- lambertian surface
- физ. изотропно отражающая или излучающая поверхность
Англо-русский толковый словарь по геоинформатике. В.Ю. Андрианов. 2015.
lambertian surface
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Lambertian surface — In the world of 3D computer graphics and visualisation, there exist many methods of representing how light sources interact with other objects in a virtual scene. These objects can be given certain properties such as: reflectivity, opacity,… … Wikipedia
Lambertian reflectance — If a surface exhibits Lambertian reflectance, light falling on it is scattered such that the apparent brightness of the surface to an observer is the same regardless of the observer s angle of view. More technically, the surface luminance is… … Wikipedia
Lambert's cosine law — See also: Lambertian reflectance In optics, Lambert s cosine law says that the radiant intensity observed from a Lambertian surface or a Lambertian radiator is directly proportional to the cosine of the angle θ between the observer s line of… … Wikipedia
Geometric albedo — The geometric albedo of an astronomical body is the ratio of its actual brightness at zero phase angle (i.e. as seen from the light source) to that of an idealized flat, fully reflecting, diffusively scattering (Lambertian) disk with the same… … Wikipedia
Bidirectional scattering distribution function — The definition of the BSDF (Bidirectional scattering distribution function) is not well standardized. The term was probably introduced in 1991 by Paul Heckbert ref|endnote veach1997 a. Most often it is used to name the general mathematical… … Wikipedia
Integrating sphere — (i.e., white), having relatively small holes as needed for entrance and exit ports. The shape of the cavity is commonly spherical, hence the name. Its relevant property is a uniform scattering or diffusing effect. Light rays incident on any point … Wikipedia
Oren–Nayar Reflectance Model — The Oren Nayar model, developed by Michael Oren and Shree K. Nayar, is a reflectance model for diffuse reflection from rough surfaces. It has been shown to accurately predict the appearance of a wide range of natural surfaces, such as concrete,… … Wikipedia
Oren–Nayar reflectance model — The Oren Nayar reflectance model, developed by Michael Oren and Shree K. Nayar, is a reflectance model for diffuse reflection from rough surfaces. It has been shown to accurately predict the appearance of a wide range of natural surfaces, such as … Wikipedia
Spectralon — reflectance material is a fluoropolymer resin that gives one of the highest diffuse reflectance of known materials or coatings over the UV VIS NIR region of the spectrum and exhibits highly Lambertian behavior. It can be machined into a wide… … Wikipedia
Diffuse reflection — For reflection of charged particles, see Scattering from rough surfaces. Diffuse and specular reflection from a glossy surface[1] Diffuse reflection is the reflection of light from a surface such that an incident ray is reflected at many … Wikipedia
Bidirectional reflectance distribution function — The bidirectional reflectance distribution function (BRDF; {f r(omega i , omega o) }) is a 4 dimensional function that defines how light is reflected at an opaque surface. The function takes an incoming light direction, omega i , and outgoing… … Wikipedia
