This is the sample input data used to produce the SMOOTH output below.

0.00 8.80 0.00    6.39 6.38 0.06    4.48 6.38 4.56
6.39 6.38 0.06    8.99 0.00 0.08    6.30 0.00 6.42
6.39 6.38 0.06    6.30 0.00 6.42    4.48 6.38 4.56
8.99 0.00 0.08    6.39 -6.38 0.06    4.48 -6.38 4.56
8.99 0.00 0.08    4.48 -6.38 4.56    6.30 0.00 6.42

--- "raw" output -------------------------------------------------------

 0.0000  8.8000  0.0000 -10.8900 -28.8696 -4.6222
 6.3900  6.3800  0.0600 -26.6831 -19.0500 -11.3234
 4.4800  6.3800  4.5600 -19.8000 -20.3061 -8.4040

 6.3900  6.3800  0.0600 -26.6831 -19.0500 -11.3234
 8.9900  0.0000  0.0800 -36.5361  3.9142 -15.5034
 6.3000  0.0000  6.4200 -36.5361 -3.9127 -15.5034

 6.3900  6.3800  0.0600 -26.6831 -19.0500 -11.3234
 6.3000  0.0000  6.4200 -36.5361 -3.9127 -15.5034
 4.4800  6.3800  4.5600 -19.8000 -20.3061 -8.4040

 8.9900  0.0000  0.0800 -36.5361  3.9142 -15.5034
 6.3900 -6.3800  0.0600 -28.7100 11.7382 -12.1858
 4.4800 -6.3800  4.5600 -34.5796 14.1402 -14.6740

 8.9900  0.0000  0.0800 -36.5361  3.9142 -15.5034
 4.4800 -6.3800  4.5600 -34.5796 14.1402 -14.6740
 6.3000  0.0000  6.4200 -36.5361 -3.9127 -15.5034
 
--- POV Ray v1.0 -------------------------------------------------------

//
// Persistance of Vision v1.0 Data File
//
// Created by SMOOTH v2.1 - Surface Normal Smoothing Program
// Copyright (c) 1993 - Jeff Burton / Master Tech Enterprises
//

smooth_triangle { 
<  0.0000  8.8000  0.0000 > < -10.8900 -28.8696 -4.6222 >
<  6.3900  6.3800  0.0600 > < -26.6831 -19.0500 -11.3234 >
<  4.4800  6.3800  4.5600 > < -19.8000 -20.3061 -8.4040 >
 }

smooth_triangle { 
<  6.3900  6.3800  0.0600 > < -26.6831 -19.0500 -11.3234 >
<  8.9900  0.0000  0.0800 > < -36.5361  3.9142 -15.5034 >
<  6.3000  0.0000  6.4200 > < -36.5361 -3.9127 -15.5034 >
 }

smooth_triangle { 
<  6.3900  6.3800  0.0600 > < -26.6831 -19.0500 -11.3234 >
<  6.3000  0.0000  6.4200 > < -36.5361 -3.9127 -15.5034 >
<  4.4800  6.3800  4.5600 > < -19.8000 -20.3061 -8.4040 >
 }

smooth_triangle { 
<  8.9900  0.0000  0.0800 > < -36.5361  3.9142 -15.5034 >
<  6.3900 -6.3800  0.0600 > < -28.7100 11.7382 -12.1858 >
<  4.4800 -6.3800  4.5600 > < -34.5796 14.1402 -14.6740 >
 }

smooth_triangle { 
<  8.9900  0.0000  0.0800 > < -36.5361  3.9142 -15.5034 >
<  4.4800 -6.3800  4.5600 > < -34.5796 14.1402 -14.6740 >
<  6.3000  0.0000  6.4200 > < -36.5361 -3.9127 -15.5034 >
 }

--- POV Ray v2.0 -------------------------------------------------------

//
// Persistance of Vision v2.0 Data File
//
// Created by SMOOTH v2.1 - Surface Normal Smoothing Program
// Copyright (c) 1993 - Jeff Burton / Master Tech Enterprises
//

smooth_triangle { 
<  0.0000  8.8000  0.0000 >, < -10.8900 -28.8696 -4.6222 >,
<  6.3900  6.3800  0.0600 >, < -26.6831 -19.0500 -11.3234 >,
<  4.4800  6.3800  4.5600 >, < -19.8000 -20.3061 -8.4040 >
 }

smooth_triangle { 
<  6.3900  6.3800  0.0600 >, < -26.6831 -19.0500 -11.3234 >,
<  8.9900  0.0000  0.0800 >, < -36.5361  3.9142 -15.5034 >,
<  6.3000  0.0000  6.4200 >, < -36.5361 -3.9127 -15.5034 >
 }

smooth_triangle { 
<  6.3900  6.3800  0.0600 >, < -26.6831 -19.0500 -11.3234 >,
<  6.3000  0.0000  6.4200 >, < -36.5361 -3.9127 -15.5034 >,
<  4.4800  6.3800  4.5600 >, < -19.8000 -20.3061 -8.4040 >
 }

smooth_triangle { 
<  8.9900  0.0000  0.0800 >, < -36.5361  3.9142 -15.5034 >,
<  6.3900 -6.3800  0.0600 >, < -28.7100 11.7382 -12.1858 >,
<  4.4800 -6.3800  4.5600 >, < -34.5796 14.1402 -14.6740 >
 }

smooth_triangle { 
<  8.9900  0.0000  0.0800 >, < -36.5361  3.9142 -15.5034 >,
<  4.4800 -6.3800  4.5600 >, < -34.5796 14.1402 -14.6740 >,
<  6.3000  0.0000  6.4200 >, < -36.5361 -3.9127 -15.5034 >
 }