#version 3.7;

// --- Global Settings ---
global_settings {
    assumed_gamma 1.0 // Recommended for 3.7+ to ensure consistent lighting
    max_trace_level 5 // Depth of ray reflections
}

// --- Camera ---
camera {
    location <0, 4, -5>    // Position: x, y, z (Back and up)
    look_at <0, 0.5, 0>    // Pointing at: x, y, z
    right x*image_width/image_height // Correct aspect ratio
}

// --- Light Source ---
light_source {
    <10, 10, -10>          // Position of the light
    color rgb <1, 1, 1>    // White light
}

// --- Background ---
background { color rgb <0.2, 0.3, 0.4> }

#declare Radius = .05;
#declare Min = -30;
#declare Max = 30;

// --- Ground Plane ---
difference {
	plane {
	    y, 0                   // Surface normal y, distance from origin 0
        }

	#for (Rot, 0, 2)
	union {
	#for (Shift, Min, Max)
	cylinder {
		< Min, 0, Shift>, < Max, 0, Shift>, Radius
	}
	#end
	rotate < 0, Rot*60, 0 >
}
	#end

	#for (Rot, 0, 2)
	union {
	#for (Shift, Min, Max)
	cylinder {
		< Min, 0, Shift/sqrt(3)>, < Max, 0, Shift/sqrt(3)>, Radius
	}
	#end
	rotate < 0, 30+Rot*60, 0 >
}
	#end


    pigment { color rgb <0.7, 0.7, 0.7> } // Gray color
    finish { ambient 0.2 diffuse 0.8 }
}

union {
sphere {
	< 0, 0, 0 >, Radius
}
sphere {
	< 2/sqrt(3), 0, 0>, Radius
}
sphere {
	< 1/sqrt(3), 0, 1>, Radius
}
cylinder {
	< 0, 0, 0 >, < 2/sqrt(3), 0, 0>, Radius
}
cylinder {
	< 1/sqrt(3), 0, 1 >, < 2/sqrt(3), 0, 0>, Radius
}
cylinder {
	< 1/sqrt(3), 0, 1 >, < 0, 0, 0>, Radius
}
cylinder {
	< 0, 0, 0 >, < 0, 2, 0>, Radius
}
cylinder {
	< 1/sqrt(3), 0, 1 >, < 1/sqrt(3), 2, 1>, Radius
}
cylinder {
	< 2/sqrt(3), 0, 0 >, < 2/sqrt(3), 2, 0>, Radius
}
sphere {
	< 0, 2, 0 >, Radius
}
sphere {
	< 2/sqrt(3), 2, 0>, Radius
}
sphere {
	< 1/sqrt(3), 2, 1>, Radius
}
sphere {
	< 1/sqrt(3), 2+sqrt(2)/2, 1/3>, Radius
}
cylinder {
	<0, 2, 0 >, < 1/sqrt(3), 2+sqrt(2)/2, 1/3>, Radius
}
cylinder {
	<2/sqrt(3), 2, 0 >, < 1/sqrt(3), 2+sqrt(2)/2, 1/3>, Radius
}
cylinder {
	<1/sqrt(3), 2, 1 >, < 1/sqrt(3), 2+sqrt(2)/2, 1/3>, Radius
}
cylinder {
	< 0, 2, 0 >, < 2/sqrt(3), 2, 0>, Radius
}
cylinder {
	< 1/sqrt(3), 2, 1 >, < 2/sqrt(3), 2, 0>, Radius
}
cylinder {
	< 1/sqrt(3), 2, 1 >, < 0, 2, 0>, Radius
}

    pigment { color rgb <1, 0.2, 0.2> } // Red color
   finish {
      specular 0.6       // Shiny highlight
     reflection 0.2     // Reflective surface
    }
}

// --- 3D Object (Sphere) ---
//sphere {
 //   <0, 0.5, 0>, 0.5       // Center <x,y,z>, Radius
  //  pigment { color rgb <1, 0.2, 0.2> } // Red color
   // finish {
    //    specular 0.6       // Shiny highlight
     //   reflection 0.2     // Reflective surface
//    }
//}