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tools:s-tk:displacement-node

# Spline Displacement (Node)

This node evaluates the distance to a point on a spline and outputs a displacement to that closest point.

The accuracy of this node relies on the number of Evaluation Steps defined in the Spline Primitive or the Spline Preferences.

## Controls

### Spline

Select the Spline Primitive to use in this node.

### World Coordinates

Evaluates the spline in world coordinates.

### Maximum Distance

These two define the minimum and maximum range for the displacement. Anything at or below the minimum will be 100% displaced, anything at or beyond the maximum will not be displaced at all.

### Strength

This is the strength of the displacement and may be negative as well, pushing away from the spline.

### Distance Evaluation

This controls how the distance to the spline, which drives the displacement, is computed.

• 3D Evaluates the distance in all three directions.
• YZ Only evaluates on a YZ plane, ignoring the along X.
• XZ Only evaluates on a XZ plane, ignoring the along Y.
• XY Only evaluates on a XY plane, ignoring the along Z.

## Connections

### Inputs

#### Position

The position to find the closes point in the spline to. If this is not connected, then the current position provided by LightWave 3D is used.

#### MaxDistance

These two define the minimum and maximum range for the displacement. Anything at or below the minimum will be 100% displaced, anything at or beyond the maximum will not be displaced at all.

#### Strength

This is the strength of the displacement and may be negative as well, pushing away from the spline.

#### Function

The node connected to the function input is applied to the blending strength between the original position and the displaced position. This allows you to shape/modify the falloff.

### Outputs

#### Displacement

A displacement vector that can be plugged directly into the Input of the Displacement Node Editor.

#### Axis Displacement

If the Distance Evaluation is not set to 3D, this will output a displacement vector along the axis that is not used for the evaluation.

For example, if the Distance Evaluation is set to XZ, then the Axis Displacement will return a vector along the Y axis only.

#### Strength

This is the strength of the displacement, as a value from 0 to 1, and takes the Function input into account as well. It's almost identical to the normalised output in the Spline Proximity (node). This can be used like a weight to, for example, drive the positioning of instances.

#### Position

The position of the closes point on the spline.

#### Direction

The direction to the closest point on the spline.

#### Distance

The distance to the closest point on the spline.