2 Fractal terrain generating techniques

Several techniques for fractal terrain synthesis exist. The original method for generating fractional Brownian (fBm) surface uses Poisson faulting [6]. This method involves application of random faults having the Gaussian distribution (see Figure 1)

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resulting in the statistically undistinguishable surfaces (planes or spheres). The main drawback to this approach is tex2html_wrap_inline567 time complexity.

Most fractal terrain models are based on two faster methods for generating fBm: Random midpoint displacement method and Fourier synthesis.

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Figure 1: Gaussian distribution.





Ivo Marak - marak@sgi.felk.cvut.cz