Repeat

Repeat Begin and Repeat End wrap a piece of the growth graph so it runs several times over, each pass growing from the ends of the last.

Repeat runs a piece of the growth graph several times over, each pass growing from the ends of the last. A Grow and a Split inside a Repeat, for example, make a branching pattern that recurs at every level without copying nodes by hand.

Grow already has a repeat block and a split inside, so for most trees you won't need a Repeat block. Reach for one when you want to build your own growth engine from the parts. Simulation explains how the growth nodes fit together.

Setting one up

Select the nodes to repeat first, then use the Repeat tool on the Natsura toolbar (under Advanced). It wraps them in a pair of nodes: Repeat End above them and Repeat Begin below, nearer the Simulate. Growth graphs are wired from the tip down to the trunk, so the Begin sits on the trunk side.

Repeat Begin's repeat count (4 by default) sets how many times the block runs. Repeat End's Repeat Begin Module field isn't read by anything in 0.7.3, so leave it empty.

Prune

Prune tests a condition on each branch over several cycles. It goes into a Grow's Graph - Prune input. Experimental.

Rig to Assembly

Rig to Assembly turns a tree or branch grown in Natsura into an assembly library, so a module grown and decorated in one Simulate can decorate another tree.