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 Use Falloff Enable falloff from the position of the deformer.
Falloff Shape Select which shape to use to draw falloff from.
- Sphere : How quickly the falloff drops to 0 at the outer falloff.
- Cylinder - X : Falloff is drawn radially outward from a line along the x axis, forming a cylindrical falloff.
- Cylinder - Y : Falloff is drawn radially outward from a line along the y axis, forming a cylindrical falloff.
- Cylinder - Z : Falloff is drawn radially outward from a line along the z axis, forming a cylindrical falloff.
- Plane - X : Falloff is drawn outward from a plane formed on the YZ axis.
- Plane - Y : Falloff is drawn outward from a plane formed on the XZ axis.
- Plane - Z : Falloff is drawn outward from a plane formed on the XY axis.
Falloff Range Limits the range the deformer is effective at.
Falloff Inner Range The inner range from which the falloff is calculated from.
Falloff Curve Power How quickly the falloff drops to 0 at the outer falloff.
Invert Falloff Invert the direction of the falloff.
Falloff Curve Visualises the falloff curve, from being completely in effect to no longer effective.
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 |
|---|---|
| Use Falloff | Enable falloff from the position of the deformer. |
| Falloff Shape | Select which shape to use to draw falloff from.
|
| Falloff Range | Limits the range the deformer is effective at. |
| Falloff Inner Range | The inner range from which the falloff is calculated from. |
| Falloff Curve Power | How quickly the falloff drops to 0 at the outer falloff. |
| Invert Falloff | Invert the direction of the falloff. |
| Falloff Curve | Visualises the falloff curve, from being completely in effect to no longer effective. |
| Name | Description | Typical Input |
|---|---|---|
| Falloff Node | TBC | TBC |
| Generated Weightmap | TBC | TBC |
| Transform Modifiers | TBC | TBC |
| Target Node | TBC | TBC |
| Local Transform Override | TBC | TBC |
| Position X | TBC | TBC |
| Position Y | TBC | TBC |
| Position Z | TBC | TBC |
| Rotation Heading | TBC | TBC |
| Rotation Pitch | TBC | TBC |
| Rotation Bank | TBC | TBC |
| Scale X | TBC | TBC |
| Scale Y | TBC | TBC |
| Scale Z | TBC | TBC |
| Get World Position X | TBC | TBC |
| Get World Position Y | TBC | TBC |
| Get World Position Z | TBC | TBC |
| Blend Amount | TBC | TBC |
| Animation Speed | TBC | TBC |
| Inner Range | TBC | TBC |
| Outer Range | TBC | TBC |
| Falloff Curve Power | TBC | TBC |
| Gain | TBC | TBC |
| Offset | TBC | TBC |