Translate the given Spanish text to English

Input: Consider Input: In this way, an optical tracker and the associated cameras are not necessary.

Output: De esta manera, se puede prescindir de un rastreador óptico y de las cámaras asociadas.


Input: Consider Input: Each panel is made from flexible fabric layers.

Output: Cada panel se hace de capas de tela flexible.


Input: Consider Input: The present invention relates to disposable cigarette lighters.


Output: La presente invencion se relaciona a encendedores de cigarros disponibles.