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91-498: To assist regional geological mapping, more abundant and visualized expression forms are highly needs. Thus, the 3D terrain model is adopted as the carrier for the demands in many correlative fields. Based on the regular grid DEM (Digital Elevation Model) in DRGS, ROAM algorithm is applied to create a more dynamic model, which will give consideration to the importance of different features and select correspondence level of detail. The algorithm

182-495: A three-dimensional representation of geometric data (often Cartesian ) that is stored in the computer for the purposes of performing calculations and rendering digital images , usually 2D images but sometimes 3D images . The resulting images may be stored for viewing later (possibly as an animation ) or displayed in real time . 3-D computer graphics, contrary to what the name suggests, are most often displayed on two-dimensional displays. Unlike 3D film and similar techniques,

273-495: A 3D model is formed from points called vertices that define the shape and form polygons . A polygon is an area formed from at least three vertices (a triangle). A polygon of n points is an n-gon. The overall integrity of the model and its suitability to use in animation depend on the structure of the polygons. Before rendering into an image, objects must be laid out in a 3D scene . This defines spatial relationships between objects, including location and size . Animation refers to

364-406: A broad sense to describe "almost everything on computers that is not text or sound". Typically, the term computer graphics refers to several different things: Today, computer graphics is widespread. Such imagery is found in and on television, newspapers, weather reports, and in a variety of medical investigations and surgical procedures. A well-constructed graph can present complex statistics in

455-513: A critical and commercial success of nine-figure magnitude. The studio to invent the programmable shader would go on to have many animated hits, and its work on prerendered video animation is still considered an industry leader and research trail breaker. In video games, in 1992, Virtua Racing , running on the Sega Model 1 arcade system board , laid the foundations for fully 3D racing games and popularized real-time 3D polygonal graphics among

546-520: A discipline until the 1950s and the post- World War II period – during which time the discipline emerged from a combination of both pure university and laboratory academic research into more advanced computers and the United States military 's further development of technologies like radar , aviation , and rocketry developed during the war. New kinds of displays were needed to process the wealth of information resulting from such projects, leading to

637-463: A display scope image of a Disney cartoon character. Electronics pioneer Hewlett-Packard went public in 1957 after incorporating the decade prior, and established strong ties with Stanford University through its founders, who were alumni . This began the decades-long transformation of the southern San Francisco Bay Area into the world's leading computer technology hub – now known as Silicon Valley . The field of computer graphics developed with

728-423: A display scope. One of the first interactive video games to feature recognizable, interactive graphics – Tennis for Two – was created for an oscilloscope by William Higinbotham to entertain visitors in 1958 at Brookhaven National Laboratory and simulated a tennis match. In 1959, Douglas T. Ross , while working at MIT on transforming mathematic statements into computer generated 3D machine tool vectors, created

819-548: A feature-length motion picture using computer graphics – a goal he would achieve two decades later after his founding role in Pixar . In the same class, Fred Parke created an animation of his wife's face. The two animations were included in the 1976 feature film Futureworld . As the UU computer graphics laboratory was attracting people from all over, John Warnock was another of those early pioneers; he later founded Adobe Systems and created

910-515: A form that is easier to understand and interpret. In the media "such graphs are used to illustrate papers, reports, theses", and other presentation material. Many tools have been developed to visualize data. Computer-generated imagery can be categorized into several different types: two dimensional (2D), three dimensional (3D), and animated graphics. As technology has improved, 3D computer graphics have become more common, but 2D computer graphics are still widely used. Computer graphics has emerged as

1001-593: A great deal of founding research to the field and taught several students who would grow to found several of the industry's most important companies – namely Pixar , Silicon Graphics , and Adobe Systems . Tom Stockham led the image processing group at UU which worked closely with the computer graphics lab. One of these students was Edwin Catmull . Catmull had just come from The Boeing Company and had been working on his degree in physics. Growing up on Disney , Catmull loved animation yet quickly discovered that he did not have

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1092-447: A high-water mark for the field during the decade. The 1980s is also called the golden era of videogames ; millions-selling systems from Atari , Nintendo and Sega , among other companies, exposed computer graphics for the first time to a new, young, and impressionable audience – as did MS-DOS -based personal computers, Apple IIs , Macs , and Amigas , all of which also allowed users to program their own games if skilled enough. For

1183-405: A highly popular tool for computer graphics among graphic design studios and businesses. Modern computers, dating from the 1980s, often use graphical user interfaces (GUI) to present data and information with symbols, icons and pictures, rather than text. Graphics are one of the five key elements of multimedia technology. In the field of realistic rendering, Japan 's Osaka University developed

1274-475: A human face and a hand that had originally appeared in the 1971 experimental short A Computer Animated Hand , created by University of Utah students Edwin Catmull and Fred Parke . 3-D computer graphics software began appearing for home computers in the late 1970s. The earliest known example is 3D Art Graphics , a set of 3-D computer graphics effects, written by Kazumasa Mitazawa and released in June 1978 for

1365-406: A leading developer of graphics boards in this decade, creating a "duopoly" in the field which exists this day. CGI became ubiquitous in earnest during this era. Video games and CGI cinema had spread the reach of computer graphics to the mainstream by the late 1990s and continued to do so at an accelerated pace in the 2000s. CGI was also adopted en masse for television advertisements widely in

1456-417: A light pen, Sketchpad allowed one to draw simple shapes on the computer screen, save them and even recall them later. The light pen itself had a small photoelectric cell in its tip. This cell emitted an electronic pulse whenever it was placed in front of a computer screen and the screen's electron gun fired directly at it. By simply timing the electronic pulse with the current location of the electron gun, it

1547-420: A model of a car, one could change the size of the tires without affecting the rest of the car. It could stretch the body of car without deforming the tires. The phrase "computer graphics" has been credited to William Fetter , a graphic designer for Boeing in 1960. Fetter in turn attributed it to Verne Hudson, also at Boeing. In 1961 another student at MIT, Steve Russell , created another important title in

1638-407: A necessity for advanced work in the field, providing considerable complexity in manipulating pixels , vertices , and textures on a per-element basis, and countless possible effects. Their shader languages HLSL and GLSL are active fields of research and development. Physically based rendering or PBR, which implements many maps and performs advanced calculation to simulate real optic light flow,

1729-552: A revolution in the publishing world with his PostScript page description language. Adobe would go on later to create the industry standard photo editing software in Adobe Photoshop and a prominent movie industry special effects program in Adobe After Effects . James Clark was also there; he later founded Silicon Graphics , a maker of advanced rendering systems that would dominate the field of high-end graphics until

1820-565: A screen. It was the first consumer computer graphics product. David C. Evans was director of engineering at Bendix Corporation 's computer division from 1953 to 1962, after which he worked for the next five years as a visiting professor at Berkeley. There he continued his interest in computers and how they interfaced with people. In 1966, the University of Utah recruited Evans to form a computer science program, and computer graphics quickly became his primary interest. This new department would become

1911-458: A separate and very powerful chip is used in parallel processing with a CPU to optimize graphics. The decade also saw computer graphics applied to many additional professional markets, including location-based entertainment and education with the E&;S Digistar, vehicle design, vehicle simulation, and chemistry. The 1990s' highlight was the emergence of 3D modeling on a mass scale and an rise in

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2002-432: A specialized barrel shifter circuit made from discrete chips to help their Intel 8080 microprocessor animate their framebuffer graphics. The 1980s began to see the commercialization of computer graphics. As the home computer proliferated, a subject which had previously been an academics-only discipline was adopted by a much larger audience, and the number of computer graphics developers increased significantly. In

2093-433: A square for example, they do not have to worry about drawing four lines perfectly to form the edges of the box. One can simply specify that they want to draw a box, and then specify the location and size of the box. The software will then construct a perfect box, with the right dimensions and at the right location. Another example is that Sutherland's software modeled objects – not just a picture of objects. In other words, with

2184-400: A sub-field of computer science which studies methods for digitally synthesizing and manipulating visual content. Over the past decade, other specialized fields have been developed like information visualization , and scientific visualization more concerned with "the visualization of three dimensional phenomena (architectural, meteorological, medical, biological , etc.), where the emphasis

2275-463: A suitably high-end system may simulate photorealism to the untrained eye. Texture mapping has matured into a multistage process with many layers; generally, it is not uncommon to implement texture mapping, bump mapping or isosurfaces or normal mapping , lighting maps including specular highlights and reflection techniques, and shadow volumes into one rendering engine using shaders , which are maturing considerably. Shaders are now very nearly

2366-584: A wider audience in the video game industry . The Sega Model 2 in 1993 and Sega Model 3 in 1996 subsequently pushed the boundaries of commercial, real-time 3D graphics. Back on the PC, Wolfenstein 3D , Doom and Quake , three of the first massively popular 3D first-person shooter games, were released by id Software to critical and popular acclaim during this decade using a rendering engine innovated primarily by John Carmack . The Sony PlayStation , Sega Saturn , and Nintendo 64 , among other consoles, sold in

2457-456: Is a mathematical representation of any three-dimensional object; a model is not technically a graphic until it is displayed. A model can be displayed visually as a two-dimensional image through a process called 3-D rendering , or it can be used in non-graphical computer simulations and calculations. With 3-D printing , models are rendered into an actual 3-D physical representation of themselves, with some limitations as to how accurately

2548-426: Is a class of 3-D computer graphics software used to produce 3-D models. Individual programs of this class are called modeling applications or modelers. 3-D modeling starts by describing 3 display models : Drawing Points, Drawing Lines and Drawing triangles and other Polygonal patches. 3-D modelers allow users to create and alter models via their 3-D mesh . Users can add, subtract, stretch and otherwise change

2639-539: Is an active research area as well, along with advanced areas like ambient occlusion , subsurface scattering , Rayleigh scattering , photon mapping , ray-tracing and many others. Experiments into the processing power required to provide graphics in real time at ultra-high-resolution modes like 4K Ultra HD begun, though beyond reach of all but the highest-end hardware. In cinema, most animated movies are CGI now; many animated CGI films are made per year , but few, if any, attempt photorealism due to continuing fears of

2730-493: Is on realistic renderings of volumes, surfaces, illumination sources, and so forth, perhaps with a dynamic (time) component". The precursor sciences to the development of modern computer graphics were the advances in electrical engineering , electronics , and television that took place during the first half of the twentieth century. Screens could display art since the Lumiere brothers ' use of mattes to create special effects for

2821-1076: Is usually performed using 3-D computer graphics software or a 3-D graphics API . Altering the scene into a suitable form for rendering also involves 3-D projection , which displays a three-dimensional image in two dimensions. Although 3-D modeling and CAD software may perform 3-D rendering as well (e.g., Autodesk 3ds Max or Blender ), exclusive 3-D rendering software also exists (e.g., OTOY's Octane Rendering Engine , Maxon's Redshift) 3-D computer graphics software produces computer-generated imagery (CGI) through 3-D modeling and 3-D rendering or produces 3-D models for analytical, scientific and industrial purposes. There are many varieties of files supporting 3-D graphics, for example, Wavefront .obj files and .x DirectX files. Each file type generally tends to have its own unique data structure. Each file format can be accessed through their respective applications, such as DirectX files, and Quake . Alternatively, files can be accessed through third-party standalone programs, or via manual decompilation. 3-D modeling software

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2912-605: The Apple II . 3-D computer graphics production workflow falls into three basic phases: The model describes the process of forming the shape of an object. The two most common sources of 3D models are those that an artist or engineer originates on the computer with some kind of 3D modeling tool , and models scanned into a computer from real-world objects (Polygonal Modeling, Patch Modeling and NURBS Modeling are some popular tools used in 3D modeling). Models can also be produced procedurally or via physical simulation . Basically,

3003-488: The GPGPU technique to pass large amounts of data bidirectionally between a GPU and CPU was invented; speeding up analysis on many kinds of bioinformatics and molecular biology experiments. The technique has also been used for Bitcoin mining and has applications in computer vision . In the 2010s, CGI has been nearly ubiquitous in video, pre-rendered graphics are nearly scientifically photorealistic , and real-time graphics on

3094-573: The LINKS-1 Computer Graphics System , a supercomputer that used up to 257 Zilog Z8001 microprocessors , in 1982, for the purpose of rendering realistic 3D computer graphics . According to the Information Processing Society of Japan: "The core of 3D image rendering is calculating the luminance of each pixel making up a rendered surface from the given viewpoint, light source , and object position. The LINKS-1 system

3185-466: The arcades , advances were made in commercial, real-time 3D graphics. In 1988, the first dedicated real-time 3D graphics boards were introduced for arcades, with the Namco System 21 and Taito Air System. On the professional side, Evans & Sutherland and SGI developed 3D raster graphics hardware that directly influenced the later single-chip graphics processing unit (GPU), a technology where

3276-647: The uncanny valley . Most are 3D cartoons . In videogames, the Microsoft Xbox One , Sony PlayStation 4 , and Nintendo Switch dominated the home space and were all capable of advanced 3D graphics; Windows was still one of the most active gaming platforms as well. In the 2020s', advances in ray-tracing technology allowed it to be used for real-time rendering, as well as AI-powered graphics for generating or upscaling 3D computer graphics 3D computer graphics , sometimes called CGI , 3-D-CGI or three-dimensional computer graphics , are graphics that use

3367-431: The wire-frame model and 2-D computer raster graphics in the final rendered display. In computer graphics software, 2-D applications may use 3-D techniques to achieve effects such as lighting , and similarly, 3-D may use some 2-D rendering techniques. The objects in 3-D computer graphics are often referred to as 3-D models . Unlike the rendered image, a model's data is contained within a graphical data file. A 3-D model

3458-410: The aid of computers . Computer graphics is a core technology in digital photography, film, video games, digital art, cell phone and computer displays, and many specialized applications. A great deal of specialized hardware and software has been developed, with the displays of most devices being driven by computer graphics hardware . It is a vast and recently developed area of computer science. The phrase

3549-569: The attitude of a satellite could be altered as it orbits the Earth. He created the animation on an IBM 7090 mainframe computer. Also at BTL, Ken Knowlton , Frank Sinden, Ruth A. Weiss and Michael Noll started working in the computer graphics field. Sinden created a film called Force, Mass and Motion illustrating Newton's laws of motion in operation. Around the same time, other scientists were creating computer graphics to illustrate their research. At Lawrence Radiation Laboratory , Nelson Max created

3640-557: The box office in this field. The Final Fantasy: The Spirits Within , released in 2001, was the first fully computer-generated feature film to use photorealistic CGI characters and be fully made with motion capture. The film was not a box-office success, however. Some commentators have suggested this may be partly because the lead CGI characters had facial features which fell into the " uncanny valley ". Other animated films like The Polar Express drew attention at this time as well. Star Wars also resurfaced with its prequel trilogy and

3731-587: The development of computer graphics as a discipline. Early projects like the Whirlwind and SAGE Projects introduced the CRT as a viable display and interaction interface and introduced the light pen as an input device . Douglas T. Ross of the Whirlwind SAGE system performed a personal experiment in which he wrote a small program that captured the movement of his finger and displayed its vector (his traced name) on

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3822-453: The development of the Gouraud shading and Blinn–Phong shading models, allowing graphics to move beyond a "flat" look to a look more accurately portraying depth. Jim Blinn also innovated further in 1978 by introducing bump mapping , a technique for simulating uneven surfaces, and the predecessor to many more advanced kinds of mapping used today. The modern videogame arcade as is known today

3913-497: The earliest films dating from 1895, but such displays were limited and not interactive. The first cathode ray tube , the Braun tube , was invented in 1897 – it in turn would permit the oscilloscope and the military control panel – the more direct precursors of the field, as they provided the first two-dimensional electronic displays that responded to programmatic or user input. Nevertheless, computer graphics remained relatively unknown as

4004-417: The early 1980s, metal–oxide–semiconductor (MOS) very-large-scale integration (VLSI) technology led to the availability of 16-bit central processing unit (CPU) microprocessors and the first graphics processing unit (GPU) chips, which began to revolutionize computer graphics, enabling high-resolution graphics for computer graphics terminals as well as personal computer (PC) systems. NEC 's μPD7220

4095-416: The early 1990s. A major advance in 3D computer graphics was created at UU by these early pioneers – hidden surface determination . In order to draw a representation of a 3D object on the screen, the computer must determine which surfaces are "behind" the object from the viewer's perspective, and thus should be "hidden" when the computer creates (or renders) the image. The 3D Core Graphics System (or Core )

4186-600: The early decade with occasional significant competing presence from ATI . As the decade progressed, even low-end machines usually contained a 3D-capable GPU of some kind as Nvidia and AMD both introduced low-priced chipsets and continued to dominate the market. Shaders which had been introduced in the 1980s to perform specialized processing on the GPU would by the end of the decade become supported on most consumer hardware, speeding up graphics considerably and allowing for greatly improved texture and shading in computer graphics via

4277-680: The effects continued to set a bar for CGI in film. In videogames , the Sony PlayStation 2 and 3 , the Microsoft Xbox line of consoles, and offerings from Nintendo such as the GameCube maintained a large following, as did the Windows PC . Marquee CGI-heavy titles like the series of Grand Theft Auto , Assassin's Creed , Final Fantasy , BioShock , Kingdom Hearts , Mirror's Edge and dozens of others continued to approach photorealism , grow

4368-450: The emergence of computer graphics hardware. Further advances in computing led to greater advancements in interactive computer graphics . In 1959, the TX-2 computer was developed at MIT's Lincoln Laboratory . The TX-2 integrated a number of new man-machine interfaces. A light pen could be used to draw sketches on the computer using Ivan Sutherland 's revolutionary Sketchpad software . Using

4459-446: The end of the decade, the GPU would begin its rise to the prominence it still enjoys today. The field began to see the first rendered graphics that could truly pass as photorealistic to the untrained eye (though they could not yet do so with a trained CGI artist) and 3D graphics became far more popular in gaming , multimedia , and animation . At the end of the 1980s and the beginning of

4550-485: The field of computer graphics. By 1973, the first annual SIGGRAPH conference was held, which has become one of the focuses of the organization. SIGGRAPH has grown in size and importance as the field of computer graphics has expanded over time. Subsequently, a number of breakthroughs in the field occurred at the University of Utah in the 1970s, which had hired Ivan Sutherland . He was paired with David C. Evans to teach an advanced computer graphics class, which contributed

4641-472: The films Flow of a Viscous Fluid and Propagation of Shock Waves in a Solid Form . Boeing Aircraft created a film called Vibration of an Aircraft . Also sometime in the early 1960s, automobiles would also provide a boost through the early work of Pierre Bézier at Renault , who used Paul de Casteljau 's curves – now called Bézier curves after Bézier's work in the field – to develop 3d modeling techniques for Renault car bodies. These curves would form

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4732-465: The final form. Some graphic art software includes filters that can be applied to 2D vector graphics or 2D raster graphics on transparent layers. Visual artists may also copy or visualize 3D effects and manually render photo-realistic effects without the use of filters. Some video games use 2.5D graphics, involving restricted projections of three-dimensional environments, such as isometric graphics or virtual cameras with fixed angles , either as

4823-489: The first ray casting algorithm, the first of a class of ray tracing -based rendering algorithms that have since become fundamental in achieving photorealism in graphics by modeling the paths that rays of light take from a light source, to surfaces in a scene, and into the camera. In 1969, the ACM initiated A Special Interest Group on Graphics ( SIGGRAPH ) which organizes conferences , graphics standards , and publications within

4914-498: The first shaders – small programs designed specifically to do shading as a separate algorithm – were developed by Pixar , which had already spun off from Industrial Light & Magic as a separate entity – though the public would not see the results of such technological progress until the next decade. In the late 1980s, Silicon Graphics (SGI) computers were used to create some of the first fully computer-generated short films at Pixar , and Silicon Graphics machines were considered

5005-402: The foundation for much curve-modeling work in the field, as curves – unlike polygons – are mathematically complex entities to draw and model well. It was not long before major corporations started taking an interest in computer graphics. TRW , Lockheed-Georgia , General Electric and Sperry Rand are among the many companies that were getting started in computer graphics by the mid-1960s. IBM

5096-565: The history of video games , Spacewar! Written for the DEC PDP-1, Spacewar was an instant success and copies started flowing to other PDP-1 owners and eventually DEC got a copy. The engineers at DEC used it as a diagnostic program on every new PDP-1 before shipping it. The sales force picked up on this quickly enough and when installing new units, would run the "world's first video game" for their new customers. (Higginbotham's Tennis For Two had beaten Spacewar by almost three years, but it

5187-480: The intelligence in the workstation, rather than continuing to rely on central mainframe and minicomputers . Typical of the early move to high-resolution computer graphics, intelligent workstations for the computer-aided engineering market were the Orca 1000, 2000 and 3000 workstations, developed by Orcatech of Ottawa, a spin-off from Bell-Northern Research , and led by David Pearson, an early workstation pioneer. The Orca 3000

5278-399: The late 1990s and 2000s, and so became familiar to a massive audience. The continued rise and increasing sophistication of the graphics processing unit were crucial to this decade, and 3D rendering capabilities became a standard feature as 3D-graphics GPUs became considered a necessity for desktop computer makers to offer. The Nvidia GeForce line of graphics cards dominated the market in

5369-423: The later films of the original trilogy. Two other pieces of video would also outlast the era as historically relevant: Dire Straits ' iconic, near-fully-CGI video for their song " Money for Nothing " in 1985, which popularized CGI among music fans of that era, and a scene from Young Sherlock Holmes the same year featuring the first fully CGI character in a feature movie (an animated stained-glass knight ). In 1988,

5460-404: The mesh to their desire. Models can be viewed from a variety of angles, usually simultaneously. Models can be rotated and the view can be zoomed in and out. 3-D modelers can export their models to files , which can then be imported into other applications as long as the metadata are compatible. Many modelers allow importers and exporters to be plugged-in , so they can read and write data in

5551-685: The mid-1980s. In 1984, Hitachi released the ARTC HD63484, the first complementary MOS (CMOS) GPU. It was capable of displaying high-resolution in color mode and up to 4K resolution in monochrome mode, and it was used in a number of graphics cards and terminals during the late 1980s. In 1986, TI introduced the TMS34010 , the first fully programmable MOS graphics processor. Computer graphics terminals during this decade became increasingly intelligent, semi-standalone and standalone workstations. Graphics and application processing were increasingly migrated to

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5642-539: The mid-level, or Autodesk Combustion , Digital Fusion , Shake at the high-end. Match moving software is commonly used to match live video with computer-generated video, keeping the two in sync as the camera moves. Use of real-time computer graphics engines to create a cinematic production is called machinima . Not all computer graphics that appear 3D are based on a wireframe model . 2D computer graphics with 3D photorealistic effects are often achieved without wire-frame modeling and are sometimes indistinguishable in

5733-572: The millions and popularized 3D graphics for home gamers. Certain late-1990s first-generation 3D titles became seen as influential in popularizing 3D graphics among console users, such as platform games Super Mario 64 and The Legend of Zelda: Ocarina of Time , and early 3D fighting games like Virtua Fighter , Battle Arena Toshinden , and Tekken . Technology and algorithms for rendering continued to improve greatly. In 1996, Krishnamurty and Levoy invented normal mapping – an improvement on Jim Blinn's bump mapping . 1999 saw Nvidia release

5824-439: The most important research centers in graphics for nearly a decade thereafter, eventually producing some of the most important pioneers in the field. There Sutherland perfected his HMD; twenty years later, NASA would re-discover his techniques in their virtual reality research. At Utah, Sutherland and Evans were highly sought after consultants by large companies, but they were frustrated at the lack of graphics hardware available at

5915-402: The native formats of other applications. Most 3-D modelers contain a number of related features, such as ray tracers and other rendering alternatives and texture mapping facilities. Some also contain features that support or allow animation of models. Some may be able to generate full-motion video of a series of rendered scenes (i.e. animation ). Computer aided design software may employ

6006-524: The nineties were created, in France, the very first computer graphics TV series: La Vie des bêtes by studio Mac Guff Ligne (1988), Les Fables Géométriques (1989–1991) by studio Fantôme, and Quarxs , the first HDTV computer graphics series by Maurice Benayoun and François Schuiten (studio Z-A production, 1990–1993). In film, Pixar began its serious commercial rise in this era under Edwin Catmull , with its first major film release, in 1995 – Toy Story –

6097-494: The physical model can match the virtual model. William Fetter was credited with coining the term computer graphics in 1961 to describe his work at Boeing . An early example of interactive 3-D computer graphics was explored in 1963 by the Sketchpad program at Massachusetts Institute of Technology's Lincoln Laboratory . One of the first displays of computer animation was Futureworld (1976), which included an animation of

6188-442: The quality of CGI generally. Home computers became able to take on rendering tasks that previously had been limited to workstations costing thousands of dollars; as 3D modelers became available for home systems, the popularity of Silicon Graphics workstations declined and powerful Microsoft Windows and Apple Macintosh machines running Autodesk products like 3D Studio or other home rendering software ascended in importance. By

6279-628: The render engine how to treat light when it hits the surface. Textures are used to give the material color using a color or albedo map, or give the surface features using a bump map or normal map . It can be also used to deform the model itself using a displacement map . Rendering converts a model into an image either by simulating light transport to get photo-realistic images, or by applying an art style as in non-photorealistic rendering . The two basic operations in realistic rendering are transport (how much light gets from one place to another) and scattering (how surfaces interact with light). This step

6370-401: The result is two-dimensional, without visual depth . More often, 3-D graphics are being displayed on 3-D displays , like in virtual reality systems. 3-D graphics stand in contrast to 2-D computer graphics which typically use completely different methods and formats for creation and rendering. 3-D computer graphics rely on many of the same algorithms as 2-D computer vector graphics in

6461-432: The same fundamental 3-D modeling techniques that 3-D modeling software use but their goal differs. They are used in computer-aided engineering , computer-aided manufacturing , Finite element analysis , product lifecycle management , 3D printing and computer-aided architectural design . After producing a video, studios then edit or composite the video using programs such as Adobe Premiere Pro or Final Cut Pro at

6552-507: The seminal GeForce 256 , the first home video card billed as a graphics processing unit or GPU, which in its own words contained "integrated transform , lighting , triangle setup / clipping , and rendering engines". By the end of the decade, computers adopted common frameworks for graphics processing such as DirectX and OpenGL . Since then, computer graphics have only become more detailed and realistic, due to more powerful graphics hardware and 3D modeling software . AMD also became

6643-474: The talent for drawing. Now Catmull (along with many others) saw computers as the natural progression of animation and they wanted to be part of the revolution. The first computer animation that Catmull saw was his own. He created an animation of his hand opening and closing. He also pioneered texture mapping to paint textures on three-dimensional models in 1974, now considered one of the fundamental techniques in 3D modeling . It became one of his goals to produce

6734-405: The temporal description of an object (i.e., how it moves and deforms over time. Popular methods include keyframing , inverse kinematics , and motion-capture ). These techniques are often used in combination. As with animation, physical simulation also specifies motion. Materials and textures are properties that the render engine uses to render the model. One can give the model materials to tell

6825-543: The time, so they started formulating a plan to start their own company. In 1968, Dave Evans and Ivan Sutherland founded the first computer graphics hardware company, Evans & Sutherland . While Sutherland originally wanted the company to be located in Cambridge, Massachusetts, Salt Lake City was instead chosen due to its proximity to the professors' research group at the University of Utah. Also in 1968 Arthur Appel described

6916-521: The underlying sciences of geometry , optics , physics , and perception . Computer graphics is responsible for displaying art and image data effectively and meaningfully to the consumer. It is also used for processing image data received from the physical world, such as photo and video content. Computer graphics development has had a significant impact on many types of media and has revolutionized animation , movies , advertising , and video games , in general. The term computer graphics has been used in

7007-549: The video game industry and impress, until that industry's revenues became comparable to those of movies. Microsoft made a decision to expose DirectX more easily to the independent developer world with the XNA program, but it was not a success. DirectX itself remained a commercial success, however. OpenGL continued to mature as well, and it and DirectX improved greatly; the second-generation shader languages HLSL and GLSL began to be popular in this decade. In scientific computing ,

7098-448: The widespread adoption of normal mapping , bump mapping , and a variety of other techniques allowing the simulation of a great amount of detail. Computer graphics used in films and video games gradually began to be realistic to the point of entering the uncanny valley . CGI movies proliferated, with traditional animated cartoon films like Ice Age and Madagascar as well as numerous Pixar offerings like Finding Nemo dominating

7189-418: The world's primary research center for computer graphics through the 1970s. Also, in 1966, Ivan Sutherland continued to innovate at MIT when he invented the first computer-controlled head-mounted display (HMD). It displayed two separate wireframe images, one for each eye. This allowed the viewer to see the computer scene in stereoscopic 3D . The heavy hardware required for supporting the display and tracker

7280-423: Was almost unknown outside of a research or academic setting.) At around the same time (1961–1962) in the University of Cambridge, Elizabeth Waldram wrote code to display radio-astronomy maps on a cathode ray tube. E. E. Zajac, a scientist at Bell Telephone Laboratory (BTL), created a film called "Simulation of a two-giro gravity attitude control system" in 1963. In this computer-generated film, Zajac showed how

7371-484: Was based on the 16-bit Motorola 68000 microprocessor and AMD bit-slice processors, and had Unix as its operating system. It was targeted squarely at the sophisticated end of the design engineering sector. Artists and graphic designers began to see the personal computer, particularly the Amiga and Macintosh , as a serious design tool, one that could save time and draw more accurately than other methods. The Macintosh remains

7462-409: Was birthed in the 1970s, with the first arcade games using real-time 2D sprite graphics. Pong in 1972 was one of the first hit arcade cabinet games. Speed Race in 1974 featured sprites moving along a vertically scrolling road. Gun Fight in 1975 featured human-looking animated characters, while Space Invaders in 1978 featured a large number of animated figures on screen; both used

7553-493: Was called the Sword of Damocles because of the potential danger if it were to fall upon the wearer. After receiving his Ph.D. from MIT, Sutherland became Director of Information Processing at ARPA (Advanced Research Projects Agency), and later became a professor at Harvard. In 1967 Sutherland was recruited by Evans to join the computer science program at the University of Utah – a development which would turn that department into one of

7644-760: Was coined in 1960 by computer graphics researchers Verne Hudson and William Fetter of Boeing. It is often abbreviated as CG, or typically in the context of film as computer generated imagery (CGI). The non-artistic aspects of computer graphics are the subject of computer science research. Some topics in computer graphics include user interface design , sprite graphics , rendering , ray tracing , geometry processing , computer animation , vector graphics , 3D modeling , shaders , GPU design, implicit surfaces , visualization , scientific computing , image processing , computational photography , scientific visualization , computational geometry and computer vision , among others. The overall methodology depends heavily on

7735-500: Was developed in 1986 – an important step towards implementing global illumination , which is necessary to pursue photorealism in computer graphics. The continuing popularity of Star Wars and other science fiction franchises were relevant in cinematic CGI at this time, as Lucasfilm and Industrial Light & Magic became known as the "go-to" house by many other studios for topnotch computer graphics in film. Important advances in chroma keying ("bluescreening", etc.) were made for

7826-463: Was developed to realize an image rendering methodology in which each pixel could be parallel processed independently using ray tracing . By developing a new software methodology specifically for high-speed image rendering, LINKS-1 was able to rapidly render highly realistic images." The LINKS-1 was the world's most powerful computer , as of 1984. Also in the field of realistic rendering, the general rendering equation of David Immel and James Kajiya

7917-432: Was easy to pinpoint exactly where the pen was on the screen at any given moment. Once that was determined, the computer could then draw a cursor at that location. Sutherland seemed to find the perfect solution for many of the graphics problems he faced. Even today, many standards of computer graphics interfaces got their start with this early Sketchpad program. One example of this is in drawing constraints. If one wants to draw

8008-498: Was introduced in the paper " ROAMing Terrain: Real-time Optimally Adapting Meshes" appearing in the Proceedings of IEEE Visualization 1997. The authors are This computer graphics –related article is a stub . You can help Misplaced Pages by expanding it . This computer science article is a stub . You can help Misplaced Pages by expanding it . Computer graphics Computer graphics deals with generating images and art with

8099-527: Was quick to respond to this interest by releasing the IBM 2250 graphics terminal, the first commercially available graphics computer. Ralph Baer , a supervising engineer at Sanders Associates , came up with a home video game in 1966 that was later licensed to Magnavox and called the Odyssey . While very simplistic, and requiring fairly inexpensive electronic parts, it allowed the player to move points of light around on

8190-560: Was the first GPU, fabricated on a fully integrated NMOS VLSI chip . It supported up to 1024x1024 resolution , and laid the foundations for the emerging PC graphics market. It was used in a number of graphics cards , and was licensed for clones such as the Intel 82720, the first of Intel's graphics processing units . MOS memory also became cheaper in the early 1980s, enabling the development of affordable framebuffer memory, notably video RAM (VRAM) introduced by Texas Instruments (TI) in

8281-522: Was the first graphical standard to be developed. A group of 25 experts of the ACM Special Interest Group SIGGRAPH developed this "conceptual framework". The specifications were published in 1977, and it became a foundation for many future developments in the field. Also in the 1970s, Henri Gouraud , Jim Blinn and Bui Tuong Phong contributed to the foundations of shading in CGI via

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