future features:

transformations:

	create a lookout table for the cos and sin of a defined set of angles to optimise stage rotations.

	function createSinCosLookupTable(numberOfDegrees) {
		var sinCosLookup = [],
			angleIncrement = 2 * Math.PI / numberOfDegrees,
			i;
		for (i = numberOfDegrees - 1; i >= 0; i -= 1) {
			var angle = i * angleIncrement;
			sinCosLookup[i] = ({
				sin: Math.sin(angle),
				cos: Math.cos(angle)
			});				
		}
		return sinCosLookup;		
	}
		
perspective:

	add option to simulate aerial perspective.