lambertian

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• 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

• 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

• 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

• 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

• 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

• 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

• Albedo — The albedo of an object is the extent to which it diffusely reflects light from the sun. It is therefore a more specific form of the term reflectivity. Albedo is defined asthe ratio of diffusely reflected to incident electromagnetic radiation. It …   Wikipedia

• Light-emitting diode — LED redirects here. For other uses, see LED (disambiguation). Light emitting diode Red, pure green and blue LEDs of the 5mm diffused type Type Passive, optoelectronic Working principle Electr …   Wikipedia