Notch Reference Manual

Fluid Affector

Method

This node applies a fluid solver to the velocities of the field system, creating eddies and swirls like a gas or liquid. This solver uses the grid-based Navier Stokes method, maintaining incompressible pressures using multiple iterations of a process over the field’s voxel grid, and can have a sizeable performance impact with high-resolution fields.

Example

Transform

Name Description
Position X Move its position along the x-axis in local space.
Position Y Move its position along the y-axis in local space.
Position Z Move its position along the z-axis in local space.
Rotation Heading Rotate the object about the x-axis.
Rotation Pitch Rotate the object about the y-axis.
Rotation Bank Rotate the object about the z-axis.
Scale X Scale along the x-axis.
Scale Y Scale along the y-axis.
Scale Z Scale along the z-axis.

Inherit Transform Channels

Toggle which transform channels should be inherited. By default, all are on.

Attributes

Name Description
Simulation Speed Controls the speed of the fluid simulation.
Vorticity Confinement Scale Controls the amount of vorticity confinement – which increases the number of small swirls in the fluid system.
Diffusion Amount How much the field colours are diffused to neighbouring voxels.
Velocity Dampening How much velocities are dampened and averaged across the field system.
Solver Iterations How many times the fluid system solver is run. Higher values improve accuracy, but lower performance.

Inputs

Name Description Typical Node Input
Transform Modifier Links all transform properties to the input node. Null
Target Node Always faces the x-axis towards the inputs anchor point. Null
Local Transform Override Override the transformation values of the node, relative to its parent. Null

Outputs

The outputs section for this node is currently being worked on.