// A serpentine coil

// Deformed camera
camera{
	normal{ripples 1.4}
}

// A pigmented plane with a color map
#local h=<.3,.2,.1>;
plane{
	z,1 
	pigment{
		function {y*(y-z)-x*(x+y)}
		colour_map{
			[.08 rgb h]
			[.1 rgb h*4.6]
			[.12 rgb h*8]
			[.2 rgb h*2.1]
			[.28 rgb h]
			[0.3 rgb 0]
		}
	}
	finish{
		ambient .35
		brilliance 2
		diffuse .3
		specular.8
		reflection.1
	}
}