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 make my UI wrap around the 3D view along with the cursor?

I added GRAB_CURSOR and BLOCKING to my modal operator so the mouse cursor wraps around when I perform certain operations. I also have a simple text UI that I made using blf.draw(...) Since my UI is ...
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Assign python object to a property

I basically want to have a python class that stores information about the scene and its content which I can't store in something like a property group. The idea was to do something like this: ...
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Cannot install Keentools Facebuilder for Blender on Macbook

I am new to Blender and I have installed Blender v2.82a on my MacBook Air running Catalina 10.15.4 I have downloaded "keentools_2.0.2_facebuilder_for_blender.zip". When I navigate to it through ...
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*.JT CAD format direct import

Has anyone stumbled across a decent way of importing .jt CAD files into Blender? Direct import would be nice. Currently I am using CAD Exchanger (paid license) but if someone is using an different ...
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Snap objects to floor

I'm a beginner in blender scripting, in How to place any object on the 'floor' of a scene?, @MACHIN3 wrote this simple but smart code. Can you explain me the meaning of every line? ...
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Custom Icons not showing up in Add-on

The structure of my add-on files is this: ...
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Choose an active tool when I switch modes with the grease pencil

Hye everyone, To make my life easier with the grease pencil, I'm making an add on that allows me to switch between edit mode and paint mode quickly, so that when it goes into edit mode, the active ...
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Add-on not showing up in Blender 2.82

Today, I downloaded Blender 2.82 and attempted to install an add-on that would allow me to export models in a format compatible with the program MikuMikuDance (MMD for short). After doing my research, ...
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Turning a single file Add-on into a multiple file Add-on [duplicate]

My add-on right now has this structure (It creates a panel in the 3D Viewport Sidebar): ...
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Set Raycast hit location as translate value when extruding region? [closed]

I have been looking for ways to set the translation value in edit mode to the hit location vector of a Raycast. But for some reason it offsets elsewhere. Is this because the values are different?
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Enable add-on using script doesn't work

I am trying to install and enable the add-on using api in the centos 7.6.1810 aarch64. The add-on can be installed into add-on folder and no error reported when enabling it. However, the status of the ...
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Turning tree-skelton into quadrilateral mesh

I am working on a tree generation Add-On and have already managed to create tree-skeletons defined by a bunch of nodes and their respective connections: Each node has a radius assigned to it, that ...
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Help converting from tessface in old addon in Blender 2.8

I have been using this addon for years and it has prevented me from moving to 2.8 till now, but I thought I would try my best to convert it I managed to convert almost all of the script and am just ...
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How to plot 1/x^x in Blender using Z function surface

I am looking to plot math functions in Blender using the Z function surface Add-On. It works great for functions such as: 1/x**2 But fails for functions like: ...
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convex hull decomposition addon - is there any that still work?

I have always used the blender addon that uses a V-HACD EXE to do convex hull decompositions, but today it stopped working. the addon i used was this: https://github.com/andyp123/blender_vhacd/...
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Why does the Archipack add-on add a black wall to my scene when trying to add a window? [duplicate]

I was using Blender 2.82a's Archipack add on, and whenever I try to add in a window to my scene in Blender, it comes up with a black wall looking thing, and a search bar, and I can't do anything to my ...
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Custom data segments update

I am developing an addon where I need store segments curve data. I store that info in a curve propertie as a dictionary where the keys are the segments and the value are the data that I need to ...
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Facebuilder addon not responding

When I use blender it works properly but when I use the face builder add on and try to view and pin the image, the blender stops responding .Please help me.I repaired the blender software,ran blender ...
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How can I code this text-field cum search bar in my own script?

I have been trying to create a similar UI element in my own script, but I have no idea how to do it. I tried the 'Edit Source' option in the right-click menu, but it's not very clearly what's ...
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Add-on UI Picture Gallery [closed]

How do I create a menu in UI that is similar to choosing a MatCap in Workbench?
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HIDE_HEADER in bl_options over rides the panel location in the UI

I am assembling my first add-on and I have a particular order I would like my panels to stay in inside the UI. This is easily done by rearranging the order in which each panel is registered. However, ...
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How could I execute something when I toggle the boolproperty that append on bpy.types.VIEW3D_HT_tool_header.append? [duplicate]

How could I execute function when I toggle the boolproperty that append on bpy.types.VIEW3D_HT_tool_header.append? I only can use this code to display the checkbox on HT_tool_header,and get the bool ...
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Motion Capture with Dual Kinects in Blender [closed]

I have been attempting to use two kinects to do motion capture. Before my trial expired, I was able to use iPi Mocap Studio to record the information then export as a bvh to blender. Does anybody ...
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Python: Creating a Cube which size is the total of selected Objects

So I'm just getting started in Python, and I'm trying to create a script that creates a cube that encompasses the selected objects, and then apply a mesh deform modifier to those selected objects that ...
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How to apply modifiers and keep shapekey's driver?

Blender cannot apply modifiers with keeping shapekeys so I used addons (ShapekeyTools,ApplyModifier). Both of them keep shapekeys but don't keep shapekeys'driver. How can I solve this?
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How do I create a PropertyGroup class with a reference to a derived class object?

I have a base class called FileImporter: class FileImporter(bpy.types.PropertyGroup): pass There are two derived classes ...
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Change UI Layout text size in an Add-on

My situation right now: I can change the scale of operators and input fields with row.scale_y, but the text inside of the element remains the same size. What I am ...
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context.material.node_tree - context has no attribute to material?

I am trying to write an addon, I am making a node group that will be created with a single button however I have run into issues with these final lines: ...
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I Cannot make GIS Blender 2.82 Addon for Windows work

I am not sure what I did wrong during the process of installing the GIS add-on, but for some reason even after unchecking and rechecking its checkbox in Preferences, there is still no sign of any sort ...
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Custom property not evaluated on first frame of animation

I am adding a bunch of properties to cameras with my add-on. To support animation during renders, I add a frame_change_post handler like this: ...
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How to remove or uninstall addon [duplicate]

In previous version there was a button REMOVE to uninstall or remove the addon. Im using 2.82 how can i uninstall or remove the addon. I do not want to disable the addon by uncheck. I want to remove ...
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Is there an animation library addon for Blender?

I'd like to save a character rig's animation data for reuse on the same rig in different scene files (eg walk cycles). In Maya I've used scripts such as PAIE or Studio Library. Does anything like ...
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Dynamic CollectionProperty In Blender

With the given sample of CollectionProperty from blender API page, we can have a collection of SceneSettingItem which stores a 'name' in ...
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Installed py as addon but not appearing anywhere

I'm using Blender 2.8 and I tried installing this addon from https://github.com/JoseConseco/retarget_with_empties but not seeing any installed addon. Anyone can try and see what's wrong?
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Trying to find a way to make a true pixel screen

Using UVs to animate the shapes on the screen would be hard and tedious so i want to use geometry to impact which dots light up the compositor won't really help as it pixelates where the camera is ...
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Bullet Constraints Tool Add-On [duplicate]

I downloaded this add-on, but can't seem to find where to use it in any of the menus. I'm using version 2.81 of blender. Does anyone know where I can find it in version 2.81? Or does it even work in ...
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Add-on Custom UI add icon [duplicate]

In the add-ons I am writing, I can only put text in the fields. I would like to add some icons. Is there a way to do this? Thanks.
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How to batch export all UV layouts for multiple objects?

I'd like to export UV sets for several objects which I need to be separated. Imagine one layer per object on a PSD file... right now im exporting the maps one by one but would like to try writing a ...
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How can I make an addon that stores arbitrary data with a .blend file?

What I'm trying to do I'm trying to make an addon that can import Minecraft model files. Unlike many 3D files, Minecraft files use a hereditary system where each model file can have a parent file ...
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How do I use multiple columns in my add-on UI?

In the add-ons I am writing, I can only put one entity per line. I would like to be able to put multiple of them in one row. Is there something that allows me to do this? The image from ArchiMesh is ...
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Annotation not snapping in EDIT mode, works fine in OBJECT mode (using Bsurfaces addon in Blender 2.8)

https://youtu.be/47LF4o0hkXY?t=611 Im using Bsurfaces addon like in this tutorial in Blender 2.8 At 10:11 if I draw an annotation in EDIT mode does not snap to the mesh. It works fine in OBJECT mode....
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How to fix this traceback error with this addon? [duplicate]

I'm trying to use this addon: https://github.com/ucupumar/bevel-curve-tools/blob/master/init.py in blender 2.82 but when I'm creating a new beveled curve I get this error: ...
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Addon Webpage interaction

I am creating a new addon and would like to embed a webpage as the addon's UI, maybe in a panel? A locally running webserver would send this to blender and have the user interact with. Is this ...
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smart facetracking blender addon?

is there no addon anyone made yet for simple facetracking in the fashion of like "moves" from maxon for c4d? maxon moves addon for c4d I know you can track faces in the motion tracking Editor of ...
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FloatProperty not showing on UI panel [duplicate]

I'm using Blender 2.79 and trying to add a custom FloatProperty to a panel in an addon. The problem is that I can't get it to show up. ...
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27 views

Tool or addon for showing textures on PC

I'm fairly new to Blender, but have done some small things and a lot of tutorials in Blender. Due to this I now have a lot of different textures on my pc, but am lacking the tool or addon for Blender ...
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Is it possible to force invoked default transform operator to start/finish with custom event?

This is a very simplified version of the addon, I'm working on: ...
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blender crashes when creating new material slot with python addon

I am making a python addon, and I have a panel in the node editor that includes the following line: ...
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How to install import_3dm add-on properly?

I'm totally new to blender - mostly work in Rhino, but am wanting to use it to render models that I build in rhino so am trying to install the "import 3dm" addon. I had blender 2.80 installed. Tried ...

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