What Does triangle Mean
Originating from the Latin triangulus , the word triangle is used to identify a polygon made up of 3 sides . This geometric figure is achieved from the union of three lines that intersect at three misaligned points. Each of these points where the lines meet is called a vertex, while the segments that can be seen in the figure are called sides.
A triangle, according to the theory , always has three sides and an equal number of vertices and internal angles. It is usually known by the name of its vertices, designated with capital Latin letters: triangle ABC .
There are different ways to classify a triangle. Depending on the amplitude of its angles, for example, a triangle can be a right triangle (it has a right internal angle, delimited by a pair of sides known as legs, while the remaining is called the hypotenuse), or acute (its three interior angles are acute) or obtuse (one of its angles is obtuse).
Another possible classification of triangles is given by the length of the sides. In this sense, triangles can be equilateral (all sides share an identical length with each other), isosceles (if two sides have the same measure) or scalenes (all sides have different extensions).
In the field of music , a triangle is an element that is part of the group of percussion instruments. It consists of a metal rod similar in appearance to the geometric figure that gives it its name, tied to a loop or cord and produces sounds when struck with a stick of the same material. The sound is born by the vibrations of the metal after the blow.
The triangle is characterized by being able to produce very high notes, although hardly identifiable in height. The musician is in a position to generate an open or closed sound according to the way he holds the instrument.
Triangles as the basis of 3D entertainment
Given the successful return of the third dimension to the cinema and its gradual acceptance in the world of video games, it is necessary to make a distinction between this effect, technically called stereoscopic 3D , and the technique that is based on the use of triangles and other polygons to build 3-dimensional models, very popular since the mid-90s.
The first effective approach to 3D gaming was undoubtedly the responsibility of id Software, co-founded by acclaimed programmer John Carmack . Thanks to titles like Wolfenstein 3D and Doom, gamers experienced an unprecedented level of immersion, which would change the foundations of digital entertainment forever.
These games, however, used techniques and tricks to simulate the depth of their settings and characters, since in many cases they were images without volume that changed according to the player's perspective. Before long, the foundations of 3-dimensional development were laid, and the triangle was chosen by the majority as the basic geometric figure .
For a few years, the most prominent names in the industry struggled to increase the number of polygons that their engines - the set of tools necessary to develop a game - were capable of putting on screen. It is known that millions a year are invested in research to increase this value, which is less and less important in the final product.
Although triangles form the basis of almost any three-dimensional object, it would be impossible to achieve a realistic amount of detail based on such a figure . To overcome this limitation, a series of visual effects are used that can substantially improve the appearance of a model.