Noun
English Wikipedia has an article on:Gouraud shadingWikipedia
Gouraud shading (usually uncountable, plural Gouraud shadings)
(computer graphics) A method of simulating the effects of light and colour across the surface of an object, based on estimates of the surface normal of each vertex in a polygonal 3D model.
Comparison with other shading techniques Comparison of flat shading and Gouraud shading. Source: Internet
In practice, Gouraud shading is most often used to achieve continuous lighting on triangle surfaces by computing the lighting at the corners of each triangle and linearly interpolating the resulting colours for each pixel covered by the triangle. Source: Internet