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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39
votes
2answers
155k views

Installing an addon

There is this addon that was built called Window Generator 2. It can be found at this BA thread. However, when I go to the download link it shows up in a new tab as a bunch of code. How can I ...
12
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1answer
4k views

Addons: Only some .zips will install

Why is it that if I go to install an add-on from User Preferences > Add-ons > Install from File... and choose a *.ZIP, some add-ons will install, while others will return me to the User Preferences ...
6
votes
2answers
1k views

How do I get a mesh data-block with modifiers and shape keys applied in Blender 2.8?

I'm trying to update an exporter to work with Blender 2.8 but can't seem to get a mesh data-block modified by modifiers or shape keys. It always gives me the base mesh. I'm currently using ...
7
votes
2answers
2k views

Object selection box with eyedropper

How to add an eyedropper functionality to prop_search in my addon? ...
7
votes
1answer
2k views

How to download and install an add-on hosted on github properly?

I have downloaded an add-on hosted on github today using this green 'Download/Clone' button. However, when I try to install it via User Preferences > Addons > Install it does not appear in the Add-on ...
7
votes
1answer
2k views

Accessing bpy.context gives a '_RestrictContext' warning, how to fix this?

I got this error message when I try to enable my addon. ...
8
votes
1answer
6k views

Dynamic EnumProperty by type of selection

Iam searching for a method to get a EnumProperty by the type of the object (Lamp, Geo, Camera) thats selected in the viewport. E.g. If the selected object is a lamp, it would be nice the enum ...
24
votes
1answer
7k views

How to implement custom icons for my script/addon?

Is it possible to use different icons other than the default set and how?
16
votes
4answers
4k views

Workflow for developing add-on/script

I'm trying to figure out a good workflow for developing scripts and add-ons in Blender. Here's what I'm currently doing as I try my luck with a PyNode add-on: Open blender Create a text editor panel ...
10
votes
3answers
5k views

Object selection box in addon

In my addon panel, how can I have an object selection box? And what data type would I use to store the the selected object? It should look like this:
4
votes
2answers
2k views

Object creation slows over time [duplicate]

I know that this has been asked before, but the answers that others have received did not help me much. When creating objects through Python, using bpy.ops.mesh.primitive_cube_add() there is an ...
2
votes
1answer
186 views

Trying to make a menu using multiple modules

It's not giving any erros when installing it, also tested the operators before and and they were working fin but i can't make the menu show up. I was trying to call it using "DC_MT_macro_menu&...
7
votes
2answers
14k views

“Install from File” not working to install addon

I'm facing a problem with the installation of a downloaded addon. I press Ctrl+ALt+U to access preferences panel in addons I select INSTALL FROM FILE Then a choose caliper script and press INSTALL ...
4
votes
1answer
478 views

Copy existing property from e.g. Properties window to a custom panel

So if I have this custom panel in the 3D view, is there a way I can take a property from for example the properties window and paste it onto my panel below the "text" prop, without creating a new ...
22
votes
1answer
15k views

How do I copy a property from an active object to selected objects?

I have been using the Copy Attributes add-on to copy some properties from active object to selected objects. This add-on is not enabled by default and must be explicitly enabled. But its a very useful ...
17
votes
1answer
9k views

How to make a curtain

In the addon ArchiMesh there is a Japaneses curtain feature, but, it looks straight and does not have the fold that I want in it. Is there an addon that can do this for me? If not, how can I make a ...
4
votes
1answer
1k views

Bundling python library with addon

I'm making an add-on that uses the websocket library from python. Is there a way to include it in the add-on .zip file? Or do I have to add it to the site packages folder in blenders included python ...
10
votes
4answers
2k views

How can I create a mathematically correct arc/circular segment?

Given 3 vertices, or a chord and height, how can I create a mathematically correct arc/circular segment with an even distribution of vertices while controlling for the number of vertices. I ...
5
votes
1answer
4k views

Can blender use the Alpha channel of an image as transparency on a plane?

I was wondering if I used Photoshop to make a portion of my picture transparent, Would Blender be able to use those transparencies while importing the photo using the Import images as a plane Add-on
1
vote
2answers
346 views

Having trouble creating an Addon with multiple modules

I'm trying to put together an add-on that contains two operators. I've gotten each operator file to run properly independently, but I'm having trouble figuring out how to write an init.py file that ...
9
votes
3answers
2k views

Is there an addon for renaming an object with a keyboard shortcut?

I want to use a keyboard shortcut to bring up a text field for renaming the active object. As far as I know, currently no such shortcut exists, and making one will require an addon. I seem to ...
5
votes
2answers
1k views

What is the best way to model the intersection of multiple hard-surface pieces?

What is the best way to model the intersection of multiple hard-surface objects? Not technically different "objects" persay - but where different pieces meet visually. What are various ways ...
15
votes
3answers
1k views

Add a custom curve mapping property for an add-on?

Question The title says it all. I want to be able to make this in Blender's UI, and sample it at specific points from an add-on: Problem There is very insufficient documentation on this, and I can't ...
27
votes
3answers
13k views

How can I generate an object from a mathematical function?

I have a formula that mathematically describes the heart surface in Cartesian coordinates: $$\left(x^2+\frac{9y^2}{4}+z^2-1\right)^3-x^2z^3-\frac{9y^2z^3}{80}=0$$ Unfortunately, I have no idea how ...
8
votes
1answer
7k views

What are the not so obvious features of Rigify?

I watched a tutorial which explained that scaling the finger controls would make them curl. Are there more features like curl by scale in rigify which are not intuitively discoverable ?
23
votes
3answers
11k views

Is there a way to restart a modified addon?

I'm currently twiddling with an old addon and insert some print statements for debugging. Currently I'm restarting Blender each time to see the new messages. Is there a way to 'refresh' an already ...
6
votes
4answers
2k views

Update all materials, but keep their color and textures

I am working with a very large scene file that was imported as .obj. This gave me basic blender internal materials with colors and textures. I then used an addon to convert all of the BI materials to ...
3
votes
1answer
737 views

Appending a sub-menu under an existing sub-menu in Blender 2.8

I can add menus to Blender 2.8 with the python code below but how can I add a sub-menu using python to one of Blenders existing menus? I'm trying to add the rtMyMenu sub-menu under Blenders Add-Curve ...
25
votes
3answers
16k views

How to do photogrammetry within Blender?

Photogrammetry is really frustrating. The good tools are really expensive, and the free tools are either really old, or really difficult to get working because they're pet-projects... or they're ...
13
votes
4answers
14k views

List of objects in scene with counts (verts, faces, tris)?

Is there a way to see a list of all objects in the scene with the number of verts, tris, faces of each object? I know you can click on a object and go into edit mode and it shows the numbers, but if ...
10
votes
1answer
1k views

What is Animation Nodes addon used for?

What is Animation Nodes addon used for? Where can I find more information about it?
16
votes
2answers
22k views

Archipack window not showing anything

I haven't tried Archipack previously but anyways, after going like this: and when I click on Windows it shows up this black patch in middle of the viewport: I tried Wall and it worked well as it added ...
11
votes
2answers
5k views

How do I space quads evenly?

Is there a way in blender or an addon that allows me to select a bunch of faces (or verts) and evenly distributes (or relaxes) them into quads clean quads. Without screwing up the vert ID/order. ...
11
votes
2answers
1k views

How to write my add-on so that when installed it also installs dependencies (let's say: scipy or numpy-quaternion)?

How to write my add-on so that when installed it also installs dependencies (let's say: scipy or numpy-quaternion)? Does blender understand setuptools (setup.py)? Thanks, Note: I'm using blender 2....
1
vote
1answer
1k views

How do I fill an area with faces lined up in a grid over a not flat surface?

Hello to everyone again, I'm looking for an addon or a short cut to fill fast and simmetrically a NOT FLAT surface that needs to be closed with vertices. Doing it manually it takes a lot of time. I ...
7
votes
3answers
11k views

Where is “Regular Solids” option?

Following an online tutorial that uses an object named "icosahedron" from Add > Mesh > Regular Solids > Archimedean > Icosahedron. This object is not available in my version of Blender (2.74). ...
3
votes
1answer
835 views

How can you sync Blender configs between multiple machines?

I run Blender on several machines, it is a hassle to copy configs around, in order that you don't have to configure everything from scratch every time. Is there a sync functionality that does this?
2
votes
1answer
2k views

Batch exporting scene collections or selected objects using glTF-Blender-IO

I'm still new with python and scripting. I tried editing the obj exporter that I found. Since I'm exporting tons of object groups, I need each of scene collection or selected objects to be exported as ...
4
votes
1answer
1k views

Add prefix to filename on “Save Blender File”

I want a prefix added to the name of the .blend file when saved through the "Save" File Browser. Generating the prefix and new filename is no problem, but actually using the new filename is what i ...
7
votes
2answers
2k views

Install pip and packages from within Blender OS independently

This question relates to installing pip from within Blender without the need to open a terminal outside Blender. This allows for more user friendliness and pip calls from within an add-on (as opposed ...
17
votes
4answers
8k views

Is there a way to make comments in the node editor?

I'd like to have a node like the Frame node but one that can have lots of text, not just a header. I've looked and it looks like there isn't any such capability so far, so I was wondering how easy it ...
15
votes
1answer
3k views

How can I get a list of the installed addons using the API?

How can I get a list of the installed addons and the version number so I can print out and use as a simple reference when checking for updated scripts? I've looked at ...
9
votes
1answer
3k views

script custom previews in a menu

I want to know how to create a menu with previews for an add-on. Until now I know that this is related with the bpy.utils.preview. I'm making an add-on that appends ...
13
votes
1answer
26k views

Arrange selected vertices in a Circle [duplicate]

How do I arrange selected vertices into a circular formation quickly? The other answers does not have the same title as my question. My question is direct and simple for younger beginner to search ...
8
votes
2answers
5k views

AttributeError: '_RestrictData' object has no attribute 'filepath'

I'm working on a small post-save-hook, which is working pretty nicely only if the file is saved first and then the script is loaded later on. If I install my addon from the file and I save the ...
3
votes
1answer
854 views

How to redirect output from 'bpy.ops.*'?

When calling operators such as bpy.ops.mesh.remove_doubles() it outputs how many vertices were removed into console. In some cases its better to silence it, but ...
5
votes
2answers
183 views

Addon: how to make Blender run check()/redraw when option changed?

Operators have a check() function that Blender calls when it wants to check if it should redraw. Exporters usually use this to attach a file extension to the file ...
7
votes
1answer
2k views

Problem enabling siding generator addon

I created this siding generator and I have been adding some new features and I have encountered some problems that I just can't seem to get around. Currently it is not installing into Blender 2.72 ...
5
votes
2answers
5k views

Cell Fracture addon leaving unfractured boxes?

I have been trying to make a short clip of a bullet hitting a wine glass with wine in it, but I keep running into the same problem with the add-on. Every time I have used it the result has left me ...
4
votes
1answer
3k views

Resource for Blender addons?

Trying to keep track of the updates to all the great, user-developed add-ons is fairly frustrating (at least for me). Is there currently a centralized resource where all these amazing add-ons are kept ...

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