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Single icicle with air bubbles, rendered in 4.5min.
I do not know what to think about this prototype yet.
I am happy with the irregular shapes formed by the bubbles, but not  
completely satisfied with the distribution.
Real icicles are formed in layers, which I could do by (I think) a method  
similar to the way I test if the air bubbles are "inside" the icicle  
object.
Right now I construct a sphere based approximation of the icicle and test  
against that to determine if the air bubbles are "inside" the real icicle  
object. I suppose if I executed a recursive orbiting trace() of that  
object, placing air bubbles as well as perhaps *slightly* varying the IOR  
of each layer, I might be able to emulate something like what you see at  
the following link:  
http://www.physics.utoronto.ca/~smorris/edl/icicleripples/icicleripples.html
Any thoughts?
Branching as seen in the following link is next:  
http://farm4.static.flickr.com/3475/3238212338_9245029bf5.jpg?v=0
-- 
Ian McDonald
Lean Agile .NET 4.0/MVC
Senior Application Architect,
Developer and Security Analyst
 
 Post a reply to this message 
 
Attachments: 
Download 'blobtest2011_7.png' (45 KB)
 
  
Preview of image 'blobtest2011_7.png'
   
   
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"[GDS|Entropy]" <gdsHYentropyAThotmailDTcom> wrote:
> Single icicle with air bubbles, rendered in 4.5min.
> I do not know what to think about this prototype yet.
> I am happy with the irregular shapes formed by the bubbles, but not
> completely satisfied with the distribution.
I agree the distribution is not right, but the bubbles do add a great deal of
interest to the icicle. You are certainly on the right track.
Regards,
Dave Blandston
 
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I hit the 1 million blob component limit using the air bubbles...so  
unfortunately I will not be including that in my first alpha release. :(
On the other hand, they are useless to even have unless you are looking  
fairly closely at an icicle...so for general use this will not be an  
issue. I will re include that functionality in alpha 2.
Alpha 1 will be released as soon as I clean up the code and polish a few  
things, probably hours away now.
On Sun, 26 Dec 2010 19:10:14 -0500, Dave Blandston <nomail@nomail> wrote:
> "[GDS|Entropy]" <gdsHYentropyAThotmailDTcom> wrote:
>> Single icicle with air bubbles, rendered in 4.5min.
>> I do not know what to think about this prototype yet.
>> I am happy with the irregular shapes formed by the bubbles, but not
>> completely satisfied with the distribution.
>
> I agree the distribution is not right, but the bubbles do add a great  
> deal of
> interest to the icicle. You are certainly on the right track.
>
> Regards,
> Dave Blandston
>
>
-- 
Ian McDonald
Lean Agile .NET 4.0/MVC
Senior Application Architect,
Developer and Security Analyst
 
 Post a reply to this message 
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> I hit the 1 million blob component limit using the air bubbles...so
> unfortunately I will not be including that in my first alpha release. :(
> On the other hand, they are useless to even have unless you are looking
> fairly closely at an icicle...so for general use this will not be an
> issue. I will re include that functionality in alpha 2.
>
> Alpha 1 will be released as soon as I clean up the code and polish a few
> things, probably hours away now.
>
>
It may be a viable, if not totaly satisfying, compromise to difference 
the air bubbles using a second blob, used uniquely for that purpose.
One blob for the icicle and a second, or 2 or 3 in extreme cases, for 
the bubbles.
Normaly, those don't realy contribute to the overall shape.
Alain
 
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On Mon, 27 Dec 2010 18:48:26 -0500, Alain <aze### [at] qwerty org> wrote:
>> I hit the 1 million blob component limit using the air bubbles...so
>> unfortunately I will not be including that in my first alpha release.
 :(
>> On the other hand, they are useless to even have unless you are looki
ng
>> fairly closely at an icicle...so for general use this will not be an
>> issue. I will re include that functionality in alpha 2.
>>
>> Alpha 1 will be released as soon as I clean up the code and polish a 
few
>> things, probably hours away now.
>>
>>
>
> It may be a viable, if not totaly satisfying, compromise to difference
  
> the air bubbles using a second blob, used uniquely for that purpose.
> One blob for the icicle and a second, or 2 or 3 in extreme cases, for 
 
> the bubbles.
>
> Normaly, those don't realy contribute to the overall shape.
>
>
> Alain
I postponed the alpha release for a bit to integrate duplicate avoidance
,  
nearly done with that now, so maybe that will help that as well as impro
ve  
general performance.
I suppose a separate blob would be an option, thank you. :) I will explo
re  
this issue more once I get the alpha out.
-- 
Ian McDonald
Lean Agile .NET 4.0/MVC
Senior Application Architect,
Developer and Security Analyst
 
 Post a reply to this message 
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