// ==== POV-Ray Includes ====
#include "colors.inc"	 
#include "transforms.inc"
#include "car.inc"

camera {
  location  <0.0, 5.0, -10.0>
  look_at   <0.0, 1.0,  0.0>
}   

light_source {  <5.0, 20.0, -15.0>  2*White }
  
// The ground. 
plane {
  y, 
  -0.1 
  pigment { Blue }
}

// Define the spline.      
#declare MySpline =
  spline {
    linear_spline 
    0, <5,0,0>
     .1,  <3,0,-4>
    .2,  <0,0,-4>
    .3,  <-3,0,-4>
    .4, <-5,0,0>
    .5,  <-3,0,4>
    .6,  <0,0,4>
     .8, <3,0,4>
     1., <5,0,0> 
  }
      
// Draw squashed spheres along spline path.   
#declare myrad = 1;
sphere_sweep {
  linear_spline
  9
   //<3,0,4>, myrad
   <5,0,0>, myrad
   <3,0,-4>  , myrad
    <0,0,-4>  , myrad
    <-3,0,-4>  , myrad
    <-5,0,0> , myrad
    <-3,0,4>, myrad
    <0,0,4>, myrad
    <3,0,4>, myrad
    <5,0,0>, myrad 
   // <3,0,-4>  , myrad
   pigment { color Yellow }  
   scale <1,.2,1>
}
   

// have car follow along the spline
object {
  car
  scale .4
  rotate -90*y
  translate .4*y
  Spline_Trans(MySpline, clock, y, 0.1, 0.01)
}