Seed Points

Seed Points makes the points a Simulate grows trees from. Wire it into the Simulate's Source input and a tree grows at every point, from the same graph. Each point carries attributes, such as its species and age, that the trees can read to differ from one another. The Seed Points tool on the Natsura toolbar is under Advanced.

Points

With nothing wired in, Seed Points makes a grid of points: Size (10 by 10) is the area and spacing the distance between points. Point Jitter moves each point off the grid. You can also wire in your own points, such as a scatter on terrain.

Prune thins the points out, using Point Radius.

Attributes

Each point gets:

• source_species and name, from Species Index and Species under Plant Definition (Species is the node's name by default). The node takes on the species colour, and the points are coloured to match, larger and brighter the older they are (pscale and Cd).
• source_age, from Randomize Age (on by default), which adds a random age between Age Min/Max (0 to 9). Turn on Age Attribute to take the age from an attribute already on your points (Source Attribute), with an optional remap.
• source_random, a random value, and a random up.

Random Seed changes the random values. Simulate carries every source_ attribute through to the finished tree, so later nodes can read them, for example to choose parts in an Assembly Decoration. See Traits.

Simulate reads a seed attribute and a width attribute from its source points (its Seed Attribute and Width Attribute). Seed Points doesn't write them; add them yourself to set each tree's seed or width.

Status

Seed Points is experimental. Its settings have no tooltips yet.