This is the GVO from another plugin which works flawless. The only difference is that i didn't use an input object. def GetVirtualObjects(self, op, hh): if not op[c4d.ID_BASEOBJECT_GENERATOR_FLAG]: return None if op[res.GRIDDER_OUTPUT] == 0: if self.CacheCheck(op, op.GetDocument()) is True: preReturn = op[res.GRIDDER_CACHE].GetData(1005) return preReturn return self.Gridder(op) return None meshCache = op.GetClone() bc = c4d.BaseContainer() bc.SetData(1001, self.HelperGetOptions(op)) bc.SetData(1002, self.CacheShader(op, doc)[0]) bc.SetData(1003, self.CacheField(op, doc)) if doc != None: bc.SetData(1004, doc.GetTime().GetFrame(doc.GetFps())) bc.SetData(1005, meshCache) op[res.GRIDDER_CACHE] = bc c4d.StatusClear() On the other hand: I have no idea how to serialize a polygon object with uvs, vertex maps and phongtag. Also seems HyperFile a little bit over the top to store something temporary. MemoryFileStruct() could work but I need to store the byteseq as well... GetAndCheckHierarchyClone works but it has the disadvantage of refreshing during viewport changes, so I need to use my own dirtycheck. I think I am doing something fundamental wrong there

Hi, no, I do not think there is, you can either: Add the vertices in question to a new PointObject, then let Cinema crunch on it (you might have to execute the cache pass on the object, I am not sure about this) and finally use the build in methods to get the bounding box vector. Or, and this is definitely the more sane solution and probably also even in Python the faster one, simply compute the bounding box yourself. You have just to loop over all vertices and find the minima and maxima for each component (i.e. x, y, z) and the average of the absolute of these two values is then the respective component of the bounding box vector. Cheers, zipit

Thanks. In the meantime I made some more experiments, and it seems the problem is limited to when you click Execute in the Script Manager or the Customize Command window. I created a keyboard shortcut and embedded the script as icon in the GUI. In both cases, the status bar gets correctly updated regardless of what window was active / received the key press, and where the icon resides (same window, other window, undocked toolbar). It seems the Python interpreter is not blocking the message loops in these cases. That makes the question somewhat academic, because shortcut or icon (or menu but I did not check that) would be the common ways to start the script; starting it from the Script Manager is common during development but irrelevant in practice. I'm curious to hear what the developers will say about the message loops though.

hi , thanks for the links @PluginStudent i'm surprised that you code execute. GetBlock() should be used in your FieldOutput. fields.DirectSample(fieldInput, fieldOutput.GetBlock(), fieldInfo) fields.DirectFreeSampling(fieldInfo) It's working here. Are you sure you are sampling value that should be different than 0 ? Cheers, Manuel

OK ... so I reinvented the wheel. # make unique tag name def makeUniqueTagName(theTag): if theTag != None: obj = theTag.GetObject() # get all names of the tags of same type usedNames = [] if obj != None: tag = obj.GetFirstTag() while tag != None: # skip the tag and # ignore tags of other types if tag != theTag and tag.IsInstanceOf(theTag.GetType()) == True: usedNames.append(tag.GetName()) tag = tag.GetNext() # If the name is already taken we will append a dot and number # and increment the number until a unique name is found. # Note that since we have created the tag we can assume that # the original name does not have a dot and number already. suffix = 0 uniqueName = theTag.GetName() while uniqueName in usedNames: suffix = suffix + 1 uniqueName = theTag.GetName() + '.' + str(suffix) theTag.SetName(uniqueName) return Maybe not the best nor cleanest code, but then again I am not used to code in Python. I am sure others might have a better solution, but this seems to work for what I need, so I am happy with how it turned out.

hi, if you wants to know how many AOVs you need for 10 objects you should use Ceil. After that, some math to have your ID raising by 1. numberOfAOVs = math.ceil(10 / 3.0) # will give you 4 for i in xrange(int(numberOfAOVs)): print ("create aov number {}".format(i)) for j in xrange (3): print ("value of field will be : {}".format(j + i * 3 ) ) I'm not a big fan of retrieving all the objects on each function. But first, make things works, than optimize. (at least at the beginning) Cheers, Manuel

I have been following this topic in all three (!) forums since beginning and I'm really looking forward to the outcome of this topic. I'd call myself quite a Matrix mutant, so just ignore me, if my question is completely off topic or bogus in this context. My expectation would have been the same as @Cairyn's. Yet, there has always been this last sentence on the Matrix fundamentals page, which reads pretty suspicious to me. [Local Matrix] = MatrixMove(op.GetFrozenPos()) * HPBToMatrix(op.GetFrozenRot()) * MatrixMove(op.GetRelPos()) * HPBToMatrix(op.GetRelRot()) * MatrixScale(op.GetFrozenScale) * MatrixScale(op.GetRelScale()) Please note that the both scales are applied at the very beginning, so the local matrix is not the same as [Frozen Matrix] * [Relative Matrix]. This is necessary in order to guarantee that your local matrix always stays a rectangular system; distorted sy I'm not questioning the correctness of this sentence. I'm just wondering if it may be related to this issue? And if one would maybe need to separate the scale from the equation and calculate it in correct order?

Hi, Thank you @r_gigante, @zipit for your replies. The problem comes from the GetDDescription funtion because I use some of dynamic parameters on my objects. It is for this reason that op.IsDirty(c4d.DIRTY_DATA) returning True when I Move, Scale, Zoom or Rotate the perspective view.

Thanks! For whatever reason I couldn't get that particular code to work, but I eventually figured out a different method. I think my script is finished for now.

@Cairyn Thanks for this fantastic resource, I will definitely use this summer to level up with Python.

@zipit thanks a lot, but based on c++ docs made this (seems there are just more checking): def GetDDescription(self, node, description, flags) : data = node.GetDataInstance() if data is None or not description.LoadDescription(node.GetType()): return False singleID = description.GetSingleDescID() paramID = c4d.DescID(c4d.DescLevel(c4d.TESTPLUGIN_OFFSET)) if ( singleID is None or paramID.IsPartOf(singleID)[0] ): bc = description.GetParameterI(paramID) if (bc): if data.GetLong(c4d.TESTPLUGIN_MODE) == TESTPLUGIN_MODE_DISTANCE: bc.SetLong(c4d.DESC_UNIT, c4d.DESC_UNIT_METER) else: bc.SetLong(c4d.DESC_UNIT, c4d.DESC_UNIT_PERCENT) return (True, flags | c4d.DESCFLAGS_DESC_LOADED)

@zipit Hahahahaha! Thank you! I see my lines now. Who hoo!

@m_adam My apologies for not being clearer. I thought there was something wrong with how I was doing the Draw function. The issue was the TAG_IMPLEMENTS_DRAW_FUNCTION flag was missing. Thank you very much!

Thanks for validating my assumptions. Much appreciated. Yes, I already have multiple code branches and for S22 my workaround looks as described. Because it doesn't hurt to insert the RenderData in this case, it doesn't even need multiple branches. Thanks for looking into it, Maxime. Is this going to be fixed in a future version?

@m_magalhaes Remap did the trick! Thanks for the help, Manuel

@r_gigante Ahhhhhhhh, okay, I get it now. Thank you

@r_gigante Thank you!!

@m_adam it's strange, but this small script works fine without any problems with cinema 4d s22. cinema 4d r20 show this error only.

Hi @wob there is noting built-in for that in Cinema 4D. but you can use the regular python way to kill the current process import signal import os os.kill(os.getpid(), signal.SIGTERM) But I just let you know, that it may be useless by nature python should be pretty good at not creating any memory leak, and should free the data as soon as possible, moreover your approach ( I don't know the whole pipeline) but may also be a big issue for a user since this will clause Cinema 4D without asking for saving. People may lose their work. So I really encourage you to be very careful with the use of this. Cheers, Maxime.