Attraction points sampled in the crown. More = denser, finer branching (and slower generation).
Bark (or stem) base colour, CSS.
Strength of bark furrows and colour noise, 0..1 (birch and beech are smooth, oak and pine deeply furrowed).
Dark horizontal marks on the bark, 0..1 (birch).
Trunk radius at the base (above any flare).
Lobed buttress roots at the base, 0..1 (bald cypress, rainforest emergents).
Vertical extent of the crown envelope, ending at height.
Horizontal radius of the crown envelope.
Crown silhouette.
Per-instance crown thinning, 0..1: each instance drops a random share (up to this) of its leaf cards.
Fruit (apples, berries) per leafy twig node, fractional = probability; flower heads per stalk; 0 = none.
Colours fruit and petals are picked from (seeded per fruit). CSS.
Fruit or flower-head diameter.
Total height (top of the crown).
Per-instance hue shift of foliage (± radians), so scattered copies of one variant don't look cloned.
Attraction points only pull branch nodes within this distance.
Maximum growth steps.
Random wobble added to growth directions, 0..1. High values give gnarled, twisting wood.
Attraction points this close to a branch are reached and removed.
Generator; see TreeKind.
Grow a straight central leader through the whole crown (conifers).
Leaf base colour, CSS.
Per-card variation of leaf brightness and hue, 0..1.
Leaf cards per twig node (fractional values are random). Palms/ferns: fronds; reeds: blades per stalk.
How many nodes back from each branch tip carry leaves. Conifers: many (needles along branches); broadleaves: few.
Pattern on the leaf cards.
Edge length of one leaf card (a cluster of leaves). For palms and ferns: frond length; for reeds: blade length.
Per-instance random lean when scattered, radians.
Arching prop roots from the lower trunk into the ground (mangroves).
Sides of the trunk tube. Branches use fewer, twigs at least 3.
Pipe-model exponent: a parent's radius^e = the sum of its children's. 2 = da Vinci's rule; lower = thicker limbs.
Extra radius right at the ground, as a fraction of baseRadius (0.5 = 50 % wider).
Per-instance saturation change of foliage (± fraction).
Per-instance uniform scale range when scattered.
Length of one growth step (branch segment).
Suggested minimum distance between two of these when scattered (used by createVegetationLayers).
Stems rising from the ground. 1 = a tree; several = a multi-stemmed shrub (cactus: number of arms; reed: stalks).
Radius of the thinnest twigs.
Added to every growth direction: [0, -0.3, 0] makes branches droop (gravity), [0, 0.3, 0] reach up (light).
Height of the clear trunk below the crown (where the crown envelope starts).
Maximum random lean of the trunk, in radians.
Every parameter of a generated tree or plant. All lengths are metres. Plain JSON.