In article <3ea2a059@news.povray.org> , Simon Adameit 
<sim### [at] gaussschule-bsde>  wrote:

> But complexity in raytracing can also be achieved with other rhings than
> meshes like isosurfaces for detailed landscapes.

Actually, landscapes are one of the few things for which extremely efficient
algorithms exist that are very good at limiting complexity using dynamic
level of detail methods.  Much of these where invented because the military
needed flight simulators* that where realistic long before hardware could
solve the problem without clever algorithms...

    Thorsten

* Realism was reached by the mid-1980s, or at least that was when it was
presented on SIGGRAPH for the first time.

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

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