// Example scene file using focal blur (thin-lens camera).
// This file does use some physically impossible camera settings, but it allows
// a good demonstration of focal blur. 
// 
// With the aa_depth at 128, this scene takes 4110 seconds(68.5 minutes) to
// render at 400x400 on my K6-2 400mhz.  


#include "materials.inc"
#include "cameras.inc"

define camera c : 
extends pas_35mm 
{
  translate < 0, 4, -24>
  look_at   <-3, 0, -8>
  aperture 0.0002 // Impossible aperture, but it allows a very narrow depth of
                  // field at a distance without the distortion caused by
                  // wide-angle lenses.  
  focal_distance 10 // Focus at something 10 units (meters) away.

    attribute_list()
}

define light l
{
  translate	<1,20,-6>
  color		CWhite
}

plane
{
  translate	<0, -1.5, 0>
  normal	<0, 1, 0>
  material : extends MChecker
  {
    color : class PatternChecker
    {
      color	CBlue
      base_color  CYellow
      size        2.5
    }
    specular    0
    ambient CGrey
  }
}

define sphere b
{
  radius 1
  material : extends MPlastic
  {
    color	CRed
  }
}

object : extends b { translate <-4.000000,0.000000,-20.000000> }
object : extends b { translate <-3.450000,0.294118,-18.000000> }
object : extends b { translate <-2.900000,0.588235,-16.000000> }
object : extends b { translate <-2.350000,0.882353,-14.000000> }
object : extends b { translate <-1.800000,1.176471,-12.000000> }
object : extends b { translate <-1.250000,1.470588,-10.000000> }
object : extends b { translate <-0.700000,1.764706,-8.000000> }
object : extends b { translate <-0.150000,2.058824,-6.000000> }
object : extends b { translate <0.400000,2.352941,-4.000000> }
object : extends b { translate <0.950000,2.647059,-2.000000> }
object : extends b { translate <1.500000,2.941176,0.000000> }
object : extends b { translate <2.050000,3.235294,2.000000> }
object : extends b { translate <2.600000,3.529412,4.000000> }
object : extends b { translate <3.150000,3.823529,6.000000> }
object : extends b { translate <3.700000,4.117647,8.000000> }
object : extends b { translate <4.250000,4.411765,10.000000> }
object : extends b { translate <4.800000,4.705882,12.000000> }
object : extends b { translate <5.350000,5.000000,14.000000> }
object : extends b { translate <5.900000,5.294118,16.000000> }
object : extends b { translate <6.450000,5.588235,18.000000> }

// Place the light source.
object : extends l { }

scene
{
  camera	c
  width		400
  height	400
  background	CSummerSky
  output
  {
    type        "png"
    name	"blur.png"
  }
  renderer : class Raytracer 
  {
    depth 3
    //    aa_depth 128 // Lower this if you want to see results quickly.
    aa_depth 4
    sampling "stochastic"
  }
}