關於「Model coordinates」標籤，搜尋引擎有相關的訊息討論：

Convert GL modelview matrix to world coordinates - Stack Overflowstackoverflow.com › questions › convert-gl-modelview-m...WebGL model view projection - Web APIs - MDN Web Docsdeveloper.mozilla.org › en-US › docs › Web › API › Web...Is vertex coordinate limited to -1 to +1f rang