// Persistence of Vision Ray Tracer Scene Description File
// File: surcoat2holo.pov
// Vers: 3.6
// Desc: Uses SurCoat to create a data-file for CGH-Maker, 
// in XML format. I'm fairly sure that CGH uses a left handed system, given what I've seen.
// Date: 2/13/05
// Auth: Sam Bleckley
//

#version 3.6;

#include "colors.inc"

global_settings {
  assumed_gamma 1.0
}

// ----------------------------------------

camera {
  location  <0.0, 0, -4.0>
  look_at   <0.0, 0.0,  0.0>
}


// ----------------------------------------


#declare holoObject = 
sphere {
  2*z, .5
}

//Surcoat
// Surcoat-Macros for POV-Ray 3.6.1
//  Tim Nikias Wenclawiak
//  a.k.a. "Tim Nikias v2.0"
//
//Homepage:
// www.nolights.de
//Email:
// timnikias@gmx.net
//Default values

#include "surcoat.inc"
//Topview is not declared as this avoids the pretesting-subroutine. Declaring
// it as a white pigment will start the subroutine, but with the same effect:
// all cells have to be sampled.
//#declare Surcoat_Topview = pigment{rgb 1}
#declare Surcoat_Debug = on;
#declare Surcoat_Seed = 260981;

//The origin of the samples is a rectangle which matches the image-result of
// the Orthoview-macro. The actual unit-size of the object multiplied with
// the desired resolution will define the resolution of the grid layed on top
// of this rectangle. Per cell, the given amount of samples will be shot at
// the object.
#declare Surcoat_CellResolution = 8;
#declare Surcoat_CellSamples = 10;

//The coating is done along a certain direction.
#declare Surcoat_Sample_Direction = z;
//Samples of which the surface-normal deviates from the given shooting direction
// by more than the given angle (in degrees) will be dropped. 90 ensures that
// every surface up till perpendicularity will get coated.
#declare Surcoat_Sample_MaxDirectionDeviation = 90;
//This will switch off the DirectionDeviation-Check completely and every hit onto
// the object, no matter if top- or bottomside, will be saved.
#declare Surcoat_Sample_OverrideDirection = 0;

//For accuracy reasons, an offset can be defined for the sorting macro, as shooting
// trace()-rays exactly from a sample's position can yield different results (e.g.
// it might hit the exact same surface right away, or pass through and hit the next
// one, depending on transformations and internal representations, to circumvent this,
// the trace()-ray will be offset by the given amount along the normal).
#declare Surcoat_Sample_Offset = .0001;
        //Samples the object's surface with the given settings
Surcoat_CreateSamples(holoObject)
       //Saves unsorted samples
Surcoat_SaveSurface("holo.txt")
//Visualizes samples with spheres
union{
  Surcoat_Spheres("holo.txt",.025)
  pigment{rgb 1}
}
#fopen holo "holo.txt" read
#fopen holoxml "woonew.xml" write
 #write(holoxml, "<PointSourceArray>
 ")
#while (defined(holo))
#declare myPoint = <0, 0, 0>;
#declare myNorm = <0, 0, 0>;
    #read (holo,myPoint, myNorm)
    #write(holoxml, "<PointSource x=\"", myPoint.x, "\" y=\"", myPoint.y, "\" z=\"", myPoint.z "\" amp=\"1\" wavelength=\"670e-9\" phase=\"-1.25\"/>
    ")
  #end
 #write(holoxml, "</PointSourceArray>")