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M. Lipp, P. Wonka, M. Wimmer:
"Parallel Generation of L-Systems";
Talk: Vision Modeling and Visualization, Braunschweig, Deutschland; 2009-01-16 - 2009-01-18; in: "Vision, Modeling, and Visualization Workshop 2009 (VMV)", M Magnor, B. Rosenhahn, H. Theisel (ed.); (2009), ISBN: 978-3980487481; 205 - 214.

This paper introduces a solution to compute L-systems on parallel architectures like GPUs and multi-core CPUs. Our solution can split the derivation of the L-system as well as the interpretation and geometry generation into thousands of threads running in parallel. We introduce a highly parallel algorithm for L-system evaluation that works on arbitrary L-systems, including parametric productions, context sensitive productions, stochastic production selection, and productions with side effects. Further we directly interpret the productions defined in plain-text, without requiring any compilation or transformation step (e.g., into shaders). Our algorithm is efficient in the sense that it requires no explicit inter-thread communication or atomic operations, and is thus completely lock free.

http://publik.tuwien.ac.at/files/PubDat_181216.pdf

Project Head Michael Wimmer:
GAMEWORLD: Procedural Worlds for Games