Changes

Scott has been working on preparing to make the switch to OpenGL Core Profile <ref>https://sourceforge.net/p/flightgear/mailman/message/37147065/</ref>:

Scott has been working on preparing to make the switch to OpenGL Core Profile <ref>https://sourceforge.net/p/flightgear/mailman/message/37147065/</ref>:

* Compile OSG with Core - {{Done}}

* Compile OSG with Core - {{Done}}

* Disable (a.k.a hack) SG/FG [[FlightGear_and_OpenGL_ES#Affected_features_and_sources|features requiring compatibility profile]] {{Progressbar|70}}

* Disable (a.k.a hack) SG/FG [[FlightGear_and_OpenGL_ES#Affected_features_and_sources|features requiring compatibility profile]] {{Done}}

* Review GLSL shaders to identify where changes are required - {{Progressbar|100}}

* Review GLSL shaders to identify where changes are required - {{Done}}

* Refactor GLSL shaders  {{Progressbar|90}}

* Refactor GLSL shaders  {{Progressbar|90}}