Glossary index

Technology, science and the universe

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Graphics, games and extended reality

Luminance

Luminance is a measure of brightness in images that refers to the amount of light emitted or reflected by a surface in a visual space. In the context of computer graphics and graphic design…

Graphics, games and extended reality

Luminance-Chrominance

Luminance-chrominance is a color representation model that separates brightness information (luminance) from color information (chrominance). This approach allows for a more efficient and…

Graphics, games and extended reality

Luminance Adjustment

Luminance adjustment refers to the process of modifying brightness levels in an image, which affects its visual perception. This adjustment is crucial in image editing and digital content viewing, as…

Graphics, games and extended reality

Luminance Alpha

Luminance Alpha is a color format that combines luminance information and an alpha channel representing the transparency of a pixel. This format is essential in computer graphics, as it allows…

Graphics, games and extended reality

Luminance contrast

Luminance contrast refers to the difference in luminance between the lightest and darkest parts of an image. This concept is fundamental in computer graphics, as it influences visual perception and…

Graphics, games and extended reality

Luminance Keying

Luminance Keying is a technique used in video editing that allows for the removal of backgrounds based on the brightness of pixels. This technique relies on luminance, which is the measure of the…

Graphics, games and extended reality

Luminance mapping

Luminance mapping is a fundamental technique in computer graphics used to adjust the brightness of an image based on its luminance values. This process allows images to be represented more faithfully…

Graphics, games and extended reality

Luminance Range

Luminance range refers to the spectrum of brightness levels that can be represented in an image or display. This concept is fundamental in the realm of digital visualization, as it determines a…

Graphics, games and extended reality

Luminescence

Luminescence is a physical phenomenon that refers to the emission of light by a substance that has not been heated. Unlike incandescence, which is light produced by heating a material, luminescence…

Graphics, games and extended reality

Luminosity

Luminosity refers to the brightness of a color or light source in a 3D scene, and it is a fundamental concept in visual representation and color perception. In the context of computer graphics and 3D…

Graphics, games and extended reality

Luminous (adjective)

Luminous refers to something that is full of light or that emits light, evoking a sense of brilliance and radiance. This term applies not only to physical light, but can also have metaphorical…

Graphics, games and extended reality

LunarG

LunarG is a set of tools specifically designed for developing applications that use the Vulkan API across multiple operating systems. Vulkan is a low-level graphics and computing API that allows…

Graphics, games and extended reality

Lustrous

Lustrous refers to the quality of having a shine or glow that attracts attention. This term is commonly used to describe objects, surfaces, or materials that reflect light intensely, creating an…

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