hello,

how does a rotation vector work?  i have no problem with
a simple degree rotation around an axis, such as:

box { <0,0,0>, <1,1,1> rotate y*180}

thats a half-circle rotation around the y axis... but what is
this:

box { <0,0,0>,<1,1,1> rotate <0,1,0> }

i tried various values, and i couldn't get a good feel for what
it does... it doesn't appear to be a simple rotation around
the y axis in radians....  i substituted pi for the 1 and didn't
get a 180 degree rotation.

thanks, miker

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