#version HMCCS155FALL2002

/*
 * boundingbox test.  this case will be fast because the bounding boxes
 * will usefully determine which rays potentially intersect the 
 * tetrahedron, and not test the ones that don't.
 */

#background	0.0  0.0  0.0
#ambient	0.7  0.7  0.7

#camera
	-50.0	2.0	0.0	// position
	1.0	0.0	0.0	// direction
	0.0	1.0	0.0	// up
	30.0			// heightAngle


// A simple tetrahedron
#macro_begin -n tetrahedron --

	#triangle -n tetrahedronBot -m plainGray --
		0.0	0.0	0.0	// vertex 1
		-1.73	0.0	1.0	// vertex 2
		-1.73	0.0	-1.0	// vertex 3

	#triangle -n tetrahedronFront -m plainGray --
		-1.15	1.63	0.0	// vertex 4
		-1.73	0.0	-1.0	// vertex 3
		-1.73	0.0	1.0	// vertex 2

	#triangle -n tetrahedronRight -m plainGray --
		0.0	0.0	0.0	// vertex 1
		-1.15	1.63	0.0	// vertex 4
		-1.73	0.0	1.0	// vertex 2

	#triangle -n tetrahedronLeft -m plainGray --
		0.0	0.0	0.0	// vertex 1
		-1.73	0.0	-1.0	// vertex 3
		-1.15	1.63	0.0	// vertex 4

#macro_end


// A tetrahedron of tetrahedrons
#macro_begin -n tetrahedronGroup1 --

	#group_begin -n tG1v1 --
		1.0    0.0    0.0    0.0   
		0.0    1.0    0.0    0.0  
		0.0    0.0    1.0    0.0 
		0.0    0.0    0.0    1.0  

		#macro_instance tetrahedron

	#group_end


	#group_begin -n tG1v2 --
		1.0    0.0    0.0   -1.73  
		0.0    1.0    0.0    0.0  
		0.0    0.0    1.0    1.0 
		0.0    0.0    0.0    1.0  

		#macro_instance tetrahedron

	#group_end

	#group_begin -n tG1v3 --
		1.0    0.0    0.0   -1.73  
		0.0    1.0    0.0    0.0  
		0.0    0.0    1.0   -1.0 
		0.0    0.0    0.0    1.0  

		#macro_instance tetrahedron

	#group_end

	#group_begin -n tG1v4 --
		1.0    0.0    0.0   -1.15  
		0.0    1.0    0.0    1.63 
		0.0    0.0    1.0    0.0 
		0.0    0.0    0.0    1.0  

		#macro_instance tetrahedron

	#group_end

#macro_end


// A tetrahedron of tetrahedrons of tetrahedrons
#macro_begin -n tetrahedronGroup2 --

	#group_begin -n tG2v1 --
		1.0    0.0    0.0    0.0   
		0.0    1.0    0.0    0.0  
		0.0    0.0    1.0    0.0 
		0.0    0.0    0.0    1.0  

		#macro_instance tetrahedronGroup1

	#group_end


	#group_begin -n tG2v2 --
		1.0    0.0    0.0   -1.73  
		0.0    1.0    0.0    0.0  
		0.0    0.0    1.0    1.0 
		0.0    0.0    0.0    1.0  

		#macro_instance tetrahedronGroup1

	#group_end

	#group_begin -n tG2v3 --
		1.0    0.0    0.0   -1.73  
		0.0    1.0    0.0    0.0  
		0.0    0.0    1.0   -1.0 
		0.0    0.0    0.0    1.0  

		#macro_instance tetrahedronGroup1

	#group_end

	#group_begin -n tG2v4 --
		1.0    0.0    0.0   -1.15  
		0.0    1.0    0.0    1.63 
		0.0    0.0    1.0    0.0 
		0.0    0.0    0.0    1.0  

		#macro_instance tetrahedronGroup1

	#group_end

#macro_end



// A tetrahedron of tetrahedrons of tetrahedrons of tetrahedrons
#macro_begin -n tetrahedronGroup3 --

	#group_begin -n tG3v1 --
		1.0    0.0    0.0    0.0   
		0.0    1.0    0.0    0.0  
		0.0    0.0    1.0    0.0 
		0.0    0.0    0.0    1.0  

		#macro_instance tetrahedronGroup2

	#group_end


	#group_begin -n tG3v2 --
		1.0    0.0    0.0   -1.73  
		0.0    1.0    0.0    0.0  
		0.0    0.0    1.0    1.0 
		0.0    0.0    0.0    1.0  

		#macro_instance tetrahedronGroup2

	#group_end

	#group_begin -n tG3v3 --
		1.0    0.0    0.0   -1.73  
		0.0    1.0    0.0    0.0  
		0.0    0.0    1.0   -1.0 
		0.0    0.0    0.0    1.0  

		#macro_instance tetrahedronGroup2

	#group_end

	#group_begin -n tG3v4 --
		1.0    0.0    0.0   -1.15  
		0.0    1.0    0.0    1.63 
		0.0    0.0    1.0    0.0 
		0.0    0.0    0.0    1.0  

		#macro_instance tetrahedronGroup2

	#group_end

#macro_end


#material -n plainGray --
	0.1	0.1	0.1	// ambient
	0.6	0.6	0.6	// diffuse
	0.1	0.1	0.1	// specular
	0.0	0.0	0.0	// emissive
	0.9	0.0	0.0	// kspec ktrans refind


#macro_instance tetrahedronGroup3


#rayfile_end