// This source file generates a realistic 3-D graphic image 
// Author:  Donald W. Hyatt 
// Email:   dhyatt@tjhsst.edu
// Web:     http://www.tjhsst.edu/~dhyatt/

// The following are some simple include files for predefined items
#include "colors.inc"
#include "shapes.inc"
#include "textures.inc"


// A. First Essential Feature: The CAMERA to take the picture
camera {
  location <3, 12, -17>  // Camera location: x,y,x coordinates in three-space
  look_at <0, 5, -2>     // Direction of view in three-space

}

// B. Second Essential Feature: The LIGHT SOURCE
light_source {
  <-50,50,-30>  // Location is behind the viewer, high, and to the left
  color rgb <1.5, 1.5, 1.5>  // This is a BRIGHT white light 
}

// C. Third Essential Feature - The OBJECTS in three-space

// Object #1 - A checkerboard floor or plane
plane {
  y, 0  // along the x-z plane (y is the normal vector)
  pigment { checker color Black  color White } // checkered pattern
  finish {
      ambient 0.2  // How much light is scattered from nearby objects
      diffuse 0.8  // How much light comes from the direct source
      }
  scale 2  // Enlarge the basic checker pattern by a factor of two
}


// Object #2 - A shiny red sphere
sphere {
  <1.0, 6.0, 3.7>, 5  // The <origin> of the sphere and it's radius
  pigment { 
      color rgbf <1, 0, 0, 0> // Red, Green, Blue and Filter (transparency)
      }
  finish {
      phong 0.8  // The shiny highlight
      reflection 0.8  // How much light bounces off the object
      }
}

// Objetct #3 - A moderatley shiny yellow box
box {
  <-1, 0, -3> <-5, 8, -7>  // Two corners of the box
  texture{
  pigment { 
      marble
      color_map {
          [0.0 color rgbf <1, 1, 0.2, 0.0>]
          [1.0 color rgbf <1, 1, 0.8, 0.0>]
         }
      turbulence 1.5 lambda 1.5 omega 0.75 octaves 8
      }
  normal {bumps 0.2 scale 0.2}
  finish {
      phong 0.8
      reflection 0.2
      ambient 0.15
      diffuse 0.75
      }
  }
}

// Object #4 - A transparent blue torus (A torus is defined about the origin)
torus {2.5, 0.8  // Major radius (basic size) and minor radius (cross section)
  pigment {color rgbf <0.2, 0.2, 1.0, 0.8>}// Strong blue and transparent
  finish {
      phong 1.0 	// Highlight
      reflection 0.5	// Shiny surface 
      refraction 1.2	// Properties of light passing through object
      ior 1.8		// Index of refraction
      }
  translate <-1.2, 5.5, -6.8>  // Move the torus away from the origin
}

// Object #5 - A cone with a portion removed
difference{

  cone { < -9, 0, 2>, 4, // Center of base and radius
         <-9, 11, 2>, 0  // Center of top and radius
       }
  sphere {<-9.1, 8, 1.4>, 1.2}  // This sphere is removed from the cone
	
  pigment {color rgbf <0.0, 0.6, 0.0, 0.0>} // Dark green
  finish {
      phong 1.0
      reflection 0.2
     }
}

//Object #6 - A blob
blob {
  threshold 0.1  // Factor relating to how spheres merge
  component 1.0, 1.8, < 5, 5, -4>  // Sphere #1  strength, radius, and location
  component 1.0, 1.0, <6.5, 5.5, -3> // Smaller sphere #2
  component 1.0, 1.0, <6.5, 5.5, -5>  // Smaller sphere #3
  pigment {
      image_map{	   // Wrap an image around object instead of color
 	  gif "azalea3.gif"   // Targa file and name
	  map_type 0	   // Typr of wrapping 
	  interpolate 2    // Boundary type between colors
	  }
//      turbulence 0.7	   // Mess up pattern with turbulence
      scale 3		   // Enlarge covering image
	rotate <8,-3,0>
      }
  finish {
      phong 0.2		   // Give modest high light
      //reflection 0.1	   // Minor reflective properties
      }
}