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Author Topic: Difference between 2D, 3D and 4D.... Peter John Anthony. C Film Handler Posts: 55 From: India Registered: Jun 2004 posted 10-27-2005 01:29 PM                     Dear scholars, Can you please update me knowledge by stating the difference between 2D, 3D and 4D….....  |  IP: Logged Joseph L. Kleiman Master Film Handler Posts: 380 From: Sacramento, CA Registered: Apr 2005 posted 10-27-2005 01:35 PM                     The simple explanation: 2D is a traditional two dimensional film, like what you'd find in your typical cinema. 3D is three dimensional, meaning that there is a Z access extending both beyond and in front of the screen. 3D utilizes anaglyph (i.e. red/blue), polarized, or shutterglasses to achieve the three-dimensional effect. 4D is an attraction industry term used to imply a 3D film combined with in-theater physical effects, such as lighting, moving seats, mist, etc.  |  IP: Logged Mark Lensenmayer Phenomenal Film Handler Posts: 1605 From: Upper Arlington, OH Registered: Sep 1999 posted 10-27-2005 01:42 PM                     In a 2-dimensional image, such as a traditional motion picture or photograph, information is presented in two dimensions, horizontal and vertical. Although the brain does add some depth to the image, all you see is horizontal and vertical information. In mathematics, it can be called an x-y image. In a 3-dimensional image, the forward and backward information is presented. This is information coming toward or away from the viewer. This is the z-axis in mathematics. To perceive this, each eye must receive a separate image, often accomplished with polarization or anaglyph (red-blue [or green[) images. Once passing 3-dimensions, you get into some weird theoretical stuff. It is difficult to imagine anything more than 3 dimensions. We understand left-right, up-down and in-out, but nothing in our experience allows us to understand a fourth demension. A few films were produced using something that was advertised as a 4-D film. These played some of the amusement parks, such as Busch Gardens Williamsburg (Aside: If you are ever there and you like the entertainment, thank my brother!) These showed a 3-D film with added effects, such as a live actor in a balcony or water sprayed at the audience. Fun, but you wouldn't see this in a traditional theatre. That's a start...I'll leave others to fill in details or make corrections.  |  IP: Logged Randy Stankey Film God Posts: 6539 From: Erie, Pennsylvania Registered: Jun 99 posted 10-27-2005 02:58 PM                     It's the same as the difference between "Marketing" and "Public Relations".  |  IP: Logged Alan Gouger Jedi Master Film Handler Posts: 501 From: Bradenton, FL, USA Registered: Jul 2000 posted 10-27-2005 10:36 PM                        If its anything like VD you dont want to catch 4D. Far more painfull then 2D  |  IP: Logged Michael Cunningham Expert Film Handler Posts: 186 From: Anchorage, AK Registered: Nov 1999 posted 10-29-2005 11:00 AM                     Nothing to do with film presentations, but technically the 4th dimension is Time. Two objects cannot occupy the same point in three-dimensional space AT THE SAME TIME. But at different times, no problem. You see it used in mathematics to describe the poition of an object traveling under the influence of multiple forces or a constant force applied exponentially such as Gravity. In other words, how quickly an object is falling depends on how LONG it has already been falling.  |  IP: Logged

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