Basics of 3D Scanners
The newest revolution in the video game and movie industries is three dimensional technology, or 3d for short. Some of the films and games that have been developed have taken full advantage of this new technology and have used these advances to bring movies and games to life in ways never seen before.
At the heart of the 3d revolution are 3d scanners. A scanner enables developers to digitize and scan in just about anything from the real world. Whether it something as simple as a skateboard or as complex as a motor cycle a 3d scanner can transform real world objects into computer models. This technology works on several core principles.
Firstly the scanner will be used to create an object digitally from samples taken of the real world surface of the object. These points can then be saved on the computer and have digital images mapped over them to create a very realistic looking object. A 3d scanner works very similarly to a high end camera in that they have a certain area that they can receive information. Unlike a camera the scanner will only capture information on the surface of the object and not the color. This information will include the distance from the 3d scanner and can be put together to derive the overall shape of the object.
There are two main types of scanners – contact and non contact. A contact scanner needs to touch the subject in order to get the spatial information, while a non contact scanner will work almost exactly like a camera and be able to ascertain the information from a distance. The generally will use some kind of light and measure its reflection to determine the shape of an object. By compiling all the information together a model of the object can be created on the computer. Once created texture images can be mapped and the object can be manipulated in many different ways.
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