Linked Questions

3 votes
1 answer
7k views

How to select and assign vertices to a vertex group via python? [duplicate]

How to select and assign vertices to a vertex group via python? I have a script that generates random hair on sphere, and I want to make it work for a custom head mannequin, so I have to assign ...
cxnt 's user avatar
  • 397
0 votes
0 answers
38 views

How do I get indices of manually created vertex group via python? [duplicate]

I manually created a vertex group with needed vertices in blender. How do I get indices of its vertices to then create a vertex group with this vertices via python?
cxnt 's user avatar
  • 397
34 votes
4 answers
6k views

Why avoid bpy.ops?

Simple and maybe stupid question: I was reading this lot of time, that "you should avoid using bpy.ops, or "instead of ...
Zéiksz's user avatar
  • 1,979
11 votes
2 answers
10k views

Checking if a vertex belongs to a vertex group in python

I'm trying to check whether or not a vertex belongs to a particular group, I've seen a couple methods, I'm wondering why the following does not move any vertices. ...
user2699's user avatar
  • 857
6 votes
2 answers
6k views

How can I get the names of the vertex groups these vertices are in?

In my mesh I have few vertices which are in more then 4 vertex groups. I know the indices of those vertices, is there a way to get names of those vertex groups? Many tnx
Slobodan Vidovic's user avatar
7 votes
1 answer
5k views

How to assign vertex groups and bone weights through Blender's Python API?

I'm making a script to import custom objects, it is still at early stage but so far vertices, faces and uv are created correctly. I want to do weight painting through Blender's Python API but I don't ...
Alex's user avatar
  • 346
1 vote
1 answer
3k views

How to modify vertex groups through script

I'm trying to modify an object's vertex groups from a python script. I've come up with the following code which throws no errors, but doesn't change the values in the vertex groups: ...
gcs_dev's user avatar
  • 622
2 votes
1 answer
2k views

How can i get the weight for all vertices in a vertex group?

I have created this function to get the weights from a group: ...
Gaia Clary's user avatar
  • 3,822
3 votes
1 answer
1k views

foreach_get/set a mesh vertex group data?

I'm searching how to batch set/get vertex group data inside blender. using foreach_get() foreach_set() function from bpy.data.objects[0].data.vertices & numpy for a fast calculation. but it seem ...
Fox's user avatar
  • 1,952
1 vote
1 answer
846 views

how to check if a vertex group is empty or not with python

I am figuring out a way to check if vertex group is empty or not. if it contains at least 1 vertex or totally empty. I am trying to make if condition to check for empty vertex group and delete the ...
Profz3D's user avatar
  • 11
1 vote
1 answer
487 views

How to create 2 distinct objects from a single object with 2 Vertex Groups? (python)

I created this example, where I only have 1 object that contains 2 cubes (mesh). These cubes respectively have a vertex group,1 UV Map and share 4 materials. Vertex group "Cube1" white and green ...
Noob Cat's user avatar
  • 1,269
2 votes
1 answer
441 views

Vertex vs texture map

I am trying to select a model vertex by the textures alpha trough the python. But I cant figure out relationship between meshes vertex, uv-vertex and texture´s pixel rgba information. Can you help ...
MRL's user avatar
  • 340
1 vote
0 answers
563 views

select vertices in a vertex group

I have a problem, I use a mesh of about 230,000 vertices and 500,000 faces, it contains vertex groups, suppose you have to query a vertex group database and this returns some of them that you want to ...
luke_mcp's user avatar
1 vote
1 answer
269 views

How to clean weight groups by script?

After transferring weights from one object to another vertices might get multiple groups with very low weights. In weight painting view there is a tool 'Clean' that allows to remove all the groups ...
dimus's user avatar
  • 3,312
0 votes
1 answer
153 views

How can i remove verts in specific Group in VertexGroups via python?

i use Blender v2.76 and i try to remove vertices in specific Vertex Group via python ? my specific group is atm "Test123" (only example), i try now via python to remove the selected vertices from the ...
DevilSam's user avatar
  • 141

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