> It would be sad step back for many POVers including me :-(

  I personally don't like the current spline syntax at all. Forced time values
are a bother and make writing splines a lot more tedious. The most common
usage of splines (at least in my case) is with evenly-distributed time values,
which have to be calculated automatically. This means that the points have
to be put in an array and then the spline calculated automatically from it.
  But the several spline include files out there (eg. the Colefax's one)
already do this, and they support a lot more features than pov3.5's splines
do (eg. approximating evenly spaced points in the spline).

  I personally find the spline include files so much more useful than I'll
probably never be using the internal ones.
  It won't be a step back for me.

-- 
#macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
[1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
-1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -

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