Wireframe model
A wire frame model ( engl. : Wireframe model ) is a three-dimensional geometric model , which represents a body only by its edges. A wireframe model is also used to describe a type of representation in computer graphics that shows objects in this form, even if they have been modeled in a different way.
Modeling a body as a wireframe model has the disadvantage that ambiguities can occur: a wireframe model can represent several different bodies.
When shown as a wire frame model, the corner points of an object are connected to one another by lines. With curved shapes such as ship and airplane hulls or car bodies - even with (animated) human and animal figures - so-called "isoparameter lines" are also drawn because soft shapes do not have enough corner points or edges. If the object to be displayed is based on a polygon mesh , the edges of the same are simply displayed. In this simple version, you can see through the model (between the "wires") and see the otherwise hidden parts. Another simple display method in which lines in the front cover the back lines is the haloed line algorithm .
Many programs in 3D computer graphics have modes to display the objects as a wire frame model. The advantage lies in the extremely fast calculation of the image. The disadvantage is an untrue representation of reality, which is completely sufficient for an initial overview, "navigation" or the placement of objects. If you are satisfied with the fast display, the more computationally complex part can follow using rendering .
See also
- Grid (geometry)
- Mesh
- Garland-Heckbert algorithm , a method to reduce the level of detail in a model.