Cluster Decoration

Attaches external meshes (leaves, flowers, fruit) to the skeleton.

The Cluster Decoration node attaches external geometry to the plant.

Instancing: Places copies of input meshes onto the skeleton.
Deformation: Can bend instances to follow the branch curvature.
Variation: Selects from multiple input variants based on attributes.

Concept

Dressing the Skeleton Use this to add leaves, flowers, thorns, or fruit. Unlike Surface Decoration (which skins the branch itself), Cluster Decoration attaches objects to the branch.

Inputs

Input 0 — Graph The growth graph.
Input 1+ — Geometry The meshes to instance (e.g., a leaf model).
Output — Graph The graph with cluster instructions.

Parameters

Placement

Density: How many instances per unit length.
Pattern: Phyllotaxis (Spiral, Opposite, Whorled).
Align: Orientation rules (tumbling, facing up/out).

Variation

Scale: Randomize size.
Variant Attribute: Attribute to drive which input mesh is used.

Attributes

Consumes: u, width, orient.
Generates: instance attributes on the output points.

Workflow

Import a leaf mesh.
Connect it to a Cluster Decoration node.
Connect the decoration to a Grow node (e.g., Branches).
Adjust Density and Pattern to get the desired look.

Node	Relationship
Grow	Defines where decorations are applied
Simulate	Generates the instances

Surface Decoration

Generates skin or bark geometry for the skeleton.

Trunk Decoration