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what's the meaning of $ in Lsystem


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The $ symbol allows you to set the turtle's up vector. This is useful if you attach objects and need to have them face a certain direction.

The reason Lsystem grammar is different from that of the rest of Houdini is because the people who invented it where mathematicians and botanists. It's primarily been designed as a language to describe and model the topology generated by cell division, and plant morphology.

Edited by Macha
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