Volumetric lighting is a technique used in 3D computer graphics to add lighting to a rendered scene. The term seems to have been introduced from cinematography and is now widely applied to 3D modelling and rendering especially in the field of computer and video games. Basically it allows the viewer to see the beams of a light source shining through the environment; seeing sunbeams streaming through an open window can be considered an example of volumetric lighting. To meet Wikipedias quality standards, this article or section may require cleanup. ... Lighting refers to either artificial light sources such as lamps or to natural illumination of interiors from daylight. ... Cinematography is the discipline of making lighting and camera choices when recording photographic images for the cinema. ... Rendering is the process of generating an image from a model, by means of a software program. ... This article is about computer and video games. ...
In volumetric lighting, the light cone emitted by a light source is modeled as a more or less transparent object and considered as a container of a "volume": as a result, light has the capability to give the effect of passing through an actual three dimensional medium (such as fog, dust, smoke or steam) that is inside its volume, just like in the real world. Sunlight filters through a thin layer of fog on a crisp winter morning in Albuquerque, New Mexico. ... After just three years of use dust has blocked this laptop heat sink, making the computer unusable Dust is a general name for minute solid particles with diameter less than 500 micrometers (otherwise see sand or granulates) and, more generally, for finely divided matter. ... Smoke from a wildfire Smoke is a suspension in air (aerosol) of small particles resulting from incomplete combustion of a fuel. ... In physical chemistry, and in engineering, steam refers to vaporized water. ...
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