On 3/23/2011 1:29 PM, Jim Holsenback wrote:
> On 03/23/2011 05:05 PM, Samuel Benge wrote:
>>
>> Comments and/or questions, welcome as always!
>>
>
> so what's used for the water itself ... a media function of some sort
> ... the textured fog? and why the reciprocal for the bubbles. I was
> thinking about an underwater scene, that mandel goodie I was playing
> around with a while back looked like it would make neat coral (up close)
> but I got stalled on exactly these issues.

The water is nothing. There's no water, no container for the bubbles... 
The media-like effect is entirely due to the textured fog, so there's no 
real volumetric present. The reciprocal for the bubbles was given as an 
attempt to make them behave is if they had the ior or air inside water. 
I don't know if it's an accurate way to do it though, I just knew I 
should make a transform based on the ior of both water and air, and a 
reciprocal seemed like the best way to do that.

Right now I'm trying to make a more physically-based air bubble effect 
using blobs subtracted by blobs from one point set. It looks promising 
so far, but I need more reference material...

I look forward to seeing your scene, should you feel like posting 
another version eventually. I failed to comment on it last time, but it 
was looking pretty good!

Sam

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