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

Science, technology, and mathematics

* A

three-dimensional space In geometry, a three-dimensional space (3D space, 3-space or, rarely, tri-dimensional space) is a mathematical space in which three values ('' coordinates'') are required to determine the position of a point. Most commonly, it is the three- ...

in mathematics

Relating to three-dimensionality

3D computer graphics 3D computer graphics, sometimes called Computer-generated imagery, CGI, 3D-CGI or three-dimensional Computer-generated imagery, computer graphics, are graphics that use a three-dimensional representation of geometric data (often Cartesian coor ...

, computer graphics that use a three-dimensional representation of geometric data * 3D display, a type of information display that conveys depth to the viewer *

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. 3D films were prominently featured in the 1950s in American cinema and later experienced a worldwide r ...

, 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 Computer representation of surfaces, representation of a surface of an object (inanimate or living) in Three-dimensional space, three dimensions vi ...

, 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 ...

, making a three-dimensional solid object of a shape from a digital model *

3D television 3D television (3DTV) is television that conveys depth perception to the viewer by employing techniques such as stereoscopy, stereoscopic display, free viewpoint television, multi-view display, or any other form of 3D display. Most modern 3D te ...

, television that conveys depth perception to the viewer *

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

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 three dimensional data of its shape and possibly its appearance (e.g. color). The collected data can then be used to construct digital 3D models. A 3D scanner ...

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

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

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

Three-dimensional space In geometry, a three-dimensional space (3D space, 3-space or, rarely, tri-dimensional space) is a mathematical space in which three values ('' coordinates'') are required to determine the position of a point. Most commonly, it is the three- ...

Other uses in science and technology

* 3-D Secure, a secure protocol for online credit and debit card transactions * Biela's Comet, a lost periodic comet discovered in 1826, also known as 3D * 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 (sound system), the Wild Bunch, and later as ...

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

"Weird Al" Yankovic in 3-D ''"Weird Al" Yankovic in 3-D'' (often referred to simply as ''In 3-D'') is the second studio album by the American parody musician "Weird Al" Yankovic, released on February 28, 1984, by Rock 'n Roll Records. The album was one of many produced b ...

, 1984, sometimes simply referred to as 3-D

Songs

* "3D" (song), a 2023 song by Jungkook featuring Jack Harlow *"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 Robi ...

Other uses

3D Aerobatics 3D Aerobatics or 3D flying is a form of flying using flying aircraft to perform specific Aerobatic maneuver, aerial maneuvers. They are usually performed when the aircraft had been intentionally placed in a stalled position for purposes of entertai ...

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

3D (Long Island bus) Suffolk County Transit operates numerous 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 ...

, bus service in New York State *

3D Test of Antisemitism The three Ds of antisemitism or the 3D test of antisemitism is a set of criteria formulated in 2003 by Israeli human rights advocate and politician Natan Sharansky in order to distinguish legitimate criticism of Israel from antisemitism. The ...

, 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, typically located between the index finger and the ring finger. It is typically the longest digit. In anatomy, it is al ...

, the third digit (abbreviated 3D) of the hand * Three D Radio, a community radio station in Adelaide, Australia *

Three-dimensional chess Three-dimensional chess (or 3‑D chess) is any chess variant that replaces the two-dimensional chessboard, board with a three-dimensional array of cells between which the pieces can move. In practice, this is usually achieved by boards represent ...

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