|
| |
| | Ray casting - Wikipedia, the free encyclopedia |
 | | Rays are cast as in Wolfenstein 3d to determine texture and wall height in every column of the display, but the sector that the ray is in is kept track of in order to minimise collision tests. | | | Ray casting is used to produce flat floor and ceiling graphics in a very similar way, except that viewer rotation around the y axis is taken into account when drawing pixel rows. | | | Ray casting is not a synonym for ray tracing. |
|
http://en.wikipedia.org/wiki/Ray_casting
(1056 words)
|
|
| |
| | Ray tracing - Wikipedia, the free encyclopedia |
| | A simple version of ray tracing known as ray transfer matrix analysis is often used in the design of optical resonators used in lasers. | | | Ray tracing in computer graphics derives its name and principles from a much older technique used for lens design since the 1900s. | | | Ray tracing can be used in any application to which geometrical optics can be applied: that is, systems in which diffraction is not important. |
|
http://en.wikipedia.org/wiki/Ray_Tracing
(2083 words)
|
|
| |
| | Ray tracing - Wikipedia, the free encyclopedia |
| | Ray tracing is a realistic method for rendering images (or frames) constructed in 3D computer graphics environments. | | | Ray tracing's popularity stems from its realism over other rendering methods (such as scanline algorithms); effects such as reflections and shadows, which are difficult to simulate in other algorithms, follow naturally from the ray tracing algorithm. | | | Ray tracing in computer graphics derives its name and principles from a much older technique used for lens design since the 1900s. |
|
http://en.wikipedia.org/wiki/Ray_tracing
(2083 words)
|
|
| |
| | Raymond Kurzweil - Wikipedia, the free encyclopedia |
| | Raymond Kurzweil (born February 12, 1948) is a pioneer in the fields of optical character recognition (OCR), text-to-speech synthesis, speech recognition technology, and electronic musical keyboards. | | | Kurzweil was the principal developer of the first omni-font optical character recognition, the first print-to-speech reading machine for the blind, the first CCD flatbed scanner, the first text-to-speech synthesizer, the first music synthesizer capable of recreating the grand piano and other orchestral instruments, and the first commercially marketed large-vocabulary speech recognition. | | | Kurzweil extends this to include technologies from far before the integrated circuit to future forms of computation. |
|
http://en.wikipedia.org/wiki/Raymond_Kurzweil
(894 words)
|
|
| |
| | Ray Ozzie - Wikipedia, the free encyclopedia |
| | Ray Ozzie (born November 20, 1955) is an American high technology executive who is best known for writing the first versions of Lotus Notes software after founding Iris Associates. | | | He received his bachelor's degree in computer science in 1979 from the University of Illinois at Urbana-Champaign, where he worked on the PLATO system. | | | After leaving Data General, Ozzie worked at Software Arts for one and half years before being recruited by Sachs to work for Lotus Development. |
|
http://en.wikipedia.org/wiki/Ray_Ozzie
(201 words)
|
|
| |
| | Gene Ray - Wikipedia, the free encyclopedia |
| | Ray worked as a master electrician in Florida for several decades and was also the inventor of several patented devices, see external links below. | | | Ray proclaimed himself a "Doctor of Cubicism" in December 2002, explaining that universities are too evil to bestow upon him such a prestigious honour of wisdom. | | | Ray has stated that his main reason for publicising what he claims to be the "Greatest Social and Scientific Discovery of Humanity" on the Internet is to induce a research group to evaluate the Time Cube and control its release upon the public. |
|
http://en.wikipedia.org/wiki/Gene_Ray
(1546 words)
|
|
| |
| | Sun Ray - Wikipedia, the free encyclopedia |
| | Sun Ray Server software is available for Sun's Solaris operating system and also for Linux. | | | The Sun Ray was introduced by Sun Microsystems in 1999 as a thin-client solution aimed at corporate environments. | | | This enables another notable feature of the Sun Ray, that it uses smartcards to allow for portable sessions, as a user can go from one Sun Ray to another and continue their work without closing any programs. |
|
http://en.wikipedia.org/wiki/Sun_Ray
(270 words)
|
|
| |
| | The Recursive Ray Tracing Algorithm |
| | Ray tracing is a method of generating realistic images by computer, in which the paths of individual rays of light are followed from the viewer to their points of origin. | | | Because the standard ray tracing algorithm actually follows the path of light from the eye of the viewer backward to the light source, it is, in that sense, often referred to as backward ray tracing. | | | In ray tracing, the camera is much like this in that it determines where on the "film" (or, in the case of ray tracing, the computer screen) the light rays hit. |
|
http://www.geocities.com/jamisbuck/raytracing.html
(4225 words)
|
|
| |
| | Volume Graphics - Discrete Ray Tracing |
| | In conventional ray tracing, computation time grows with the number of objects, and performance is greatly influenced by the type of objects comprising the scene; intersection calculation between a ray and a parametric surface is significantly more complex than intersecting the ray with a sphere or a polygon. | | | Unlike conventional ray tracing algorithms, in which analytical rays are intersected with the object list in order to find the closest intersection, in RRT 3D discrete rays (which are essentially voxelized lines) are traversed through the 3D raster in order to find the first surface voxel. | | | Observing the nature of RRT, we note that it can precompute the view-independent attributes during the voxelization phase, is attractive for ray tracing 3D sampled datasets and computed datasets, and can support ray tracing of CSG models that are efficiently synthesized and constructed during the voxelization phase [3]. |
|
http://www.cs.sunysb.edu/~vislab/projects/volume/Papers/Discrete.html
(917 words)
|
|
| |
| | Ray casting - DmWiki |
| | Once an algorithm invented for visiblity determination ray casting has been one one of the most successful algorithms in computer graphics. | | | Today ray casting is the basic building block for many modern rendering algorithms, like ray tracing or photon mapping. | | | Ray casting is an old algorithm in computer graphics that delivers a solution to the following questions : "Are two points in space mutually visible ?" and "What is the closest object to a given point ?" |
|
http://www.devmaster.net/wiki/Ray_casting
(238 words)
|
|
| |
| | Sun keeps plugging at thin clients CNET News.com |
| | Introduced in 1999, the Sun Ray 1 is a small computing cabinet with a LCD monitor and a smart card reader for identifying a computer user. | | | Sun and rivals Hewlett-Packard, Microsoft and IBM have taken to showing off research projects, an effort to convince customers and computer scientists that the companies are in the technological vanguard. | | | Sun also is working to divert PC computing attention to handheld computers and cell phones. |
|
http://news.com.com/2100-1001-881467.html
(1410 words)
|
|
| |
| | Volume Graphics - Discrete Ray Tracing |
| | In conventional ray tracing, computation time grows with the number of objects, and performance is greatly influenced by the type of objects comprising the scene; intersection calculation between a ray and a parametric surface is significantly more complex than intersecting the ray with a sphere or a polygon. | | | Unlike conventional ray tracing algorithms, in which analytical rays are intersected with the object list in order to find the closest intersection, in RRT 3D discrete rays (which are essentially voxelized lines) are traversed through the 3D raster in order to find the first surface voxel. | | | Observing the nature of RRT, we note that it can precompute the view-independent attributes during the voxelization phase, is attractive for ray tracing 3D sampled datasets and computed datasets, and can support ray tracing of CSG models that are efficiently synthesized and constructed during the voxelization phase [3]. |
|
http://www.cs.sunysb.edu/~vislab/projects/volume/Papers/Discrete.html
(1410 words)
|
|
| |
| | The Recursive Ray Tracing Algorithm |
| | Ray tracing is a method of generating realistic images by computer, in which the paths of individual rays of light are followed from the viewer to their points of origin. | | | Because the standard ray tracing algorithm actually follows the path of light from the eye of the viewer backward to the light source, it is, in that sense, often referred to as backward ray tracing. | | | In ray tracing, the camera is much like this in that it determines where on the "film" (or, in the case of ray tracing, the computer screen) the light rays hit. |
|
http://www.geocities.com/jamisbuck/raytracing.html
(1410 words)
|
|
| |
| | Mental Ray - Wikipedia, the free encyclopedia |
| | For example, features like global illumination were supported by mental ray long before they could be found in PRman, but certain rendering tasks can be much faster in PRman, albeit usually at the expense of true physical accuracy. | | | mental ray was designed to be integrated into a third-party application using an API or be used as a standalone program using the.mi scene file format for batch-mode rendering. | | | However assuming these shaders are available to mental ray, any mi file can be rendered, regardless of the software that generated it. |
|
http://en.wikipedia.org/wiki/Mental_Ray
(520 words)
|
|
| |
| | Ray Anderson -- Motivational Speakers -- BigSpeak! Speakers Bureau |
| | Ray Anderson's book, Mid-Course Correction, describes his and Interface's transformation to environmental responsibility. | | | Ray Anderson has championed a vision of Interface as a sustainable corporation by leading a worldwide war on waste and pioneering processes of sustainable development. | | | Ray Anderson is the founder, chairman and CEO of Interface, the world's largest producer of commercial carpet, which Fortune magazine listed as one of America's "100 Best Companies to Work For" in 1997 and 1998. |
|
http://www.bigspeak.com/ray-anderson.html
(520 words)
|
|
| |
| | The Recursive Ray Tracing Algorithm |
| | Ray tracing is a method of generating realistic images by computer, in which the paths of individual rays of light are followed from the viewer to their points of origin. | | | In ray tracing, the camera is much like this in that it determines where on the "film" (or, in the case of ray tracing, the computer screen) the light rays hit. | | | Because the standard ray tracing algorithm actually follows the path of light from the eye of the viewer backward to the light source, it is, in that sense, often referred to as backward ray tracing. |
|
http://www.geocities.com/jamisbuck/raytracing.html#ListOfFigures
(4225 words)
|
|
| |
| | Ray Tracing |
| | A major disadvantage of ray tracing is that its computation complexity is about square of object number. | | | With a simple implemenation of ray tracing, the effects of shadow, reflection, reflection and transparency are present on the final image without any further extension of algorithm. | | | The idea of ray tracing is tracing the light for ecah pixel, from an eye or view point through the pixel and into the scene. |
|
http://web.cs.wpi.edu/~matt/courses/cs563/talks/ray.html
(512 words)
|
|
| |
| | Ray Tracing Goes Mainstream |
| | Ray tracing relies on a so-called “acceleration structure”; this is organized as a spatial partitioning or indexing structure. | | | Ray tracing, and by extension, global illumination does not suffer from these limitations just outlined, but it has its own set of problems that we discuss here. | | | It is strongly effected by the number of rays shot in a scene and weakly effected by the complexity of the scene, which is different than raster graphics. |
|
http://www.intel.com/technology/itj/2005/volume09issue02/art01_ray_tracing/p05_ray_tracing.htm
(1847 words)
|
|
| |
| | South Central Arkansas Drug Task Force v. Ray (Ro... |
| | Ray and other agents were provided with health and retirement benefits by the State of Arkansas. | | | Ray indicated that the group he works with has five employees and is supervised by Joe Thomas. | | | Ray is a state employee within the meaning of PEWCA. |
|
http://courts.state.ar.us/opinions/1997a/970205/ca96-126.html
(1111 words)
|
|
| |
| | CNN - Here comes the Sun Ray - November 2, 1999 |
| | Alongside the Sun Ray are other vendors' products that use proprietary remote network display protocols, such as the Wyse and Neosoft Windows Terminals on the hardware side, and SCO Tarantella, Citrix MetaFrame, and Microsoft Windows Terminal Server on the software side. | | | The Sun Ray 1 is a good step towards a functional thin-client computing system, and it offers a low-cost software and hardware solution to workgroups and enterprises alike. | | | The ultra-thin client computation model of the Sun Ray 1 is different from JavaStation in that all its application processing occurs on the server end, leaving the desktop responsible only for displaying graphics. |
|
http://www.cnn.com/TECH/computing/9911/02/sun.ray.idg
(1541 words)
|
|
| |
| | Municipality of Anchorage v. Ray (6/18/93) ap-1297 |
| | Ray was charged with driving while intoxicated under the Anchorage Municipal Code, 9.28.020. | | | Ray's basic argument is that the government must employ the least intrusive method capable of testing the motorist's blood alcohol level. | | | Ray reads this footnote as an indication that the police are constitutionally limited to the least intrusive reasonable test available. |
|
http://www.touchngo.com/ap/html/ap-1297.htm
(4500 words)
|
|
| |
| | ray tracing - Internetnews.com - Webopedia.com |
| | Ray tracing software works by simulating the path of a single light ray as it would be absorbed or reflected by various objects in the image. | | | Ray tracing requires enormous computational resources, and is supported by only the most advanced graphics systems. | | | In computer graphics, an advanced technique for adding realism to an image by including variations in shade, color intensity, and shadows that would be produced by having one or more light sources. |
|
http://inews.webopedia.com/TERM/R/ray_tracing.html
(145 words)
|
|
| |
| | Can Ray Ozzie Save Microsoft |
| | Groove is Ozzie's attempt to create a collaborative "virtual office" space appropriate for a rapidly changing workplace, in which "lean" flexibility and outsourcing partners are part of the landscape. | | | Ozzie has long been respected in the computer industry as a visionary software architect. | | | Ozzie has spent his career successfully wresting with this challenge and has twice reinvented the software paradigm for collaboration. |
|
http://www.opentechnologies.com/writings/CC041805.htm
(926 words)
|
|
| |
| | RayTracing |
| | Ray tracing was introduced to the graphics community in 1980 by Turner Whitted, and is one of the most important global illumination algorithms used to generate high quality imagery. | | | Backward ray tracing, which is what all current ray tracers implement, uses the user's viewpoint to guide computation; thus, solving for | | | Reflected rays are computed as in the local shading model |
|
http://www.cs.nps.navy.mil/people/faculty/capps/4470/rtnotes
(926 words)
|
|
| |
| | Ray Tomlinson - Wikipedia, the free encyclopedia |
| | Raymond Tomlinson (born 1941) is a programmer who implemented an email system in 1971. | | | Tomlinson adapted a program called SNDMSG, which sent messages to other users of a time-sharing computer to run on TENEX. | | | At MIT, Tomlinson worked in the Speech Communication Group and developed an analog-digital hybrid speech synthesizer as the subject of his Master's thesis. |
|
http://en.wikipedia.org/wiki/Ray_Tomlinson
(467 words)
|
|
| |
| | Untitled |
| | "Ray Kurzweil, peerless inventor of such brain extenders as reading machines, speech recognition, and music synthesis, has now reinvented the book as a luminous synthesis of mind and machine. | | | Ray Kurzweil brings serious science, common sense, aesthetic sensibility, and a twinkling sense of humor to the question of where we are headed with the machines we call computers. | | | Ray Kurzweil is the author of The Age of Intelligent Machines, which won the Association of American Publishers' Award for the Most Outstanding Computer Science Book of 1990. |
|
http://us.penguingroup.com/static/packages/us/kurzweil
(664 words)
|
|
| |
| | Distributed Ray Tracing |
| | In traditional ray tracing a single ray per pixel is used to sample the real world by casting it through center of the pixel and evaluating what it hits. | | | If N rays are cast initially and then those rays reflect off a glossy surface and each generate N more rays, and each of those hit an object that has to be checked for shadow by casting N more rays, etc. then the computation time of distributed ray tracing can quickly become unmanageable. | | | The value computed from each of these rays is then averaged to form the true translucent component. |
|
http://web.cs.wpi.edu/~matt/courses/cs563/talks/dist_ray/dist.html
(1896 words)
|
|
| |
| | FindLaw for Legal Professionals - Case Law, Federal and State Resources, Forms, and Code |
| | VI [15] We now examine whether Ray's allegation that he was subjected to a hostile work environment is cognizable under the anti-retaliation provisions of Title VII. | | | Every time Ray (or another postal carrier) needed to load his vehicle with mail, he would have to unlock the doors, push his mail cart out onto the loading dock, go back inside and lock the doors, and then exit through a side door to take the mail from the cart into his car. | | | Ray asserts that he suf- fered from changes in workplace policy and pay, as well as from a hostile work environment. |
|
http://caselaw.lp.findlaw.com/cgi-bin/getcase.pl?court=9th&navby=case&no=9915289
(5104 words)
|
|
| |
| | TechWeb: The Business Technology Network |
| | Sun said the Sun Ray appliances would be available as part of a lease program, at $9.99 a month including maintenance. | | | Sun desktop marketing manager Craig Churchill said it was "completely stateless," and because all processing -- including graphics rendering -- was done on the server, hot deskers could pick up a computing session from any Sun Ray station on a network, simply by inserting a smart card | | | Sun fleshed out its slogan "the network is the computer" Wednesday when it unveiled what it described as "the thinnest client," a $499 network computer. |
|
http://www.techweb.com/wire/story/TWB19990908S0001
(718 words)
|
|
| |
| | sun ray 1 workstation |
| | The Sun Ray Hot Desk architecture is a computing model, initially targeted at the workgroup, where all user state is centralized on the server and linked, by a dedicated interconnect, to a simple zero administration appliance on the desktop. | | | These appliances are centrally managed by, and draw their computing resources from, the Sun Ray enterprise server software that runs on all of Sun's enterprise and workgroup servers. | | | These appliances are centrally managed by, and draw their computing resources from, the Sun Ray enterprise server software which runs on all Sun's enterprise and workgroup servers. |
|
http://www.sun.qassociates.co.uk/workstations-enterprise-appliances-sunray1.htm
(1081 words)
|
|
|
