The 3D film market has grown quite a bit in the past few years, and what was once a rare specialty is now commonly seen in many theaters. Though the concept of 3D films has been around since the 1950's, it was not until very recently that technology has truly caught up with the imagination of film makers and producers who try to create a visually immersing world for their audiences. Thanks to special equipment and film making techniques, directors and producers can make their dream for a 3D film into reality and create a totally three dimensional experience for their audiences.
The key concept behind creating a 3D film is recording the images the same way your eyes see them, using information collected from both the left and right eye to create one image; this is called stereoscopic vision. Two side by side lenses are used in cameras when filming a 3D movie in order to capture images similar to the way your eyes do. When a movie is developed totally using computers, such as Avatar, the 3D effect is achieved by adapting the animation process to incorporate stereoscopic vision. A 3D film is actually projected on two projectors at the same time; each one sends the film recorded by one of the two dual camera lenses.
Most people are familiar with the first 3D glasses that you had to wear to see a 3D film; one side was red, one side was blue. These glasses work because the two images fused to create a stereoscopic film were sent through a red light filter and a blue light filter, which can combine when you wear the 3D glasses. The limitations caused by this system moved film makers to seek out better technology.
Today's 3D movies use polarized light, which is made of light waves that vibrate on one plane. When producing a 3D film, two projectors are still needed, but the two images are projected different; one is polarized horizontally, the other vertically.
Your 3D glasses prevent one kind of light wave from entering each eye so that your left eye sees only horizontal waves and your right only sees the vertical ones. Without this technology, 3D movies would not be the same; filtering light waves gives you the illusion of depth that makes a 3D film pop off the screen and come alive. - 40724
The key concept behind creating a 3D film is recording the images the same way your eyes see them, using information collected from both the left and right eye to create one image; this is called stereoscopic vision. Two side by side lenses are used in cameras when filming a 3D movie in order to capture images similar to the way your eyes do. When a movie is developed totally using computers, such as Avatar, the 3D effect is achieved by adapting the animation process to incorporate stereoscopic vision. A 3D film is actually projected on two projectors at the same time; each one sends the film recorded by one of the two dual camera lenses.
Most people are familiar with the first 3D glasses that you had to wear to see a 3D film; one side was red, one side was blue. These glasses work because the two images fused to create a stereoscopic film were sent through a red light filter and a blue light filter, which can combine when you wear the 3D glasses. The limitations caused by this system moved film makers to seek out better technology.
Today's 3D movies use polarized light, which is made of light waves that vibrate on one plane. When producing a 3D film, two projectors are still needed, but the two images are projected different; one is polarized horizontally, the other vertically.
Your 3D glasses prevent one kind of light wave from entering each eye so that your left eye sees only horizontal waves and your right only sees the vertical ones. Without this technology, 3D movies would not be the same; filtering light waves gives you the illusion of depth that makes a 3D film pop off the screen and come alive. - 40724
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