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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 update Blender's naming index thing (.001, .002, etc.) after joining objects

I've been trying to reuse certain parts of code as functions in my bpy scripts. But that means that the same bmesh will be created as 'my_bmesh.001' the next time I run that function. To deal with ...
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10 views

Relax Mesh Add-on not active in 2.8?

The relax add-on still on the 2.8 files, but doesn't have any change from 2.75. In the preferences is not visible to active. Force it 2.8 does not compatible with this inside add-on ( version also ...
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1answer
517 views

How to model an accurate parabolic mirror with a known focal point?

I am new to Blender and really enjoying it now, but... I want to make an accurate parabolic mirror with a known focal point. For example, I would want to have it focussed so that a parallel beam could ...
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16 views

Can I have a scripts folder relative to my portable Blender, but outside of its folder?

I'm currently on Windows 10. I have a portable version of blender 2.80, and I would like to use relative paths for the scripts folder in order to keep my addons separate from the bundled ones. My ...
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7 views

Traceback error trying to import open street maps add on for 2.8

Was trying to add open street map plugin for 2.7 and 2.8 but got this error. Anybody know how to fix this?
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21 views

I can not disable the Fracture tool add-on?

I added the fracture tool and my cup transformed into a square (formed from more inequal faces) and now, because I saved, closed and opened the project again (so ctrl+z doesn't work anymore) I can not ...
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25 views

2.80: Pie menus and Quick Favorite menu - conflict?

When I have the 'UI Pie Menu Official' activated I cannot open the Quick Favorites Menu when pressing q. All I get is another pie menu with possible view port option (top, front, left etc.) Any idea?
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59 views

Is Manuel Bastioni ok for commercial use? [on hold]

Is the Blender add-on ManuelBAstioniLAB also usable for commercial projects?
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22 views

How to write Addon that responds to mouse?

I'd like to write an addon where I click and drag the mouse and it creates some geometry related to the path I dragged. I can't find any info on writing Addons that listen for and react to mouse ...
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1answer
17 views

Landscape addon, tools don't show

My problem is that when I create a landscape via Shift + A, I normally get my options at the right side of the toolbar, but now (has you can see), there are only three options and I cant figure it out,...
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BlendRig Character deforming and not portable to other blend file

I am having multiple issues trying to get the first foot in the door of rigging. I downloaded the Vincent Model from the blender cloud and finally made him sit down on my chair. But either, if I move ...
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2answers
21 views

Diffuse node compability for glTF exporter

I got a problem using glTF exporter for Blender (To upload 3D content on Facebook). I downloaded the last version of the add-on on this site: https://github.com/KhronosGroup/glTF-Blender-Exporter The ...
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animation nodes error: node editor red outline and render error

im trying to use animation nodes addon. here is an image of my nodes. I am trying to make the animation nodes control the colour of the cube but when I eye-drop the cube i get a red outline around my ...
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1answer
15 views

how to repair multiple addons with the same name found?

my add-ons file shows this error message but when I go to the Blender files there is no corresponding file to the message, " multiple addons with the same name found " Please delete one of each pair ...
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19 views

Rotate vertices around point

I have a list of vertices (mathutils.Vector), which form a rectangle in 3d space. I need to rotate these vertices around the pivot point. So I have two tasks: Find the pivot point rotate the vertices ...
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1answer
20 views

Extrude face with Python

I want to extrude a face in the direction of the face normal, here is the code so far: ...
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1answer
29 views

Calculate 3D Vertices with Python

I have 2 vertices in 3d space (P1, P3) I want to create a rectangle that is aligned along the viewrotation. The vertices P1, P3 are already aligned to the current viewrotation matrix. How can I ...
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A.N.T generator noise settings

The A.N.T generator has a huge set of noise options 19 noise types 10 noise bases So if I want a particular kind of landscape (mountains, fells) how to properly set noise type and basis. Is the ...
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1answer
15 views

How do you add the Jiggly Armature code to Blender as an add-on?

So pardon the ignorance of a newbie, however I stumbled across the add-on called Jiggly Armature and upon further investigation it is in raw code so my next thought was, where do I enter this code and ...
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How to change the font size of a row inside a script via blender python

Hi Blender Python users, This is a super simple question but I can't seem to find the answer anywhere. Does anyone know how to change the size of a font inside of a panel row. For example say I ...
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18 views

A.N.T landscape error?

When ever i try enabling it gives me this error ...
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1answer
30 views

How to use bl_label inside an operator?

How do I reference the bl_label inside operators? I want to know the name of the operator based on the bl_label to be precise.
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1answer
29 views

How to keyframe smoke particle size via python script

Hi Blender Python users! I was just wondering if anyone knows a way to key frame the particle size of a smoke flow particle system over time with a python script. For example: I would like to ...
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1answer
41 views

Ctrl + T doesn't work

I usually used Ctrl+T for my Texture Setup, but it doesn't work. I enabled my node-wrangler-add-on, but nothing changed. I already googled for a whole while but didn't find anything helpful.
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72 views

Adding Add-Ons to Blender 2.8 Manually

I want to fill a glass with water and smash it. Fracture ADD-On unavailable. Need Alternative or a way to add it in 2.8 I just started in 2.8 but looks like the fracture add-on is unavailable. Is ...
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What is the appropriate way to write and distribute an addon that works with both blender 2.80 and 2.79?

I have written a python addon which is compatible with both 2.79 and 2.80. When setting the "blender" key in bl_info to the appropriate version, the code works otherwise unmodified in both versions, ...
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1answer
12 views

Paint circle with Python in 3D view direction

I want to draw a circle into the 3d view in the direction of the current view rotation. I have 2 vectors (center, mouse_pos), so I have two points in 3d space, so I have the radius - fine. This is ...
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1answer
31 views

Blender Addon save Hotkey Preferences

I have for my Blender 2.8 addon 2 keyboard shortcuts that I add to the AddonPreferences: In the init file I use this code to draw them: ...
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96 views

TypeError: string indices must be integers

I have a python script addon that imports and exports .SCNE (.json) files. While trying tom import an error comes up saying File "C:\Users\BROWN\AppData\Roaming\Blender Foundation\Blender\2.79\...
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1answer
21 views

Missing “Building Objects” addon in V2.79

I installed Blender V2.79 just a few weeks ago. I cannot find "Building Objects" in the Add-ons. Is there a way to fix this, such as downloading it?
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2answers
84 views

Will add-ons from Blender 2.79 work or be compatible with Blender 2.8?

The add-ons I use are part of my workflow so I'd like to know if I'll still be able to use them with Blender 2.8. But if nobody is sure, is there a way i can find out?
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1answer
15 views

Python draw with different Y axis

I have an addon with that you can define widgets (like panels) that are drawn into the 3d view. The are defined using gpu module, that has this coordinate system: So the widget would be at about (800,...
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2answers
78 views

New in Blender (coming from Modo)

I am trying to give it a try to Blender. After the 2.8 update I got totally in (visually) at least. I am trying to explore the UI and I find a few differences that I am trying to understand. This is ...
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126 views

Update function for NodeSocket?

How do I set a callback for socket input change (value or link change) when having a custom node? I have a socket defined like: ...
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13 views

How do I the install Blender Add-On's [duplicate]

Any links for detailed instructions to install Blender Add-On's? I unziped the Blender Cloud Add-On. Read READ Me's, searched the manual. Do I just put the unziped files in a certain directory... etc....
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2answers
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Is it possible to create custom Camera projection volume modes?

To clarify, I was talking with a friend and we started to wonder if there were camera modes beyond orthographic and perspective. As an example, one that defined its edges not with a cuboid or frustum, ...
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37 views

fSpy for interior design - Can't get it to work

I'm a beginner(Blender V2.79) and modeled a few things and grasped the basics of modelling. I've been trying to figure out how to adjust camera for an interior scene since 2 days and would love to ...
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1answer
53 views

Draw 3D with Python more in front

I have an addon with that I draw in 3d space (lines). The vertices are where I click with the mouse cursor. I use the region_2d_to_location to get a point from the mouse coordinates in 3d space. But ...
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1answer
23 views

Python viewplane

I have a question on getting the mouse coordinates (in 3d space) when I click in the 3d view. I have a draw handler in a modal operator (POST_VIEW) and I want to get the mouse cursor x, y vertex and ...
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3answers
48 views

Transform Edges to Profile precisely?

i want to do this inside of blender i already tried with transforming the edge to curve then having a rectangular extrude profile to this curve but the result is not flat , and not precise at all is ...
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1answer
189 views

Mathematical functions for mesh in Blender 2.8 beta [closed]

Does somebody know if it is already possible in the beta 2.8 to use mathematical functions for the mesh? I could not find the Addon "Add Mesh: Extra Objects", which I uses in 2.79. Any other solution ...
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1answer
27 views

Removal of Program to reinstall not gone entirely

I have 2.79 and a heap of addons that do not work when they should be, Hard Ops, etc. Also, my Alt Click on edge loops stopped working so I figured I should reinstall Blender. All the new versions ...
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1answer
32 views

How to load a sun path in Blender 2.80?

A tutorial for version 2.63 that works with a sunpath package: https://www.youtube.com/watch?v=lsovmL9hv80 A sunpath version that works with 2.71 here: https://www.ods-engineering.com/tools/ods-...
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1answer
35 views

Make a Blender script run an external program

I'm making a script to share data between Blender and After Effects: i created an addon in Blender which exports a .txt file in the After Effects directory (or a custom one) and I created a After ...
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2answers
130 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 of ...
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0answers
31 views

Asset Management (addon): How to add all materials in the scene to the library?

How to add all the materials in the scene to the library in the Asset Managemnt addon? There is any python code to do that?
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1answer
19 views

Is there a way to duplicate objects betwenn two objects?

Is there an add-on or other way to duplicate specified number of objects between other two objects? Modo has this function and for 3dsmax I have a script: https://youtu.be/A1rFqZxpxjc
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Is there any plugin to export multiple objects into separeted files? [duplicate]

I've seen similar questions but none of them look like my problem (I've been searching over an year for this answer). I've even created this acc to try and clear this out: So I work with 3D printing ...
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31 views

How do I set the env variables properly so I can run Blender with customized paths on Windows?

I want to run a customized version of Blender on Windows. So i set these env variables in a batch file. Blender picks up the user config folder alright but it still points to default addon paths when ...
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1answer
197 views

What do new bpy class naming conventions in Blender 2.80 actually mean?

What are the new class naming conventions in Blender's 2.80 Python API for add-ons? It says here: This constraint applies to the bl_idname of each class (or the ...