Wire-frame model

A wireframe (English: wireframe model) is a three-dimensional geometric model that represents a body only by its edges. Also with wireframe refers to a representation in computer graphics, objects displays in this form, even if they were modeled in other ways.

The modeling of a body as a wire frame model has the disadvantage that ambiguities can occur: a wireframe model can sometimes represent several different body.

In the illustration of a wire frame model of an object, the vertices are connected by lines. For curved shapes such as ship and aircraft hulls and car bodies - even with ( animated ) human and animal figures - also called " Isoparameterlinien " are drawn, because soft forms do not have enough vertices or edges. If the displayed object is a polygon mesh are used, they are shown the same just the edges. In this simple version you can look through and see the otherwise hidden parts of the model ( between the " wires "). Another simple method of preparation, covering rear in front of lines that is the Haloed -line algorithm.

Many programs in the 3D computer graphics have modes to represent the objects as wireframe. The advantage is the extremely rapid calculation of the image. The disadvantage is an unfaithful representation of reality, but is fully sufficient for an initial overview, " navigation " or the placement of objects. If one is satisfied with the fast rendering, you can follow by rendering the calculation more complex part.