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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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15 views

How to get the object name in the hierarchy below the specified object

I want to get all the objects in "face_geo_grp" from the following hierarchical structure. In Maya, I can do that using the listRelatives command. What can I do with Blender?
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Hidden mesh boolean behavior. What is that?

Some day I would like to buy a HardOps add on, however I decide not to do it before i understand the whole work process behind the operations performed with add-on (hard surface modeling) So I would ...
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Can't Import an Addon that I wrote

Let me just get straight to the point! I use visual studio code to write my addon. If I open it through visual studio code, it works fine, but when I try to import it into Blender by loading the init....
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1answer
19 views

how would i go about opening the save as menu using python?

I'm trying to create an add-on that executes a few steps before opening the save as menu. I am the point where I can execute the options and save the file, but I would like to open the save as menu, ...
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1answer
57 views

How can I create an advanced addon with a GUI and multiple settings for Blender 2.8x? [duplicate]

How can I create an advanced addon for Blender 2.8x that is displayed in the n menu (right panel of the viewport) with multiple settings. What are the most important GUI scripts, how to add settings, ...
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1answer
18 views

Export selected objects

Does anyone know an add-on to export only the selected object to e.g. .stl format?
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18 views

Addon not correctly reloading

Disabling my addon gives this error: RuntimeError: unregister_class(...):, missing bl_rna attribute from 'RNAMeta' instance (may not be registered) and re-enabling it gives this error: ValueError: ...
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1answer
28 views

Why isn't the Loop tool add-on turning the selection into a circle?

I'm trying to do a circle in a cylinder, I unchecked flatten as it was explain in the forum but it does nothing. I probably forget something. It doesn't work if I put 100% influence, see the result:
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1answer
16 views

About the version of blender written in bl_info

When developing an add-on, I write bl_info as follows. ...
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12 views

Installing custom Pie Menu, Restricted Context Error

I am having issues creating a custom "Add Mesh" pie menu, Ive made a script, sampling from a number of different sources of code, that functions well enough from the text editor, However when i try to ...
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4 views

Dublicated `ShaderNodeCustomGroup` uses the same node tree

I'm implementing procedural nodes addon with custom nodes. (For Blender-2.81) Some of them should use unique nodetree, because it can change reflecting some properties. I use class variable ...
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Blender addon module doesnt shown in sys.modules

I am trying to develop an addon that uses some classes from another addon. For that, I am trying to retrieve the python module of the dependency and instantiated the classes like this: ...
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How do I convert my 3D models and animations into Virtual reality content so that anyone can view it in 360 degree perspective?

I want to create some entertaining and informational content that anyone can watch in a VR headset that's why I want to know how to convert my 3D models as well as animations into 3D 360 degree ...
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Workspace - Filter Add-ons Question (2.80 and 2.81)

If I enable the new workspace filter add-ons feature, some add-ons that I have enabled in Blender preferences window do not show up in the filter panel. For example, I have the import AutoCAD DXF add-...
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10 views

Unable to make Addon Convert from Mesh to Curve

I am developing a game and wish to create borders for my different faces. I have created the current code which has been able to paste, but it does not seem to want to complete the convert function. ...
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18 views

Apply Modifier for Object with Shape Keys Add-on

I'm trying to update this add-on to Blender 2.8, I've update some of the code, but I got stuck on a error happening on the line 89. Any tips on how to fix it? "Warning: 'DialogPanel' doesn't contain '...
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1answer
27 views

Can't install Bledner GIS addon, Mac

Blender 2.80 Mac OSX 20.15.1 Python 2.7.15 Trying to install Blender GIS using edit > prefferences > addons > install. Addon installs: ...
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Exporting mass/volume data

I would like to export the mass/volume data for all of the objects in my blender file, about 800 in total. Is there a function/addon I can use to do this? Mass for each object is calculated as a ...
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17 views

Adding a toggle option to save dialog

I'm trying to solve the slow saving to network drives in Blender. The reason it's so slow is the way Blender handles saving internally. I found a solution that works by saving the file to a proxy ...
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11 views

Blender + Blenderkit and connection via proxy server

I use Blender within my company. Therefore I am behind a proxy server which is used for all internet connections. I wanted to test Blender's integrated Blenderkit addon. When using the Belenderkit ...
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1answer
12 views

what file to put float property and properties class blender 2.8

Thanks in advance for any help :) Premise: I have three .py files for my blender addon: 1. init.py 2. panel.py 3. quadfaces_op.py I'm trying to make a float slider that controls the face and shape ...
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21 views

Python Error Handler

Is it possible to write a full-proof error handler that will always show information to the user when executed? I'm looking to make something for development only, where I can test conditions in a ...
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1answer
20 views

Splitting an addon in modules vs having everything in one file?

Im wondering the pros vs cons of having an blender addon in a large python script (let say 7 thousands lines) vs splitting everything in different thematic modules ? I think that In the end having ...
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1answer
14 views

Is there any way to run blender 2.80 add-ons on Blender 2.79

I tried to run a Blender 2.80 addon script on blender 2.79. But it is not working. Is there any way to run it?
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1answer
23 views

Importing LEGO scenes add-on error

I am following this tutorial to create my custom LEGO scenes & characters and render them out in blender but I am getting some errors. Basically, I have downloaded this software (Studio by ...
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How to make custom list panel like “Vertex Groups” list

Does anybody know how to create panel like this? (I am new to programming.) Items of this list should have several data points ["name", value1, value2, ...] "+" ...
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15 views

Is there a crown and bridge addon?

Can I design crown and bridges with blender 2.8. I can already design models with the addon for models but I cannot find the way of designing restaurations...
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20 views

Addon for animation library pose

Blender 2.79 can do a lot. But not all. I need help with the poses library. I am trying to find a way to make the value of position which is can be animated and can work with drivers. I tried to do ...
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12 views

How can I link selected objects to an existing collection(group)?

It seems like you can only link an object to a collection, one at a time. I've tried: ...
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15 views

Pie Menu Operator with several properties

Is it possible to specify several operator properties for a Pie Menu operator? I have an operator that has two properties, axis and type: ...
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47 views

Has anyone got the Oscurart tools Add on to work in Blender 2.8?

I've enabled the Oscurart tools add on through Preferences and can see/right click to access the list of its functions/options. Its "Remove modifiers" function works, but I can't seem to get the "...
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1answer
27 views

Satellite Terrain Mapping

I use a utlity called TERRALAND in Unity that will pull in a digital elevation map (DEM) of a selected area and overlay it with satellite imagery of that area. I've used a similar utility in Cinema ...
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19 views

Problem with clicking Select in OSM addon

When I've clicked the Select button in the OSM addon, the page can't display the map.
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1answer
48 views

Export add-on error: rna_uiItemO: operator missing srna 'x.y'

I have a Blender add-on working well to perform an export. I try to upgrade it to Blender 2.80. I fixed some problems (https://github.com/petitg1987/UrchinEngine/commit/...
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bpy.ops.preferences.addon_enable or addon_utils.enable has no effect

I'use a sh script to install Blender addon automatically using bpy.ops.preferences.addon_install, which works well. But I'm unable to enable the addon automatically ...
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8 views

How do I use IvyGen to cover a house in vines?

I want to cover a house with vines, but I can't figure out how to use IvyGen. I just recently learned to use sapling, and IvyGen works similar to it as far as curves, but the rest I can't figure out.
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1answer
26 views

Add Custom Submenu to Add Menu

I have a quick and probably easy question. I have a working submenu and I want to attach it to the Add Menu (that you get by pressing Shift+A). ...
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1answer
13 views

Where Can I Download Import Image As Plane Add-On For v2.7?

I'm using Blender v2.7 (other program requires that version) and I need the Import Image As Plane, but I can't find the add-on for Blender v2.7. Where can I download the Import Image As Plane add-on ...
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25 views

Building a bpy module with custom add-ons

I have a similar question to what's been asked here quite a bit -- specifically on building blender as a python module. Would the Blender Foundation consider distributing the module either via (i) ...
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1answer
15 views

Snapping using translate

Im trying to translate a vertex in 3D space while it should snap to closest point if it finds one. I have tried with all the snapping parameters listed in the API can’t seem to make it work anyone has ...
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10 views

Problem with the MCPrep plug-in for Blender 2.8

This is what happens: When I am creating the scene everything shows up well, everything is correct even if I go to rendering mode, but when rendering the image (F12), the character's mouth disappears ...
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9 views

Is There Pixel Counter for Texture Painting?

I was wondering if Blender could count the amount of pixels you paint for texture painting. I looked it up and there didn’t appear to be anything. If there isn’t, it might be a cool add-on idea if it ...
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Why does the 'Turn Around Camera Addon' make the camera rotate slowly?

With the 'Turn Around Camera Addon' I have animated the camera to rotate around. Why is the camera rotation lagging at 1fps? Why is the camera not quick to finish the animation? What settings should I ...
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Python Add-On: Alternate interaction with UI controls

I have a situation where I want to allow the user to override specific values for a panel or window of properties - primarily a bunch of simple strings, floats, and ints. I can easily store states ...
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2answers
62 views

How to track an unknown number of objects in a multi-module add-on

Trying to initialize an empty list that will later be manipulated by operators on button click (add, remove, get). The list can either be populated with objects or object location tuples. Pseudocode ...
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25 views

Blender doesn't recognize addon for importing files

So I got an addon for importing .anim files into Blender, it says it's enabled as an addon, but when looking for the option to import one, it doesn't show up. How could I get this to work?
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1answer
33 views

Learning Complex Addon Development

I am a Blender user with some programming experience wanting to get into Blender addon development. I have looked at some tutorials for developing Blender addons, but they often seem to only teach how ...
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29 views

Blender is not showing the option for exporting as DirectX even though the Add-On/Script reports no errors

Good evening everybody. I use Blender to create Objects for a videogame, i used to use the Version 2.79 because there is the "export as DirectX" Add-On available. Now i want to switch to 2.80, because ...
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1answer
46 views

How to place mesh at the corner

I want to place my mesh at the corner so that it look with the reference image below. I tried with the shrikwrap modifier. For me did not work. I tried with the jewel craft addon but it has only X,Y,...
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9 views

Property set/get example for operator needed [duplicate]

Still trying to wrap a property into my Addon where I can dynamically control the values of the resulting variable. Take the default operator_mesh_add example and alter the definition of the width ...