Spectral rendering (original) (raw)
In computer graphics, spectral rendering is a technique in which a scene's light transport is modeled with real wavelengths. This process is typically slower than traditional rendering, which renders the scene in its red, green, and blue components and then overlays the images. Spectral rendering is often used in ray tracing or photon mapping to more accurately simulate the scene, often for comparison with an actual photograph to test the rendering algorithm (as in a Cornell Box) or to simulate different portions of the electromagnetic spectrum for the purpose of scientific work. The images simulated are not necessarily more realistic appearing, but when compared to a real image pixel for pixel the result is often much closer.
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| dbo:abstract | In computer graphics, spectral rendering is a technique in which a scene's light transport is modeled with real wavelengths. This process is typically slower than traditional rendering, which renders the scene in its red, green, and blue components and then overlays the images. Spectral rendering is often used in ray tracing or photon mapping to more accurately simulate the scene, often for comparison with an actual photograph to test the rendering algorithm (as in a Cornell Box) or to simulate different portions of the electromagnetic spectrum for the purpose of scientific work. The images simulated are not necessarily more realistic appearing, but when compared to a real image pixel for pixel the result is often much closer. Spectral rendering can also simulate light sources and objects more effectively, as the light's emission spectrum can be used to release photons at a particular wavelength in proportion to the spectrum. Objects' spectral reflectance curves can similarly be used to reflect certain portions of the spectrum more accurately. As an example, certain properties of tomatoes make them appear differently under sunlight than under fluorescent light. Using the blackbody radiation equations to simulate sunlight or the emission spectrum of a fluorescent bulb in combination with the tomato's spectral reflectance curve, more accurate images of each scenario can be produced. (en) |
| dbo:wikiPageExternalLink | http://www.graphics.cornell.edu/online/box/compare.html |
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| dbo:wikiPageRevisionID | 1105530324 (xsd:integer) |
| dbo:wikiPageWikiLink | dbr:Electromagnetic_spectrum dbr:Blackbody_radiation dbr:LuxCoreRender dbr:Emission_spectrum dbc:3D_rendering dbr:Cornell_Box dbr:Rendering_(computer_graphics) dbr:Arion_(software) dbr:Ray_tracing_(graphics) dbr:Indigo_Renderer dbr:Octane_Render dbr:Photon_mapping dbr:Mental_ray dbr:Spectral_reflectance_curve |
| dbp:wikiPageUsesTemplate | dbt:More_citations_needed dbt:Reflist |
| dct:subject | dbc:3D_rendering |
| rdfs:comment | In computer graphics, spectral rendering is a technique in which a scene's light transport is modeled with real wavelengths. This process is typically slower than traditional rendering, which renders the scene in its red, green, and blue components and then overlays the images. Spectral rendering is often used in ray tracing or photon mapping to more accurately simulate the scene, often for comparison with an actual photograph to test the rendering algorithm (as in a Cornell Box) or to simulate different portions of the electromagnetic spectrum for the purpose of scientific work. The images simulated are not necessarily more realistic appearing, but when compared to a real image pixel for pixel the result is often much closer. (en) |
| rdfs:label | Spectral rendering (en) |
| owl:sameAs | freebase:Spectral rendering wikidata:Spectral rendering https://global.dbpedia.org/id/fxDB |
| prov:wasDerivedFrom | wikipedia-en:Spectral_rendering?oldid=1105530324&ns=0 |
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| is dbo:wikiPageWikiLink of | dbr:Photon_mapping |
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