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38 votes

How to assign vertex group to single bone

Just name your vertex groups the same as your bones. The bone named "hand.left" will animate the "hand.left" group (by default the weights are set to 1). Then both select the mesh and the armature (in ...
lemon's user avatar
  • 60.5k
35 votes
Accepted

Finding vertices in a Vertex Group using Blender's Python API

Methods 1. List comprehension As mentioned by Pycoder in the comments below, using operators is often slow. So a quicker and simpler (and X2 faster) method to get all the verts that belong to a ...
16 votes

Weight paint in cycles nodes?

You need to translate vertex weight into some proxy that nodes can read. Consider using UV as a proxy. It can be read by nodes and it can easily be mapped to vertex group weight. Create a new UV ...
Nathan's user avatar
  • 25k
15 votes
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Assign vertex group in Geometry Nodes (v3.3)

I figured out a workaround. It wasn't easy, because Blender 3.3 is terribly unstable and I would get various errors in the console while playing with settings - restarting Blender would fix them, but ...
Markus von Broady's user avatar
14 votes

How to make my icosphere inflate in a heart shape?

This approach works backwards.. starts with a heart model, and normalizes it to a sphere. This could be done with a Cast modifier, Shape-Keys..but if you roll-your-own with Geometry nodes, you perhaps ...
Robin Betts's user avatar
  • 78k
12 votes

Is there a way to save selection by faces

Actually, in Blender 2.80 you can save face selections using the "Face Maps" grouping. It is located in the "Object Data" panel. It works the same as vertex groups but stores faces instead.
Ibi's user avatar
  • 161
11 votes
Accepted

Simple methods to smooth out weight paints?

Starting from this situation, You can use the smooth tool : Go in weight paint mode Activate vertex selection (the little icon on the bottom of the screen indicated by a cube with one vertex in ...
lemon's user avatar
  • 60.5k
11 votes
Accepted

Mirror vertex selection

Choose Mirror from the Select menu and check the Extend option.
Xtremity's user avatar
  • 2,435
10 votes
Accepted

How to add a modifier to a collection?

You have to join the objects together and then apply the modifier and then you can separate by loose parts. Or Add the modifier to one object. Select all the other objects and then the one with ...
Fowl's user avatar
  • 1,101
9 votes

How to mirror copy existing vertex weights

This might be more a bug than a feature, but because of the way the "x mirror" tool works in Blender 2.79b, I was able to mirror vertex weights in an easy, but slightly counter-intuitive, way: Enable ...
NullPointerException's user avatar
9 votes
Accepted

can you add subdivision surface modifiers to specific vertex groups

No, you can't use Vertex Groups for Subdivision Surface modifier. What you can do is select region you want to have smoother and use W > Subdivide Smooth. Be aware that this method will create ...
cgslav's user avatar
  • 17.6k
9 votes
Accepted

Is there any kind of face group?

Yes, Vertex Groups doesn't work. In Blender 2.81 (or more), I use Face Maps. It works like ...
cppBeginner's user avatar
9 votes
Accepted

Using geometry nodes, is it possible to transform vertices, that are in a specific vertex group?

It's possible and really really easy to do. You just need two nodes to make it happen Demonstration: Node Setup: Note that test is the name of the vertex group. Also the vertex group should have ...
Maulik Sharma's user avatar
8 votes
Accepted

How to make an (open) object behave like rubber when penetrated by another

You could use cloth physics for the deformation part. Pin the corners or edges of the rubber object so it keeps its shape by adding it to a Vertex Group. Let the physics do the rest. Not sure how one ...
Duarte Farrajota Ramos's user avatar
8 votes
Accepted

Is it possible to see Vertex Weights in Edit Mode in the 3D View?

It looks like you have the exact same thing in 2.8, but to see the weight for the selected vertex you first need to assign it some weight, either in Weight Paint mode or with the Assign button under ...
moonboots's user avatar
  • 163k
8 votes
Accepted

Adding cloth physics to vertex group

The entire object, was in triangles which also were separated. A cloth simulation with this would never work to start with, neither would a soft-body simulation. Both are based on a interconnected ...
Xylvier's user avatar
  • 4,785
8 votes
Accepted

How to delete unused vertex groups?

You may first wish to make sure these vertex groups aren't being used for something else such as particles, shape keys, modifiers, etc. Vertex groups are used for a lot of different things besides ...
barthisius's user avatar
8 votes

Using geometry nodes, is it possible to transform vertices, that are in a specific vertex group?

A Blender 3.0+ solution As of Blender 3.0 the Attribute Vector Math node is legacy. And there is now a much simpler way to transform vertices by group. The Set Position node has a Selection input ...
Mentalist's user avatar
  • 19.3k
8 votes

How Can I Create a Sculpt Mask Based Purely on Face/Vertex Selection, Instead of By Manually Painting It?

I'm not great at sculpting, but what you can do is: Select faces in Edit Mode. Go to Sculpt Mode and from the Face Sets menu choose Face Set from Edit Mode Selection. Enable Options > Auto-Masking ...
Gordon Brinkmann's user avatar
8 votes
Accepted

How to rotate a vertex group with geometry nodes?

The node Transform Geometry changes the transformation of the geometry, but not individual elements. Since you want to change specific points of the geometry here, ...
quellenform's user avatar
  • 37.9k
7 votes
Accepted

Preserving Vertices

Vertex groups Decimate modifier has a field where you can specify the vertex group that will be affected by the decimation. The little arrows on the right set the "inverse" selection. In the image ...
Carlo's user avatar
  • 24.9k
7 votes
Accepted

How do I create multiple groups of weight paint?

You can do this by adding an additional vertex group under Properties > Data > Vertex Groups. Edit: Here's the location in Blender 2.8+
Jeff Lange's user avatar
7 votes

How to add a modifier to a collection?

As there are 2 options to copy modifiers from one object to another or multiple objects, I wish to point out the difference that is not so obvious when using either. To use either method, selecting ...
Xylvier's user avatar
  • 4,785
7 votes
Accepted

Can I find out which face is in which vertex groups?

In edit mode, select a vertex: you can read its weights assignements in the N properties panel, item tab, vertex weights (visible only if there are any).
josh sanfelici's user avatar
7 votes

How to rig a folding wallet?

You could create 3 bones, one for each side, one root that is the parent, then parent With Empty Groups: Assign the vertex groups to the correct group: Don't forget to put the Armature modifier ...
moonboots's user avatar
  • 163k
7 votes

How to make my icosphere inflate in a heart shape?

I really depend on your final animation goal ... ... here just an Icosphere (16/8) with two shape keys. Create a Basis Key and Key1 and in edit mode select midlle loop, move it down and do other small ...
vklidu's user avatar
  • 36.9k
6 votes

How to have consistent soft body physics in a specific area of an object using vertex groups?

I know this is an old post, but I thought I would contribute anyway. First you have to go into weight paint mode and paint the parts you would like to be rigid and assign this to a vertex group. This ...
Will's user avatar
  • 61
6 votes

Subtract the weights of one vertex group from another

You can use a Vertex Weight Mix modifier. Say you have Vertex Group A : And B : In order to subtract B from A, add a Vertex Weight Mix set to Subtract and to effect only group A. Result when viewing ...
Gorgious's user avatar
  • 31.6k
6 votes
Accepted

Increasing topology without affecting shape keys

Dissolve X, Vertex Connect Path J, Knife Topology Tool K With the Basis key active and all other keys set to 0.0, these operators allow me to thoroughly retopologize a character model (~18,000 ...
Michael Glen Montague's user avatar

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