Turbulence Affector
Updated: 4 Dec 2023
Applies turbulent velocities to a field.
Turbulence Affector
Method #
This node applies turbulence to the movement vectors of a field system, applying a noisy motion with a large range of noise shapes.
The outputs from this node are just its transforms, useful for having multiple nodes follow the same motions without controlling each of their transforms individually.
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 Velocity Amount
Scale the generated affector velocities.
Randomness
The randomness of the new velocities added to the simulation.
Noise Scale
Scale the size of the noise for the turbulence.
Noise Threshold
Limit the low end noise that will be output to the field.
Mode
Choose how the turbulence effect is calculated.
- Repel : Pushes the fields away from the affector origin point.
- Attract : Pulls the field towards the affectors origin point.
- Turbulent : Pulls and pushes the field with turbulent forces.
Animation Rate
How fast the turbulence noise animates.
Update Time Mode
How the video is played in relation to the time code.
- Locked To Timecode : The video is locked to the time code and the same time will always yield the same video frame.
- Running / Looping : The video is disconnected from the time code and will loop seamlessly at the end of the layer.
Modulate By Velocity
The strength of the affector is modulated per cell by the magnitude of the velocity of the cell, so movement is stronger in faster-moving areas.
Modulate By Temperature
The strength of the affector is modulated per cell by the temperature of the cell, so movement is stronger in hotter areas.
Affector Mode
The method by which the affector is applied to the field.
- Force : The results of the affector are added to the simulation as forces.
- Velocity Modifier : The results of the affector are added each frame after the results of the simulation, and not injected into the simulation itself.
Visualise Field
Visualise the turbulence vectors in the viewport.
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 |
|---|---|
| Velocity Amount | Scale the generated affector velocities. |
| Randomness | The randomness of the new velocities added to the simulation. |
| Noise Scale | Scale the size of the noise for the turbulence. |
| Noise Threshold | Limit the low end noise that will be output to the field. |
| Mode |
Choose how the turbulence effect is calculated.
|
| Animation Rate | How fast the turbulence noise animates. |
| Update Time Mode |
How the video is played in relation to the time code.
|
| Modulate By Velocity | The strength of the affector is modulated per cell by the magnitude of the velocity of the cell, so movement is stronger in faster-moving areas. |
| Modulate By Temperature | The strength of the affector is modulated per cell by the temperature of the cell, so movement is stronger in hotter areas. |
| Affector Mode |
The method by which the affector is applied to the field.
|
| Visualise Field | Visualise the turbulence vectors in the viewport. |
| Name | Description | Typical Input |
|---|---|---|
| Velocity Node | A transform node that overrides the velocity direction and source position. | Null |
| 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 |