Combine Weightmaps
Updated: 10 Feb 2025
Blends weight maps together
Combine Weightmaps
Method #
This node blends two weightmaps, linked via the “Generated Weightmap” input, to create a new weight map for the parent mesh. These can then be used to vary the strength of Deformers on the parent mesh.
The output from this node is a vertex weightmap which is unique to the parent mesh, so can’t be used to influence other meshes.
Node placement is important! Weightmaps are generated following the deformer processing stack, so make sure to place the weightmap at some point before the deformer its applied to.
Parameters
These properties control the core behaviours of the node.
Parameter Details Apply Mode
Choose whether the deformer applies to the individual vertices or the mesh chunks.
- Vertices : The mesh deformations are applied to the mesh vertices.
- Chunks : The mesh deformations are applied to the separated mesh pieces.
Blend Amount
The blend between the input weightmaps, when mode “blend” is used.
Mode
The combine mode.
- Max : The max of the two weightmap values
- Min : The min of the two weightmap values
- Add : Adds the two weightmap values
- Multiply : Multiplies the two weightmap values
- Subtract : Subtracts the two weightmap values
- Blend : Blends the two weightmap values
Gain
Multiplies the resultant value.
Offset
Offsets the resultant value.
Min Value
Clamps the resultant value to a given minimum.
Max Value
Clamps the resultant value to a given maximum.
Invert
Inverts the resultant value.
Show Weightmap
Visualises the weightmap on the vertex colours of the parent mesh.
The properties control the time at which the node is active. See Timeline for editing time segments.
Parameter Details Duration
Control the duration of the node’s time segment.
- Composition Duration : Use the length of the composition for the node’s time segment duration.
- Custom : Set a custom duration for the node’s time segment.
Node Time
The custom start and end time for the node.
Duration (Timecode)
The length of the node’s time segment (in time).
Duration (Frames)
The length of the node’s time segment (in frames).
Time Segment Enabled
Set whether the node’s time segment is enabled or not in the Timeline.
Inputs
These properties control the core behaviours of the node.
| Parameter | Details |
|---|---|
| Apply Mode |
Choose whether the deformer applies to the individual vertices or the mesh chunks.
|
| Blend Amount | The blend between the input weightmaps, when mode “blend” is used. |
| Mode |
The combine mode.
|
| Gain | Multiplies the resultant value. |
| Offset | Offsets the resultant value. |
| Min Value | Clamps the resultant value to a given minimum. |
| Max Value | Clamps the resultant value to a given maximum. |
| Invert | Inverts the resultant value. |
| Show Weightmap | Visualises the weightmap on the vertex colours of the parent mesh. |
The properties control the time at which the node is active. See Timeline for editing time segments.
| Parameter | Details |
|---|---|
| Duration |
Control the duration of the node’s time segment.
|
| Node Time | The custom start and end time for the node. |
| Duration (Timecode) | The length of the node’s time segment (in time). |
| Duration (Frames) | The length of the node’s time segment (in frames). |
| Time Segment Enabled | Set whether the node’s time segment is enabled or not in the Timeline. |
| Name | Description | Typical Input |
|---|---|---|
| Generated Weightmap | The weightmaps to be combined. | Generate Weightmap |
| Transform Modifiers | Apply the transforms of another node to this node. | Null |
| Target Node | Modifiy the rotations of the node to always direct the z axis towards the input. | Null |
| Local Transform Override | Apply the transforms of another node to this node, relative to its parent. | Null |