Modify Weightmap
Updated: 6 Feb 2025
Adjusts the values in an existing weightmap
Modify Weightmap
Method #
This node modifies an existing weightmap using various methods, allowing you to further control how the weightmap affects the parent mesh.
Parameters
These properties control the 3D transforms of the node. Transforms will generally be inherited by child nodes, although they can be ignored through the Inherit Transform Channels attributes.
Parameter Details Position X
The objects position along the local x-axis.
Position Y
The objects position along the local y-axis.
Position Z
The objects position along the local z-axis.
Rotation Heading
The objects rotation around the local y-axis.
Rotation Pitch
The objects rotation around the local x-axis.
Rotation Bank
The objects rotation around the local z-axis.
Scale X
The objects scale along the local x-axis.
Scale Y
The objects scale along the local y-axis.
Scale Z
The objects scale along the local z-axis.
Control the inheritance of the transforms from the parent.
Parameter Details Position
Toggle inheritance of the Position from the parent.
Rotation
Toggle inheritance of the Rotation from the parent.
Scale
Toggle inheritance of the Scale from the parent.
World Position Only
Inherit the world position from the parent only, rotation and scale will be ignored. Overrides above properties.
Inherit Time
Toggle inheritance of time from the parent.
These properties control the core behaviours of the node.
Parameter Details Weightmap
TBC
Apply Mode
Choose whether the weightmap applies to the individual vertices or the mesh chunks.
- Vertices : The generated weightmap is applied to the mesh vertices.
- Chunks : The generated weightmap is applied to the separated mesh pieces.
Transform Space
Choose which transform space the weightmap uses. Does not affect falloffs.
- Local : Weights are calculated in the Local Space of the object, so transformations of the parent mesh will not affect the generated weightmap.
- World : Weights are calculated in the World Space of the scene, so transformations of the parent mesh will apply the weightmap differently depending on the mesh position.
Blend Amount
Blend the new weightmap over the existing weightmap.
Mode
Control how to modify the existing weightmap
- Value : Uses the Gain and Offset to simply adjust the existing weightmaps values.
- Inverted Value : Inverts the existing weightmap, then uses the Gain and Offset to adjust its values.
- Distance From Offset : Values are offset based on their distance from the middle value.
- Inverted Distance From Offset : Inverts the existing weightmap, then values are offset based on their distance from the middle value.
- Sine Distance From Offset : Values are offset based on their distance from the middle value, but modulated using a sine wave to increase the overall effect.
- Fade From Offset : Increasing the Offset fades away the existing weightmap.
- Fade To Offset : Increasing the Offset fades in the inverse of the existing weightmap.
Gain
Scale the generated weight values.
Offset
Offset the generated weights.
Time Mode
How the weightmap updates with relation to the timecode.
- Locked To Timecode : The weightmap animations are locked to the timecode and the same time will always yield the same results.
- Running / Looping : The weightmap animations are disconnected from the timecode and will run seamlessly at the end of the compositon.
Show Weightmap
Visualise the weightmap as vertex colours on the source geometry
These properties control where the deformer affects the geometry.
Parameter Details Enabled
Enable falloff from the position of the deformer.
Shape
Select which shape to use to draw falloff from.
- Sphere : Falloff is drawn outward from a central point, forming a spherical falloff.
- Cylinder : Falloff is drawn outward from a line, forming a cylindrical falloff.
- Plane : Falloff is drawn outward from a plane.
Shape Orientation
Along which axis the shape should be drawn.
Outer Range
The outer range from which the falloff is calculated from.
Inner Range
The inner range from which the falloff is calculated from.
Curve Power
How quickly the falloff drops to 0 at the outer falloff.
Invert
Invert the direction of the falloff.
Inputs
These properties control the 3D transforms of the node. Transforms will generally be inherited by child nodes, although they can be ignored through the Inherit Transform Channels attributes.
| Parameter | Details |
|---|---|
| Position X | The objects position along the local x-axis. |
| Position Y | The objects position along the local y-axis. |
| Position Z | The objects position along the local z-axis. |
| Rotation Heading | The objects rotation around the local y-axis. |
| Rotation Pitch | The objects rotation around the local x-axis. |
| Rotation Bank | The objects rotation around the local z-axis. |
| Scale X | The objects scale along the local x-axis. |
| Scale Y | The objects scale along the local y-axis. |
| Scale Z | The objects scale along the local z-axis. |
Control the inheritance of the transforms from the parent.
| Parameter | Details |
|---|---|
| Position | Toggle inheritance of the Position from the parent. |
| Rotation | Toggle inheritance of the Rotation from the parent. |
| Scale | Toggle inheritance of the Scale from the parent. |
| World Position Only | Inherit the world position from the parent only, rotation and scale will be ignored. Overrides above properties. |
| Inherit Time | Toggle inheritance of time from the parent. |
These properties control the core behaviours of the node.
| Parameter | Details |
|---|---|
| Weightmap | TBC |
| Apply Mode |
Choose whether the weightmap applies to the individual vertices or the mesh chunks.
|
| Transform Space |
Choose which transform space the weightmap uses. Does not affect falloffs.
|
| Blend Amount | Blend the new weightmap over the existing weightmap. |
| Mode |
Control how to modify the existing weightmap
|
| Gain | Scale the generated weight values. |
| Offset | Offset the generated weights. |
| Time Mode |
How the weightmap updates with relation to the timecode.
|
| Show Weightmap | Visualise the weightmap as vertex colours on the source geometry |
These properties control where the deformer affects the geometry.
| Parameter | Details |
|---|---|
| Enabled | Enable falloff from the position of the deformer. |
| Shape |
Select which shape to use to draw falloff from.
|
| Shape Orientation | Along which axis the shape should be drawn. |
| Outer Range | The outer range from which the falloff is calculated from. |
| Inner Range | The inner range from which the falloff is calculated from. |
| Curve Power | How quickly the falloff drops to 0 at the outer falloff. |
| Invert | Invert the direction of the falloff. |
| Name | Description | Typical Input |
|---|---|---|
| Generated Weightmap | Add a weightmap to vary the strength of the deformer across the surface. | 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 |