Stephen <mcavoys_at@aoldotcom> wrote:
> You know that you've been raytracing too long when... :-P

....you create a brilliant "new" concept for a render, only to discover in your
own archives that you'd already thought of that and rendered it rather artfully
15 years ago?

Cheers
-------------------------------------------------
www.McGregorFineArt.com

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Le_Forgeron wrote:
> I wonder which apparatus it would take to even just try to make that in
> reality. with enough fans, wind tunnels, laser control, and a fast
> enough mega-cluster to even just get a single fraction of second to have
> that...
>
I was musing about something similar a week or two ago.  Perhaps a colorless,
stringy, almost slimy, viscoelastic polymer with the same IOR as soapy water
could be gently woven into a loose mesh...

Bonus points if this material is non-toxic (preferably a food product), and only
metastable so that no trace of it remains after the bubble bursts.

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"Robert McGregor" <rob### [at] mcgregorfineartcom> wrote:
> Actually, I'm rendering this into a simple 30-second bubbles-falling movie

And here's the final cut; I'm especially happy with the foreground bubbles that
almost bump into the camera lens...

https://vimeo.com/38987891

-------------------------------------------------
www.McGregorFineArt.com

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On 22/03/2012 8:06 PM, Robert McGregor wrote:
> "Robert McGregor"<rob### [at] mcgregorfineartcom>  wrote:
>> Actually, I'm rendering this into a simple 30-second bubbles-falling movie
>
> And here's the final cut; I'm especially happy with the foreground bubbles that
> almost bump into the camera lens...
>
>

Gorgeous and nice choice of music too.


-- 
Regards
     Stephen

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Oh yes! I love it.

I am not sure, sometimes in soap bubbles you can see the iridescence 
swirl round (especially before bursting iirc). Have you included that in 
your animation? I seem to see some swirling...

Thomas

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Thomas de Groot <tho### [at] degrootorg> wrote:
> Oh yes! I love it.
>
> I am not sure, sometimes in soap bubbles you can see the iridescence
> swirl round (especially before bursting iirc). Have you included that in
> your animation? I seem to see some swirling...

Thanks, Thomas :)

I didn't animate the irid but I did animate the blob components such that each
sphere slowly rotates on its local axes by some random amount before being
translated into position each frame; so the irid pattern does change on each -
some much faster than others.

The whole scene is basically just this:

//------------------------------------------------------------------------------
// Bubbles
//------------------------------------------------------------------------------

#declare M_Bubble = material {
   texture {
      pigment { srgbt 0.99 }
      finish {
         diffuse 0
         reflection { 0.05, 1 fresnel on }
         specular 0.99 roughness 0.001
         conserve_energy
         irid { 0.3
            thickness 0.25
            turbulence 1.2
         }
      }
   }
   interior { ior 1.001 }
}

#declare MAX = 512;

#declare aScale1  = array[MAX];
#declare aScale2  = array[MAX];

#declare aRotate1 = array[MAX];
#declare aRotate2 = array[MAX];
#declare aRotate3 = array[MAX];

#declare aTrans1  = array[MAX];
#declare aTrans2  = array[MAX];

#local n=0;
#while (n < MAX)
   #declare aScale1[n]  = RRand(0.9, 1.1, R);
   #declare aScale2[n]  = RRand(0.4, 0.7, R);

   #declare aRotate1[n] = <rand(R)*360,rand(R)*360,rand(R)*360>;
   #declare aRotate2[n] = <rand(R)*360,rand(R)*360,rand(R)*360>;
   #declare aRotate3[n] = RRand(30,90,R);

   #declare aTrans1[n]  = <RRand(-20,20,R),RRand(-10,10,R),RRand(-20,20,R)>;
   #declare aTrans2[n]  = RRand(-15,-20,R);

   #local n=n+1;
#end

blob {
   threshold 0.2
   #local n=0;
   #while (n < MAX)
      sphere { 0, 1, 1
         scale x*aScale1[n]
         scale aScale2[n]
         rotate aRotate1[n]
         rotate aRotate2[n]*clock
         translate aTrans1[n]

         translate y*12
         rotate y*aRotate3[n]*clock
         translate <0, aTrans2[n]*clock, 10>
      }
      #local n=n+1;
   #end
   material { M_Bubble }
}

Cheers
-------------------------------------------------
www.McGregorFineArt.com

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Stephen <mcavoys_at@aoldotcom> wrote:
> Gorgeous and nice choice of music too.

Thanks Stephen, these bubbles have been a lot of fun.

Cheers
-------------------------------------------------
www.McGregorFineArt.com

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Le_Forgeron <jgr### [at] freefr> wrote:
> Le 20/03/2012 22:56, Robert McGregor nous fit lire :
> > I just had to try a Lucy bubble....
> >
>
> Holy....
>
> That's a very wonderful picture
>
> I wonder which apparatus it would take to even just try to make that in
> reality. with enough fans, wind tunnels, laser control, and a fast
> enough mega-cluster to even just get a single fraction of second to have
> that...
>
>
> Next silly step (???): have a movie in which bubble Lucy get morphed
> from or to a normal sphere.That would be a silly special effect!

Okay, I couldn't help myself, I simply /had/ to do it. So, I traced all of
Lucy's verts (stored in a massive array) outward onto a sphere. As the animation
progresses each vert morphs back into original position giving a Bubble->Lucy
transformation.

The video is here: https://vimeo.com/47055835

That was fun :)
-------------------------------------------------
www.McGregorFineArt.com

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Attachments:
Download 'lucybubblevideo.jpg' (177 KB)

Preview of image 'lucybubblevideo.jpg'

On 8-8-2012 22:56, Robert McGregor wrote:
>
> Okay, I couldn't help myself, I simply /had/ to do it. So, I traced all of
> Lucy's verts (stored in a massive array) outward onto a sphere. As the animation
> progresses each vert morphs back into original position giving a Bubble->Lucy
> transformation.
>
> The video is here: https://vimeo.com/47055835
>
> That was fun :)

That was great! Good work indeed. Make the video a bit longer at the end 
though; it is cut off too abruptly ;-)

Thomas

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"Robert McGregor" <rob### [at] mcgregorfineartcom> wrote:
> Okay, I couldn't help myself, I simply /had/ to do it.

Very nice. Agree with Thomas, she needs to drift a little longer to be properly
appreciated!

Bill

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