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In an L-SYSTEM used for procedural plant / city generation, the core operation is which?
ATopological sort of a directed graph only
BA depth-first ray march through 3D voxels
CParallel string rewriting using production rules
DIterative numerical optimisation of energy
Answer & Solution
Correct answer: C. Parallel string rewriting using production rules
Lindenmayer 1968 L-systems: parallel substitution (F → F+F−F, etc.). Turtle interpretation renders the result as branches. Used in SpeedTree etc.
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