION); const maxon::Int32 cnt = partObj->GetParticleCount(); // Retrieves the particle tag that is invisible. ParticleTag* partTag = static_cast<ParticleTag*>(partObj->GetTag(Tparticle)); for (maxon::Int32 i = 0; i < cnt; i++) { const Particle* myParticle = partObj->GetParticleR(partTag, i ); // Check particle's age before output position if (myParticle->t > 0) DiagnosticOutput("particle position @ have age @", myParticle->off, myParticle->t); } // Creates particles in TP // Retrieves the TP Master BaseSceneHook* hook = doc->FindSceneHook(ID_THINKINGPARTICLES); if (hook == nullptr || hook->GetType() != ID_THINKINGPARTICLES) return maxon::NullptrError(MAXON_SOURCE_LOCATION); TP_MasterSystem* tpmaster = static_cast<TP_MasterSystem*>(hook); if (tpmaster == nullptr) return maxon::NullptrError(MAXON_SOURCE_LOCATION); // Alloc 10 particles maxon::Int32 ids[10]; if (tpmaster->AllocParticles(10, ids) == NOTOK) return maxon::OutOfMemoryError(MAXON_SOURCE_LOCATION); // Changes position of particles and retrieves it to output it. for (auto pid : ids) { tpmaster->SetPosition(pid, Vector(pid * 50)); Vector pos = tpmaster->Position(pid); DiagnosticOutput("position of particle @ is @", pid, pos); } EventAdd(); Cheers, Manuel

Thank you for the help @m_magalhaes

Thank you both for the replies! Between both of them I have exactly what I need, thanks.

Hi Sebastian! Thanks for you quick reply. He will try and reduce the code as much as possible (as it is a commercial project of your company). When he's done, I'll send it over. I am aware that you can't do much without example code. We were hoping there were some common stumble stones you might have come across. Another thing worth mentioning might be that the linker only fails when building on macOS. Windows is doing fine... Cheers, Frank

Hello, I tested it with the Gradient Shader example from the cinema4dsdk and it works fine as far as I can tell. I just removed the check for ASSETDATA_FLAG::TEXTURESONLY: Bool SDKGradientClass::Message(GeListNode* node, Int32 type, void* data) { switch (type) { case MSG_GETALLASSETS: { AssetData* const assetData = static_cast<AssetData*>(data); // checks if only texture assets should be added if (assetData == nullptr) return true; BaseList2D* const baseList2D = static_cast<BaseList2D*>(node); if (baseList2D != nullptr) { // get the file name const Filename path = baseList2D->GetData().GetFilename(GRAD_FILE); // check if the file name is set if (path.IsPopulated()) { // add the file name assetData->Add(path, nullptr); } } break; } } return SUPER::Message(node, type, data); }; Regarding Shader hierarchies: I guess you can send the message to your child-shaders yourself, to make sure they receives the message. best wishes, Sebastian

@r_gigante Finally I found the solution to linearize the subdivision expansion on Adaptive spline interpolation on the angle deviation. I just replaced the line : radVal = c4d.utils.DegToRad(90 * (1.0 - val) By : radVal = math.pow(val, -0.85) I changed also the slider user data unit to REAL if I want to keep it with a PERCENT unit I just multiply the value by 100 radVal = math.pow(val*100, -0.85) Here is demo:

Hello, Regarding the question yes, using GetDeformCache is the way to go. Using one object, there's not too much difference between MCOMMAND_CURRENTSTATETOOBJECT and MCOMMAND_JOIN as the MCOMMAND_JOIN is calling a MCOMMAND_CURRENTSTATETOOBJECT for each object. The obvious part is that the Join command will create one object while the other will return a hierarchy. (if there are children) Cheers, Manuel

Greetings! Thanks for the reply. I kinda goofed up- apparently my objects were being improperly deconstructed before I was trying to use them, which was causing the BaseLink to get deleted and crash on subsequent access. BaseLink does indeed work fine and solves my problem. Sorry for the confusion! -CMPX

@m_magalhaes thank you! switch to 2015(v140) is all right : )

hi, without any further feedback, this thread will be considered as solve tomorrow. Cheers Manuel

Hi CMPX, thanks for reaching out is. With regard to your topic I recommend to have a look at how the Lattice Plane example on Github works. This is a simplified example showing how to deliver the mechanism of the Lattice Deformer on a plane and, at the same time, it put the bases to extend it with an arbitrary mesh. Definitively your mesh modifier should implement the ObjectData::ModifyObject() method to displace the mesh of the object to be deformed based on the displacement that you've set on the controlling mesh. If your controlling mesh(es) are then Cinema 4D generators, then you have to run through BaseObject::GetCache() or BaseObject::GetDeformCache() in order to retrieve the points of the controlling object, and based on their relative position in the space deliver the modification on the target object. Best, Riccardo

Hi @mike, I just wanted to confirm what @chuanzhen said. For more information see the C4DAtom Manual about the dirty stuff. Cheers, Maxime.

hello, It's not related to Iterator. This simple example also complain about the default constructor. #include <iostream> class MYINT { public: MYINT(int inInt) { _myint = inInt; }; private: int _myint; }; int main() { MYINT myint; system("pause"); return 0; } It should say 'hey i don't have any constructor with no parameters". But if you give him something to initialize with it understand. MYINT myint = MYINT(10); MYINT myOtherInt = 10; MYINT myThirdInt(10); all this will end with _myint = 10; Cheers Manuel

@s_bach Oh, i miss a important part, thank you!

hello, this thread will be considered as Solved tomorrow is you have nothing to add. Cheers Manuel

hello, this thread will be considered as Solved tomorrow is you have nothing to add. Cheers Manuel

@rsodre said in Detecting TriState: When GetParameter() returns a DA_TRISTATE type, how can I get the original data type? What about the values? i need a bit more information about this part. In my simple example, my data is not returning DA_TRISTATE, From where main function are you calling GetParameter ? Cheers Manuel

hello, if you have nothing to add, this thread will be considered as 'solved' and will be closed tomorrow Cheers Manuel

@s_bach Thank you!

@r_gigante Thanks for the headsup about FindOrCreateEntry. Since Put does use that method internally, I didn't even consider about trying to use it, as I simply assumed it would have the same issue. Guess I was wrong about not trying it. Problem solved.