Showing papers on "Rendering (computer graphics) published in 1975"
TL;DR: Human visual perception and the fundamental laws of optics are considered in the development of a shading rule that provides better quality and increased realism in generated images.
Abstract: The quality of computer generated images of three-dimensional scenes depends on the shading technique used to paint the objects on the cathode-ray tube screen. The shading algorithm itself depends in part on the method for modeling the object, which also determines the hidden surface algorithm. The various methods of object modeling, shading, and hidden surface removal are thus strongly interconnected. Several shading techniques corresponding to different methods of object modeling and the related hidden surface algorithms are presented here. Human visual perception and the fundamental laws of optics are considered in the development of a shading rule that provides better quality and increased realism in generated images.
3,713 citations
Patent•
8 May 1975TL;DR: A liquid developer for developing an electrostatic latent image comprising an electrically insulating carrier liquid and a toner dispersed therein comprises a copolymer having a property of rendering the toner negatively chargeable.
Abstract: A liquid developer for developing an electrostatic latent image comprising an electrically insulating carrier liquid and a toner dispersed therein comprises a copolymer having a property of rendering the toner negatively chargeable.
9 citations
Patent•
14 May 1975
TL;DR: A circular knitting machine and method of knitting in which the machine has a knitting cam track, an idle track and means for transferring selected needles from one track to the other is described in this article.
Abstract: A circular knitting machine and method of knitting in which the machine has a knitting cam track, an idle track and means for transferring selected needles from one track to the other, the machine having at least one set of needles movable through a knitting cycle by the cams in said knitting cam track and movable rearwardly to an inactive position in said idle track.
3 citations
Patent•
29 Nov 1975
TL;DR: In this article, the magnetic brush is removed from the development region of the body and a magnet is provided at a near, but not oppositely location to the development regions within the sleeve, rendering a developer collected between sensitive body and sleeve to flow down onto the sensitive body.
Abstract: PURPOSE:To enhance the development efficiency by cancelling the magnetic brush by a magnet provided at a near, but not oppositely location to the development region within the sleeve, and rendering a developer collected between sensitive body and sleeve to flow down onto the sensitive body.
3 citations
Patent•
22 Aug 1975
TL;DR: In this article, the authors propose a wave-guiding device that allows to easily and efficiently intorduce light from the outside or to emit light therefrom to the outside, even when the thickness of a light waveguiding path is relatively small.
Abstract: PURPOSE:To provide a device rendering it possible to easily and efficiently intorduce light therein from the outside or to emit light therefrom to the outside, even when the thickness of a light wave-guiding path is relatively small.
2 citations