Leaf Group Properties

Leaf groups generate leaf geometry. Either from primitives or from user created meshes.

Distribution

Adjusts the count and placement of leaves in the group. Use the curves to fine tune position, rotation and scale. The curves are relative to the parent branch.

Group Seed	The seed for this group of leaves. Modify to vary procedural generation.
Frequency	Adjusts the number of leaves created for each parent branch.
Distribution	Select the way the leaves are distributed along their parent.
Twirl	Twirl around the parent branch.
Whorled Step	Defines how many nodes are in each whorled step when using Whorled distribution. For real plants this is normally a Fibonacci number.
Growth Scale	Defines the scale of nodes along the parent node. Use the curve to adjust and the slider to fade the effect in and out.
Growth Angle	Defines the initial angle of growth relative to the parent. Use the curve to adjust and the slider to fade the effect in and out.

Geometry

Select what type of geometry is generated for this leaf group and which materials are applied. If you use a custom mesh, its materials will be used.

Geometry Mode	The type of geometry created. You can use a custom mesh, by selecting the Mesh option, ideal for flowers, fruits, etc.
Material	Material used for the leaves.
Mesh	Mesh used for the leaves.

Shape

Adjusts the shape and growth of the leaves.

Size	Adjusts the size of the leaves, use the range to adjust the minimum and the maximum size.
Perpendicular Align	Adjusts whether the leaves are aligned perpendicular to the parent branch.
Horizontal Align	Adjusts whether the leaves are aligned horizontally.

Animation

Adjusts the parameters used for animating this group of leaves. Wind zones are only active in Play Mode. If you select too high values for Main Wind and Main Turbulence the leaves may float away from the branches.

Main Wind	Primary wind effect. Usually this should be kept as a low value to avoid leaves floating away from the parent branch.
Main Turbulence	Secondary turbulence effect. For leaves this should usually be kept as a low value.
Edge Turbulence	Defines how much wind turbulence occurs along the edges of the leaves.