Editing OpenGL ES (section)

==OpenGL compatibility==
{{expand section|date=September 2014}}
A few libraries have been created to emulate OpenGL calls using GL ES:
* [[Nvidia]] offers a 2-clause [[BSD license]]d library called Regal, originally started by Cass Everitt. It was last updated in 2016.<ref>{{cite web|url=https://github.com/p3/regal|title=p3/regal: Regal for OpenGL|date=18 October 2021|publisher=GitHub}}</ref> Regal is used for example by [[Google Native Client|Google's NaCl]].<ref>{{cite web|url=https://www.gamedeveloper.com/programming/in-depth-bringing-regal-opengl-to-native-client|title=In-depth: Bringing Regal OpenGL to Native Client|last=McCutchan|first=John|date=7 September 2012|publisher=Gamasutra}}</ref>
* The [[MIT license]]d GL4ES emulates OpenGL 2.1/1.5 using GL ES 2.0/1.1. It is based on glshim.<ref>{{cite web |title=GL4ES - The OpenGL driver for GLES Hardware |url=http://ptitseb.github.io/gl4es/ |website=GitHub}}</ref>