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 t ...

, computer graphics that use a three-dimensional representation of geometric data ** 3D film, a motion picture that gives the illusion of three-dimensional perception ** 3D modeling, 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 3D display is a display device capable of conveying depth to the viewer. Many 3D displays are stereoscopic displays, which produce a basic 3D effect by means of stereopsis, but can cause eye strain and visual fatigue. Newer 3D displays such ...

, a type of information display that conveys depth to the viewer ** 3D television, television that conveys depth perception to the viewer ** Stereoscopy, 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, making a digital representation of three-dimensional objects *

3D video game (disambiguation) A 3D video game (three-dimensional video game) may refer to: *a video game featuring 3D game graphics, which are computed in three directional dimensions *a stereoscopic video game with a stereoscopic depth effect See also * List of stereoscop ...

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 Biela's Comet or Comet Biela (official designation: 3D/Biela) was a periodic Jupiter-family comet first recorded in 1772 by Montaigne and Messier and finally identified as periodic in 1826 by Wilhelm von Biela. It was subsequently observed to ...

, a lost periodic comet discovered in 1826 *

British Rail Class 207 The British Rail Class 207 ( 3D) diesel-electric multiple units were built by BR at Eastleigh in 1962. The fleet had a lifespan of 42 years. The Southern Region class 201 to 207 DEMUs are nicknamed 'Thumpers' due to the noise their engine units ...

, 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 cons ...

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

The 3Ds The 3Ds were a New Zealand noise pop band based from Dunedin, together from 1988 to 1997. They recorded three albums and several EPs, the best known of which is ''The Venus Trail'' (1993). They achieved commercial and critical success worldwid ...

, 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 ''Next Position Please'' is the seventh studio album by American rock band Cheap Trick, produced by Todd Rundgren and released in 1983. The title track was originally demoed for the band's 1979 album ''Dream Police'', which had lead singer Robin Z ...

Other uses

* 3D Aerobatics, a form of flying using flying aircraft to perform specific aerial maneuvers * 3D (Long Island bus), bus service in New York State * 3D Test of Antisemitism, 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 Three-dimensional chess (or 3‑D chess) is any chess variant that replaces the two-dimensional board with a three-dimensional array of cells between which the pieces can move. In practical play, this is usually achieved by boards representing ...

Threepence (disambiguation) Threepence may refer to: * Threepence (Irish coin), a pre-decimalisation coin * Threepence (Australian), a pre-decimalisation coin * Threepence (British coin) The British threepence piece, usually simply known as a threepence, ''thruppence ...

, a coin used in several countries, abbreviated as '3d' * The 3D ("Dudley Death Drop"), a professional wrestling double-team maneuver