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From maal-irtc20030115@anthrosphinx.de:
This sure is a classic in more than one way: not only reminds it anyone who does raytracing of one's own first tries, but it's also sort of the "classic" RT picture (reflecting sphere on infinite plane) :-)
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From Martin.Magnusson.7121@student.uu.se:
I like the strob-like effect of the red and green checkers when the camera follows the balls. Things you mght want to do: make the camera move smoother. In stead of just halting it, try a function of the clock. Something like "#if (clock < pi/2) location <sin(clock), 0, 0> #end" to make it start smoothly.
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From maarten_hofman@hotmail.com:
It is fast enough, but you obviously should invest more time in it... Either by increasing the camera work or by increasing the complexity of the scene. Also, there seems to be a glitch in the last frame.

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From steven.place@lucidapple.com:
The theme is there, but nothing else to support it. Lets face it, sphere's going down a flat plane is not that intresting. Now if it was curved, with in's and out's, then i could see this, but its overall pretty boreing.

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From glenn@mccarters.net:
Well, you got the basics in place.  Many directions you could take this
further.

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From clem@dhol.org:
Simplistic and little story, but a good sensation of speed.  Would have been improved if the spheres changed relative position a few times.