3-D, 3D, or 3d may refer to:

Science, technology, and mathematics

Relating to three-dimensionality

Three-dimensional space Three-dimensional space (also: 3D space, 3-space or, rarely, tri-dimensional space) is a geometric setting in which three values (called ''parameters'') are required to determine the position of an element (i.e., point). This is the informa ...

3D computer graphics 3D computer graphics, or “3D graphics,” sometimes called CGI, 3D-CGI or three-dimensional computer graphics are graphics that use a three-dimensional representation of geometric data (often Cartesian) that is stored in the computer for th ...

, computer graphics that use a three-dimensional representation of geometric data **

3D film 3D films are motion pictures made to give an illusion of three-dimensional solidity, usually with the help of special glasses worn by viewers. They have existed in some form since 1915, but had been largely relegated to a niche in the motion pic ...

, a motion picture that gives the illusion of three-dimensional perception **

3D modeling In 3D computer graphics, 3D modeling is the process of developing a mathematical coordinate-based representation of any surface of an object (inanimate or living) in three dimensions via specialized software by manipulating edges, vertices, a ...

, developing a representation of any three-dimensional surface or object **

3D printing 3D printing or additive manufacturing is the construction of a three-dimensional object from a CAD model or a digital 3D model. It can be done in a variety of processes in which material is deposited, joined or solidified under computer co ...

, making a three-dimensional solid object of a shape from a digital model ** 3D display, a type of information display that conveys depth to the viewer **

3D television 3D television (3DTV) is television that conveys depth perception to the viewer by employing techniques such as stereoscopic display, multi-view display, 2D-plus-depth, or any other form of 3D display. Most modern 3D television sets use an ...

, television that conveys depth perception to the viewer **

Stereoscopy Stereoscopy (also called stereoscopics, or stereo imaging) is a technique for creating or enhancing the illusion of depth in an image by means of stereopsis for binocular vision. The word ''stereoscopy'' derives . Any stereoscopic image i ...

, any technique capable of recording three-dimensional visual information or creating the illusion of depth in an image

Other uses in science and technology or commercial products

3D projection A 3D projection (or graphical projection) is a design technique used to display a three-dimensional (3D) object on a two-dimensional (2D) surface. These projections rely on visual perspective and aspect analysis to project a complex object fo ...

3D rendering 3D rendering is the 3D computer graphics process of converting 3D models into 2D images on a computer. 3D renders may include photorealistic effects or non-photorealistic styles. Rendering methods Rendering is the final process of creati ...

3D scanning 3D scanning is the process of analyzing a real-world object or environment to collect data on its shape and possibly its appearance (e.g. color). The collected data can then be used to construct digital 3D modelling, 3D models. A 3D scanner can ...

, making a digital representation of three-dimensional objects * 3D video game (disambiguation) *

3-D Secure 3-D Secure is a protocol designed to be an additional security layer for online credit and debit card transactions. The name refers to the "three domains" which interact using the protocol: the merchant/acquirer domain, the issuer domain, and the ...

, a secure protocol for online credit and debit card transactions * Biela's Comet, a lost periodic comet discovered in 1826 * British Rail Class 207, sometimes known as 3Ds

Music

Artists

Robert Del Naja Robert Del Naja (; born 21 January 1965), also known as 3D, is a British artist, musician, singer and songwriter. He emerged as a graffiti artist and member of the Bristol collective the Wild Bunch, and later as a founding member and sole con ...

(born 1965), also known as 3D, English artist and musician in the band Massive Attack * The 3Ds, a rock band

Albums

* ''3D'' (Go West album), 2010 * ''3D'' (The Three Degrees album), 1979 * ''3-D'' (I See Stars album), the debut album from the band I See Stars * ''3-D'' (SPC ECO album) * ''3-D'' (TLC album), 2002 * ''3-D'' (Wrathchild America album)

Songs

*"3-D", a song by Cheap Trick from their 1983 album '' Next Position Please''

Other uses

3D Aerobatics 3D Aerobatics or 3D flying is a form of flying using flying aircraft to perform specific aerial maneuvers. They are usually performed when the aircraft had been intentionally placed in a stalled position. Introduction In its most basic sense, ...

, a form of flying using flying aircraft to perform specific aerial maneuvers *

3D (Long Island bus) Suffolk County Transit operates a number of bus routes in Suffolk County, New York, United States; a few in the town of Huntington are operated by Huntington Area Rapid Transit. The Villages of Patchogue and Port Jefferson, also have had their own ...

, bus service in New York State *

3D Test of Antisemitism The "three Ds" or the "3D test" of antisemitism is a set of criteria which was formulated by Israeli politician Natan Sharansky in order to distinguish legitimate criticism of Israel from antisemitism. The three Ds stand for delegitimization, de ...

, put forth by Israeli politician and human rights activist Natan Sharansky *

Middle finger The middle finger, long finger, second finger, third finger, toll finger or tall man is the third digit of the human hand, located between the index finger and the ring finger. It is typically the longest digit. In anatomy, it is also calle ...

, the third digit (abbreviated 3D) of the hand * Three-dimensional chess * Threepence (disambiguation), a coin used in several countries, abbreviated as '3d' * The 3D ("Dudley Death Drop"), a professional wrestling double-team maneuver