Hello All,
Creating an animation of a sphere rolling along the xz plane is easy
if you do this...

object {sphere {<0,0,0>1
      
                 rotate <0, 0, -clock*360>
      translate <-pi, 1, 0>
      translate <2*pi*clock, 0, 0>}
        }

But how do you do it if the radius of the sphere is < or >1 ?
Any radius values less than 1 cause the sphere to look like it is
sliding and rolling, not truely rolling.

I'm sure this is an easy math problem, I just can't see it. Any ideas?

Thanks,
--Blane

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