A Method for Rendering an Impression of Curved Surfaces (1st Report)
Kunio Kondo, Fumihiko Kimura · Journal of the Japan Society of Precision Engineering · 1983
The purpose of this study is to devise a suitable method of the rendering for better man-machine communication in the manipulation of pictures by computers with this method, one can easily get an impression of 3-D shapes by pictures. In this paper, the followings are studied: (1) A classification of the pattern for directly rendering the shade of curved surfaces, (2) an investigation of techniques for easy creation of halftone pictures with computers, (3) a creation of softwares for displaying animpression of curved surfaces with shaded patterns. The following results are obtained: (1) This method, which interactively creates pictures by an emphasis and/or an omission of characters of shapes, is a good method that is helpful in getting the impression of curved surfaces. (2) The classification of patterns to show the difference of shapes is established. (3) The software is available not only for representing the characters of shapes but also for producing some pictures for a poster and so on.