code to set RotateBy

		If tempnode = Null Then tempnode = MainSceneManager.createSceneNode() 'Tempnode is global to this type- most objects here will be, to prevent repeated creation of local objects.
		tempnode.setOrientation(node.getworldOrientation())  		'set tempnodes orientation to that of the "parent" node.
		tempnode.getOrientation().ToRotationMatrix(startrot)   	        'insert its rotation matrix into StartRot.
		tempnode.rotate(yaw, pitch, roll, 1, space)      	        'Rotate it.	
		Local tempquat:TQuaternion = tempnode.getOrientation()          'Lets normalise it. stops wierd scaling/stretching
		tempquat.normalise()                                            'continue normalise.
		tempnode.setOrientation(tempquat)                               'set the normalised rotation.
		tempnode.getOrientation().ToRotationMatrix(endrot)        	'Store its new rotation matrix into EndRot
		rotateby = endrot.sub(startrot)   				'RotateBy matrix now contains the difference between StartRot and Endrot. It (SHOULD BE?) world space, even if Space is Local. THIS IS THE ONLY THING I THINK COULD BE INVOLVED???
		




OK this code is now execuded for ALL nodes in the list. Main node or not.
	thisnode.getworldOrientation().ToRotationMatrix(thisnoderotmatrix)      'get the nodes rotation matrix and put it in thisnoderotmatrix.
	Local newrot:TMatrix3 = thisnoderotmatrix.add(rotateby)       		'multiply thisnoderotmatrix with the matrix we want to ratate with.
	neworientation.FromRotationMatrix(newrot)      				'convert this matrix to a quat.
	neworientation.normalise()      					'Normalise the orientation quat to prevent floating issues that end up breaking the objects matrix.
	thisnode.setOrientation(neworientation)      				'Set the orientation.