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"Lutz-Peter Hooge" wrote:
> Then you have a problem. They should't be able to
> do this (unless they have a high initial speed)
> because of energy-conservation.
Sure, but what's considered high initial speed? I think the particles have
high initial speed...
> I tried a similar thing (in C, but 2D), and had the
> problem that some partices that passed the
> gravity-source in small dinstance tend to gain a
> lot of speed, because the gravity force varies very
> much in a very small area, so the simulation gets
> unaccurate.
My particles collide with the planet before that happens.
> Or maybe some kind of "adaptive iteration step length"
> could help here.
Haha, that's completely out of the question with my system. Having each
particle have differently spaced interation steps - that sure would be a
mess, and practically impossible to code into my system...
Rune
--
3D images and anims, include files, tutorials and more:
Rune's World: http://rsj.mobilixnet.dk (updated Nov 5)
POV-Ray Users: http://rsj.mobilixnet.dk/povrayusers/
POV-Ray Webring: http://webring.povray.co.uk
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