In article <3ed015a3$1@news.povray.org>, tim### [at] gmxde says...
> It is possible to do create negative waves, just
> specify negative heights! As for objects leaving
> the water: The LSS_Object-Macro has one
> parameter for just that. Once a node gets
> accessible again, it can create a wave, be it
> positive or negative.
> Same applies to other Macros imprinting waves
> into the simulation, you may use negative values.
> 
> To do that for the boiling water, you'd have to position
> a single LSS_Drop at where you want the
> bubble to appear, and use a negative wave-height.
> Or you could use a sphere as bubble and imprint
> negative waves when moving it with LSS_Object.
> 
Hmm. Ok.. For it to work I considered having the bubbles start out 
'under' the surface as in real boiling and more or less deleting the 
spheres once they hit the surface. The problem of course was a) how to 
'delete' them so that they had the intended effect and b) how to tell if 
you hit the surface when it was already perturbed. May just experiment a 
bit with it, if I ever get around to working on it or the other 4-5 
projects I keep telling myself I need to start on/finish. lol

> As for the wind: yes, that is pretty difficult. But to
> get some aligned waves for near-wind effects could
> be possible. The algorithm isn't a full-fledged hyper-
> realistic mass-preserving simulation, so "looks
> a lot like" is probably the best you can get in some
> cases...
> But its at least better than static water! :-)
> 
> 

Definitely. Though some of us are never satisfied with merely better than 
nothing. lol

-- 
void main () {

    call functional_code()
  else
    call crash_windows();
}

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