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A proposition of erosion algorithm for terrain models with hardness layer

Warszawski K. K., Nikiel S. S.

Journal of Theoretical and Applied Computer Science

2014

Vol. 8, nr 1

76--84

Processes of erosion occurring in natural environment depend on two major factors. The first is the strength of erosion force, e.g. wind, rainfall or water flow. The second is the terrain hardness or its tolerance to erosion forces. In this article we propose a method of modelling terrain erosion process where the force is uniformly distributed over the entire model with local distribution of varying terrain sensitivity. For the simulations we use two-layered terrain model. The first layer contains information about heights distribution (height-field) and simulate topography of the terrain. The second layer stores data defining its hardness (hardness-field) that represents different geological structures in the terrain.

Interated function systems for terrain synthesis

Nikiel S. S., Kirby G. H.

Machine Graphics and Vision

2000

Vol. 9, No. 1/2

47-55

This paper discusses terrain synthesis using IFS interpolation techniques by extending them from two- to three-dimensional cases. The method is not intended to be started from a purey random set of points, rather from some real or meaningful heightfield. The method is suited to near real-time computing, is deterministic, context dependent and provides control over the nature of roughness of rendered furfaces. Its speed and flexibility on standard deskop computers open up the possibility of terrain engineering.