So, this is the final version. The macros can now take either a single
position, or even an array (in case you want to cover larger distances in a
single frame and need the precision) to calculate the new matrix. In this
scene, I simply traced the heightfield and used the heightfield's normals to
tell the balls on which surface they are rolling. You'll notice the
checkered sphere to roll sideways on the turn to the left, as it's rolling
along the edge of a hill.

The animation is non-looping, there's too much involved to get it looping
when not rolling the ball back and forth on a smooth surface...

The macros will be released soon, once I create an example file which shows
how to use the System.

Regards,
Tim

-- 
"Tim Nikias v2.0"
Homepage: <http://www.nolights.de>

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