Example 2

...

For an animation with POV-Ray you'll need only 2 files:
1. a POV-Ray scene file (extension: .pov), which uses the clock value and
2. a POV-Ray amimation initialisation file (extension: .ini), which defines the clock value
and repeatedly calls the scene file with changed clock values.

A POV-Ray scene file:

"animation_a_.pov"

#version 3.7;
global_settings {  assumed_gamma 1.0 }
//---------------------------------------
 //...
 // a basic background scene
 //...
//----------------------------------- end
#declare Nr = clock ;

cylinder{ <0,0.01,0>,<0,2.01*Nr,0>, 0.30
          texture {
             pigment { color rgb<1,1,1> }
             finish  { phong 0.5 reflection 0.00 }
                  } // end of texture
          translate<0.4,0,-0.3>
        } // end of cylinder ---------------------

An animation ini file:
Note: The ini file must be in the same directory
   as the POV-Ray scene description file!
   Use ";" instead of "//"
   for comments in POV-Ray ini files!

"animation_a_.ini"

; POV-Ray animation ini file
Antialias=On
Antialias_Threshold=0.3
Antialias_Depth=3

Input_File_Name=animation_a_.pov

Initial_Frame=1
Final_Frame=10
Initial_Clock=0
Final_Clock=1

Cyclic_Animation=on
Pause_when_Done=off