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  2. Help:Link color - Wikipedia

    en.wikipedia.org/wiki/Help:Link_color

    Note that the light blue color is used whether or not the page actually exists at the target wiki. For example, there is an article about George Washington Carver here on the English Wikipedia, while there is no article of the same name on the Japanese Wikipedia; but they do have an article about the same man under a different title.

  3. RGBA color model - Wikipedia

    en.wikipedia.org/wiki/RGBA_color_model

    RGBA stands for red green blue alpha. While it is sometimes described as a color space , it is actually a three-channel RGB color model supplemented with a fourth alpha channel . Alpha indicates how opaque each pixel is and allows an image to be combined over others using alpha compositing , with transparent areas and anti-aliasing of the edges ...

  4. Phong shading - Wikipedia

    en.wikipedia.org/wiki/Phong_shading

    Phong shading assumes a smoothly varying surface normal vector. The Phong interpolation method works better than Gouraud shading when applied to a reflection model with small specular highlights such as the Phong reflection model. The most serious problem with Gouraud shading occurs when specular highlights are found in the middle of a large ...

  5. Shading - Wikipedia

    en.wikipedia.org/wiki/Shading

    Flat shading a textured cuboid Graphics complex of a seashell with flat shading modeled in Mathematica. Here, the lighting is evaluated only once for each polygon (usually for the first vertex in the polygon, but sometimes for the centroid for triangle meshes), based on the polygon's surface normal and on the assumption that all polygons are ...

  6. Image gradient - Wikipedia

    en.wikipedia.org/wiki/Image_gradient

    Two types of gradients, with blue arrows to indicate the direction of the gradient. Light areas indicate higher pixel values A blue and green color gradient. An image gradient is a directional change in the intensity or color in an image. The gradient of the image is one of the fundamental building blocks in image processing.

  7. Rendering (computer graphics) - Wikipedia

    en.wikipedia.org/wiki/Rendering_(computer_graphics)

    The vector displays of the 1960s-1970s used deflection of an electron beam to draw line segments directly on the screen. Nowadays, vector graphics are rendered by rasterization algorithms that also support filled shapes. In principle, any 2D vector graphics renderer can be used to render 3D objects by first projecting them onto a 2D image plane.

  8. Videotex character set - Wikipedia

    en.wikipedia.org/wiki/Videotex_character_set

    The supplementary set for Data Syntax 3 is based on an older version of T.51, lacking the non-breaking space, soft hyphen, not sign and broken bar present in the current version, and allocating non-spacing marks for a "vector overbar" and solidus and several semigraphic characters to unallocated space in that set.

  9. Category:Shades of blue - Wikipedia

    en.wikipedia.org/wiki/Category:Shades_of_blue

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