UCT CS Research Document Archive

Voxel-Space Shape Grammars

Crumley, Zachariah , Patrick Marais and James Gain (2012) Voxel-Space Shape Grammars. In Proceedings WSCG 2012, 20th International Conference on Computer Graphics, Visualization and Computer Vision, Plzen, Czech Republic.

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Abstract

We present a novel extension to shape grammars, in which the generated shapes are voxelized. This allows easy Boolean geometry operations on the shapes, and detailing of generated models at a sub-shape level, both of which are extremely difficult to do in conventional shape grammar implementations. We outline a four step algorithm for using these extensions, discuss a number of optional enhancements and optimizations, and test our extension’s performance and range of output. The results show that our unoptimized algorithm is slower than conventional shape grammar implementations, with a running time that is O(N^3) for a N^3 voxel grid, but is able to produce a broad range of detailed outputs.

EPrint Type:Conference Paper
Keywords:procedural generation
shape grammars
voxels
Subjects:I Computing Methodologies: I.3 COMPUTER GRAPHICS
ID Code:806
Deposited By:Marais, Patrick
Deposited On:22 October 2012