fish-tank v1.1

Cool stuff I made this time is......bubbles! which is a circle with bouncing looking which have another circle with bouncing looking within it, which is moving a tiny bit in it.  (confusing right?)

Of course bubbles is transparent, have some whitish color but not completely white, floating upward with a speed decided by its size (bigger, faster. high reality, oh yeah).

Saying about the whitish color, my first choice was a bluey blue...very blue color. Then I show this to my mom, she thought it's better to be whitish rather than a non-light color (whatever is the word "non-light" exists), so I change it as she said, the result is perfect; and the bubbles at first is LARGE, my mom (here she comes...) thought instead of this gigantic horrible bubble, a smaller bubble would be pretty, so again, I decrease the size of it, and it is brilliant!

The wonderful bubble by My Mom.