wow ... excellent ...

--
#macro J(N A)#local a=mod(N 3);#local W=<int(mod(A,4)*2)int(-A/4)9>*2;#if
(!mod(a 2))sphere{W,2,2pigment{color rgb<a*5A/2W.x/A*5>}}#if(a<1)sphere{W
+<2,0>2 2pigment{color rgb<a*10A 10>}}#end#end#if(N>3)J(int(N/3)A+1)#end#
end blob{J(29229171 0)threshold 1translate<-6 3>}/******Jan Walzer******/

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On Mon, 28 Jan 2002 18:54:50 +0100, "Apache"
<apa### [at] yahoocom> wrote:

>Fernando's work inspired me, so I started doing some things myself. No
>cloth-cloth collission yet though. But I'm working on it.

This is much more clothlike, if Fernando would excuse me ;)

>Does anyone know interesting and good sources of information concerning air
>turbulence and streams?

sci.computational.fluid-dynamics


Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] vipbg
TAG      e-mail : pet### [at] tagpovrayorg

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the fluttering, i assume from turbulence/air interaction, adds a lot.  how
many triangles did you use?

sorry about the email again.  right after i read jan's post to me about that
very thing...somebody by me a brain?

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> the fluttering, i assume from turbulence/air interaction, adds a lot.  how
> many triangles did you use?

The fluttering is caused by a very low damping and very small integration
steps. That way I can conserve almost all the kinetic energy while not
getting overflows or other odd behaviours.
I used 100x100 atoms --> (100-1)*(100-1)*2 triangles = 19602 triangles.

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> This is much more clothlike, if Fernando would excuse me ;)

I agree! :)

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Apache wrote:
> 
> Fernando's work inspired me, so I started doing some things myself. No
> cloth-cloth collission yet though. But I'm working on it.

Very good though it does die out quite a bit at the end.

P.S. Can you please try to limit the size of the files you post here.
We would like you to try for anims. of no greater than 700k before
uploading. By the time they are uploaded they will be 1 meg in size
which is our limit on this server. This is for the sake of preserving
space on the HD that hosts this news server. Thanks.

-- 
Ken Tyler - POV-Ray Technical Assistance Group

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I'll think about it!

thanx,
Apache

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"Apache" <apa### [at] yahoocom> wrote in message
news:3c558d82@news.povray.org...
> Fernando's work inspired me, so I started doing some things myself. No
> cloth-cloth collission yet though. But I'm working on it.
>
> Does anyone know interesting and good sources of information concerning
air
> turbulence and streams?

I'm glad not only you found an inspiration in my work but you've achieved
better results.

Congratulations!

Fernando.

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Hi there,

I saw both animations and in my optinion both are very realistic. The
difference is: Apache's cloth is a thicker one, Fernando's is a very thin
and soft one.
Anyway, my personly favorite is still the semi-transparent one of Fernando
although it shouldn't fall onto the floor but onto a female body :-))

> I'm glad not only you found an inspiration in my work but you've achieved
> better results.
>
> Congratulations!

I love simulations like this.

regards
SY

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I like the invisible tabletop ;)
-- 
signature{

Apache wrote:
> 
> Fernando's work inspired me, so I started doing some things myself. No
> cloth-cloth collission yet though. But I'm working on it.
> 
> Does anyone know interesting and good sources of information concerning air
> turbulence and streams?
> 
>                        Name: cloth03test2.mpg
>    cloth03test2.mpg    Type: Mplayer2 File (video/mpeg)
>                    Encoding: x-uuencode

  "Grey Knight" contact{ email "gre### [at] yahoocom" }
  site_of_week{ url "http://digilander.iol.it/jrgpov" }
}

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"Juergen Scharfy" <sch### [at] surfeuat> wrote in message
news:3c5659ac@news.povray.org...
> Hi there,
>
> I saw both animations and in my optinion both are very realistic. The
> difference is: Apache's cloth is a thicker one, Fernando's is a very thin
> and soft one.
> Anyway, my personly favorite is still the semi-transparent one of Fernando
> although it shouldn't fall onto the floor but onto a female body :-))

Ha ha ha :) Now I understand why somebody asked me if it would be possible
to use other objects different from spheres :)

Tchuss!

Fernando.

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That is the most amazing thing I have seen in a long time!  I thought
Fernando's was cool too, but...  Wow.
In addition to seeing it interact with a shapely female form, would it be
practical to create a whole outfit to be worn by any living, moving model?
How long does it take to parse/render that?  Would it require significant
changes in your code?

Barron

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> > although it shouldn't fall onto the floor but onto a female body :-))
>
> Ha ha ha :) Now I understand why somebody asked me if it would be possible
> to use other objects different from spheres :)

:-) That was me too!
What about TWO spheres? ;-))

regards
SY

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Apache wrote:
> 
> I'll think about it!

Your voluntary compliance would be appreciated!

Thanx,

-- 
Ken Tyler

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It would require really significant ADDITIONS to my code. I'm working on
internal collission detection now. And the cloth will be able to interect
with more than one sphere and some other primitives like boxes and
cylinders. Those are relatively easy to implement. But first I should start
remembering my mathematical knowledge...

Apache

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