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Gouraud shading works by measuring the colour and brightness at the vertices of the polygons that make up the object and mixing these to get values for the areas inside the polygons. Specialized hardware makes this process relatively fast. The technique is named after its inventor, Henri Gouraud, and was developed in 1973.
The three stars are taken from the arms of the Duchy of Selje. The flag uses the pan-Slav colours. Effective date: 25 June 1991.
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