The color map should be more like this:

pigment
{
	gradient (lookFrom - lookAt)
	color_map
	{
		[0/6 srgb <1,0,0,>]
		[1/6 srgb <1,1,0,>]
		[2/6 srgb <0,1,0,>]
		[3/6 srgb <0,1,1,>]
		[4/6 srgb <0,0,1,>]
		[5/6 srgb <1,0,1,>]
		[6/6 srgb <1,0,0,>]
	}
	scale vlength(lookFrom - lookAt) * 2
	translate lookFrom * -1
}

Post a reply to this message