Tim Nikias v2.0 wrote:
> 
> What I don't get, to be honest, is why several people have speculated how it
> *should* be done, what's happening in the real world etc even though I was
> always talking about my particle system. My first post was along the lines
> of: My particle system does this and that, I want to overcome that with this
> and that, but don't seem to find the formula required for that.

See it a different way - you say you have a system simulating something 
having next to nothing to do with real physics and now you want the 
*correct* formula to calculate a certain effect in this system.  What 
several people gave you was the formula for conservation of total system 
energy which would be the point to start with when you do a *realistic* 
simulation.  Now this naturally does not help you because you don't care 
about the energy in your system but it should be obvious that your 
question does not make much sense then - there is no correct formula.

> [...]  And even after I've described why the
> oscillations occur, I get responses like "gravity doesn't add energy", I
> mean, come one! It *does* add energy in my model,

You should understand that most people here when talking about gravity, 
energy etc. are referring to what these terms mean in physics, not how 
you use them in your simulation system.  In physics gravity in an 
acceleration which - according to Newton - exerts a force on all masses 
in the system.  Whether or not this results in a change of velocity (and 
thereby in kinetic energy) depends on the environment.

Christoph

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