tessellation


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tessellation

In surface modeling and solid modeling, the method used to represent 3D objects as a collection of triangles or other polygons. All surfaces, both curved and straight, are turned into triangles either at the time they are first created or in real time when they are rendered. The more triangles used to represent a surface, the more realistic the rendering, but the more computation is required.

Triangles Can Be Discarded
Depending on the object's distance from the camera, triangles may be discarded at the time they are rendered. Some applications create multiple models with different amounts of triangles and use the best one depending on distance. The vertices (end points) of the triangles are assigned X-Y-Z and RGB values, which are used to compute light reflections for shading and rendering.

For 3D Only
Tessellation is not used in 2D graphics. Although 2D graphics may be used to draw 3D objects, any simulation of depth and shading must be created by the artist using standard drawing tools, color fills and gradients. See surface normal, triangle and graphics pipeline.
References in periodicals archive ?
One common use of tessellation is to dynamically scale the level of detail of a terrain based on the distance from the camera.
R] formed by the dilated facet system of a stationary Poisson-Voronoi tessellation.
Our publisher told us of a guy named Jim McNeill who had amazing tessellations available online, so Pam began a rather formal discourse with Jim (the Internet was still in its early stages
For this approach to work, it is imperative that the tessellation does not leave important roof features, like e.
To create a tessellation you draw a polygon (a multiple sided shape such as a square, triangle or hexagon) and repeat it so there are no gaps between the shapes.
TRUFORM effectively increases the memory bandwidth available to the GPU (graphics processing unit) by converting 3D images with low polygon counts to smoother, high polygon count versions in the graphics chip, a process known as tessellation.
Graphically and technically, it is cutting-edge stuff using advanced techniques known as real-time deformation and tessellation to create characters with real bone structure and muscles.
The authors present the basic spatial methods used by ecologists, including geostatistics, autocorrelograms, tests of spatial randomness, Ripley's K, Kernel estimation, and tessellation, as well as several methods which ecologists have yet to employ.
Another possibility is to represent the polygon as a union of the triangles arising from Delaunay's tessellation of its vertices or as a union of a minimum possible number of convex polygons whose boundary lines are given by those of the original polygon [2, 14].
If Crysis was the benchmark when tessellation became a thing, back then it was Quake that demanded a lot from computer graphics hardware.
An intricate tessellation of triangles accented by saturated color facets, Equinox undulates from dark to light and back to dark in a metaphor for day and night.