//Tiago Saad - 971717
//Bezier

#include "colors.inc"
#include "textures.inc"

background { color red 1 green 1 blue 1 }

camera{
	location<10, 10, 10 >
	look_at<5, 1, 4>
}

light_source{
	<10, 20, -10>
	color White
}

light_source{
	<0, -1, 9>
	color White
}


#declare a00 = < 0, 0, 0>;
#declare a01 = < 1, 0, 0>;
#declare a02 = < 2, 0, 0>;
#declare a03 = < 3, 0, 0>;

#declare a10 = < 0, 0, 1>;
#declare a11 = < 1, 6, 1>;
#declare a12 = < 2, 1.5, 1>;
#declare a13 = < 3, 0.5, 1>;

#declare a20 = < 0, 0, 2>;
#declare a21 = < 1, 6, 2>;
#declare a22 = < 2, 1.5, 2>;
#declare a23 = < 3, 0.5, 2>;

#declare a30 = < 0, 0, 3>;
#declare a31 = < 1, 4, 3>;
#declare a32 = < 2, 1, 3>;
#declare a33 = < 3, 0.5, 3>;


#declare b00 = < 3, 0, 0>;
#declare b01 = < 5, 0, 0>;
#declare b02 = < 7, 0, 0>;
#declare b03 = < 9, 0, 0>;

#declare b10 = < 3, 0.5, 1>;
#declare b11 = < 5, -1, 1>;
#declare b12 = < 7, 3, 1>;
#declare b13 = < 9, 0, 1>;

#declare b20 = < 3, .5, 2>;
#declare b21 = < 5, -1, 2>;
#declare b22 = < 7, 3, 2>;
#declare b23 = < 9, .5, 2>;

#declare b30 = < 3, 0.5, 3>;
#declare b31 = < 5, -1.5, 3>;
#declare b32 = < 7, 2, 3>;
#declare b33 = < 9, 0, 3>;


#declare BigMalha =
bicubic_patch{
	type 0
	flatness 0.1
	u_steps 4
	v_steps 4
	a00, a01, a02, a03,
	a10, a11, a12, a13,
	a20, a21, a22, a23,
	a30, a31, a32, a33
	pigment {color rgb<1, 0, 0>}
	finish{phong 1 reflection .5}
}


#declare SmallMalha =
bicubic_patch{
	type 0
	flatness 0.1
	u_steps 4
	v_steps 4
	b00, b01, b02, b03,
	b10, b11, b12, b13,
	b20, b21, b22, b23,
	b30, b31, b32, b33
	pigment {color rgb<0, 0, 1>}
	finish{phong 1 reflection .5}
}


object { BigMalha }
object { SmallMalha }


object { BigMalha
	scale < 1, 1,-1>
}

object { SmallMalha
	scale < 1, 1, -1>
}

sphere{a00, 0.1 pigment{color rgb<0,1,0>}}
sphere{a01, 0.1 pigment{color rgb<0,1,0>}}
sphere{a02, 0.1 pigment{color rgb<0,1,0>}}
sphere{a03, 0.1 pigment{color rgb<0,1,0>}}
sphere{a10, 0.1 pigment{color rgb<0,1,0>}}
sphere{a11, 0.1 pigment{color rgb<0,1,0>}}
sphere{a12, 0.1 pigment{color rgb<0,1,0>}}
sphere{a13, 0.1 pigment{color rgb<0,1,0>}}
sphere{a20, 0.1 pigment{color rgb<0,1,0>}}
sphere{a21, 0.1 pigment{color rgb<0,1,0>}}
sphere{a22, 0.1 pigment{color rgb<0,1,0>}}
sphere{a23, 0.1 pigment{color rgb<0,1,0>}}
sphere{a30, 0.1 pigment{color rgb<0,1,0>}}
sphere{a31, 0.1 pigment{color rgb<0,1,0>}}
sphere{a32, 0.1 pigment{color rgb<0,1,0>}}
sphere{a33, 0.1 pigment{color rgb<0,1,0>}}

sphere{b00, 0.1 pigment{color rgb<0,1,0>}}
sphere{b01, 0.1 pigment{color rgb<0,1,0>}}
sphere{b02, 0.1 pigment{color rgb<0,1,0>}}
sphere{b03, 0.1 pigment{color rgb<0,1,0>}}
sphere{b10, 0.1 pigment{color rgb<0,1,0>}}
sphere{b11, 0.1 pigment{color rgb<0,1,0>}}
sphere{b12, 0.1 pigment{color rgb<0,1,0>}}
sphere{b13, 0.1 pigment{color rgb<0,1,0>}}
sphere{b20, 0.1 pigment{color rgb<0,1,0>}}
sphere{b21, 0.1 pigment{color rgb<0,1,0>}}
sphere{b22, 0.1 pigment{color rgb<0,1,0>}}
sphere{b23, 0.1 pigment{color rgb<0,1,0>}}
sphere{b30, 0.1 pigment{color rgb<0,1,0>}}
sphere{b31, 0.1 pigment{color rgb<0,1,0>}}
sphere{b32, 0.1 pigment{color rgb<0,1,0>}}
sphere{b33, 0.1 pigment{color rgb<0,1,0>}}


plane{
	y,
	-2
	pigment {checker color White color rgb<0.9, 0.9, 0.9>}
}