Blender Modifiers | Page 3

to see the original weights of the vertex group you are
editing (provided it is affected by some modifier, obviously).
Vertex Weight Edit Modifier

The WeightVGEdit modifier panel.
This modifier is intended to edit the weights of one vertex group.
The general process is the following, for each vertex:

1. [Optional] It does the mapping, either thru one of the predefined functions, or a custom mapping
curve.
2. It applies the influence factor, and optionally the vertex group or te xture mask (null values mean
original weight, 1.0 ones mean fully mapped weight).
3. It applies back the weight to the vertex, and/or it might optionally r emove the vertex from the
group if its weight is below a given threshold, or add it if it’s above a given threshold.
Options
Vertex Group
The vertex group to affect.
Default Weight
The default weight to assign to all vertices not in the given vertex group .
Falloff Type
Type of mapping:

Linear – No mapping.

Custom Curve – Enables the the curve mapping. This shows up a curve control.

Sharp, Smooth, Root and Sphere are classical mapping functions, from spikiest to
roundest.

Random – Fully randomizes the weights!

Median Step – Creates binary weights ( 0.0 or1.0 ), with 0.5 as cutting value.
Group Add
Adds vertices with a final weight over
Add Threshold to the vertex group.
Group Remove
Removes vertices with a final weight below
Rem Threshold from the vertex group.
Vertex Weight Mix Modifier

The WeightVGMix modifier panel.

This modifier mixes a second vertex group (or a simple value) into the affected vertex group, using
different operations.
It also has an option to choose which vertices to work on (all, onl y those of the first or second vertex
group, etc.).

This implies that it might add vertices to the affected vertex group (it will never remove vertices, though),
see below for details.

Options
Vertex Group A
The vertex group to affect.
Default Weight A
The default weight to assign to all vertices not in the given vertex group .
Vertex Group B
The second vertex group to mix in affected one. Leave it empty if you only want t o mix in a
simple value.
Default Weight B
The default weight to assign to all vertices not in the given second verte x group.
Mix Mode
How the vertex group weights are affected by the other vertex group’s w eights. You have seven
choices:

Replace weights just replaces affected weights by the second weights.

Add to weights adds both values.

Subtract from weights subtracts the second weights from the affected weights.

Multiply weights multiplies both weights.

Divide weights divides the affected weights by the second weights.

Difference computes the difference between affected weights and second weights (i t’s
just the absolute value of the subtract operation).

Average computes the average value of both weights.
Mix Set
Which vertices to work on. You have five options:

All vertices affects all vertices, disregarding the vertex groups content. This option might
add vertices to the affected vertex group.

Vertices from group A affects only vertices belonging to the affected vertex group.

Vertices from group B affects only vertices belonging to the second vertex group. This
option might add vertices to the affected vertex group.

Vertices from one group affects only vertices belonging to at least one of the vertex
groups. This option might add vertices to the affected vertex group.

Vertices from both groups affects only vertices belonging to both vertex groups.
Vertex Weight Proximity Modifier

The WeightVGProximity modifier panel.
This modifier sets the weights of the given vertex group, based on the distance between the object (or its
vertices), and another target object (or its geometry).
Options
Vertex Group
The vertex group to affect.
Target Object
The object from which to compute distances.
Proximity mode

Object Distance will use the distance between the modified mesh object and the targe t object as
weight for all vertices in the affected vertex group.

Geometry Distance will use the distance between each vertex and the target object, or its
geometry.
The
Geometry Distance mode has three additional options, to