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Anisotropic Filtering (AF) is a method of enhancing the image quality of textures and surfaces that are far away and steeply angled with respect to the point of view. Older techniques don't don’t take account of the angle that the surface is viewed from, which can result in aliasing or blurring textures. By reducing detail in one direction more than another, these effects can be reduced.
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This is the process that removes the aliasing effect. A filtering method is normally used in the process that removes the "jaggedness effect" “jaggedness effect” produced by pixels. (See also Aliasing).
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Emitter
In Maxwell Render, "emitter" “emitter” refers to geometry that has an emitter material applied to it.
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The focal length of a lens refers to the distance between the lens itself and its focal point (where the light will be focused, usually where the film is). The focal length of a lens determines the field of view (FOV), or how much you see of your scene, and also the DOF. A small focal length lens (15-24mm) is said to be a wide-angle lens because it captures a lot of the scene (it has a wide FOV), and its DOF is wide (almost all the objects in the scene will be in focus). A large focal length lens (80-200mm) is said to be a telephoto lens as it acts like a binocular, "zooming" “zooming” in to a particular area of your scene (it has a small FOV) and the DOF will be very narrow (only a small portion of your scene will be in focus).
FPS
An abbreviation for "frames “frames per second"second”.
Fresnel Effect
The apparent increase/ decrease of a surface's surface’s reflectance based on viewing angle. The Fresnel effect is dependent on the IOR of the material. The higher the IOR, the more reflective a material becomes at all angles. This means the Fresnel effect diminishes because the material becomes equally reflective at all angles. The effect has been named after the French physicist who described it.
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An important notion in optics, f-Stop expresses the diameter of the diaphragm of the lens in terms of the effective focal length of the lens. f-Stop is the quantitative measure of lens speed in photography. The smaller the f-Stop, the bigger the diaphragm opening (aperture) of the lens is, allowing more light in and making the DOF narrower, meaning only a small area of the image will be in focus.
G
GMT
Refers to "Greenwich “Greenwich Mean Time"Time”, generally used as a universal time zone.
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IOR (complex/full)
IOR stands for "Index “Index Of Refraction" Refraction” and is a measure of how much the speed of light is reduced as it passes from a vacuum into a material. Complex or full IOR data are collected from precise measurements in laboratories and describe the optical properties of a material to the highest degree of accuracy. These materials are extremely realistic.
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Film ISO, or film speed, is the measure of a photographic film's film’s sensitivity to light. The lower the ISO, the lower the film's film’s sensitivity, requiring a longer exposure, while a film with a high ISO needs only a short exposure to light.
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Lambertian reflectance means that light falling on a surface is scattered in such a way that the apparent brightness of the surface is the same, regardless of the observer's observer’s angle of view. In other words: the surface's surface’s luminance is the same regardless of angle of view. Many rough surfaces, such as unfinished wood, exhibit Lambertian reflectance. In Maxwell Render, Lambertian behavior is seen when Roughness is set to 100.
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Describes a location north or south of the equator. Technically, it is an angular measurement in degrees ranging from 0 degrees at the equator, to 90 degrees at the poles. Latitude can be combined with longitude to give a precise position on the Earth's Earth’s surface.
Longitude
Describes a location east or west of a north-south line called the Prime Meridian. Longitude is given as an angular measurement ranging from 0 degrees at the Prime Meridian to +180 degrees eastward and -180 degrees westward. Longitude and latitude together can point to a specific location on the Earth's Earth’s surface.
Lumens
Lumens (lm) is the SI unit for luminous flux. It is a common way to specify how much light is emitted. Light manufacturers usually supply this data.
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Refers to the Maxwell render engine, which is command line controllable. Users can connect to MXCL via one of the supported plug-ins or through Studio.
MXED
Stands for "Maxwell “Maxwell Material Editor"Editor”. It is a standalone material editor within the Maxwell Render software, with powerful, layered, physical materials and a material browser.
MXI
Stands for "Maxwell Image"“Maxwell Image”. It is Maxwell Render's Render’s high dynamic image format which stores all the lighting calculations. This powerful image format allows for resume render and Multilight adjustments.
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This option allows us to light the scene with a HDR or MXI map. In this box there is an option for selecting the type of lighting for the channels that are disabled. With this option you can, for example, insert a background into your image if you apply the map in background textured.
MXM
Stands for "Maxwell Material"“Maxwell Material”. It is the Maxwell material format.
MXS
Stands for "Maxwell Scene"“Maxwell Scene”. It is the Maxwell Render scene format.
MXST
Stands for "Maxwell Studio"“Maxwell Studio”. It is an independent application within the core components of Maxwell Render. MXST allows users to import objects in different formats, create/ edit/ apply materials, and set up lights and textures. MXST can then send the scene to MXCL to be rendered. MXST is not a modelling application.
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A polygon is a closed plane which is bound by three or more line segments. A triangle polygon has three sides; a "Quad" “Quad” had four sides and an "N“N-gon" gon” can have more than four sides. Maxwell Render transforms all types of polygons into triangles when rendering.
R
RGB
Stands for "red“red, green, blue"blue”. Red, green and blue are the 3 colors that are used by monitors to display images. They are called additive colors because the more of each RGB color is added, the brighter the resultant color. 100% of RGB will produce white.
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In photography and optics, vignetting is a reduction in image brightness in the image periphery compared to the image centre. It can be controlled using Maxwell Render's Render’s SimuLens parameters. Wide-angle lenses (with a focal length of around 24mm) will produce more vignetting compared to larger focal length lenses. After a certain focal length (around 80mm) the vignetting effect is no longer noticeable.
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The Watt is the SI derived unit of power, equal to one joule per second. Watts specifies how much electricity a light source consumes.