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June 1971 (vol. 20 no. 6)
pp. 623-629
A procedure for computing shaded pictures of curved surfaces is presented. The surface is approximated by small polygons in order to solve easily the hidden-parts problem, but the shading of each polygon is computed so that discontinuities of shade are eliminated across the surface and a smooth appearance is obtained. In order to achieve speed efficiency, the technique developed by Watkins is used which makes possible a hardware implementation of this algorithm.
Index Terms:
Coons patches, curved surfaces, halftone, hidden-line removal, shading.
Citation:
H. Gouraud, "Continuous Shading of Curved Surfaces," IEEE Transactions on Computers, vol. 20, no. 6, pp. 623-629, June 1971, doi:10.1109/T-C.1971.223313
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