Forgot that there's a macro missing from what I posted:


#macro m_KeplerPosition_trans(i, Omega, w, epsilon, a, P, tau, tol, t_clock)
   transform
   {
     translate a * m_orbitalPosition
     (
       epsilon,
       2 * pi * (t_clock-tau)/P,
       2 * pi * tol/P
     )
     rotate <0, -w, 0>
     rotate <-i, -Omega, 0>
   }
#end


Just add it to "fbruder_kepler.inc", or to the scene file if you want.


-- 
http://isometricland.com

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