Force Affector
Applies a force to particles.
Force Affector
Method #
This node applies a force to the affected particles. This is typically used to give particles a constant acceleration to simulate e.g. gravity.
All nodes connected to this node are treated as if flowing to the parent node, and inherits any transformation changes along the chain.
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 Move along the local x-axis.
Position Y Move along the local y-axis.
Position Z Move along the local z-axis.
Rotation Heading Rotate around the local y-axis.
Rotation Pitch Rotate around the local x-axis.
Rotation Bank Rotate around the local z-axis.
Scale X Scale along the local x-axis.
Scale Y Scale along the local y-axis.
Scale Z Scale along the local z-axis.
Toggle which transform channels should be inherited from the parent node. By default, all transforms will be inherited.
Parameter Details
Position X Toggle inheritance of the X Position from the parent.
Position Y Toggle inheritance of the Y Position from the parent.
Position Z Toggle inheritance of the Z Position from the parent.
Rotation Heading Toggle inheritance of the Rotation Heading from the parent.
Rotation Pitch Toggle inheritance of the Rotation Pitch from the parent.
Rotation Bank Toggle inheritance of the Rotation Bank from the parent.
Scale X Toggle inheritance of the X Scale from the parent.
Scale Y Toggle inheritance of the Y Scale from the parent.
Scale Z Toggle inheritance of the Z 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
Amount How strong an effect the force has on the particles.
Radius Alter the outer radius at which the affector is no longer effective.
Randomness How much randomness is added in the particles movement.
Life Effect Coeffs How much the particles are affected by the affector at different stages of the particles life cycle. Values 1 and 2 are control points used to control a bezier curve between values 0 and 3.
Mode Change which kind of force is applied.
- Directional Force : The force is applied in a particular direction, along the z axis.
- Repel : The particles move away from the node.
- Attract : The particles move towards the node.
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 | Move along the local x-axis. |
| Position Y | Move along the local y-axis. |
| Position Z | Move along the local z-axis. |
| Rotation Heading | Rotate around the local y-axis. |
| Rotation Pitch | Rotate around the local x-axis. |
| Rotation Bank | Rotate around the local z-axis. |
| Scale X | Scale along the local x-axis. |
| Scale Y | Scale along the local y-axis. |
| Scale Z | Scale along the local z-axis. |
Toggle which transform channels should be inherited from the parent node. By default, all transforms will be inherited.
| Parameter | Details |
|---|---|
| Position X | Toggle inheritance of the X Position from the parent. |
| Position Y | Toggle inheritance of the Y Position from the parent. |
| Position Z | Toggle inheritance of the Z Position from the parent. |
| Rotation Heading | Toggle inheritance of the Rotation Heading from the parent. |
| Rotation Pitch | Toggle inheritance of the Rotation Pitch from the parent. |
| Rotation Bank | Toggle inheritance of the Rotation Bank from the parent. |
| Scale X | Toggle inheritance of the X Scale from the parent. |
| Scale Y | Toggle inheritance of the Y Scale from the parent. |
| Scale Z | Toggle inheritance of the Z 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 |
|---|---|
| Amount | How strong an effect the force has on the particles. |
| Radius | Alter the outer radius at which the affector is no longer effective. |
| Randomness | How much randomness is added in the particles movement. |
| Life Effect Coeffs | How much the particles are affected by the affector at different stages of the particles life cycle. Values 1 and 2 are control points used to control a bezier curve between values 0 and 3. |
| Mode | Change which kind of force is applied.
|
| Name | Description | Typical Input |
|---|---|---|
| Transform Nodes | ERROR: Variable not found: {input-node-particles-transform-node-description} | ERROR: Variable not found: {input-node-particles-transform-node-typical-input} |
| Force Transformer | Transforms the force direction. | Null |
| Affected Emitters | Choose which particle emitters can be affected by the affector. | Primitive Emitter |
| Procedural Falloff | Use the distance field from a procedural system to vary how strong the affector is. | Procedural Root |
| 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 |