@ferdinand said in BaseBitmap.Init("somefile.exr") crashes with multiple std::thread:

omp #parallel

Sorry for late reply, I am not advocating for std::threads, I understand your design explanation.
The omp #parallel thing is OpenMP directive to launch parallel threads. It's an old but simple method.
Actually I have made a solution by exploiting Cinema way of launching threads and it works fine.
However, I hope it would be good to make BaseBitmap->Init a thread safe and independent call from other C4D threads and resources.
I will collect an example for you with exr images soon.

Cheers,
Aaron

Hey @ferdinand ,

thanks for details.

Cheers~
DunHou

About forum, I can get notification about my own topic, And I clear all the cache, but nothing changed.

After I tried to reset my account settings manually, then it worked as expected.

Hey @Dunhou,

I have edited your posting. It is fine to mention the beta forum, but we would rather not see its name written here.

When you are talking about 'C++', I assume you are talking here about the Windows SDK/API, as for example GetGUIThreadInfo. I would doubt that you get very far with that here. Cinema 4D is very OS agnostic and we have our whole GUI decoupled from the OS. The little rename window in our tree view control is not an OS rename dialog. I am not even sure if this is something with an HWND handle which you could address so that you could intercept keyboard events to it, or if this is just a virtual window within our API.

For this IMM thing to work, we would have to use the IME API in Cinema 4D, so that our text edit gadgets support it. I also do not quite understand what you are trying to do. The missing piece is here probably that our text edit gadget does not send its current content to the IME API (at a glance, via ImmSetCompositionStringW as shown here). And as a third party, you cannot really fix that. Because you (a) do not own the implementation and you (b) are not informed about an edit event, so you cannot just write a plugin which sends the object name to the IME API.

Cheers,
Ferdinand

Hey,

thanks for the extended code, but I still cannot run this, as it is only a fragment 😉 So, I only have a very rough understanding of what is going wrong.

A likely issue apart from you just having a bug in your hit logic, is that you use the wrong coordinate system.

if msg[c4d.BFM_INPUT_DEVICE] == c4d.BFM_INPUT_MOUSE \ and msg[c4d.BFM_INPUT_CHANNEL] == c4d.BFM_INPUT_MOUSELEFT \ and msg[c4d.BFM_INPUT_VALUE]: local_x = msg[c4d.BFM_INPUT_X] local_y = msg[c4d.BFM_INPUT_Y] scroll_y = self.dialog.get_scroll_offset()

I would have to check myself, but there is some inconsistency with which dialogs send mouse input messages regarding the used coordinate system. Sometimes they send messages in the coordinate system of the dialog and sometimes messages in the coordinate system of the gadget. Just print out your (local_x and local_y) and check if the values make sense as local coordinates as you seem to treat them. On GeUserArea are multiple coordinate conversion methods. I think BFM_INPUT in this context is in local user area coordinates but I am not sure, it could also be that you have to convert them.

The other thing is of course that you add this self.dialog.get_scroll_offset() on top of things. I assume this is sourced by something like GeDialog.GetVisibleArea? There you could also unintentionally mix coordinate systems.

Cheers,
Ferdinand

for my use case i will probably have a fallback solution with web-save or system fonts like this:

import platform system_name = platform.system() if system_name == "Windows": font_name = "Consolas" elif system_name == "Darwin": font_name = "Menlo" elif system_name == "Linux": font_name = "DejaVu Sans Mono"

Thanks for the response!

I appreciate the ASSETDATA_FLAG_MULTIPLEUSE tip.

My hope was that there was some sort of existing RenameAsset SDK method that would also update all references to that asset without implementing custom handling for various element types (Redshift Nodal Material, Cinema 4D Classic Material, Arnold Dome Light, XRef, etc). Evidently such a public python SDK method doesn't exist.

My example code was texture specific as that's the part of the problem that's most pressing to me and I was able to implement with custom per-type handling - if I manage to get other types working, I'll attempt to update over time.

okay the docs you gave were great for insight

working code to change parameter of roughness for x given mat selections

import c4d import maxon from maxon import GraphDescription doc = c4d.documents.GetActiveDocument() # Get selected materials directly selected_materials = doc.GetActiveMaterials() # Modify roughness for each selected material for material in selected_materials: graph = GraphDescription.GetGraph(material, nodeSpaceId=maxon.NodeSpaceIdentifiers.RedshiftMaterial) GraphDescription.ApplyDescription(graph, { "$query": { "$type": "Standard Material" }, "Reflection/Roughness": 1 }) c4d.EventAdd()

Thanks @ferdinand for your great solution!

Cheers~
DunHou

Hey @megamau,

are you referring to the Cineware libraries shipped with Cinema 4D (e.g., as a dll under Windows)? This not the same Cineware as the SDK Cineware (Melange). There are also currently no plans for converting the Cineware (Melange) SDK into a dynamic library.

I also do not quite understand the inherint benefit of that? You want to bind with other languages than C++ to Cineware or what? C++ is currently unfourntely the only language we support. And if you REALLY want a Cineware (Melange) dynamic library, you could also just create it yourself. But then you will still need a static library (the declarations) to load and link against that DLL. So, I do not really understand what would be won with that.

Cheers,
Ferdinand

Hello @writing-qi,

Welcome to the Maxon developers forum and its community, it is great to have you with us!

Getting Started

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It is strongly recommended to read the first two topics carefully, especially the section Support Procedures: How to Ask Questions.

About your First Question

Please familiarize yourself with our support guidelines, your first question is composed out of multiple explicit and implicit questions and also lacks executable code, which makes it rather hard to answer.

GetDescription() returns parameters but all show "Access Failed"

There is no such error in our API. I assume you mean an error like this instead: AttributeError: Parameter value not accessible (object unknown in Python).

The Cinema 4D API is primarily a C++ API and therefore exist data types that simply have not been ported to Python. For example, many objects have the parameters ID_BASELIST_ICON_PRESET_BUTTONS and ID_BASELIST_NODESPACE_ADD_REMOVE_BUTTONS (which are usually hidden) and when you try to access them, it will raise an error, because the respective data types simply have not been wrapped, so the Python API has no idea what to do with the data held by these parameters.

In Redshift, which started out as a third party plugin and is still an optional feature of Cinema 4D, many data types have never been ported to Python which makes them simply inaccessible. But Redshift usually decomposes their data via channel decomposition. I.e., the parameter for a "Texture" (CUSTOMDATATYPE_RSFILE) itself is not exposed, but its sub channels such as the path, tiling, etc. are. This has been discussed quite a few times before on the forum, for example here.

What is the correct API to enumerate all parameters in RS Shader Graph?

Well, descriptions are the tool for that, but descriptions also contain things where you cannot get/set a parameter, either because the data type is not exposed to Python or simply because there is nothing to get and set. The next SDK release will also contain a function called mxutils.GetParameterTreeString which allows you to visualize the sensible parameters of a scene element. But neither it nor c4d.Description.__iter__ will automatically unfold sub-channels. E.g., when you come along a node which has a parameter of type DYTPE_VECTOR at ID_MY_VECTOR_PRAM, the description will yield you a parameter at ID_MY_VECTOR_PRAM but not its sub-channels (ID_MY_VECTOR_PRAM, VECTOR_X), (ID_MY_VECTOR_PRAM, VECTOR_Y), and (ID_MY_VECTOR_PRAM, VECTOR_Z). The same goes for Redshift datatypes, when you come across a parameter of type CUSTOMDATATYPE_RSFILE, e.g., for the 'Image > File' (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0) parameter of an RS Texture node. The description will list the parameter for REDSHIFT_SHADER_TEXTURESAMPLER_TEX0 for that node but not its nested parameters, such as [c4d.REDSHIFT_SHADER_TEXTURESAMPLER_TEX0,c4d.REDSHIFT_FILE_PATH], [..,c4d.REDSHIFT_FILE_LAYER], [...,c4d.REDSHIFT_FILE_COLORSPACE], etc. will not be listed.

I am afraid there is no abstracted way to solve this in Python. You would need access to the datatype registries which you do not have in Python. And even in the public C++ API, I currently do not see a way to do this. You need access to our internal API to be able to query a data type for the sub-channels it does register.

But you could of course just hardcode the cases, I have given a small example below for CUSTOMDATATYPE_RSFILE, it is not that much work for one data type. But Redshift did use a lot of custom data types in its old Xpresso system, so wrapping them all could be a bit of work (but should still be doable).

Cheers,
Ferdinand

Output

For this graph:
72414249-863b-4c13-8acd-5247941e64b3-image.png

RS Xpresso Material: <c4d.BaseMaterial object called RS C4D Shader/RS Shader Graph with ID 1036224 at 1819322820416> Found Xpresso node: <c4d.modules.graphview.GvNode object called Shader Graph/XGroup with ID 1001102 at 1818547015360> Parameter 'Icon File / ID'(c4d.ID_BASELIST_ICON_FILE) = Parameter 'Icon Color'(c4d.None) = 0 Parameter 'Color'(c4d.ID_BASELIST_ICON_COLOR) = Vector(0, 0, 0) Parameter ''(c4d.ID_BASELIST_ICON_PRESET_BUTTONS) = Inaccessible in Python Parameter 'Name'(c4d.ID_BASELIST_NAME) = Shader Graph Parameter 'Layer'(c4d.ID_LAYER_LINK) = None Parameter ''(c4d.ID_BASELIST_NODESPACE_ADD_REMOVE_BUTTONS) = Inaccessible in Python Parameter 'Enabled'(c4d.ID_GVBASE_ENABLE) = 1 Parameter 'Title Color'(c4d.ID_GVBASE_COLOR) = Vector(0.38, 0.384, 0.392) Parameter 'Remark'(c4d.ID_GVBASE_REMARK) = Parameter 'Inputs First'(c4d.GV_GROUP_INPUTS_FIRST) = 0 Parameter 'Active'(c4d.GV_GROUP_ACTIVE) = 0 Found Xpresso node: <c4d.modules.graphview.GvNode object called Output/Output with ID 1001101 at 1819032444352> Parameter 'Icon File / ID'(c4d.ID_BASELIST_ICON_FILE) = Parameter 'Icon Color'(c4d.None) = 0 Parameter 'Color'(c4d.ID_BASELIST_ICON_COLOR) = Vector(0, 0, 0) Parameter ''(c4d.ID_BASELIST_ICON_PRESET_BUTTONS) = Inaccessible in Python Parameter 'Name'(c4d.ID_BASELIST_NAME) = Output Parameter 'Layer'(c4d.ID_LAYER_LINK) = None Parameter ''(c4d.ID_BASELIST_NODESPACE_ADD_REMOVE_BUTTONS) = Inaccessible in Python Parameter 'Enabled'(c4d.ID_GVBASE_ENABLE) = 1 Parameter 'Title Color'(c4d.ID_GVBASE_COLOR) = Vector(0.286, 0.329, 0.463) Parameter 'Remark'(c4d.ID_GVBASE_REMARK) = Parameter 'Material ID'(c4d.GV_REDSHIFT_OUTPUT_MATERIAL_ID) = 0 Found Xpresso node: <c4d.modules.graphview.GvNode object called RS Material/RS Shader with ID 1001101 at 1819032542400> Parameter 'Icon File / ID'(c4d.ID_BASELIST_ICON_FILE) = Parameter 'Icon Color'(c4d.None) = 0 Parameter 'Color'(c4d.ID_BASELIST_ICON_COLOR) = Vector(0, 0, 0) Parameter ''(c4d.ID_BASELIST_ICON_PRESET_BUTTONS) = Inaccessible in Python Parameter 'Name'(c4d.ID_BASELIST_NAME) = RS Material Parameter 'Layer'(c4d.ID_LAYER_LINK) = None Parameter ''(c4d.ID_BASELIST_NODESPACE_ADD_REMOVE_BUTTONS) = Inaccessible in Python Parameter 'Enabled'(c4d.ID_GVBASE_ENABLE) = 1 Parameter 'Title Color'(c4d.ID_GVBASE_COLOR) = Vector(0.529, 0.345, 0.333) Parameter 'Remark'(c4d.ID_GVBASE_REMARK) = Parameter 'Version'(c4d.GV_REDSHIFT_SHADER_META_VERSION) = 17 Parameter 'Shader Class'(c4d.GV_REDSHIFT_SHADER_META_CLASSNAME) = Material Parameter 'preset'(c4d.REDSHIFT_SHADER_MATERIAL_PRESET) = 65536 Parameter 'diffuse_color'(c4d.REDSHIFT_SHADER_MATERIAL_DIFFUSE_COLOR) = Vector(0.5, 0.5, 0.5) Parameter 'diffuse_weight'(c4d.REDSHIFT_SHADER_MATERIAL_DIFFUSE_WEIGHT) = 1.0 Parameter 'diffuse_roughness'(c4d.REDSHIFT_SHADER_MATERIAL_DIFFUSE_ROUGHNESS) = 0.0 Parameter 'transl_color'(c4d.REDSHIFT_SHADER_MATERIAL_TRANSL_COLOR) = Vector(0.5, 0.5, 0.5) Parameter 'transl_weight'(c4d.REDSHIFT_SHADER_MATERIAL_TRANSL_WEIGHT) = 0.0 Parameter 'refl_color'(c4d.REDSHIFT_SHADER_MATERIAL_REFL_COLOR) = Vector(1, 1, 1) Parameter 'refl_weight'(c4d.REDSHIFT_SHADER_MATERIAL_REFL_WEIGHT) = 1.0 Parameter 'refl_roughness'(c4d.REDSHIFT_SHADER_MATERIAL_REFL_ROUGHNESS) = 0.0 Parameter 'refl_samples'(c4d.REDSHIFT_SHADER_MATERIAL_REFL_SAMPLES) = 16 Parameter 'refl_brdf'(c4d.REDSHIFT_SHADER_MATERIAL_REFL_BRDF) = 0 Parameter 'refl_aniso'(c4d.REDSHIFT_SHADER_MATERIAL_REFL_ANISO) = 0.0 Parameter 'refl_aniso_rotation'(c4d.REDSHIFT_SHADER_MATERIAL_REFL_ANISO_ROTATION) = 0.0 Parameter 'refl_fresnel_mode'(c4d.REDSHIFT_SHADER_MATERIAL_REFL_FRESNEL_MODE) = 3 Parameter 'refl_reflectivity'(c4d.REDSHIFT_SHADER_MATERIAL_REFL_REFLECTIVITY) = Vector(0.04, 0.04, 0.04) Parameter 'refl_edge_tint'(c4d.REDSHIFT_SHADER_MATERIAL_REFL_EDGE_TINT) = Vector(0, 0, 0) Parameter 'refl_ior3'(c4d.REDSHIFT_SHADER_MATERIAL_REFL_IOR3) = Vector(1.5, 1.5, 1.5) Parameter 'refl_k3'(c4d.REDSHIFT_SHADER_MATERIAL_REFL_K3) = Vector(0, 0, 0) Parameter 'refl_metalness'(c4d.REDSHIFT_SHADER_MATERIAL_REFL_METALNESS) = 0.0 Parameter 'refl_ior'(c4d.REDSHIFT_SHADER_MATERIAL_REFL_IOR) = 1.5 Parameter 'sheen_color'(c4d.REDSHIFT_SHADER_MATERIAL_SHEEN_COLOR) = Vector(1, 1, 1) Parameter 'sheen_weight'(c4d.REDSHIFT_SHADER_MATERIAL_SHEEN_WEIGHT) = 0.0 Parameter 'sheen_roughness'(c4d.REDSHIFT_SHADER_MATERIAL_SHEEN_ROUGHNESS) = 0.30000001192092896 Parameter 'sheen_samples'(c4d.REDSHIFT_SHADER_MATERIAL_SHEEN_SAMPLES) = 64 Parameter 'refr_color'(c4d.REDSHIFT_SHADER_MATERIAL_REFR_COLOR) = Vector(1, 1, 1) Parameter 'refr_weight'(c4d.REDSHIFT_SHADER_MATERIAL_REFR_WEIGHT) = 0.0 Parameter 'refr_roughness'(c4d.REDSHIFT_SHADER_MATERIAL_REFR_ROUGHNESS) = 0.0 Parameter 'refr_samples'(c4d.REDSHIFT_SHADER_MATERIAL_REFR_SAMPLES) = 8 Parameter 'refr_ior'(c4d.REDSHIFT_SHADER_MATERIAL_REFR_IOR) = 1.5 Parameter 'refr_use_base_IOR'(c4d.REDSHIFT_SHADER_MATERIAL_REFR_USE_BASE_IOR) = 1 Parameter 'refr_abbe'(c4d.REDSHIFT_SHADER_MATERIAL_REFR_ABBE) = 0.0 Parameter 'refr_thin_walled'(c4d.REDSHIFT_SHADER_MATERIAL_REFR_THIN_WALLED) = 0 Parameter 'ss_unitsMode'(c4d.REDSHIFT_SHADER_MATERIAL_SS_UNITSMODE) = 0 Parameter 'refr_transmittance'(c4d.REDSHIFT_SHADER_MATERIAL_REFR_TRANSMITTANCE) = Vector(1, 1, 1) Parameter 'refr_absorption_scale'(c4d.REDSHIFT_SHADER_MATERIAL_REFR_ABSORPTION_SCALE) = 0.009999999776482582 Parameter 'ss_extinction_coeff'(c4d.REDSHIFT_SHADER_MATERIAL_SS_EXTINCTION_COEFF) = Vector(0, 0, 0) Parameter 'ss_extinction_scale'(c4d.REDSHIFT_SHADER_MATERIAL_SS_EXTINCTION_SCALE) = 0.009999999776482582 Parameter 'ss_scatter_coeff'(c4d.REDSHIFT_SHADER_MATERIAL_SS_SCATTER_COEFF) = Vector(1, 1, 1) Parameter 'ss_amount'(c4d.REDSHIFT_SHADER_MATERIAL_SS_AMOUNT) = 0.0 Parameter 'ss_phase'(c4d.REDSHIFT_SHADER_MATERIAL_SS_PHASE) = 0.0 Parameter 'ss_samples'(c4d.REDSHIFT_SHADER_MATERIAL_SS_SAMPLES) = 16 Parameter 'ms_amount'(c4d.REDSHIFT_SHADER_MATERIAL_MS_AMOUNT) = 0.0 Parameter 'ms_radius_scale'(c4d.REDSHIFT_SHADER_MATERIAL_MS_RADIUS_SCALE) = 100.0 Parameter 'ms_mode'(c4d.REDSHIFT_SHADER_MATERIAL_MS_MODE) = 1 Parameter 'ms_samples'(c4d.REDSHIFT_SHADER_MATERIAL_MS_SAMPLES) = 64 Parameter 'ms_include_mode'(c4d.REDSHIFT_SHADER_MATERIAL_MS_INCLUDE_MODE) = 1 Parameter 'ms_color0'(c4d.REDSHIFT_SHADER_MATERIAL_MS_COLOR0) = Vector(1, 0.9, 0.7) Parameter 'ms_weight0'(c4d.REDSHIFT_SHADER_MATERIAL_MS_WEIGHT0) = 1.0 Parameter 'ms_radius0'(c4d.REDSHIFT_SHADER_MATERIAL_MS_RADIUS0) = 1.0 Parameter 'ms_color1'(c4d.REDSHIFT_SHADER_MATERIAL_MS_COLOR1) = Vector(1, 0.9, 0.7) Parameter 'ms_weight1'(c4d.REDSHIFT_SHADER_MATERIAL_MS_WEIGHT1) = 0.0 Parameter 'ms_radius1'(c4d.REDSHIFT_SHADER_MATERIAL_MS_RADIUS1) = 1.0 Parameter 'ms_color2'(c4d.REDSHIFT_SHADER_MATERIAL_MS_COLOR2) = Vector(1, 0.9, 0.7) Parameter 'ms_weight2'(c4d.REDSHIFT_SHADER_MATERIAL_MS_WEIGHT2) = 0.0 Parameter 'ms_radius2'(c4d.REDSHIFT_SHADER_MATERIAL_MS_RADIUS2) = 1.0 Parameter 'coat_color'(c4d.REDSHIFT_SHADER_MATERIAL_COAT_COLOR) = Vector(1, 1, 1) Parameter 'coat_weight'(c4d.REDSHIFT_SHADER_MATERIAL_COAT_WEIGHT) = 0.0 Parameter 'coat_roughness'(c4d.REDSHIFT_SHADER_MATERIAL_COAT_ROUGHNESS) = 0.0 Parameter 'coat_samples'(c4d.REDSHIFT_SHADER_MATERIAL_COAT_SAMPLES) = 16 Parameter 'coat_brdf'(c4d.REDSHIFT_SHADER_MATERIAL_COAT_BRDF) = 0 Parameter 'coat_fresnel_mode'(c4d.REDSHIFT_SHADER_MATERIAL_COAT_FRESNEL_MODE) = 3 Parameter 'coat_reflectivity'(c4d.REDSHIFT_SHADER_MATERIAL_COAT_REFLECTIVITY) = Vector(0.027, 0.027, 0.027) Parameter 'coat_ior3'(c4d.REDSHIFT_SHADER_MATERIAL_COAT_IOR3) = Vector(1.4, 1.4, 1.4) Parameter 'coat_ior'(c4d.REDSHIFT_SHADER_MATERIAL_COAT_IOR) = 1.399999976158142 Parameter 'coat_transmittance'(c4d.REDSHIFT_SHADER_MATERIAL_COAT_TRANSMITTANCE) = Vector(1, 1, 1) Parameter 'coat_thickness'(c4d.REDSHIFT_SHADER_MATERIAL_COAT_THICKNESS) = 0.10000000149011612 Parameter 'coat_bump_input'(c4d.REDSHIFT_SHADER_MATERIAL_COAT_BUMP_INPUT) = Vector(0, 0, 0) Parameter 'overall_color'(c4d.REDSHIFT_SHADER_MATERIAL_OVERALL_COLOR) = Vector(1, 1, 1) Parameter 'opacity_color'(c4d.REDSHIFT_SHADER_MATERIAL_OPACITY_COLOR) = Vector(1, 1, 1) Parameter 'emission_color'(c4d.REDSHIFT_SHADER_MATERIAL_EMISSION_COLOR) = Vector(0, 0, 0) Parameter 'emission_weight'(c4d.REDSHIFT_SHADER_MATERIAL_EMISSION_WEIGHT) = 0.0 Parameter 'bump_input'(c4d.REDSHIFT_SHADER_MATERIAL_BUMP_INPUT) = Vector(0, 0, 0) Parameter 'depth_override'(c4d.REDSHIFT_SHADER_MATERIAL_DEPTH_OVERRIDE) = 0 Parameter 'refl_depth'(c4d.REDSHIFT_SHADER_MATERIAL_REFL_DEPTH) = 3 Parameter 'refl_enablecutoff'(c4d.REDSHIFT_SHADER_MATERIAL_REFL_ENABLECUTOFF) = 0 Parameter 'refl_cutoff'(c4d.REDSHIFT_SHADER_MATERIAL_REFL_CUTOFF) = 0.009999999776482582 Parameter 'skip_inside_refl'(c4d.REDSHIFT_SHADER_MATERIAL_SKIP_INSIDE_REFL) = 1 Parameter 'refr_depth'(c4d.REDSHIFT_SHADER_MATERIAL_REFR_DEPTH) = 5 Parameter 'refr_enablecutoff'(c4d.REDSHIFT_SHADER_MATERIAL_REFR_ENABLECUTOFF) = 0 Parameter 'refr_cutoff'(c4d.REDSHIFT_SHADER_MATERIAL_REFR_CUTOFF) = 0.009999999776482582 Parameter 'combined_depth'(c4d.REDSHIFT_SHADER_MATERIAL_COMBINED_DEPTH) = 6 Parameter 'diffuse_direct'(c4d.REDSHIFT_SHADER_MATERIAL_DIFFUSE_DIRECT) = 1.0 Parameter 'diffuse_indirect'(c4d.REDSHIFT_SHADER_MATERIAL_DIFFUSE_INDIRECT) = 1.0 Parameter 'refl_direct'(c4d.REDSHIFT_SHADER_MATERIAL_REFL_DIRECT) = 1.0 Parameter 'refl_indirect'(c4d.REDSHIFT_SHADER_MATERIAL_REFL_INDIRECT) = 1.0 Parameter 'refl_isGlossiness'(c4d.REDSHIFT_SHADER_MATERIAL_REFL_ISGLOSSINESS) = 0 Parameter 'coat_direct'(c4d.REDSHIFT_SHADER_MATERIAL_COAT_DIRECT) = 1.0 Parameter 'coat_indirect'(c4d.REDSHIFT_SHADER_MATERIAL_COAT_INDIRECT) = 1.0 Parameter 'coat_isGlossiness'(c4d.REDSHIFT_SHADER_MATERIAL_COAT_ISGLOSSINESS) = 0 Parameter 'sheen_direct'(c4d.REDSHIFT_SHADER_MATERIAL_SHEEN_DIRECT) = 1.0 Parameter 'sheen_indirect'(c4d.REDSHIFT_SHADER_MATERIAL_SHEEN_INDIRECT) = 1.0 Parameter 'sheen_isGlossiness'(c4d.REDSHIFT_SHADER_MATERIAL_SHEEN_ISGLOSSINESS) = 0 Parameter 'refr_isGlossiness'(c4d.REDSHIFT_SHADER_MATERIAL_REFR_ISGLOSSINESS) = 0 Parameter 'decoupleIORFromRoughness'(c4d.REDSHIFT_SHADER_MATERIAL_DECOUPLEIORFROMROUGHNESS) = 0 Parameter 'shadow_opacity'(c4d.REDSHIFT_SHADER_MATERIAL_SHADOW_OPACITY) = 0.0 Parameter 'affects_alpha'(c4d.REDSHIFT_SHADER_MATERIAL_AFFECTS_ALPHA) = 1 Parameter 'block_volumes'(c4d.REDSHIFT_SHADER_MATERIAL_BLOCK_VOLUMES) = 1 Parameter 'energyCompMode'(c4d.REDSHIFT_SHADER_MATERIAL_ENERGYCOMPMODE) = 1 Parameter 'overallAffectsEmission'(c4d.REDSHIFT_SHADER_MATERIAL_OVERALLAFFECTSEMISSION) = 0 Parameter 'refl_endmode'(c4d.REDSHIFT_SHADER_MATERIAL_REFL_ENDMODE) = 1 Parameter 'anisotropy_orientation'(c4d.REDSHIFT_SHADER_MATERIAL_ANISOTROPY_ORIENTATION) = 2 Parameter 'anisotropy_uvChannel'(c4d.REDSHIFT_SHADER_MATERIAL_ANISOTROPY_UVCHANNEL) = Parameter 'anisotropy_tangentChannel'(c4d.REDSHIFT_SHADER_MATERIAL_ANISOTROPY_TANGENTCHANNEL) = Found Xpresso node: <c4d.modules.graphview.GvNode object called Baked Texture/RS Shader with ID 1001101 at 1819592565952> Parameter 'Icon File / ID'(c4d.ID_BASELIST_ICON_FILE) = Parameter 'Icon Color'(c4d.None) = 0 Parameter 'Color'(c4d.ID_BASELIST_ICON_COLOR) = Vector(0, 0, 0) Parameter ''(c4d.ID_BASELIST_ICON_PRESET_BUTTONS) = Inaccessible in Python Parameter 'Name'(c4d.ID_BASELIST_NAME) = Baked Texture Parameter 'Layer'(c4d.ID_LAYER_LINK) = None Parameter ''(c4d.ID_BASELIST_NODESPACE_ADD_REMOVE_BUTTONS) = Inaccessible in Python Parameter 'Enabled'(c4d.ID_GVBASE_ENABLE) = 1 Parameter 'Title Color'(c4d.ID_GVBASE_COLOR) = Vector(0.663, 0.624, 0.424) Parameter 'Remark'(c4d.ID_GVBASE_REMARK) = Parameter 'Version'(c4d.GV_REDSHIFT_SHADER_META_VERSION) = 17 Parameter 'Shader Class'(c4d.GV_REDSHIFT_SHADER_META_CLASSNAME) = TextureSampler Parameter 'tex0'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_TEX0) = Inaccessible in Python Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1000) = Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1010) = Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1011) = Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1001) = 0 Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1006) = <c4d.BaseTime object at 0x000001A85FC0EDC0> Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1007) = <c4d.BaseTime object at 0x000001A85FC1F440> Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1009) = 0 Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1003) = 0 Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1004) = 0 Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1005) = 30 Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1008) = 0 Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1002) = 0 Parameter 'tex0_layername'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_TEX0_LAYERNAME) = Parameter 'tex0_colorSpace'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_TEX0_COLORSPACE) = Parameter 'tex0_gamma'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_TEX0_GAMMA) = 1.0 Parameter 'tspace_id'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_TSPACE_ID) = Parameter 'mirrorU'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_MIRRORU) = 0 Parameter 'mirrorV'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_MIRRORV) = 0 Parameter 'wrapU'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_WRAPU) = 1 Parameter 'wrapV'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_WRAPV) = 1 Parameter 'scale'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_SCALE) = Vector(1, 1, 0) Parameter 'offset'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_OFFSET) = Vector(0, 0, 0) Parameter 'rotate'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_ROTATE) = 0.0 Parameter 'color_multiplier'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_COLOR_MULTIPLIER) = Vector(1, 1, 1) Parameter 'color_offset'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_COLOR_OFFSET) = Vector(0, 0, 0) Parameter 'alpha_multiplier'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_ALPHA_MULTIPLIER) = 1.0 Parameter 'alpha_offset'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_ALPHA_OFFSET) = 0.0 Parameter 'alpha_is_luminance'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_ALPHA_IS_LUMINANCE) = 0 Parameter 'invalid_color'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_INVALID_COLOR) = Inaccessible in Python Parameter 'filter_enable_type'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_FILTER_ENABLE_TYPE) = 2 Parameter 'filter_bicubic'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_FILTER_BICUBIC) = 0 Parameter 'prefer_sharp'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_PREFER_SHARP) = 1 Parameter 'mip_bias'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_MIP_BIAS) = 0.0 Parameter 'tone_map_enable'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_TONE_MAP_ENABLE) = 0 Parameter 'default_uv_if_invalid'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_DEFAULT_UV_IF_INVALID) = 1 Found Xpresso node: <c4d.modules.graphview.GvNode object called C4D Brick Shader/C4D Shader with ID 1001101 at 1819592570688> Parameter 'Icon File / ID'(c4d.ID_BASELIST_ICON_FILE) = Parameter 'Icon Color'(c4d.None) = 0 Parameter 'Color'(c4d.ID_BASELIST_ICON_COLOR) = Vector(0, 0, 0) Parameter ''(c4d.ID_BASELIST_ICON_PRESET_BUTTONS) = Inaccessible in Python Parameter 'Name'(c4d.ID_BASELIST_NAME) = C4D Brick Shader Parameter 'Layer'(c4d.ID_LAYER_LINK) = None Parameter ''(c4d.ID_BASELIST_NODESPACE_ADD_REMOVE_BUTTONS) = Inaccessible in Python Parameter 'Enabled'(c4d.ID_GVBASE_ENABLE) = 1 Parameter 'Title Color'(c4d.ID_GVBASE_COLOR) = Vector(0.424, 0.392, 0.541) Parameter 'Remark'(c4d.ID_GVBASE_REMARK) = Parameter 'Width'(c4d.GV_REDSHIFT_BAKER_TEXTURE_WIDTH) = 128 Parameter 'Height'(c4d.GV_REDSHIFT_BAKER_TEXTURE_HEIGHT) = 128 Parameter 'Depth'(c4d.GV_REDSHIFT_BAKER_TEXTURE_DEPTH) = 0 Parameter 'Shader'(c4d.GV_REDSHIFT_BAKER_SHADER) = <c4d.BaseShader object called Brick/Brick with ID 5804 at 1822672588480> Found Xpresso node: <c4d.modules.graphview.GvNode object called file_730884e9656be535~/RS Shader with ID 1001101 at 1819592599488> Parameter 'Icon File / ID'(c4d.ID_BASELIST_ICON_FILE) = Parameter 'Icon Color'(c4d.None) = 0 Parameter 'Color'(c4d.ID_BASELIST_ICON_COLOR) = Vector(0, 0, 0) Parameter ''(c4d.ID_BASELIST_ICON_PRESET_BUTTONS) = Inaccessible in Python Parameter 'Name'(c4d.ID_BASELIST_NAME) = file_730884e9656be535~ Parameter 'Layer'(c4d.ID_LAYER_LINK) = None Parameter ''(c4d.ID_BASELIST_NODESPACE_ADD_REMOVE_BUTTONS) = Inaccessible in Python Parameter 'Enabled'(c4d.ID_GVBASE_ENABLE) = 1 Parameter 'Title Color'(c4d.ID_GVBASE_COLOR) = Vector(0.663, 0.624, 0.424) Parameter 'Remark'(c4d.ID_GVBASE_REMARK) = Parameter 'Version'(c4d.GV_REDSHIFT_SHADER_META_VERSION) = 17 Parameter 'Shader Class'(c4d.GV_REDSHIFT_SHADER_META_CLASSNAME) = TextureSampler Parameter 'tex0'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_TEX0) = Inaccessible in Python Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1000) = asset:///file_730884e9656be535~.jpg?name=back-2.jpg&db=MaxonAssets.db (assets.maxon.net) Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1010) = Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1011) = Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1001) = 0 Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1006) = <c4d.BaseTime object at 0x000001A797214AC0> Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1007) = <c4d.BaseTime object at 0x000001A79721BFC0> Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1009) = 0 Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1003) = 0 Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1004) = 0 Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1005) = 30 Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1008) = 0 Sub-channel parameter (REDSHIFT_SHADER_TEXTURESAMPLER_TEX0, 1002) = 0 Parameter 'tex0_layername'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_TEX0_LAYERNAME) = Parameter 'tex0_colorSpace'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_TEX0_COLORSPACE) = Parameter 'tex0_gamma'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_TEX0_GAMMA) = 1.0 Parameter 'tspace_id'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_TSPACE_ID) = Parameter 'mirrorU'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_MIRRORU) = 0 Parameter 'mirrorV'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_MIRRORV) = 0 Parameter 'wrapU'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_WRAPU) = 1 Parameter 'wrapV'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_WRAPV) = 1 Parameter 'scale'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_SCALE) = Vector(1, 1, 0) Parameter 'offset'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_OFFSET) = Vector(0, 0, 0) Parameter 'rotate'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_ROTATE) = 0.0 Parameter 'color_multiplier'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_COLOR_MULTIPLIER) = Vector(1, 1, 1) Parameter 'color_offset'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_COLOR_OFFSET) = Vector(0, 0, 0) Parameter 'alpha_multiplier'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_ALPHA_MULTIPLIER) = 1.0 Parameter 'alpha_offset'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_ALPHA_OFFSET) = 0.0 Parameter 'alpha_is_luminance'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_ALPHA_IS_LUMINANCE) = 0 Parameter 'invalid_color'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_INVALID_COLOR) = Inaccessible in Python Parameter 'filter_enable_type'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_FILTER_ENABLE_TYPE) = 2 Parameter 'filter_bicubic'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_FILTER_BICUBIC) = 0 Parameter 'prefer_sharp'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_PREFER_SHARP) = 1 Parameter 'mip_bias'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_MIP_BIAS) = 0.0 Parameter 'tone_map_enable'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_TONE_MAP_ENABLE) = 0 Parameter 'default_uv_if_invalid'(c4d.REDSHIFT_SHADER_TEXTURESAMPLER_DEFAULT_UV_IF_INVALID) = 1 Code """Prints the parameter values of all Xpresso nodes attached to the materials of a document. Adds custom handling for the Redshift data type `CUSTOMDATATYPE_RSFILE` to unfold its sub-channels. Note: This script requires Cinema 4D 2025.0.0 or higher to run because it uses mxutils.RecurseGraph to find all Xpresso nodes in a material. The general approach of this script can however be applied to much older versions of Cinema 4D (up to R21 guaranteed, maybe even older versions). """ import c4d import mxutils doc: c4d.documents.BaseDocument # The currently active document. op: c4d.BaseObject | None # The primary selected object in `doc`. Can be `None`. # A bunch of data types to step over in descriptions because we do not care about them. NO_VALUE_TYPES: list[int] = [ c4d.DTYPE_BUTTON, c4d.DTYPE_CHILDREN, c4d.DTYPE_CHILDS, c4d.DTYPE_DYNAMIC, c4d.DTYPE_GROUP, c4d.DTYPE_MULTIPLEDATA, c4d.DTYPE_NONE, c4d.DTYPE_SEPARATOR, c4d.DTYPE_SUBCONTAINER, c4d.DTYPE_POPUP ] def main() -> None: """Called by Cinema 4D when the script is being executed. """ # Iterate over all materials in the document, stepping over everything that is not an # RS Xpresso material. for material in doc.GetMaterials(): if not material.CheckType(c4d.Mrsgraph): continue # Iterate over all Xpresso nodes owned by this material. #RecurseGraph is a 2025.0.0+ feature. # You can achieve the same effect with the Redshift API in earlier versions of Cinema 4D. But # since you did not share your code, I took this shortcut instead of writing some lengthy code # to find all RS Xpresso nodes for this material. print(f"RS Xpresso Material: {material}") for node in mxutils.RecurseGraph(material, yieldBranches=True, nodeFilter=[c4d.GVbase]): print(f"\tFound Xpresso node: {node}") # Iterate over the description of the node, stepping over all irrelevant data types. description: c4d.Description = node.GetDescription(c4d.DESCFLAGS_DESC_0) data: c4d.BaseContainer pid: c4d.DescID for data, pid, _ in description: if pid[0].dtype in NO_VALUE_TYPES: continue # Now we try to access the data at #pid. This can fail because the data type of #pid # might not be accessible in Python. value: any | None = None try: value = node[pid] except: value = "Inaccessible in Python" print(f"\t\tParameter '{data[c4d.DESC_NAME]}'(c4d.{data[c4d.DESC_IDENT]}) = {value}") # Hardcode one of the data types (CUSTOMDATATYPE_RSFILE) and unfold its sub-channels. if pid[0].dtype == c4d.CUSTOMDATATYPE_RSFILE and len(pid) == 1: for subChannel in (c4d.REDSHIFT_FILE_PATH, c4d.REDSHIFT_FILE_LAYER, c4d.REDSHIFT_FILE_COLORSPACE, c4d.REDSHIFT_FILE_ANIMATION_MODE, c4d.REDSHIFT_FILE_ANIMATION_RANGE_START, c4d.REDSHIFT_FILE_ANIMATION_RANGE_END, c4d.REDSHIFT_FILE_ANIMATION_LOOP_COUNT, c4d.REDSHIFT_FILE_ANIMATION_FRAME_START, c4d.REDSHIFT_FILE_ANIMATION_FRAME_END, c4d.REDSHIFT_FILE_ANIMATION_FRAME_RATE, c4d.REDSHIFT_FILE_ANIMATION_FRAME_OFFSET, c4d.REDSHIFT_FILE_ANIMATION_TIMING_MODE): try: value = node[pid[0].id, subChannel] except: # This, that the sub-chanel is inaccessible too, can also happen, as the # sub-channel could be as much an unwrapped data type as its parent # parameter. Technically, a DescID can be composed out of three # DescLevel, i.e., you could have a parameter X with N sub-channels # where each of the sub-channels could also have N sub-channels, e.g., # (ID_FOO, ID_SUB_1, ID_SUB_1_1). None of these sub-channels has to use # a data type that is wrapped in Python. But something like this is # rather rare. Parameters where the first desc level is not some kind of # container (e.g., DTYPE_SUBCONTAINER), usually only decomposes into # atomic data types that can also be read from Python. But there is no # hard guarantee that this is the case. value = "Sub-channel is inaccessible in Python" print(f"\t\t\tSub-channel parameter ({data[c4d.DESC_IDENT]}, " f"{subChannel}) = {value}") if __name__ == '__main__': main()

Hey @Ross,

Thank you for reaching out to us. You are right, we cannot support third party APIs, but questions about our API do not automatically become moot or out of scope of support, just because they happen in the context of a plugin. We will of course still answer such questions. We will just never write code for a third-party API or test user code that requires a plugin.

Your question '[I] need help modifying the "Import Type" button parameters of an ImageTexture node' is however ambiguous. A parameter is Cinema 4D slang for an element in a description, one of the ways of how Cinema 4D defines UIs. This includes things that users would naturally call a parameter such as a textbox holding a string, a number edit holding a float, or a combo box holding a selection, i.e., things that hold a value. But it also includes things that are just part of the UI of a node that cannot hold a value, e.g., a group, a separator, or a button.

When someone talks about 'modifying' a parameter I would usually assume that they talk about changing the description of a node, specifically at that parameter. E.g., changing the label of a button, adding or removing elements to/from a drop down, disabling an element, etc. You can only do this for nodes you own, i.e., implement yourself. You cannot change the UI of alien elements, because for you their description is read only. But I assume you are actually talking here about getting or setting the parameter of an element, e.g., set a float slider to the value '4.13'.

What gets a bit in the way here in your case, is that Cinema 4D summarizes everything under the label of paramater, even things that do not naturally have a value which could be gotten or set. So, I assume you want to press this button, for that you have two options:

Call c4d.CallButton Send the message c4d.MSG_DESCRIPTION_COMMAND

Please note that both approaches are restricted to being called from the main thread only when the scene element upon which they are called is part of a loaded scene. E.g., calling one of them on a node in the active document from outside of the main thread: forbidden. Calling them from inside a GetVirtualObjects (or any other off-main thread context) on a scene element in a dummy document which has been constructed just for this purpose and is not loaded by Cinema 4D: absolutely fine.

Cheers,
Ferdinand

Hello @Aaron,

Thank you for reaching out to us. Please follow our support procedures.

You should consolidate your postings until we answer, i.e., update your last posting instead of creating new ones. I have consolidated your postings for you. You should also spend more time on making your problems reproducible for us. I know it can be easy to overlook in the heat of the battle but your question(s) are not as obvious to me as you probably think they are. As lined out in our support procedures, example code and/or scene data is usually required.

I cannot answer every possible angle and interpretation this topic of yours could take, but I can state three things which come to mind when reading your two postings.

What's the way to get several steps of motion blur transformation matrices for BaseObjects of the BaseDocument.

That is simply not possible. A document has no notion of motion blur as it is a render effects implemented by a render engine, not something documents implement. Cinema's time system BaseTime allows for sub-frame accuracy, e.g., you could set a 10fps document to BaseTime(i, 30) and with that step with three sub-frames through the document. Simple things like position animations or other interpolated values will also work doing this. But simulations might yield different results than stepping with the natural frame rate through the document.

And the most important thing is that there is absolutely no guarantee that this approach will result in 'matrices', i.e., transforms, that will match with what a render engine produces when you add some kind of sub-frame-based motion blur. Using this BaseTime approach is one way how the render engine could do it, but since render engines always have their own scene format, they could also do the calculation there, yielding different results than what Cinema's animation system would yield.

When we want to add Motion Blur and call document->ExecutePasses(...) for some time then this POC is flushed and has no polygons or vertices, so it's not collected and can't be rendered

It is too opaque for me what you are doing there to give a real answer, but:

There is no guarantee that the caches of an object are built at any point except for when a render engine gets a scene state to render or inside GetVirtualsObjects when you manually build your dependent objcts. Usually, caches are built but depending on where you are, the cache of another object might not have been built or updated yet, resulting in either an empty cache or you looking at the cache output from the previous scene update. ExecutePasses has become a bit too popular tool recently. I guess that is partially my fault, because I have shown its usage in some examples. But executing the passes on a document is a very expensive operation and should only be carried out when absolutely necessary. I would absolutely not be surprised if something like liquids do not support stepping through a document with a frame rate lower than the documents frame rate. But without concrete data and example code I am just guessing.

Cheers,
Ferdinand

Hey @Kantronin,

Thank you for reaching out to us. Unfortunately, I do not understand your question. The print out you provided, <c4d.SplineObject object ..., already indicates that the object is a c4d.SplineObject. So, I do not really understand what you mean with 'get a spline-type variable'. To get the underlying editable spline object for a spline generator, e.g., get a spline with editable vertices and tangents for a Flower Spline generator, you should use BaseObject.GetRealSpline. But that is only necessary when you have a BaseObject which under the hood represents a spline. It does not apply when you already have a SplineObject as you do.

Cheers,
Ferdinand