Questions tagged [python]
Python is an object-oriented programming language. In Blender, it is used as a general purpose scripting language and to create add-ons to extend Blender's functionality.
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Blender / Python convert form radians to degrees;
I'd like to create a text object that displays the rotation angle, in degrees, of an object.
I found this code snippet which does almost exactly what I want, except gives units in radians.
I'm a noob ...
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Material node tree missing on scripting output
I am trying to check material nodes on a mesh with Python scripting. I was using a Iridescence material. In this material, there are two different output nodes named "Material Output" and &...
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name 'bpy' is undefined
In test.py I have the following line. It was taken from this page:
bpy.data.objects
Then I start blender from the bash prompt:...
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Load matrix transform from armature bones problem
I have a problem and I'm stuck right now in the matrix. xd
some explanation:
I have an armature object in blender called "Original_Armature" from which I want to print the transformations of ...
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How to check if selected edges forms a continuous line?
How to check, if selected edges is a continuous line? Note that one edge is deselected.
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How to change the scale of each bone?
I would like to change the bone scale for a material. I want to change the specified bone to scale -1 for XYZ as shown in the video below.
I have drawn a script to try it out as shown below, but I can'...
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How to configure the python values to fix the facial movements of a new 3d character not originally thought to work with those
I've just tracked and saved on the timeline the facial movements of Victor using OPEN CV and following this tutorial :
https://www.youtube.com/watch?v=RY_eErKlilw
The result has been good,as u can ...
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How to apply a material to a selection in Text using Python
The Blender documentation explains how to apply multiple materials to various selections in Text:
(source: blender.org)
For example, to create Fig. Red Green Blue. you would need to create three ...
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Simple script crashes blender when I run it?
I am following a tutorial series on learning python for blender. The next part of the tutorial is creating a circle and to try and learn better I work ahead, but whenever I try to run my script it ...
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bpy.types.PropertyGroup properties not updating when changed in Redo Panel
EDIT
So after some more reading I now have the following, but still cannot modify any of the values...
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How to get PoseBone local axis direction vectors in world space?
To get a bone's local Y direction vector in world space all I have to do is: PoseBone.tail - PoseBone.head
Now what is the formula to also get X and Z direction ...
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Grease pencil stroke is very thick but can't find adjustment
I'm a new user of blender. I'm importing a svg file with python and setting the material with python as well.
However, somewhere in the process the thickness is getting ruined.
svg looks nice without ...
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Shape Key interpolation
I'm trying to change Shape Key keyframe interpolation from Python. It is possible in Dope Sheet's Shape Key Editor, but can't find a way to change it from python. I can't even access shape keys. I'm ...
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blender how to import fbx operate by csv file
Is there any way to import fbx file using csv.
For example in my folder with fbx files I have those files
1.cube.fbx
2.cone.fbx
3.sphere.fbx
4.plane.fbx
5.cylinder.fbx
I would like to import only ...
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How to get the resolution of a movie sequence in VSE via python
I added a movie to the sequencer with this code.
filepath = /to/my/video/
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Getting blender camera fov or focal length from the unity3d camera fov
I'm trying to match the fov of blender camera with unity 3d camera fov.
Basically i want to calculate blender's camera FOV or focal length, given the fov of unity3d camera.
Please help.
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Using Python to select Inner loop in my mesh is producing unexpected results. Any suggestions? Blender 2.8
I have many 2d meshes that have many edge loops created with the Inset Straight Skeleton Tool and I'm hoping I can clean up some of the unwanted edge loops in an automated way.
So far I've found:
<...
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How to distribute opencv in an addon?
I would like to use the cv2 contained in opencv (Below the example). I'm not sure if it can be done, the goal is to distribute ...
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How to render preview png´s for outside of blender [closed]
I need to have previews outside of Blender. The best may be for Materials too. How can i do this in python or else?
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Is it possible for a script to act upon two different selection types?
I'm trying to create a script that triples an n-gon based on a user selected vertex. I've done this sort of thing in the past using MODO where I selected the vertex then placed the cursor over the ...
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How to convert posebone fcurve quaternion values to world space?
I am making an exporter for a custom file format that supports animations.
In this file to make animations work I need to provide anim data as quaternions in world space.
My issue is that the bone ...
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How can I make an animation using importing several x3d files to Blender by scripting?
I have some x3d files made by ParaView. I need to write a script to import these objects sequentially to Blender and make an animation. When each object is imported to 3D View Editor, a keyframe ...
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How to output in ACIS formats like .sat or .sab?
I am currently writing a program that is outputting a 3D model into a simulation software. Currently I am ouputting in .stl file format for the object using the blender python function that does this ...
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Apply a boolean modification so that it remains even without the boolean operand
I'm doing to loop through the .stl files of a folder to perform a boolean modification on them. Once the boolean modification is performed, I want to delete the boolean operand object (...
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Convert curve to mesh with specified resolution via API
I am looking for a way to convert a curve into a mesh with specified resolution via Python API. For example, a 100 m curve should be turned into a mesh where vertices are placed every 1 m along the ...
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Modifying single-object Python script to execute on all selected objects
I have a Python script that I am currently using to (excuse the confusing description) rename a given object's material's image-datablock-names to their actual filenames.
It works correctly, for a ...
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Get and Set Hide in viewport and Disable in viewport via Python API
In my plugin I have an operator that needs to iterate through potentially 100's of objects that might be 'hidden in viewport' or 'disabled in viewport' and perform some operations that require the ...
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using python to set nla subtracks to active so I can insert animations with python
[
If you look at the first picture (bottom pic) you'll see I can activate an NLA track and insert an action strip using python - it works fine no problem
The problem (look at second picture) Is I cant ...
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Not seeing AddonPreferences after registering
I'm sure I am just doing something stupid here, but whenever I create an addon preferences class and register it, I am not seeing it appear in ...
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Capture user-selected edge and the face under the mouse cursor
I'm trying to write a script that remembers a user-selected edge and selects the face under the cursor for use in follow-on functions.
I've written my script as an operator so that I can assign it a ...
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Blender 3.5: Can't install Free KitOps [closed]
I use Blender through Steam so it automatically updated from 3.4 to 3.5 and wiped all my addons. I had to reinstall all of them but the only addon giving me a problem is KitOps. Here's what it says ...
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Using ExportHelper, how do you set ex. movie or image filters in python?
How do you set ex. use_filter_movie to true before opening the file browser(using ExportHelper)?
This doesn't work:
...
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Enable/Disable Mask Modifier depending on object visiblity
I would like to know if it possible for mask modifier to be automatically displayed based on the visibility of some object.
Example: I have a character with some basic clothes. Body of the character ...
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Exporting a UV in background mode
I am running background mode on a VM without GPU. When I call bpy.ops.uv.export_layout I'm getting an error "GPU functions for drawing are not available in background mode"
I'm just calling:
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Showing the object xyz axis lines via python when moving an object
In Python selecting an object does not display the axis lines, bpy.data.objects['Cube'].x = 5 simply moves the object.
I've tried injecting keystrokes like G + X ...
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Modal draw operator repeat draw function 8 times on every action
Need advice. Is it intendant behavior? In this simple example every action in blender modal operator prints me 8 time "Hello!" (in complex it calculates coordinates and draw some shape in a ...
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Get Bone directions
As far as i was able to notice,
there is option to get the direction of the bone using bone.vector .
what if i want to know the side or up vector of the bone ?
There is at-least option to get the ...
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AttributeError: 'list' object has no attribute
I tried to use IsDecomposedBy and Decomposes code in Python Console in Blender bim but it shows this error:
...
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blender python check if the Rotate or grab mode is active?
Is there a way to know with python if the user has activated the Rotate or grab mode ( R key or G key) for a pose bone ?
Thanks
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How to bind Mesh Deform modifier with Python?
I'm trying to bind a Mesh Deform modifier to an object, but when I do that via script it creates one, sets the object to deform with (here child). But when I call bind from the script I does not bind ...
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Get if a drag and drop was done from the asset browser in python?
My idea is to use a modal operator, or a modal function that runs in the background.
The idea is to get an if statemen event based on a hypothetical drag and drop from the asset browser.
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Google Colab: Render terminates itself [closed]
I've been trying to render a water simulation with Google colab. I followed a bunch of youtube tutorials, but I always get the same error when trying to render.
Input:
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python navigation to NLA sub-track of an object
I need to fix up animation on a character mesh every time I resync a linked armature, because the related mesh shape_keys animation gets deleted. Manually I have to navigate to the mesh object, ...
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Handling changes in the depsgraph crashes Blender
I am trying to watch changes in the depsgraph so that ever time I assign a material to a mesh, all its sibling meshes (those that share a parent) are assigned the same color.
The way I do that is in ...
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Matrix not applying to pose bone correctly
I'm attempting to import animations from text files but I can't seem to figure out how to properly import it. If I make a list of positions in a text file like here
...
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python code for Ctrl +Z
I have a small problem. I couldn't find anything even close to it in the blender stack exchange website.
I have a python code for duplicating the selected mesh as many times as specified by the user ...
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How to add points to a grease pencil stroke (or make new one) with python script?
I want to draw script-calculated curves with the grease pencil. Using this line of python I'm able to redefine the points of an existing stroke, shown below.
So far I can't add a point like this:
<...
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Edit Source Code of OpenVR Streamer
I've been testing out this blender addon that allows you to control objects with a VR remote in blender. It works well apart from one feature that I would like to change. When you offset the object's ...
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How to add an Icon to my costum Pie menu?
I want to add an Icon to my pie menu. How I can do that?
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