webgl

https://dev.opera.com/articles/introduction-to-webgl-part-1/

http://www.noobyard.com/article/p-yyucluzz-tg.html

http://www.noobyard.com/article/p-qsvptusu-ss.html

https://webglfundamentals.org/webgl/lessons/zh_cn/webgl-how-it-works.html