Multiple issues orphan February 2009 context December 2008 unreferenced December 2008 Image Chicha with Pipe o.jpg thumb Vino pipe o Vino Pipe o is wine from Chile that is made from ordinary grape stock, different from other wines known by their distinctive names. Vino Pipe o is similar in flavor and sweetness to grapes from parish wines, as both come from young grapes. The drink is usually served with meat s and typical dishes of the traditional Chilean home. Its short Fermentation wine fermentation and aging processes give Vino Pipe o an Opacity optics opaque and very intense brown hue . Category Chilean wine es Vino pipe o ... more details
Multiple issues notability September 2011 primarysources September 2011 orphan November 2009 Infobox Software name WinRoll caption WinRoll screenshot Image WinRolled window.png 200px developer Wil Palma latest release version 2.0 latest release date 10th April 2004 programming language Assembly language operating system Microsoft Windows genre Personalization license zlib License website http www.palma.com.au winroll http www.palma.com.au winroll WinRoll is an open source software open source , free software Utility software utility for Windows2000 Windows 2000 , Windows XP and Windows 7 which allows the user to roll up windows into their title bar s, in addition to other window management related features. It is compiled in assembly code . History WinRoll 1.0 was first released on April 10, 2003. It was created, and is still maintained by Wil Palma. The most recent version, 2.0, was released on April 7, 2004. Being an open source program, its source code is freely available from the website. Features The purpose of WinRoll is to allow users to have many windows on the screen, while keeping them organized and manageable. The main feature of the program is enabling the user to roll windows up into their title bars. It also allows users to minimize programs to the system tray tray , and to adjust the Opacity optics opacity of windows. See also Free software Open source software Assembly language External links http www.palma.com.au winroll WinRoll Homepage http www.loonies.narod.ru winrollr.htm WinRoll Russian Edition Homepage DEFAULTSORT Winroll Category Free software programmed in assembly Category Free system software Category Windows only free software free software stub ... more details
Unreferenced date December 2009 Dark nebula image caption The Pipe Nebula name Pipe Nebula type Dark epoch J2000.0 ra 17 sup h sup 27 sup m sup dec 26 56&prime dist ly 600 to 700 dist pc 180 to 220 appmag v size v Pipe Stem 300&prime x 60&prime br Pipe Bowl 200&prime x 140&prime constellation Ophiuchus radius ly absmag v notes names Barnard 59, 65 67, & 78 br LDN 1773 LDN 42 The Pipe Nebula also known as Barnard 59, 65 67, and 78 is a dark nebula in the Ophiuchus Ophiuchus constellation . It is a large but readily apparent pipe shaped dust lane that obscures the Milky Way star clouds behind it. Clearly visible to the naked eye in the Southern United States under clear dark skies, but it is best viewed with 7x binoculars . The nebula has two main parts the Pipe Stem with an opacity of 6 which is composed of Barnard 59 , Barnard 65 65 , Barnard 66 66 , and Barnard 67 67 also known as LDN 1773 300&prime x 60&prime RA 17 sup h sup 21 sup m sup Dec 27 23&prime and the Bowl of the Pipe with an opacity of 5 which is composed of Barnard 78 also known as LDN 42 200&prime x 140&prime RA 17 sup h sup 33 sup m sup Dec 26 30&prime . The Pipe Nebula forms the hind quarters of the even larger Dark Horse astronomy Dark Horse Nebula . Category Dark nebulae Category Barnard objects es Nebulosa de la Pipa it Nebulosa Pipa pl Mg awica Rura tr Pipo Bulutsusu zh ... more details
Ciliary Body Melanoma is a type of cancer arising from the coloured part uvea of the human eye eye . About 12 of uveal melanoma arise from the ciliary body. Clinical features It occurs most commonly in the sixth decade. External signs include dilated episcleral blood vessels sentinel vessels . Extraocular erosion may produce a dark mass beneath the conjunctiva . Pressure on the Lens anatomy lens by the enlarging tumor can cause astigmatism , sublaxtion of the lens and formation of a localised lens Opacity optics opacity . The tumor can erode forward through the iris root and mimic an iris melanoma . Retinal detachment can be rarely caused by Posterior anatomy posterior extension of the tumor. Anterior uveitis is an uncommon presentation and occurs due to tumor necrosis . Cirumferentially growing tumors carry a bad prognosis as they are diagnosed late. At times the tumor is detected as an incidental finding during routine examination. The tumour is usually diagnosed by clinical examination with a slit lamp utilising a triple mirror contact lens. Ultrasonography and fine needle aspiration biopsy FNAB are also sometimes helpful in confirming the diagnosis. Treatment enucleation of the eye Enucleation surgical removal of the eye is the treatment of choice for large ciliary body melanomas. Small or medium sized tumors may be treated by an iridocyclectomy . Radiotherapy may be appropriate in selected cases. See also Ocular oncology References reflist External links http seeacure.com The See A Cure Foundation. A grassroots, patient based, eye cancer nonprofit Eye tumors Category Ocular neoplasia eye stub ... more details
Infobox Disease Name Reis Bucklers corneal dystrophy Image Reis B cklers corneal dystrophy. Reticular opacity in the superficial cornea.JPEG Caption Reis B cklers corneal dystrophy. Reticular opacity in the superficial cornea DiseasesDB ICD10 ICD9 ICDO OMIM 608470 MedlinePlus eMedicineSubj eMedicineTopic MeshID Reis Bucklers corneal dystrophy or Reis B cklers corneal dystrophy , also known as Corneal dystrophy of Bowman layer, type I , is a rare form of Corneal dystrophies in human human corneal dystrophy in which the Bowman s membrane Bowman s layer undergoes disintegration. The disease has been associated with mutations in TGFBI gene. Symmetrical reticular opacities, usually appearing bilaterally in the upper cornea by the age of 4 or 5 years, elevate the corneal epithelium , leading eventually to its erosions that prompt attacks of ocular hyperemia , pain, and photophobia . The dystrophy was described in 1917 by Reis ref name disc1 Reis W F miliare, fleckige Hornhautetartung. Dtsch Med Wochenschr 1917, 43 575. ref and in 1949 by Bucklers. ref name disc2 B cklers M ber eine weitere familiare Hornhautdystrophie Reis . Klin Monatsbl Augenheilkd 1949, 114 386 397. ref File Mutated transforming growth factor beta induced protein in the superficial corneal stroma.jpg thumb left Reis B cklers corneal dystrophy. Light microscopy of cornea showing characteristic red stained deposits of mutated TGFBI transforming growth factor beta induced protein in the superficial corneal stroma . Masson s trichrome stain . See also Corneal dystrophy of Bowman layer, type II References reflist 2 External links http dro.hs.columbia.edu reisbucklers.htm Reis Bucklers dystrophy at Digital Reference of Ophthalmology. Human corneal dystrophy DEFAULTSORT Reis Bucklers Corneal Dystrophy Category Disorders of sclera and cornea eye stub ru I ... more details
In mathematics and astrophysics, the Stromgren integral , introduced by harvs txt first Bengt last Str mgren authorlink Bengt Str mgren year 1932 loc p.123 while computing the Rosseland mean opacity , is the integral math frac 15 4 pi 4 int 0 x frac t 7e 2t e t 1 3 , dt . math harvtxt Cox 1964 discussed applications of the Stromgren integral in astrophysics, and harvtxt MacLeod 1996 discussed how to compute it. References citation last Cox first A. N. year 1964 chapter Stellar absorption coefficients and opacities title Stellar Structure series Stars and Stellar Systems Compendium of Astronomy and Astrophysics volume VIII editor1 first Lawrence Hugh editor1 last Adler editor2 first Dean Benjamin editor2 last McLaughlin publisher University of Chicago Press place Chicago, Ill url http books.google.com books?id ldpUAAAAYAAJ isbn 978 0 226 45969 1 page 195 citation journal ACM Transactions on Mathematical Software TOMS volume 22 issue 3 year 1996 publisher ACM New York place NY, USA doi 10.1145 232826.232846 title Algorithm 757 MISCFUN, a software package to compute uncommon special functions first Allan J. last MacLeod pages 288 301 citation first B. last Str mgren title The opacity of stellar matter and the hydrogen content of the stars journal Zeitschrift f r Astrophysik year 1932 volume 4 page 118 152 url http adsabs.harvard.edu abs 1932ZA......4..118S citation first B. title On the Interpretation of the Hertzsprung Russell Diagram url http adsabs.harvard.edu abs 1933ZA......7..222S last Str mgren journal Zeitschrift f r Astrophysik year 1933 volume 7 page 222 External links http www.itl.nist.gov div898 software dataplot refman2 auxillar strom.htm Stromgren integral Category Special functions Category Astrophysics ... more details
Other uses Blackout disambiguation Blackout refimprove date February 2012 Blackout refers to a Foam rubber foam backed, Opacity optics opaque fabric used to black out light . Blackout fabrics are most commonly found in hotel rooms as curtain linings or drapery fabrics, blocking much of the light that would otherwise enter through a window when the curtains are closed. For travelers, third shift workers, and parents of babies, blackout is an essential element in the bedroom . Besides window coverings, other uses for blackout fabrics include wallpaper , Projection screen movie projector screens and planetarium domes. Manufacture The process of manufacturing blackout was invented by Baltimore based Rockland Industries , ref name Rockland Industries cite news last Schneider first Eric title Post Leaderman Rockland Diversifies, Adds New Products url http www.sipco.net story post leaderman rockland diversifies introduces new products newspaper Fabrics & Furnishings International date December 12, 2000 ref and involves coating a fabric with layers of foam, or passes . A 2 pass blackout is produced by applying two passes of foam to a fabric first, a black layer is applied to the fabric, then a white or light colored layer is applied on top of the black. A 3 pass blackout is produced by applying a layer of white foam to the fabric first, then a layer of black foam followed by the third and final layer of white or light colored foam. Uses A 3 pass blackout can be used as a decorative fabric and blackout lining all in one fabric. A 2 pass cannot be used this way, because the black foam is visible through the fabric side of the material. In addition to blocking light, blackout fabrics also Thermal insulation insulate and have Soundproofing noise dampening qualities, due to their density and opacity. References reflist references Category Fabrics Textile stub ... more details
Orphan date February 2009 Ultraviolet sensitive beads UV beads are bead s that change color in the presence of ultraviolet radiation . Ultraviolet rays are present in sunlight and light from various artificial sources, and can cause sunburn or skin cancer . The color change alerts the wearer to the presence of the radiation. When the beads are not exposed to ultraviolet rays, they are colour less and either translucent or Opacity optics opaque . However, when sunlight falls onto the beads, an instant colour change occurs, turning them red, orange, yellow, blue, or purple. The beads are water fast and functionality is not decreased by time. External links http www.teachersource.com catalog page Color Light Sound UV Detecting Products ?id 4b53c621679738e0d4062d4c3bae6328 Description of ultraviolet sensitive beads and related products http www.stevespanglerscience.com experiment 00000118 Category Beadwork Category Craft materials Category Jewellery components decorative art stub ... more details
Unreferenced date November 2006 An ice detector is an optical transducer probe available for aviation purposes. It has no moving parts , is completely solid and its principle of operation is entirely optical. Intrusive to the airstream and Hermetic seal hermetically sealed , it uses un collimated light to monitor the Opacity optics opacity and optical refractive index of the substance on the probe. It is de sensitized to ignore a film of water. The device works as a combined optical spectrometer and optical switch . A change in opacity registers as Rime frost rime ice . A change in refractive index registers as clear ice. Optical components are made of acrylic glass , which is the material used for aircraft windshields. The wavelength of the transducer s excitation light is not visible to the human eye so as not to be mistaken for any kind of navigational running light. Installation Optical ice detectors can be installed on any type of air vehicle with enough air speed to keep water from accumulating on the optics, such as rotorcraft, general aviation aircraft and unmanned aerial vehicles. They can be embedded into host aerospace systems such as an altimeter , antenna, anti icing system, flight data recorder , jet engine inlet, pitot tube , Stall flight Stall warning and safety devices stall warning indicator or weather system. Optical ice detectors operate on 3.3 V DC at 100 mA. Installation requires the probe to be mounted in the airstream beyond the boundary layer , and in a location easily accessible to the pilot for occasional cleaning with a cotton swab and isopropyl alcohol . Operation The device works as a rudimentary go no go ice indicator or as an icing rate indicator for pilots who may have inadvertently entered icing domains. Electronic signal level comparator s sense the transducer s output and activate Light emitting diode LED s to indicate relative icing rates to the pilot. The pilot can then judge the rate of ice accumulation and make a piloting deci ... more details
td td Corrosive corneal opacity not reversible within 7 days td td Corneal opacity reversible within 7 days irritation persisting for 7 days td td No corneal opacity irritation reversible within 7 days ... more details
emissions and visible smoke opacity decreased significantly. Envirofuels diesel fuel catalyzer showed ... to smoke opacity The composition of TPM total diesel particulate matter is the sum of dry .... An opacity reading is a measurement of the level of visible inorganic carbon, also known as soot. Opacity .... When used in conjunction with an opacity meter, the technician can detect for example an increase in TPM, and detect a decrease in visible smoke opacity emissions. Function as a neutral clearinghouse ... more details
profusion category and shape size of small opacity see below , three illustrating large opacity, one of u sized small opacity, and one of various pleural abnormalities. The Quad Set consists of 14 radiographs ... 2 , 2 1 , 2 2 , 2 3 , 3 2 , 3 3 , and 3 . Category 0 refers to the absence of small opacity and category ... S S Large opacities A large opacity is defined as any opacity greater than 1 cm in diameter. They are classified ... more details
star nav A subdwarf star , sometimes denoted by sd , is luminosity class VI under the stellar classification Yerkes spectral classification Yerkes spectral classification system. They are defined as star s with luminosity 1.5 to 2 Absolute magnitude magnitudes lower than that of main sequence stars of the same spectral type . On an Hertzsprung Russell diagram subdwarfs appear to lie below the main sequence . The term subdwarf was coined by Gerard Kuiper in 1939, to refer to a series of stars with anomalous spectra that were previously labeled as intermediate white dwarfs . ref Ken Croswell , The Alchemy of the Heavens , New York Oxford UP, 1995 , p. 87. ref Cool subdwarfs Like ordinary main sequence main sequence stars, cool subdwarfs of spectral types G to M produce their energy from hydrogen nuclear fusion fusion . The explanation of their underluminosity lies in their low metallicity these stars are unenriched in elements heavier than helium . The lower metallicity decreases the Opacity optics opacity of their outer layers and decreases the radiation pressure , resulting in a smaller, hotter star for a given mass. ref James Kaler , Stars and their Spectra , Cambridge Cambridge UP, 1989 , p. 122. ref This lower opacity also allows them to emit a higher percentage of ultraviolet light for the same spectral type relative to a Population I star, a feature known as the ultraviolet excess . ref Ken Croswell , The Alchemy of the Heavens , New York Oxford UP, 1995 , pp. 87 92. ref Usually members of the Milky Way s Galactic halo halo , they frequently have high space velocities relative to the Sun . Subclasses of cool subdwarfs are as following ref http adsabs.harvard.edu abs 2006ApJ...645.1485B Discovery of the Coolest Extreme Subdwarf , Burgasser, Adam J. & Kirkpatrick, J. Davy, 2006. ref cool subdwarf Example SSSPM J1930 4311 sdM7 extreme subdwarf Example APMPM J0559 2903 esdM7 ref http adsabs.harvard.edu abs 1999A&A...350L..62S APMPM J0559 2903 The coolest extreme su ... more details
Artwork image file Three Spheres II.jpg title Three Spheres II artist M. C. Escher year 1946 type Lithography lithograph height 26.9 width 46.3 Italic title Three Spheres II is a Lithography lithograph print by the Netherlands Dutch artist M. C. Escher which was first printed in April 1946. As the title implies, it depicts three sphere s on a flat surface. The sphere on the left is transparent with a photorealistic depiction of the Refraction refracted light cast through it towards the viewer and onto the flat surface. The sphere in the center is reflective. Its Mirror image reflection is a self replicating image of Escher in his studio drawing the three spheres. In the reflection one can clearly see the image of the three spheres on the paper Escher is drawing on in the center sphere of that image, one can vaguely make out the reflection of Escher s studio which is depicted in the main image. This process is implied to be infinite, Recursion recursive . The sphere on the right is Opacity optics opaque and diffuse, i.e. neither specularly reflective nor transparent. See also Still Life with Spherical Mirror Hand with Reflecting Sphere Printmaking Sources Locher, J.L. 2000 . The Magic of M. C. Escher . Harry N. Abrams, Inc. ISBN 0 8109 6720 0. M. C. Escher Category Works by M. C. Escher Category 1946 paintings he 2 ... more details
File Sun diagram.svg thumb right 300px An illustration of the structure of the Sun br 1. Core br 2. Radiative zone br 3. Convective zone br 4. Photosphere br 5. Chromosphere br 6. Corona br 7. Sunspot br 8. Granules br 9. Prominence The radiation zone or radiative zone is a layer of a star s interior where energy is primarily transported toward the exterior by means of radiation radiative diffusion , rather than by convection . ref name ryan norton2010 Energy travels through the radiation zone in the form of electromagnetic radiation as photon s. Within the Sun, the radiation zone is located in the intermediate zone between the solar core at 20 of the Sun s radius and the outer convection zone at 71 of the Sun s radius. ref name ryan norton2010 Matter in a radiation zone is so dense that photons can travel only a short distance before they are absorbed or scattered by another particle, gradually shifting to longer wavelength as they do so. For this reason, it takes an average of 171,000 years for gamma ray s from the core of the Sun to leave the radiation zone. Over this range, the temperature of the plasma drops from 15 million K near the core down to 1.5 million K at the base of the convection zone. ref name elkins tanton2006 Within a radiative zone, the temperature gradient the change in temperature T as a function of radius r is given by math frac text d T r text d r frac 3 kappa r rho r L r 4 pi r 2 16 sigma T 3 r math where r is the Opacity optics opacity , r is the matter density, L r is the luminosity, and is the Stefan Boltzmann constant . ref name ryan norton2010 Hence the opacity and radiation flux L within a given layer of a star are important factors in determining how effective radiative diffusion is at transporting energy. A high opacity or high luminosity can cause a high temperature gradient, which results from a slow flow of energy. Those layers where convection is more effective than radiative diffusion at transporting energy, thereby crea ... more details
Electroluminescent Displays ELD s are a type of Flat panel display created by sandwiching a layer of electroluminescent material such as GaAs between two layers of conductors. When current flows, the layer of material emits radiation in the form of visible light. Electroluminescence EL is an optical and electrical phenomenon where a material emits light in response to an electric current passed through it, or to a strong electric field. Mechanism EL works by exciting atom s by passing an electric current through them, causing them to emit photon s. By varying the material being excited, the colour of the light emitted can be changed. The actual ELD is constructed using flat, opacity optics opaque electrode strips running parallel to each other, covered by a layer of electroluminescent material, followed by another layer of electrodes, running perpendicular to the bottom layer. This top layer must be transparent in order to let light escape. At each intersection, the material lights, creating a pixel. Abbreviations AMEL Active Matrix Electroluminescence TFEL Thin Film Electroluminescence TDEL Thick Dielectric Electroluminescence See also Electroluminescence Display examples Thick film dielectric electroluminescent technology External links http www.indiana.edu hightech fpd papers ELDs.html A site on ELDs Display Technology DEFAULTSORT Electroluminescent Display Category Electrical phenomena Category Luminescence Category Lighting Category Display technology ru fi Elektroluminesenssin ytt zh ... more details
Trust was undergoing a 2 million cost cut. ref name opacity ref name flats2002 The hospital ... Haunted Live in September 2005. ref name opacity The site was briefly occupied by around 100 Romani ... more details
Unreferenced date May 2007 The Mental Health Tribunal for Scotland is a tribunal of the Scottish Government to hear applications for, and appeals against, Compulsory Treatment Order, and appeals against Short Term Detention Certificates made under the Mental Health Care and Treatment Scotland Act 2003 , and other matters in relation to that Act, for example, appeals against Compulsion and Restriction Orders. Controversy The Mental Health Tribunal has been criticised regarding its opacity and its authority. In 2009, WikiLeaks published a membership list which had previously been hosted on the Tribunal s website but later removed, along with several observations to this effect. See also Involuntary commitment External links http www.mhtscotland.gov.uk mhts Home Welcome to the Mental Health Tribunal Official website Tribunals of the Scottish Government Category Mental health in the United Kingdom Category NHS Scotland Category Psychiatric hospitals in Scotland Category Health in Scotland Category Tribunals of the Scottish Government Category Organisations based in South Lanarkshire Category Hamilton, South Lanarkshire Category 2005 establishments in Scotland Category Government agencies established in 2005 scotland org stub scotland poli stub NHS stub ... more details
wiktionarypar batiste Batiste is the softest of the lightweight Opacity optics opaque fabrics. It is made of cotton , wool , polyester , or a blend. Description Batiste is a balanced plain weave, a fine cloth made from cotton or linen such as cambric. Batiste was often used as a lining fabric for high quality garments. Batiste is also used for handkerchiefs cotton batiste and lingerie batiste de soie . Type Lightweight opaque fabrics are very thin and light but not as transparent as sheer fabrics. The distinction between the two is not always pronounced. End uses include apparel and furnishings. Organdy a sheer fabric , lawn, and batiste begin as the same gray goods. They differ from one another in the way they are finished. Lawn and batiste do not receive the acid finish and, thus, remain opaque. Better quality fabrics are made of Combing combed yarn s. See also Cambric References Refimprove date July 2006 External links http www.beautystoponline.com Batiste s 199153.htm Batiste Official Products Website fabric Category Woven fabrics cs Batist de Batist el es Batista tejido eo Batisto fr Batiste io Batisto id Batis it Batista tessuto he nl Batist ja nds Batist pl Batyst pt Cambraia ru sq Kambriku sl Batist fi Batisti sv Batist tr Patiska uk ... more details
Image Air crescent sign.jpg thumb widthpx The arrows denote an ill defined nodular opacity in medial aspect of right upper lobe with ill defined rim of lucency surrounding it. In radiology , the air crescent sign is a finding on chest radiograph and computed tomography that is crescenteric and radiodensity radiolucent , due to a lung cavity that is filled with air and has a round radiodensity radiopaque mass. ref name pmid11152807 cite journal author Abramson S title The air crescent sign journal Radiology volume 218 issue 1 pages 230 2 year 2001 month January pmid 11152807 doi url http radiology.rsnajnls.org cgi pmidlookup?view long&pmid 11152807 ref Classically, it is due to an aspergilloma , a form of aspergillosis , that occurs when the fungus Aspergillus grows in a cavity in the lung. ref name pmid472287 cite journal author Curtis AM, Smith GJ, Ravin CE title Air crescent sign of invasive aspergillosis journal Radiology volume 133 issue 1 pages 17 21 year 1979 month October pmid 472287 doi 10.1148 133.1.17 url ref References reflist External links http radiology.rsnajnls.org content vol218 issue1 images large r01ja19g1b.jpeg Air crescent sign on CXR http radiology.rsnajnls.org content vol218 issue1 images large r01ja19g2b.jpeg Air crescent sign on CT Category Radiologic signs pl Objaw powietrznego r bka w kszta cie p ksi yca ru ... more details
File Hamptonshump.PNG thumb A Hampton hump in a person with a right low lobe pulmonary embolism. This person also has a picc line. Hampton s hump , also called Hampton hump , is a radiologic sign which consists of a shallow wedge shaped opacity in the periphery of the lung with its base against the pleural surface. ref name Pulmonary embolism cite web title Pulmonary embolism url http www.lifehugger.com doc 2042 Pulmonary Embolism work Slideshow publisher LifeHugger.com ref It is named after Aubrey Otis Hampton who first described it in 1940. ref name hampton cite journal author Hampton AO, Castleman B title Correlation of postmortem chest teleroentgenograms with autopsy findings journal Am J Roentgenol Radium Ther volume 34 pages 305 326 year 1940 ref Hampton s hump along with Westermark sign aids in the diagnosis of pulmonary embolism . See also Westermark sign References reflist External links http rad.usuhs.mil medpix medpix.html?mode quiz&imid 7946 MedPix Hampton hump Eponymous medical signs for respiratory system Category Radiologic signs ... more details
Orphan date November 2009 In computer generated imagery and real time 3D computer graphics , antiportal rendering is a way to reduce overdraw the rendering of detail which will not be in the final image , and in this way to optimize draw speed. Antiportals are related to portal computer graphics portal s, and are the inverse. An antiportal or occluder works by defining a plane geometry plane or volume which can never be seen through, normally by placing it within an Opacity optics opaque object. The renderer uses this to quickly calculate which objects faces verticies lie behind the antiportal, and so are out of line of sight, so do not need to be rendered. ref name byrne cite book title Game Level Design last Byrne first Edward authorlink coauthors year 2005 publisher Cengage Learning location isbn 1584503696 page 231 pages url accessdate ref Many video game s and 3D graphics programs use this technique for speed rendering. Unreal Tournament 2004 , among many other games, uses this technique. ref name byrne See also Portal rendering References reflist Category Computer graphics Category Unreal Compu graphics stub ... more details
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