Non-Photorealistic Computer Graphics Library

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Found 5 item(s) authored in "1979".

Proceedings An algorithm for shading of regions on vector display devices
Kurt E. Brassel, Robin Fegeas.
Proceedings of the 6th annual conference on Computer graphics and interactive techniques, Siggraph 79, pp. 126--133, 1979. [BibTeX]

Proceedings Computer Drafting of Stones, Wood, Plant and Ground Materials
Chris I. Yessios.
Siggraph 79, pp. 190--198, 1979. [BibTeX]

Proceedings On the rendering of Surfaces
A.R. Forrest.
Siggraph 79, pp. 253--259, 1979. [BibTeX]

Misc Table Paint

Author(s): Alvy Ray Smith.
Misc: Published as Tutorial Notes at SIGGRAPH '80 and SIGGRAPH '81, 1979.
[BibTeX] Find this paper on Google

Table look-up procedures are particularly useful at computer graphics installations because of the large chunks of cheap random access memory (framebuffers) which tend to be components of these facilities. We explain here how one additional framebuffer and one analog control device in addition to the tablet create a powerful and flexible extension to any typical framebuffer painting program. In particular, this readily available extra equipment gives the artist brushes which change size, shape, orientation, and/or color in realtime and smoothly. Examples are rotating brushes, animated brushes, airbrushes with changing spread and density, oriented brushes which track the direction of motion, and many more. That is, the artist is given a third dimension of stylus control which may be as graceful as the spatial two. He may define this new dimension from a menu of selections. The extra framebuffer is used as table memory. The extra device (e.g., joystick, trackball, pot, footpedal, microphone, strain guage, keyboard) is used as a controller for the added dimension. Realtime is obtained by using the output of the controller for table look-up.

Proceedings The haloed line effect for hidden line elimination
Arthur Appel, F. James Rohlf, Arthur J. Stein.
Siggraph 79, pp. 151--157, 1979. [BibTeX]

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