def getEyeToHeadTransform(self, eEye):
        """
        Returns the transform from eye space to the head space. Eye space is the per-eye flavor of head
        space that provides stereo disparity. Instead of Model * View * Projection the sequence is Model * View * Eye^-1 * Projection. 
        Normally View and Eye^-1 will be multiplied together and treated as View in your application.
        """

        fn = self.function_table.getEyeToHeadTransform
        result = fn(eEye)
        return result
Returns the transform from eye space to the head space. Eye space is the per-eye flavor of head
        space that provides stereo disparity. Instead of Model * View * Projection the sequence is Model * View * Eye^-1 * Projection. 
        Normally View and Eye^-1 will be multiplied together and treated as View in your application.