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Three. JS introductory learning notes 0: illustration of how webgl and threejs work
2022-07-07 15:48:00 【Jiang Duoduo_ Mostly Harmless 】
Reference Content
https://www.jianshu.com/p/67809ccba021?tdsourcetag=s_pcqq_aiomsg
What I understand is :
1. Coordinate transformation through matrix , Set the three-dimensional coordinates , Transform to two-dimensional coordinates on the screen
2. By obtaining vertex coordinates , Element assembly, etc , Draw points , A straight line , triangle , Building 3D scenes .
3.three.js Help us calculate the matrix , Change coordinates , It simplifies many other things .
So what we need to do is put the real world three-dimensional objects , By painting vertices , Write location information, etc , Turn it into a two-dimensional illusion that looks like a three-dimensional entity .
So when you can't do it , When I don't know how to write , appear bug When , When converting the two-dimensional illusion , Did not understand the principle of conversion , Find the transformation principle of the corresponding problem , The corresponding problem will be solved .
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