Wikipedia

Polygon (computer graphics)

Polygons are used in computer graphics to compose images that are three-dimensional in appearance. Usually (but not always) triangular, polygons arise when an object's surface is modeled, vertices are selected, and the object is rendered in a wire frame model. This is quicker to display than a shaded model; thus the polygons are a stage in computer animation. The polygon count refers to the number of polygons being rendered per frame.

Beginning with the fifth generation of video game consoles, the use of polygons became more common, and with each succeeding generation, polygonal models became increasingly complex.

Competing methods for rendering polygons that avoid seams

  • Point
    • Floating Point
    • Fixed-Point
    • Polygon
    • because of rounding, every scanline has its own direction in space and may show its front or back side to the viewer.
  • Fraction (mathematics)
    • Bresenham's line algorithm
    • Polygons have to be split into triangles
    • The whole triangle shows the same side to the viewer
    • The point numbers from the Transform and lighting stage have to converted to Fraction (mathematics)
  • Barycentric coordinates (mathematics)
    • Used in raytracing

See also

This article is copied from an article on Wikipedia® - the free encyclopedia created and edited by its online user community. The text was not checked or edited by anyone on our staff. Although the vast majority of Wikipedia® encyclopedia articles provide accurate and timely information, please do not assume the accuracy of any particular article. This article is distributed under the terms of GNU Free Documentation License.

Copyright © 2003-2025 Farlex, Inc Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.