Hello everyone! Here's a scene showing a little code I've been working 
on in POV. It's based on some simple 2d particle simulations I've also 
been developing in Euphoria.

In this render no gravity is taken into account and only a mild wind 
from the right exists. Each sphere is moved away from any surfaces which 
might be inside it, and uses only six points of reference for its 
collision detection.

It makes a nice-looking model for sphere packing.

Questions, comments?

-Samuel Benge

Post a reply to this message

Attachments:
Download 'packing_order.jpg' (77 KB)

Preview of image 'packing_order.jpg'

Beautiful... very photorealistic. Are you planning doing an animation of it?

Fernando

Post a reply to this message

Hi Fernando,

An animation of this would take very long if I have to use variables 
that are destroyed at each frame. The process I used is iterative, and 
the varibles need to build on themselves after each frame, not be 
destroyed. I have no idea if POV-Ray handles what used to be called 
'persistant variables' or not.

Fernando G. del Cueto wrote:

> Beautiful... very photorealistic. Are you planning doing an animation of it?
> 
> Fernando
> 
> 
>

Post a reply to this message

> I have no idea if POV-Ray handles what used to be called 
> 'persistant variables' or not.
MegaPOV 0.7 supported them IMHO. But you can simulate them without 
problems, using File I/O. That's the way most particle systems do it 
(e.g. Rune's). If you do not want to reinvent the wheel, you can take a 
look at Tim Nikias' I/O Macros which can be found at 
http://www.nolights.de/download.html#IO-Macros

HTH,
Florian

P.S.: You hopefully know that the only reason I'm telling you this is 
that I really want to see this great image animated ;)

Post a reply to this message

Florian Brucker <tor### [at] torfboldcom> wrote in news:405369e1$1
@news.povray.org:

> 
> 
> P.S.: You hopefully know that the only reason I'm telling you this is 
> that I really want to see this great image animated ;)
> 
> 

IMP could help with the rendering.

-- 
Tom
_________________________________
The Internet Movie Project
http://www.imp.org/

Post a reply to this message

The problem with IMP is that I'm pretty sure that in this sort of animation
one frame depends on the previous frame, because it's a physics simulation.

However, one could compute the position of the balls before the rendering
and then the rendering would be parallelizable.

Sniff! I would love to have some free time to do some experiments like this.
But it's Saturday 6pm, and I still have to do some work.

Fernando



news:Xns94AB9AA08FB8Ctomatimporg@203.29.75.35...
> Florian Brucker <tor### [at] torfboldcom> wrote in news:405369e1$1
> @news.povray.org:
>
> >
> >
> > P.S.: You hopefully know that the only reason I'm telling you this is
> > that I really want to see this great image animated ;)
> >
> >
>
> IMP could help with the rendering.
>
> -- 
> Tom

Post a reply to this message

"Samuel T. Benge" <stb### [at] hotmailcom> wrote in message
news:405### [at] hotmailcom...
> Hello everyone! Here's a scene showing a little code I've been working
> on in POV. It's based on some simple 2d particle simulations I've also
> been developing in Euphoria.
>
> In this render no gravity is taken into account and only a mild wind
> from the right exists. Each sphere is moved away from any surfaces which
> might be inside it, and uses only six points of reference for its
> collision detection.
>
> It makes a nice-looking model for sphere packing.
>
> Questions, comments?


Looks really realistic! How the spheres lay in realistic places really lends
to that as well.

-- 
- Respectfully,
Dan
http://<broken link>

Post a reply to this message

"Fernando G. del Cueto" <fcu### [at] yahoocom> wrote in
news:4053a535$1@news.povray.org: 


> 
> Sniff! I would love to have some free time to do some experiments like
> this. But it's Saturday 6pm, and I still have to do some work.
> 
> Fernando
> 

Oh well, if you have time later then :P

-- 
Tom
_________________________________
The Internet Movie Project
http://www.imp.org/

Post a reply to this message