• 0 Votes
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    rndm_cgR
    @ferdinand thanks so much, problem solved!
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    ferdinandF
    Hey @Anlv, Thank you for reaching out to us and reporting this. I just changed it so that the path is always a raw string. This will be shipped with an upcoming (but not the next) public release. Cheers, Ferdinand I.e., your script will then be as follows where there is an r in front of the string, which should fix the issue on Windows. plugins.ReloadPythonPlugin( path = r"C:\Users\<user>\AppData\Roaming\Maxon\Maxon Cinema 4D 2026_XXXXXXXX\plugins\PluginName\PluginName.pyp", reloadDocumentAfterReload=False, reloadOnlyActiveDocument=False )
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    AnlvA
    Another small tip: you can simply use a single <br> for line breaks — there’s no need to use <b> or </b>. Also, just like in the script example, scripts can support localized language strings as well: """ Name-US:Example Name-CN:示例 Description-US:Example line 1.<br>Example line 2.<br>Example line 3. Description-CN:示例第 1 行。<br>示例第 2 行。<br>示例第 3 行。 """
  • Can we draw alpha image in viewport

    Cinema 4D SDK windows python 2026
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    ferdinandF
    I do not think that DRAW_ALPHA_FROM_IMAGE should not work. I just picked DRAW_ALPHA_NORMAL because it is the "most default one" out of the DRAW_ALPHA flags. I will have a look later. But you can for now probably just use DRAW_ALPHA_NORMAL.
  • How to add tabs to tool plugins.

    Cinema 4D SDK windows python 2026
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    ferdinandF
    You very likely have not unpacked your resources. The resource folder found in an installation only contains a part of the application resources (we are doing this since release 2023 if I remember correctly). A good portion of the resources sits inside resource.zip for performance reasons and is unpacked on demand. You can just unpack the resource.zip into you resource folder without an performance or stability issues. [image: 1779175199591-b8e8db94-ae20-42b4-9a5d-e92ac928e89d-image.png] You as an MRD can also look at the Bugslife client, as it is probably the better example, as it uses more features of the quick tab GUI. But my answer above was targeted at a general audience who can see the resources for Bugslife but not Bugslife itself, and it therefore is not a good example for them. Just grep the resource folder as I did in my screen for files that match the path dialogs/*.res (i.e., are res files for dialogs) and contain the word QUICKTAB. Cheers, Ferdinand
  • Shader bitmap rendering with MemoryFileStruct

    Cinema 4D SDK c++
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    ferdinandF
    Hey, there is no shame in using the 'old' stuff since it is part of our API (and it will stay like that). I just point it out whenever a user is dealing with one of the hollowed out types. My guess would be that there is a threading issue or threading safety mechanism in the way. I think the memory struct stuff is internally using locks to avoid race conditions/corrupted data. When the renderer backend is doing its threading thing, this could cause issues. But ramdisk should work because our assets use the concept heavily (most assets are only a 'promise' which will only be truly created once accessed). You would even profit from the ramdisk caching in the temp folder of Cinema 4D. So, in its simplest form, this should just look like this: void RenderMyDoc(...) { // --- Error Handling and Resource Management ---------------------------------------------------- // Declare heap allocated resources that must be freed once the function exists either normally or // through an error. HeapRescource * myResource = nullptr; BaseBitmap * bmp = nullptr; // Catch any Maxon API error and turn them into the return type of this function and do optional // logging. We could also free resources here, but then we would have to do it twice, once for // normal exit and once for error exit. iferr_scope_handler { // DiagnosticOutput("Error during RenderMyDoc: @", err); return; }; // finally is Maxon API syntax to execute code once a scope (not necessarily a function) is left, // no matter if it is left through normal execution or through an error. This way we can ensure // that resources are freed. finally { if (myResource) HeapResource::Free(myResource); if (bmp) BaseBitmap::Free(bmp); }; // Allocate all the resources we need. When we use AutoAlloc<T>, we would not need the finally block // above, but not all types have an AutoAlloc allocator. myResource = HeapResource::Alloc(); if (!myResource) return maxon::OutOfMemoryError(MAXON_SOURCE_LOCATION, "Failed to allocate heap resource."); bmp = ... // --- Main Logic -------------------------------------------------------------------------------- // Create our ramdisk mounting point and an URL within it. In practice, we probably would want this // ramdisk mounting point to be a class member or even a global singleton. RamDiskRef mountingPoint = RamDiskInterface::Create("net.mycompany.ramdisk.foo"_s) iferr_return; const Url ramdiskUrl = (mountingPoint.GetRoot() + "my_virtual.psd"_s) iferr_return; // Call BaseBitmap::Save with the ramdisk URL converted to a Filename. bmp->Save(cinema::MaxonConvert(ramdiskUrl), ...); // ... } Cheers, Ferdinand
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    R
    @ferdinand Alright, thank you for your reply.
  • 0 Votes
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    ferdinandF
    The second ID is the sub ID. You can have a command (FOO = 100) which supports the sub-commands (BAR=1, and BAZ=2). So, you can then call CallCommand(100, 1) or CallCommand(100, 2) to invoke the two different things FOO can do. But as you said yourself, this is a rather unusual thing, and it is even more unusual that I manged to randomly click five things in a row that all have sub IDs What should also be said is that my little "extrude" log there does not really reproduce the modelling operations I carried out. It just runs the tools in the order they are invoked. And because when you run this right after your created the log, the extrude tool will for example still have set the same extrude depth from the last operation. But when you manually extrude something, and then run the script again, it will use these new current extrude tool settings, i.e., and not the ones from when your 'recorded' the log. The script log can be useful, but it is not the auto-script-recording feature users often whish it was.
  • Executing a Redshift texture bake from Python

    Cinema 4D SDK python 2026
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    ferdinandF
    Hello @mplec1, 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 The bake tag and by extension cinema::BakeTexture (and its Python equivalent c4d.utils.BakeTexture) unfortunately do not support Redshift, even for the older Xpresso based materials. Redshift uses the tools found in Redshift/Tools/Texture Baking for baking. And while you can programmatically create a bake set and then programmatically click the 'Bake' button in it (which both would also work in a headless version of Cinema 4D, such as c4dpy), the following dialog which opens to set baking details and actually start the rendering is sealed, i.e., you cannot interact with it from the public API. And opening such dialog would also fail in a headless Cinema 4D instance. So, I am afraid there is currently no solution for your problem. You can technically export the whole scene to a format such FBX or USD, and use the builtin baking output (which would also work in a headless environment, as long as you do NOT pass SAVEDOCUMENTFLAGS_DIALOGSALLOWED to the save/export operation). But the output of that automated baking is often of poor quality compared to manually baking object(s) via bake sets. Cheers, Ferdinand
  • Using the Bridge Tool

    Cinema 4D SDK python
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    ferdinandF
    Hello @Dimitris_Derm. No, with islands I do not mean different objects. With islands are polygon (selection) islands meant. And that is just the term that is used for these things. The "Plane" object below has two polygon islands, the left and right rectangle shown in the viewport, each composed out of 4 * 5 polygons. They are islands because they are topological disjunct from each other - you cannot 'get' from one island to another without jumping over a gap. [image: 1777019034509-a88ac530-c105-430c-bd11-f922f5688881-image.png] The same can be applied to selections, as shown below. Now the left polygon island in the mesh has two polygonal selection islands. You cannot get from one selection island to another without jumping over a gap (they are topologically disjunct). [image: 1777019065284-bf41be6a-3993-4eb1-b603-438df9aa1bb3-image.png] This is a requirement because as my code example demonstrates, when bridging in island mode, you just specify a polygon and a point (and set the flags), and the tool then 'grows out' the to be bridged patch from the given polygon, based on the active polygon selection. And this growing will stop at topological boundaries. So, when you would bridge from the selection in the lower left corner of the left rectangle (to some unspecified target in another mesh), it would only grow into these four polygons. The selection in the top right corner would never be part of the operation. Cheers, Ferdinand
  • 0 Votes
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    W
    新的py我不知道,但是旧的 我觉得能达到你的要求,虽然我没这样尝试。一般子工具重命名有两种方式: 一种 通过设置 FileNameSetNext 导出空文件 的方式,利用程序导出时自动改名来重命名。还有一个是 调用ZFileUtils64.dll中的 重命名函数,修改: ··· // 设置要使用的名称,而不是询问用户 // @str:将替换为用户输入的文本/字符串 [RoutineDef, ZFU_RenameSetNext, [FileExecute, [Var, dllPath], RenameSetNext, str] , str] // 通过为请求重命名框的按钮提供路径来重命名 “something” // @buttonPath:要求用户重命名“某物”的按钮的路径 // @str:将替换为用户输入的文本/字符串 [RoutineDef, ZFU_RenameFromButtonPath, [If, (([IExists, buttonPath]) && ([IsEnabled, buttonPath])), [FileExecute, [Var, dllPath], RenameSetNext, str] [IPress, buttonPath] ] , buttonPath, str] // 重命名当前 SubTool // @str:新的 SubTool 名称 [RoutineDef, ZFU_RenameCurrentSubTool, [RoutineCall, ZFU_RenameFromButtonPath, "Tool:SubTool:Rename", str] , str] ··· 个人建议 :批量重命名还是在外部处理好 再导入最佳。而且ZB支持bat 等外部执行方式。
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  • Load *.py scripts on startup.

    ZBrush SDK windows
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    D
    Hi @diegoev2026 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 Question Good question, and indeed we wouldn’t recommend modifying the init.py file in the installation directory. Instead, ZBrush provides a dedicated folder for this type of user customization, you can quickly navigate to it from the ZBrush menu: Preferences > Asset Directory > Open Directory. You can find more details about that here, if you are looking for further detail : https://help.maxon.net/zbr/en-us/Content/html/user-guide/customizing-zbrush/user-content/user-content.html In order to execute your own script at startup, it should be sufficient to replicate the setup you see in the ZBrush directory by creating a Python directory inside your asset directory with an init.py in it. If you are using the default location for the asset directory, the path would look something like C:\Users\[UserName]\AppData\Roaming\Maxon\ZBrush_[HashValue]\Python\init.py. On top of the init.py scripts, ZBrush also allows running Python scripts as plugins from a directory you can configure through the environment variable in ZBRUSH_PLUGIN_PATH. You can find more details on how to set those up here: https://developers.maxon.net/docs/zbrush/py/2026_1_0/manuals/python_environment.html#zbrush-plugin-path The user asset directory I mentioned above is also part of the ZBRUSH_PLUGIN_PATH by default, meaning you can just drop your plugins in there. Let us know if you need any further clarification! Regards, Davide
  • Tile rendering with Cinema 4D

    Cinema 4D SDK python 2026
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    ferdinandF
    Hey, just as an FYI, I added this as an example to the 2026.2 rendering examples. You will be able to find it under \scripts\04_3d_concepts\rendering\render_document_tiles_2026_2.py. Since the script will use some 2026.2 features, it does not make much sense to post a preview here, as you will not be able to run it right now. The example also does the kernel border thing we discussed here. Cheers, Ferdinand
  • Reading Immutable Selection Tags

    Cinema 4D SDK python
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    D
    Ah ! They are called Proxy Tags and I can see the actual tag with the MSG_GETREALTAGDATA ! Thank you ️
  • 0 Votes
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    ferdinandF
    Your approach is not necessarily worse, one could even argue that it is better. I personally would always avoid manually binding to an OS DLL via ctypes, but that is more a personal preference.
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    AnlvA
    @ferdinand Thanks for the encouragement, much appreciated!
  • Effector Objects written in Python

    Cinema 4D SDK python
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    ferdinandF
    Hey @Dimitris_Derm. , no there is currently no dedicated plugin class for MoGraph effectors and fields in Python, only the scripting objects exist at the moment. Cheers, Ferdinand
  • 0 Votes
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    ferdinandF
    Hey, well, "intended" would be the wrong word, but I am aware. The whole resource parsing situation is a bit of a mess at the moment, both in C++ and the Python API. Why is it like this? A description is defined by a res file (more or less its GUI declaration) and an h file which declares symbols for parameter IDs. The resource for the loop tool looks like this: CONTAINER ToolLoopSelection { NAME ToolLoopSelection; INCLUDE ToolBase; GROUP MDATA_MAINGROUP { BOOL MDATA_LOOP_SEL_STOP_AT_SELECTIONS { } BOOL MDATA_LOOP_SEL_STOP_AT_NON_QUADS { } BOOL MDATA_LOOP_SEL_STOP_AT_POLES { } } HIDE MDATA_COMMANDGROUP; } I.e., it indeed only defines three parameters. But the header file looks like this: #ifndef TOOLLOOPSELECTION_H__ #define TOOLLOOPSELECTION_H__ enum { MDATA_LOOP_SEL_STOP_AT_SELECTIONS = 1100, // BOOL MDATA_LOOP_SEL_STOP_AT_NON_QUADS = 1110, // BOOL MDATA_LOOP_SEL_STOP_AT_POLES = 1120, // BOOL MDATA_LOOP_FIRST_VERTEX = 1130, // LONG MDATA_LOOP_SECOND_VERTEX = 1131, // LONG MDATA_LOOP_POLYGON_INDEX = 1132, // LONG MDATA_LOOP_BOTH_SIDES = 1133, // BOOL MDATA_LOOP_SWAP_SIDES = 1134, // BOOL MDATA_LOOP_SELECTION_TYPE = 1140, // LONG (must be SELECTION_NEW, SELECTION_ADD or SELECTION_SUB) MDATA_LOOP_SEL_POLYGON_OBJECT = 1150, // LINK }; #endif // TOOLLOOPSELECTION_H__ I.e., it not only defines these three parameters, but also all the others. Because there are all these "hidden" parameters which are written into the data container of the tool, but never show up in the GUI. What collides here is (a) the a bit irregular (but not illegal) behavior of a resource to define more parameters in its header file than are used in the resource and (b) the questionable decision of our resource parser to ignore hidden parameters. Our resource parsing is automated, i.e., I cannot just go into a file and just add these parameters for a docs build. I could touch the resource parsers for Python and C++, but I do not have the time for that right now as they has been written in a very opaque manner. My advice is simply what the docs suggest: Search in the header files directly. Go to your Cinema folder, make sure that the resource.zip is either unpacked to the local folder (the folder existing does not mean necessarily that it has been fully unpacked) or an external folder of your choice. And then simply search in that folder with an editor of your choice. [image: 1775557617243-c122abc5-8cfc-40da-90be-534532600b4a-image-resized.png] At some point I will replace the resource and symbols parsing for Python and C++, because we made there quite a mess in the past with questionable parsers and manually curated lists. But for now this cannot be changed and using the files directly is the way to go when you want to look at descriptions. Cheers, Ferdinand PS: The C++ docs are NOT inherently better in that regard. The parser shares there the same flaws. The reason why you find some symbols there is because developers have duplicated them from the resources into the frameworks.