Related introduction:
In ACGN cultural circle, the second element is used as the name of "overhead world" or dream world. One dimension is a straight line, two dimensions are planes, and three dimensions are solids. Three-dimensional animation directly draws two-dimensional plane images in the three-dimensional space established by computer, thus producing three-dimensional effects.
With the birth of three-dimensional animation, two-dimensional is no longer just a two-dimensional virtual world. As long as the plane comics are processed by special technical means, they can also produce three-dimensional effects, from which 3D comics come.
Extended data
Related background:
Our usual concept of space refers to a three-dimensional space composed of length, width and height. Time itself has some characteristics of dimensions, for example, a time axis can connect countless 3-dimensional spaces, so we can think that we live in 3+ 1 dimensional space-time (4-dimensional space);
The original meaning of "secondary element" is a two-dimensional plane and a concept of spatial dimension. Any point of the second dimension can be located by two coordinate axes (such as X axis and Y axis). When representing the area of the second dimension, it is usually in units of 1 pixel.
With the development of ACGN culture, the second element also began to refer to animation, comics, games (mainly GalGame and Japanese card games, including but not limited to this), novels (including but not limited to light novels), virtual idols, some movies, some TV dramas, and their derived fan creations and peripheral products.
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