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 ?
The novelty of the submitted work in relation to [19] is that we apply a higher-order Voronoi tessellation differently from [19] to solve the indoor localization problem.
A total of 12 four-body potentials were generated and evaluated in this study (3 atomic alphabets x 4 edge-length cutoffs, which includes the case where no cutoff is applied to the original tessellations).
A more general technique that several authors propose is the tessellation of a squared heightmap.
The set of C-alpha points associated with a protein structure are used as vertices to create hundreds of nonoverlapping, space filling, irregular tetrahedra that collectively form a convex hull, referred to as a Delaunay tessellation in the computational geometry literature [12], which we generate with the Qhull software package [10].
Hexagonal and square tessellations applied to pattern analysis and generalization
Grades one, two and four received colored construction paper for their mosaics, animal patterns and molas, and grades three and five received white paper for their Op art and tessellations. Next, keeping the paper horizontal, I helped them measure one and a half inches down from each side and one and a half inches up from each side.
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!).
Pappas delivers a new way to enjoy and learn some sublimely abstract notions, such as tessellations, fractals, googols, imaginary numbers, and much more.
In addition, three group projects that required collaborative problem solving were added, including, tessellations in aboriginal art and beadwork; the construction of a traditional moose-caller; and a multicultural cookbook.
Off the back and out the echo after the bluff, moving through the celery bog to the big sink, past all the refineries of this afternoon drones of the next but up with the wand forward with whiskey the robe makes one further slouch, the plank comes and goes, fuming then curtain after curtain of assertions and disclosures, a stretch with wiggle delivered with the utmost discretion, like the rack left bare when the prize winner is in remission, and the dead have lost all confidence-- the ocean is only a phonetic corruption of whatever formlessness the Shoshone say only a wolverine would have a word for laughter mauls a palsied code artless tessellations improvised in rock and bone, until all comparisons learn to sit still and be appropriate.
See Figure 1 (a) and Figure 2 (a) for examples of such help lines, and tessellations.
They must perform tessellations to solve the problem of "Art Class." In "Tony's Walk," students read, interpret, and integrate information presented in a graph to write a short story.