Belajar Autocad 3d Dasar Pdf

Three dimensional (3D) is something that has width, height, and depth. Our physical world is three dimensional, and we are able to perceive 3D because of the depth perception in our eyes. In relation to computers, 3D describes an
image
that provides the illusion of depth or varying distances. This is commonly used in films,
graphics, computer games and
virtual reality.

3D computer graphics

3D computer graphics generate and display 3D objects in a two-dimensional (2D) space, such as a
display screen. Whereas
pixels
in a 2D graphic have the properties of position, color, and brightness, 3D pixels add a depth property that indicates where the point lies on an imaginary Z-axis. When many pixels are combined, each with its own depth value, the result is a 3D surface, called a
texture. In addition to textures, 3D graphics also supports multiple objects interacting with one another. For example, a solid object may partially hide an object behind it.

3D films

3D films are motion pictures made to give an illusion of 3D depth, typically with the help of special glasses worn by the viewer. The first 3D movie came out in 1922 and has evolved to what it is today. To achieve 3D video,
stereoscopic vision
is used, meaning that two separate images are shown simultaneously, one to each eye. Closer objects appear more separated than distant ones. There are different types of 3D glasses that work in tandem with projection in pesanan for the movie to become 3D. A few examples include:

  • Red/Cyan glasses
    (Anaglyphic processing): The original 3D system that is now largely out of use.
  • Polarized penyaring glasses
    (Polarized light system): The most common system for cinemas today.
  • LCD shutter glasses
    (Active shutter system): Newest, battery powered glasses that will most likely be the standard for 3D
    television.

3D printing

3D printing, also known as additive manufacturing, is the process of making a 3D, solid object from a
digital file. Printing can be done with plastic, resin, and even ferum. To print a 3D object, a digital contoh must be created using
Computer Aided Design
(CAD). The design is then imported to 3D printing
software
where the teoretis is sliced into layers to be read by the 3D printer. The printer then produces layers of material one on top of the other. Industries that use 3D printing include education, prototyping and manufacturing, medicine, construction, and art industries.

Source: https://www.webopedia.com/definitions/3d/

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