SeeGL official page
ABOUT
SeeGL is a free educational tool for learning the principles of OpenGL by watching the changes in the underlying state machine after the execution of each OpenGL command in the given program. It is being developed at University of Belgrade - School of Electrical Engineering.
DOWNLOADS
SeeGL version 0.4.7.1 (2015-05): download (zip archive).
Release notes: debugging - Render window resizing
SeeGL version 0.4.7 (2013-10): download (installer).
Release notes: first public version of SeeGL