15 votes
Accepted

I am not at all able to paint weight paint on the plane

Weight paint is a somewhat confusing term, because you're really only painting the vertices. To be able to cover the plane with finer granularity, you need to subdivide it, giving it more vertices to ...
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11 votes
Accepted

Omit certain bones from Automatic Weight calculations?

For bones that you don't want to deform the mesh, uncheck deform in the Deform Panel of bone properties.
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  • 77.6k
10 votes
Accepted

Adjust fall off custom curve of Vertex Weight Edit modifier using script

As a one-liner : bpy.context.active_object.modifiers["VertexWeightEdit"].map_curve.curves[0].points[1].location = (1, 0.4) Let's see how we cracked this ...
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  • 25.2k
8 votes
Accepted

A strange bias for Vertex Weight Edit Modifier

I am not quite sure(I would have to go under several more trials) but I think I solved it. It can be achived by Switching the Fall off type to Custom Curve and let the Curve always be 1. As for ...
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8 votes
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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 ...
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5 votes

Exporting weight and bone elements to a text file

While the answer is in Blender's API docs, the relationships aren't clearly spelt out so you need to "get" some of the relationships to know how it fits together. An armature can get confusing, there ...
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  • 53.4k
5 votes
Accepted

How to set vertex weights using Blender's Python API?

I made two small changes to your script that might help it work as intended. I switched to using bmesh to save the selected verts data. I find it a bit more reliable and stable than the built in mesh ...
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  • 15.2k
5 votes
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How can I paint through a mesh while weight painting ? [Blender 2.8]

Update: In the latest Blender version it looks like you need to open the N panel, click on the Tool tab and in Brush Settings: Advanced > disable Front Faces Only Falloff > switch from Sphere ...
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  • 102k
5 votes
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Rigify: Unexpected deformation based on a given weight paint

I think it's a usage issue, not weights of DEF-forearm.R and DEF-hand.R. Because when I reduce the value of Rubber Tweak, it seems to work fine.
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  • 1,151
5 votes
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How to animate VertexWeightProximity effect with Remesh modifier active

The Remesh modifier destroys vertex groups on the mesh, rendering the Vertex Weight Proximity modifier useless in that case. Thankfully there is a built-in Attribute Proximity node that you can use in ...
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  • 25.2k
5 votes
Accepted

Scripting: Is vertex weight a proper way to store extra information on vertices?

You don't have to worry about normalization. You do have to worry about clamping. First, clamping. Blender will not let you use a vertex weight of less than 0.0 or greater than 1.0. (Well, I've ...
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  • 15.1k
5 votes
Accepted

Blender weight paint looks wrong

You don't have to worry about the yellow and green parts. It's just hue interpolation from red to blue (1→0) weighted vertices.
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  • 358
5 votes
Accepted

Selecting vertices in certain vertex group or certain weight

Use Index and Compare Floats node for selecting particular point. In this example 70th index is selected. To select only a ...
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  • 2,854
4 votes

Where is the vertex weight panel in 2.77

For the vertex weights panel (not to be confused with the vertex groups panel) to appear, you need to be in vertex select mode in edit mode and have a vertex that is associated with one or more vertex ...
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  • 4,599
4 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 ...
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  • 25.2k
4 votes

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

This technique might work too. Punch holes in your mesh, Add a vertex group and set only the rim of the hole with a weight of 1. Also add creases to the edges when necessary. Add a Subdiv modifier to ...
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  • 25.2k
4 votes
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Is it possible to get a weight paint value for a vertex group inside of a material?

Since Geometry Nodes, certainly in 2.93, you can reference any GeoNodes attribute in the 'Attribute' input to a shader tree. Strangely, I don't think you can get at a vertex-group directly (yet). You ...
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  • 54.5k
4 votes
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how can i use vertex weight value in shader nodes?

With the geometry nodes it is now possible to use the weight almost directly (however I believe the "Vertex group" node will be added to the shader nodes some day to make it straightforward)....
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  • 191
4 votes
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Eyes not following head even even if the eye bones are parented to the head bone

Your eyes cumulate both a classic parentage to their bone and a parentage through Armature modifier, you need to choose either one or the other (either remove the parenting or the modifier):
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  • 102k
3 votes
Accepted

Weight transfer producing undesirable results for clothing(2.78c)

I suggested projected face interpolated in the comments, but in your case "nearest face interpolated" works better. The reason is 'projected' projects along faces normals and in your case, some faces ...
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  • 46.2k
3 votes
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How to make this script to quickly set specific weights? (Screenshot attached)

If that can save you some time. See the commented part below: ...
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  • 46.2k
3 votes

Data transfer to a mesh with different topology

I was able to get a uv transfer using the the Data Transfer Modifier. Select object to transfer the UVs to, add the Data Transfer Modifier In the source parameter select the model to get the uvs from, ...
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  • 31
3 votes

Subtract the weights of one vertex group from another

The data transfer function may help you. You will have to set your two objects as they overlap. Then use the "data" button in the "Data transfer" section. Then choose "vertex groups" as shown here ...
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  • 46.2k
3 votes
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Cleanup Vertex Weights

You want to be in Weight Paint Mode. From there, goto Weights >> Clean. The settings for which threshold you want (if its other than zero) can be found on the tool shelf, on the Clean Vertex group ...
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3 votes
Accepted

Assymetrical model with same number of vertices in each side - how to transfwer weights?

Object Mode Version Here is a test script to run in object mode. It looks for all vertex groups on active object that end with ".L", finds a matching group ending with ".R" (or ...
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  • 77.6k
3 votes

Why does my mesh enlarge upon applying automatic weights?

There are several issues here. Unapplied scales When rigging, every object's scale should be applied. if you select your rig and check its scale, you can see it isn't even nor equal to 1: To ...
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  • 8,074
3 votes

"Cluster deformers" in Blender

It sounds to me like you're looking for the Hook modifier.
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  • 6,788
3 votes
Accepted

I see no weight but mesh still deform

The Blender default color pattern for weight painting is bad. Nearly not weighted vertices displays as blue. But not weighted vertices displays also as blue. In the Viewport Overlay options in the ...
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  • 1,890
3 votes
Accepted

How to spot un-weighted vertices?

Use the options in the armature modifier: "Display modifier in edit mode" and "Adjust edit cage to the modifier result". In complement, concerned bones are generally the one used for nearly connected ...
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  • 46.2k
3 votes
Accepted

How can I control multiple points of a cloth sim?

Instead of constraints you could hook the left extremity to an empty and add the vertices of the opposite extremity to the pin group. Put the Hook modifier above the Cloth modifier. In the Physics ...
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  • 102k

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