Cool Optical Effect

[Ali]

^^  DJ, that worked!  I got her to spin counter-clockwise, but then I couldn't get her to spin the other way again.  Then I figured out that if I scroll down so I can't see her, decide which way I want her to go, and then scroll up to see her, I can choose the direction.  Still can't get her to change in mid spin though. 

[Crow]

They don't work for me. The bubbles/balls are always moving away from the light and the female figure is always spinning clockwise. Tried everything nothing changes.

As you look at her bottom foot, just try to be aware of the fact that you can't actually see any depth. Your brain is telling you that at any given point her heel is behind her toe, or her toes are behind her heel, but that's not what you're actually seeing. When you follow her foot around, try to imagine the opposite of what your brain is telling you - when you think her toes are pointing towards you, try to imagine they're pointing away. That's what I did and I eventually got it.

Thanks that actually worked

[DeterminedJuliet]

Yaay! 

[Hector Valdez]

That was cool!

[bannedatheist]

The bubbles seem to be coming out because mid-to-upper RHS there's repeating definitely upward translations. The rest is just random enough to be tricksy.

The spinning lady just looks like she's spinning CCW to me -- can't see it the other way. I think as the silhouette changes over time, the linearity gives way to the 3D form, and that gives away intended direction of motion, Rodin-like.