It's an amazing accomplishment.

I'm "bothered" by the ball hitting the floor and then bouncing clear out of
the tub.

Perhaps you really mean viscosity rather than surf tension?

Have you seen Stoke's Law?
http://www.science.ubc.ca/~geol256/notes/ch7_sedmov_intro.html
http://www.phys.virginia.edu/classes/152.mf1i.spring02/Stokes_Law.htm



"Christoph Hormann" <chr### [at] gmxde> wrote in message
news:3CE291FC.E1C0909C@gmx.de...
> The second one is with balls lighter than water (800 kg/m^3), the balls
> floating leads to quite some problems as you can see.  The water
> disturbance, although speed dependant meanwhile, is still too strong and
> there is no good representation for water surface tension.
>
> Does anyone know a good method for modeling water surface tension? I right
> now only use a simple model that slows down the balls according to the
> energy required for increasing the (flat) surface area, but there probably
> are other important effects that are not covered by this.
>
> Apart from that i added realistic calculation of drag in water and air, i
> also modeled friction during the environment collisions, but without
> rotation this does not really improve realism much.  And the animations
> are in real time now.
>
> Christoph
>
> --
> POV-Ray tutorials, IsoWood include,
> TransSkin and more: http://www.tu-bs.de/~y0013390/
> Last updated 05 May. 2002 _____./\/^>_*_<^\/\.______

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