"Alain" <noe### [at] on ca> wrote in message news:3f9a7e1b@news.povray.org...
> - The red wall is bouncy, the blue wall is not.
I suppose that accounts for what to my eyes seems as though the balls are
bouncing slightly *through* the blue wall before rebounding? Like the wall
is actually a little further away than it seems. Or maybe my brain expects
the balls to bounce harder off the blue wall than they actually are. Hmm.
Nifty animation -- both as a test, and as an inadvertent optical illusion!
Mark
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