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Animated Parametric L System

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edward
Porten
Uses parametric l system to generate multiple different trees. Blends in parameter space for transitions. L system from http://algorithmicbotany.org/papers/sigcourse.2003/2-1-lsystems.pdf. Can display grid of 144 trees using lods and branch culling. Also can switch on smoothing to see detailed branches. Keys : A - toggles displaying all trees. S - uses smooth rendering mode. C - culls small branches. L - use low lod on medium size branches. + /- - increase number of trees H - show help
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