Overview of Three-Dimensional Computer Graphics DONALD H. HOUSE Visualization Laboratory, College of Architecture, Texas A&M University Three-dimensional computer graphics is called three-dimensional for several reasons. The graphics are generated by constructing a virtual 3D model which is then imaged, employing a physical simulation of illumination in three-dimensional space. Much of the research in the field is aimed at creating an illusion of three-dimensionality. Devices such as perspective, physically realistic shading, focus, atmospherics, and 3D motion for animation have been investigated [Foley et al. 1990; Watt and Watt 1992; Glassner 1995]. ORGANIZATION OF A 3D GRAPHICS SYSTEM A three-dimensional graphics system can be organized into three major components: scene specification, rendering, and image storage and display. Figure 1 gives a schematic view of the process used in three-dimensional graphics and shows the role of each component. Scene Specification. Scene specification provides an internal 3D representation of the virtual scene to be imaged. Its interface may be interactive or programmable. Scene specification requires a concept of geometric coordinate system and ways of describing geometry, virtual materials, and lighting. Each local coordinate system used to describe the geometry of the scene is defined with respect to an external reference system. These
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Overview of three-dimensional computer graphics
House, Donald H.
Follow ACM Computing Surveys (CSUR)
, Volume 28 (1)
Association for Computing Machinery – Mar 1, 1996
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