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Questions tagged [add-on]

An add-on is a python script or plugin created to expand Blender's functionality. There are many add-ons in the official builds of Blender, and with every new version comes new add-ons.

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How to reload UI without restarting Blender

I'm writing addon which edits default UI. To be specific - it works with VIEW3D_MT_mesh_add The functionality I need goes beyond standard ...
Yaroslav's user avatar
  • 476
0 votes
0 answers
22 views

I installed the CAD sketcher add-on and it shows me an error

I installed CAD sketcher from the website with a zip file, followed the instructions and pressed the enable checkbox of the addon (in blender, edit, preferences, add-ons, install) based on this post (...
Sticonike's user avatar
0 votes
0 answers
8 views

Blender .dff files won't work importing from game [closed]

I was trying to import modelspc.dff file to Blender from any manhunt level to edit it but I got error: ...
Leviathan's user avatar
  • 101
0 votes
0 answers
5 views

Timeline frame advance in Action Recorder

I am using the Action recorder add-on. I am copying and pasting a pose. In between copy and paste I want to advance the timeline by just one frame, usually achieved by using the right arrow key. ...
Richard C's user avatar
-2 votes
1 answer
23 views

How to install Home Builder add-on? [closed]

I am currently using Blender 4.1.1 and I downloaded Home Builder 4 from the following link: https://creativedesigner3d.com/2023/12/14/home-builder-4/ The package contains a variety of files, but for ...
Carlo Ventimiglia's user avatar
0 votes
1 answer
11 views

Blender built-in PDT Tangent feature not working

I have been experimenting ways to use Blender as a CAD program and I find Blender built-in PDT add-on to be best suited for me. Following some tutorials i found on Youtube went well, and I start to ...
Trung Nam Võ's user avatar
0 votes
0 answers
10 views

issue with blender 4.1 and autolip 4.1.0 addon [closed]

I am having an issue with Autolip 4.10 add-on. I have blender 4.1 This is the issue I am encountering : I followed the video tutorial on the site :https://www.youtube.com/watch?v=tQIn0Bkg8eM I managed ...
Serge Chabert's user avatar
0 votes
0 answers
19 views

Custom icons for radio buttons? BL4

Here's how i create preview collection: ...
AlexSD's user avatar
  • 31
2 votes
0 answers
28 views

How to include created Geometry Nodes in addon?

I created Geometry Nodes group that I want to include with my addon so I can use it with other projects and/or share it with someone. How can I link Geometry Nodes to my addon?
Veeran's user avatar
  • 33
4 votes
2 answers
473 views

Placing 3D cursor using python

I want to place an object where the cursor is using python. So I need a script that place the 3D cursor where I have the cursor at that moment and then place the already selected object there. To do ...
Víctor GV's user avatar
1 vote
1 answer
17 views

Is there a way to create a colored text box for StringProperty in addon UI, like the overwrite warning in Blender save-as window?

To store a user setting, I managed to access a StringProperty in my addon popup window like this: But i want to add an overwrite warning as same as the blender file save window: Is there a way to do ...
Trantor's user avatar
  • 13
0 votes
0 answers
15 views

Subdiv on odd numbers instead of even numbers?

Is there an add-on or a way to incorporate the subdivision surface modifier to not split on base-2 (A quad is split into 4 quads on Level 1, 16 quads on Level 2, 64 quads on Level 3, etc.) and instead ...
MX Peacekeeper's user avatar
0 votes
1 answer
22 views

Blender Addon Question - Change World Color

Is there a way to add an option to change the World Surface Color and Strength settings via a button? I already coded out the panel and everything, but maybe it's just based on the specific context, ...
FrostByte Studios's user avatar
0 votes
0 answers
26 views

How can I prevent operator from blocking Blender Interactions during execution?

I'm new to Blender Python programming, and for a personal project, I'm experimenting with creating a Blender Python addon. I aim to execute an asynchronous GET request when I select a button in a ...
kernage's user avatar
0 votes
1 answer
39 views

Transfer (float) vertex-attribute to vertex-weight, to allow GeoNodes to control subsequent Armature binding

In Blender 4.1 or higher, I want to write a custom modifier, which transfers values from a vertex attribute (on geometry generated by geonodes) to a vertex group (usable with other modifiers). This is ...
Mark K Cowan's user avatar
0 votes
1 answer
26 views

How to see character [closed]

Say this character's name. Are you able to put her in blender?
Rebourne Ohc's user avatar
0 votes
0 answers
27 views

How can I add a FloatVectorProperty to my addon layout? [duplicate]

How to properly register a FloatVectorProperty? When I do: box.prop(self, "amb_day_color") where ...
Oleg Kivasev's user avatar
0 votes
0 answers
21 views

method to quickly delete unconnected interior faces?

Whenever I'm optimizing a mesh for a game I will always delete faces that will never be seen by the player, finding them usually takes a while to find depending on the complexity of the model, so I'm ...
mrman's user avatar
  • 1
5 votes
1 answer
58 views

Unable to Access exposed Material Input in Addon from Geometry Nodes Modifier

I'm exposing the input to a Set Material geometry nodes modifier property in my Addon UI through layout.prop(), similar to what was done in this thread. All the ...
baby boss's user avatar
  • 125
0 votes
1 answer
59 views

Blender 4.1 addon to add time to rendered file names

I'm trying to make an addon for Blender 4.1 that adds current seconds to rendered file name. We need it for our workflow when rendering overnight, to check later which frames had the biggest gap ...
Matt's user avatar
  • 3
0 votes
0 answers
13 views

Can't use Cython to compile the Core Library of GeomDL or PyMcubes using --install-option="--use-cython" since "--install-option" is depreciated

I am trying to install Cython compiled versions of GeomDL and PyMcubes packages into Blender 4.1's shipped embedded python (...
fmotion1's user avatar
  • 1,433
0 votes
0 answers
9 views

Sun Position add on animation

I have a question about the sun position add on for a project I have. I made an animation for the sun so it looks like it's going from day to night based on the actual time and sun position from the ...
AGGELOS KYRILLOU's user avatar
4 votes
1 answer
103 views

How can I expose Geometry Nodes properties in my addon panel?

I came across this question and learned that I can actually expose properties from the Blender UI in my addon panel. So I was experimenting on exposing properties of modifiers like for example the ...
Harry McKenzie's user avatar
1 vote
1 answer
34 views

How to exposure render settings to addon panel?

I want to exposure render settings, specifically, Frame Rate, Resolution X and Resolution Y to my addon panel for convenience, I tried: ...
baby boss's user avatar
  • 125
3 votes
1 answer
78 views

How can I pass an object (like a bmesh) to an operator or should I not do that?

I have an operator that creates a certain mesh but I want to keep things modular so I separated each operation into its own operator. Like for example, I have an operator that removes vertices that ...
Megan Love's user avatar
0 votes
1 answer
372 views

Gscatter not showing up at all. blender 4.1

I'm using Blender 4.1 and i wanted to try gscatter for the first time. Doesn't work at all. I'm trying to scatter a asset i downloaded from the addon itself. I also tried to just scatter a default ...
catwithlonghair's user avatar
2 votes
1 answer
25 views

multi-file add-on cannot find import

I am working toward have a multi-file add-on, as our add-on is getting pretty long. I'm starting with a trivial example to build up from and can't even get that to work. I have two files at top level ...
Janet Rossini's user avatar
0 votes
0 answers
12 views

Copy attribute menu doesn't work on Blender 4.1.1

anyone experiences the copy attribute menu doesn't pop up at all even activating the addon? I've tried to disable other addons to see if something conflicted, no luck. It drives me crazy cause I use ...
Tao Mao's user avatar
  • 49
0 votes
0 answers
16 views

How To Capture Mouse Movements During Blender Operations

I'm looking to capture mouse movements while using specific Blender operations, such as ...
Axel Olsson's user avatar
0 votes
1 answer
23 views

AnimAll animations not exporting

I have made several objects in my scene animate using AnimAll, and a few objects animate using standard object movement using keyframes. These play back just fine in my scene, but when I export as ....
sclong's user avatar
  • 1
1 vote
0 answers
12 views

How to make Blender open Visual Studio on __debugbreak() instead of crashing?

Usually when I execute in system some python code that's using compiled .pyd module with __debugbreak() c++ command it shows window suggesting to open Visual Studio: But when I run similar code in ...
FamousSnake's user avatar
0 votes
0 answers
18 views

Blender not booting after addon installation attempt

I tried installing this addon through its python script in Blender's text editor: https://github.com/ChicoEevee/Pokemon-Switch-V2-Model-Importer-Blender?tab=readme-ov-file#readme There wasn't any ...
RisingSerperior's user avatar
1 vote
0 answers
23 views

Separate mesh by coplanar, contiguous geometry

I'd like to be able to separate an object into multiple objects based on faces that are contiguous and coplanar. So for example this maze wall mesh would turn into many wall objects; where each ...
Melvin Sovereign's user avatar
2 votes
1 answer
54 views

(Addon) check if exists an update for an addon?

I'm trying to implement a system that notifies the users when an update for my addon is available. In this case my addon is uploaded to gumroad. My thoughts about approaching this was: I thought about ...
Ommadawn's user avatar
  • 658
1 vote
1 answer
67 views

Blender 4.1 on CPU render farm

In the studio where I work, we want to upgrade from Blender 3.5 to Blender 4.1. Installing the software itself isn't an issue, but I need to open the program to install addons like GeoScatter. The ...
Arcene's user avatar
  • 13
0 votes
1 answer
68 views

panel_prop Boolean Property from property group resets automatically to default value without throwing errors

the goal was to simply have a bool value to change whether or not to show a custom panel with additional settings or no, it is modifier specific the first thought was simply register it on ...
user avatar
0 votes
2 answers
29 views

Add-on Dev: Referencing preference variable inside another module

I'm trying to expose the VIEW_3D location of my Add-on in its preferences. So far I got the user input working showing in the preferences of my Add-on. ...
STRGnine's user avatar
1 vote
0 answers
102 views

NumPy errors with compatable addons 4.1

I just upgraded to Blender 4.1 (Windows) and my addons, which say they work with 4.1, all fail because of a missing numpy.core._multiarray.umath. I don't know how ...
Lamerex2111's user avatar
0 votes
1 answer
39 views

need help with finding volume data path to be used as a driver

i want to create a driver that uses an object's volume (not scale) to determine the size of another object. I know the volume of the object, as i got it from the '3D-Print Toolbox' built-in addon, but ...
Photekh's user avatar
3 votes
2 answers
158 views

Why is my Stretch-To update button looking for Grease Pencil in Blender 4?

I've been trying to make a button to reset all the stretch-tos in my custom armature as per this question, but my previous menu work has all been in a new menu section in the sidebar of the 3D view. ...
MisterLBlends's user avatar
0 votes
0 answers
12 views

Issues when applying simulation add-ons to downloaded model

When I applied the Fracture feature of an add-on called KABOOM to the downloaded model, I got the following results I got some weird new fragments like in the image. How do I fix it? Then I applied a ...
seong's user avatar
  • 3
1 vote
0 answers
30 views

I have several files in my addon. Where should I initialize the global variable?

I have several files in my addon: __init__.py, operators.py, ui.py, etc. Where should I ...
Cyril's user avatar
  • 21
1 vote
1 answer
25 views

Color selection in palette does not update in different mode

I'm trying to create a relatively simple addon for Blender to make our workflow a little easier. I got the scripts running... kinda. I'm sure there is something about how Blender works under the hood ...
dasfrodo's user avatar
0 votes
0 answers
25 views

How to highlight a vertex in Edit Mode?

I'm working on an addon, and I have an operation that manipulate vertices in some way. The problem is that after this manipulation I want the user to easily see which vertices were effected by the ...
liad inon's user avatar
  • 101
3 votes
1 answer
69 views

How can you access a registered class of a Blender add-on from another Blender add-on?

TL;DR: I would like to use a subclass of PropertyGroup defined in one add-on as the type of a PointerProperty property of another add-on. I have two addons, Foo and Bar like this: Foo ...
T1nk-R's user avatar
  • 43
1 vote
1 answer
19 views

Adding a color field in the addon Panel

I wanted to add a color field to my Blender addon panel, with which I can adjust the color input of a Principled Volume node. But i´m struggling, how I can insert such a color field there and ...
VICUBE Animation's user avatar
0 votes
1 answer
41 views

Bool tool is not shown even though it's enabled

I enabled the Bool Tool in my Blender 4.1: However, the tool is not shown in my View3D>Sidebar>Edit. The hotkey (Ctrl Shift B) also doesn't work. Would I ...
Ogiad's user avatar
  • 5
0 votes
0 answers
25 views

Delete vertices one by one, when using the 'Add Mesh: Extra Objects' addon to plot points

I am using the 'Add Mesh: Extra Objects' addon in Blender to plot points at specified coordinates. Each point is added to a mesh of points instead of being a separate object. My goal is to implement a ...
crisplettuce's user avatar
-1 votes
1 answer
170 views

How to apply changes to an installed multi-file add-on without restarting .blend-file?

I was revisiting and enhancing some of the add-ons I've created in the past. I wonder, is there a way to update an installed multi-file add-on (if it has been changed) without reloading the Blender ...
Yaroslav's user avatar
  • 476
0 votes
0 answers
19 views

my auto rig addon pro froze

I been having this problem for 3 days now of my addon, the auto rig is bugging, all I want to do is animate & to move the body. However, my file works but the addon isn't.
Shon Soul's user avatar

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