Segment Pack

Overview

Builds one Bézier segment numerically from eight coordinates: start point, two control points, and end point. This is a low-level component for advanced users who want to drive the path shape itself with numbers or waveforms, such as swaying hair or flags.

Usage tips

• Its counterpart is segment_unpack. The basic shape-animation loop is: unpack a segment drawn in the editor → animate coordinates with waveforms → reconstruct it with Pack → return it to seg_N on bezier_path through a promoted input pin 📌.
• You do not need to drive every coordinate with expressions. Promote only the coordinates you want to animate to input pins 📌 and leave the rest fixed with sliders.
• If you only want the entire shape to change over time, keyframe_clip (recording-based) is more intuitive. Segment Pack is for mathematical motion.
• Pack's editable values and promoted inputs use the practical manual range -1024..1024. segment_unpack uses the full Int range for its read-only outputs because segments can come from other Path sources. Values outside Pack's range are constrained when connected back to Pack.

Related nodes

• segment_unpack — counterpart that decomposes a segment

• bezier_path — destination for the assembled segment

• motion / expression_float — sources that drive coordinates

• keyframe_clip — recording-based shape animation (alternative)

• Version: 1

Examples

Combine with Segment Unpack

1. Decompose a Bézier Path segment with Segment Unpack.
2. Process coordinate values with Sine Wave or another node.
3. Promote the corresponding Segment Pack parameters to input pins 📌.
4. Connect the processed values.
5. Connect the output Segment to the seg_N input pin on Bézier Path.

Create a segment manually

1. Set each coordinate parameter with its slider.
2. Connect the output Segment to the seg_N input pin on Bézier Path.