Goblins by Spheroidal Weathering

Beardall, Mathew; Farley, Mckay; Ouderkirk, Darius; Smith, Jeremy; Jones, Michael; Egbert, Parris

Goblins by Spheroidal Weathering

Files

007-014.pdf (300.39 KB)

goblinMovie.mov (24.05 MB)

Date

2007

Authors

Beardall, Mathew
Farley, Mckay
Ouderkirk, Darius
Smith, Jeremy
Jones, Michael
Egbert, Parris

Publisher

The Eurographics Association

Abstract

Height map models of terrain are computationally efficient but can not represent terrain with concave surfaces. We present an algorithm for generating sandstone goblins using a simulation of spheroidal weathering. Sandstone goblins are a kind of hoodoo which are characterized by rounded concave shapes. The weathering simulation uses bubbles centered on axis aligned voxels to approximate geometry-dependent effects of spheroidal weathering. We demonstrate that the algorithm, together with appropriate surface textures, produces visually plausible goblins at near interactive speeds for most simulation parameters.

        @inproceedings{10.2312:NPH/NPH07/007-014
,
booktitle = {Eurographics Workshop on Natural Phenomena
},
editor = {D. Ebert and S. Merillou
},
title = {{Goblins by Spheroidal Weathering
}},
author = {Beardall, Mathew and 
Farley, Mckay and 
Ouderkirk, Darius and 
Smith, Jeremy and 
Jones, Michael and 
Egbert, Parris
},
year = {2007
},
publisher = {The Eurographics Association
},
ISSN = {1816-0867
},
ISBN = {978-3-905673-49-4
},
DOI = {10.2312/NPH/NPH07/007-014
}
}