ambient file A binary file in which indirect irradiance valuesĪnd their gradients are stored for reuse in other calculations. It is more accurately referred to as a diffuse interreflection calculation. Replaces this global average with local averages based on indirect Is specified in SI units of watts per steradian per square meter for Radiance over all directions and all points of interest in a scene. ambient (value, calculation) An ambient value approximates the global average of Which is equal to 90 degrees minus the polarĪngle. altitude The angle between a vector and the surface horizon, alias In a Radiance scene description, an aliasĪssociates a new identifier (and possibly a new modifier) with a algorithm A method that is fully described in a procedure orĬomputer program. An albedo of 0 means that the particles do not scatter light.Īn albedo of 1 means that the particles do not absorb light. ![]() albedo The unitless ratio between the scattering coefficient and the extinction Where the default number of samples is deemed inadequate to achieve theĭesired accuracy. adaptive sampling The automatic sending of additional samples in cases In SI units, this is specified as aįraction per meter. Glossary absorption coefficient The fraction of light absorbed per unit distance inĪ participating medium.
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