Mailinglist Archive: opensuse-es (1073 mails)

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Re: [opensuse-es] Re: [OT] Feliz Año Nuevo y pelis en 3D
  • From: "Carlos E. R." <robin.listas@xxxxxxxxxxxxxx>
  • Date: Thu, 7 Jan 2010 20:27:04 +0100 (CET)
  • Message-id: <alpine.LSU.2.00.1001072024111.32579@xxxxxxxxxxxxxxxx>
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El 2010-01-07 a las 19:59 +0100, miguel gmail escribió:

<http://en.wikipedia.org/wiki/Real_D_3D>

(Hay una advertencia de que el texto parece publicitario y sospechoso)

Te parece sospechoso? Nosé, no termino de pillar el tono, aunque
entiendo el contenido :-?

No lo se, a mi no, es lo que dice la advertencia de la wikipedia.


Technology

RealD 3D cinema technology uses circularly polarized light to produce
stereoscopic images. Circular polarization is preferable to linear
polarization because viewers are able to tilt their head and look about the
theater naturally with no loss of 3D perception whereas linear polarization
requires viewers to keep their head within a certain degree of tilt for
effective 3D perception; otherwise they may see double or darkened
images.[6]

The projector alternately projects the right-eye frame and left-eye frame
144 times per second, and circularly polarizes these frames, clockwise for
the right eye and counterclockwise for the left eye. A push-pull
electro-optical modulator called a ZScreen is placed immediately in front of
the projector lens to switch polarization. The audience wears recyclable
circularly polarized glasses to make sure each eye sees only "its own"
picture, even if the head is tilted. In RealD Cinema, each frame is
projected three times to reduce flicker, a system called triple flash. The
source video is usually only (2x)24 frames per second (which can result in a
subtle ghosting and stuttering on horizontal camera movements). A silver
screen is used to keep the light polarized and to reflect back as much light
as possible to counter polarization losses. The result is a 3D picture that
seems to extend behind and in front of the screen itself.[7]

O sea, que es una pantalla especial, al menos en el hecho de que
refleje más luz que una blanca. Me sigo preguntando si el hecho de que
sea plateada no influirá en el hecho de que la onda salga con la
poloarización adecuada... Tengo que investigarlo un poco.

Es una pantalla especial para que no destruya la polarización. Tengo que mirarme lo de polarización circular, no me acuerdo de eso.


Por cierto, lo que decíamos del argumento plano de Avatar: Yo decía
que era un Bailando con Lobos. Otros han encontrado ciertas
similitudes con Pocahontas (que no he visto)

http://9gag.com/photo/16103_full.jpg

¡Je! Curioso. Si, es posible...

- -- Saludos
Carlos E. R.
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