I hope someone can help me.

What's the best way to do animations with gravity?

I could set up a scene with various objects and then set their
directions and speeds and then povray would calculate their positions
and render that scene, and then calculate their new positions, render
and on and on.

Also how about setting gravity for individual objects, to simulate a
planets orbit around a star or other planet?

Is there a utility to generate the scenes??

Thanks in advance.
-- 

Bryan M. Smith
bms### [at] teleportcom
PGP key available upon request or key server

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"Bryan M. Smith" <bms### [at] teleportcom> writes:
> 
> What's the best way to do animations with gravity?
> 
> I could set up a scene with various objects and then set their
> directions and speeds and then povray would calculate their positions
> and render that scene, and then calculate their new positions, render
> and on and on.
> 
> Also how about setting gravity for individual objects, to simulate a
> planets orbit around a star or other planet?
> 
> Is there a utility to generate the scenes??
> 
> Thanks in advance.

Perhaps AERO suites your needs. It can be dowloaded from
http://www.ee.uwa.edu.au/~braunl/aero/
There're also some nice mpgs at this site that show the possibilities
of AERO.

Thomas

P.S.: Please use a standard signature file instead of a vcard.

-- 
Tho### [at] uni-konstanzde
http://www.informatik.uni-konstanz.de/~willhalm/
Tschieses lavs ju
An den BND: Eisbombe Fremdenfuehrer Siegfried Heilsarmee

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Bryan M. Smith (and other interested parties),

I would highly recommend that you look at this page:
http://freespace.virgin.net/hugo.elias/models/m_main.htm .  It talks about
gravity, wind and other stuff.  I don't think it goes into much detail about
orbits of planets.

If you are using scaled time and distances, the acceleration of gravity is
9.81 metres per second per second.  I believe this is also 32 feet per second
squared.  This is only applicable for objects falling towards the earth.

You might find it interesting to look at the source code I attached, with a
bouncing ball.  It does use scaled time and distances (though I can't
guarantee that it'll work if you redefine the metre.)  The blue cylinder
represents the height of a person.  If you get ride of the #version 3.1, I
think it'll work in 3.0.

Good luck!

Armagon

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Attachments:
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