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Motion and graphic designer, developer of third-party plugins for Cinema 4D and Photoshop.
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。
"""
Hi everyone, I’m releasing Plugin Debug Manager, a debugging utility for Cinema 4D Python plugin development.
When working on a .pyp plugin, changing a single entry file can otherwise require reloading every Python plugin—or restarting Cinema 4D. Plugin Debug Manager reads the currently registered Python plugins and lets developers reload only the entries they are testing.
Main features:
.pyp and .pypv plugins from Cinema 4Dc4d.storage.ShowInFinder()Implementation details:
c4d.plugins.FilterPluginList(c4d.PLUGINTYPE_ANY, True)BasePlugin.GetFilename(), GetID(), and GetType()c4d.plugins.ReloadPythonPlugin()ReloadDocumentAfterReload(True) is called only once after the reload batchBefore reloading, the manager copies and normalizes the target file paths instead of retaining BasePlugin objects that may become invalid during the reload process. The manager itself remains visible in the list but cannot be selected or reloaded.
Compatibility:
c4d.plugins.ReloadPythonPlugin, available in this version
Version: 1.3.0
Plugin ID: 1069486
Author: Anlv
Download: Plugin Debug Manager v1.3.0.zip
By the way, this is open source, and you can edit and modify it yourself to make it better suit your work habits.
Best regards,
Anlv
Hi, @atg Simply remove the invalid child IDs after the commands recorded in the script log, for example:
c4d.CallCommand(1062577, 1067510) → c4d.CallCommand(1062577)
I remember encountering the same issue before, but I can’t quite recall the details. I need to look it up.
import c4d
doc: c4d.documents.BaseDocument # The currently active document.
op: c4d.BaseObject | None # The primary selected object in `doc`. Can be `None`.
def main() -> None:
"""Called by Cinema 4D when the script is being executed.
"""
c4d.CallCommand(1062577) # Mesh Emitter
if __name__ == '__main__':
main()
How do I retrieve a command call from it's index number ?
Cheers,
Anlv
@ceen Hi, The Summary row mey only a UI aggregate; it is not a single CTrack that can be switched directly.
To reproduce its Animation switch, collect the real CTrack objects and set their c4d.ID_CTRACK_ANIMOFF value:
# True = animation enabled, False = animation disabled
track[c4d.ID_CTRACK_ANIMOFF] = False
This does not delete keyframes and does not hide Timeline rows. Do not use NBIT_TLx_HIDE for this, because those flags only hide rows in the Timeline.
A complete document-wide solution must also traverse Motion Sources in doc.GetNLARoot() . Add Motion Source moves/copies animation into that separate NLA hierarchy, so iterating only normal scene objects and tags will miss tracks such as Time and 2D Tracks.
It should be noted that doc.GetNLARoot() is marked as Private in the SDK, and I'm not sure whether it should be used.
"""Toggle the Summary Animation switch for all collected CTracks."""
import c4d
def iter_nodes(node):
while node:
yield node
yield from iter_nodes(node.GetDown())
node = node.GetNext()
def main():
doc = c4d.documents.GetActiveDocument()
tracks, seen = [], set()
def add_tracks(owner):
for track in (owner.GetCTracks() or []) if owner else []:
if id(track) not in seen:
seen.add(id(track))
tracks.append(track)
def add_tree(root, include_tags=False):
for node in iter_nodes(root):
add_tracks(node)
if include_tags:
for tag in node.GetTags() or []:
add_tracks(tag)
add_tracks(doc)
add_tree(doc.GetFirstObject(), include_tags=True)
material = doc.GetFirstMaterial()
while material:
add_tracks(material)
add_tree(material.GetFirstShader())
material = material.GetNext()
render_data = doc.GetFirstRenderData()
while render_data:
add_tracks(render_data)
video_post = render_data.GetFirstVideoPost()
while video_post:
add_tracks(video_post)
video_post = video_post.GetNext()
render_data = render_data.GetNext()
layer_root = doc.GetLayerObjectRoot()
add_tree(layer_root.GetDown() if layer_root else None)
# Private API, but required for Add Motion Source tracks in C4D 2026.
add_tree(doc.GetNLARoot().GetDown(), include_tags=True)
enabled = any(track[c4d.ID_CTRACK_ANIMOFF] for track in tracks)
for track in tracks:
track[c4d.ID_CTRACK_ANIMOFF] = not enabled
c4d.EventAdd()
if __name__ == "__main__":
main()
Cheers,
Anlv
Hi, @chuanzhen
I tested the same code as you in both saved projects and unsaved new documents, but no crash occurred. This might be a bug, possibly related to the ObjectData plugin in your project. I can't be certain that's the cause. You could try ruling out the plugin's influence first. But this is beyond my capability, so let's wait for more professional personnel to help.
Cheers,
Anlv
Hi, @chuanzhen
This code runs fine on my end (Cinema 4D 2026.3.4). Analyzing the cause of the failure may require more detailed information, such as the Cinema 4D version number and the real path (path resolution may occur), and corruption of the path_str file is also one possibility.
Cheers,
Anlv
Hi @ferdinand,
using the mxutils.RecurseGraph method is much clearer and simpler. Thank you, I've learned something new again.
Cheers,
Anlv
@ceen Hi, The Summary row mey only a UI aggregate; it is not a single CTrack that can be switched directly.
To reproduce its Animation switch, collect the real CTrack objects and set their c4d.ID_CTRACK_ANIMOFF value:
# True = animation enabled, False = animation disabled
track[c4d.ID_CTRACK_ANIMOFF] = False
This does not delete keyframes and does not hide Timeline rows. Do not use NBIT_TLx_HIDE for this, because those flags only hide rows in the Timeline.
A complete document-wide solution must also traverse Motion Sources in doc.GetNLARoot() . Add Motion Source moves/copies animation into that separate NLA hierarchy, so iterating only normal scene objects and tags will miss tracks such as Time and 2D Tracks.
It should be noted that doc.GetNLARoot() is marked as Private in the SDK, and I'm not sure whether it should be used.
"""Toggle the Summary Animation switch for all collected CTracks."""
import c4d
def iter_nodes(node):
while node:
yield node
yield from iter_nodes(node.GetDown())
node = node.GetNext()
def main():
doc = c4d.documents.GetActiveDocument()
tracks, seen = [], set()
def add_tracks(owner):
for track in (owner.GetCTracks() or []) if owner else []:
if id(track) not in seen:
seen.add(id(track))
tracks.append(track)
def add_tree(root, include_tags=False):
for node in iter_nodes(root):
add_tracks(node)
if include_tags:
for tag in node.GetTags() or []:
add_tracks(tag)
add_tracks(doc)
add_tree(doc.GetFirstObject(), include_tags=True)
material = doc.GetFirstMaterial()
while material:
add_tracks(material)
add_tree(material.GetFirstShader())
material = material.GetNext()
render_data = doc.GetFirstRenderData()
while render_data:
add_tracks(render_data)
video_post = render_data.GetFirstVideoPost()
while video_post:
add_tracks(video_post)
video_post = video_post.GetNext()
render_data = render_data.GetNext()
layer_root = doc.GetLayerObjectRoot()
add_tree(layer_root.GetDown() if layer_root else None)
# Private API, but required for Add Motion Source tracks in C4D 2026.
add_tree(doc.GetNLARoot().GetDown(), include_tags=True)
enabled = any(track[c4d.ID_CTRACK_ANIMOFF] for track in tracks)
for track in tracks:
track[c4d.ID_CTRACK_ANIMOFF] = not enabled
c4d.EventAdd()
if __name__ == "__main__":
main()
Cheers,
Anlv
This appears to be a Float32-to-quantized-weight conversion or rounding issue in SetWeightMap(), rather than ordinary floating-point noise.
Cinema 4D version: 2026.3.4
Expected: unchanged values after every round-trip.
Round 0: weight=0.14285496299687189 (14.28549630%), total=0.99998474097810308 (99.99847410%)
Round 1: weight=0.1428397039749752 (14.28397040%), total=0.99987792782482621 (99.98779278%)
Round 10: weight=0.14270237277790493 (14.27023728%), total=0.99891660944533434 (99.89166094%)
Round 19: weight=0.14256504158083466 (14.25650416%), total=0.99795529106584246 (99.79552911%)
Round 20: weight=0.14256504158083466 (14.25650416%), total=0.99795529106584246 (99.79552911%)
Round 25: weight=0.14256504158083466 (14.25650416%), total=0.99795529106584246 (99.79552911%)
Hi, @atg Simply remove the invalid child IDs after the commands recorded in the script log, for example:
c4d.CallCommand(1062577, 1067510) → c4d.CallCommand(1062577)
I remember encountering the same issue before, but I can’t quite recall the details. I need to look it up.
import c4d
doc: c4d.documents.BaseDocument # The currently active document.
op: c4d.BaseObject | None # The primary selected object in `doc`. Can be `None`.
def main() -> None:
"""Called by Cinema 4D when the script is being executed.
"""
c4d.CallCommand(1062577) # Mesh Emitter
if __name__ == '__main__':
main()
How do I retrieve a command call from it's index number ?
Cheers,
Anlv
@ferdinand Thank you so much!
I made some minor adjustments to the plugin, adding support for CTRL hotkey activation, which allows quick reloading of previously checked plugins that need to be reloaded without opening the window. As always, open source, and will continue to be open source.
Download: Plugin Debug Manager v1.5.0.zip
Cheers,
Anlv
Hi everyone, I’m releasing Plugin Debug Manager, a debugging utility for Cinema 4D Python plugin development.
When working on a .pyp plugin, changing a single entry file can otherwise require reloading every Python plugin—or restarting Cinema 4D. Plugin Debug Manager reads the currently registered Python plugins and lets developers reload only the entries they are testing.
Main features:
.pyp and .pypv plugins from Cinema 4Dc4d.storage.ShowInFinder()Implementation details:
c4d.plugins.FilterPluginList(c4d.PLUGINTYPE_ANY, True)BasePlugin.GetFilename(), GetID(), and GetType()c4d.plugins.ReloadPythonPlugin()ReloadDocumentAfterReload(True) is called only once after the reload batchBefore reloading, the manager copies and normalizes the target file paths instead of retaining BasePlugin objects that may become invalid during the reload process. The manager itself remains visible in the list but cannot be selected or reloaded.
Compatibility:
c4d.plugins.ReloadPythonPlugin, available in this versionVersion: 1.3.0
Plugin ID: 1069486
Author: Anlv
Download: Plugin Debug Manager v1.3.0.zip
By the way, this is open source, and you can edit and modify it yourself to make it better suit your work habits.
Best regards,
Anlv
@ferdinand Hi, I think the issue has been fixed. I just tried uploading an attachment (before uploading, I cleared the cache and changed the network environment), and it no longer prompts "Error: Something went wrong while parsing server response."
Thanks for your help,
Anlv
@ferdinand A small update:
My first attempt to open the upload endpoint directly only returned Forbidden and did not display a visible Cloudflare verification page.
I then used a small userscript to submit a real multipart file upload as a top-level browser navigation instead of an XHR request. That request succeeded and returned the normal NodeBB JSON response:
{"status":{"code":"ok","message":"OK"}}
More importantly, after this top-level request, the forum’s normal attachment uploader also started working successfully.
This suggests that the top-level request allowed Cloudflare to complete or refresh its verification/clearance state, while the original XHR upload could not handle the HTML Challenge response. It appears to be a Cloudflare Challenge/clearance issue rather than a damaged file or a failure in NodeBB’s upload handler.