關於「OpenGL coordinate system」標籤，搜尋引擎有相關的訊息討論：

How Does OpenGL's Coordinate System Work? - Stack Overflowstackoverflow.com › questions › how-does-opengls-coordi...Coordinate Systems - LearnOpenGLlearnopengl.com › Getting-started › Coordinate-SystemsUnderstanding Coordinate Transformations · LegacyOpenGLgdbooks.gitbooks.io ›