Revert openGL 4.40 to 3.30 as stated in the README.md

CMakeLists.txt

@@ -23,7 +23,7 @@ if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
 
 elseif(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
 	add_definitions(-DLINUX)
-	set ( PROJECT_LINK_LIBS -lNGL -lGL)
+	set ( PROJECT_LINK_LIBS -lNGL  -lGL)
 
 endif()
 
@@ -45,6 +45,7 @@ add_definitions(-O2 -D_FILE_OFFSET_BITS=64 -fPIC)
 
 
 # now add NGL specific values
+#set ( PROJECT_LINK_LIBS -lNGL )
 link_directories( $ENV{HOME}/NGL/lib )
 # as NGL uses Qt we need to define that flag
 add_definitions(-DQT5BUILD)

SimpleNGL.pro

@@ -4,6 +4,7 @@ TARGET=SimpleNGL
 OBJECTS_DIR=obj
 # core Qt Libs to use add more here if needed.
 QT+=gui opengl core
+
 # as I want to support 4.8 and 5 this will set a flag for some of the mac stuff
 # mainly in the types.h file for the setMacVisual which is native in Qt5
 isEqual(QT_MAJOR_VERSION, 5) {
@@ -15,11 +16,9 @@ MOC_DIR=moc
 # on a mac we don't create a .app bundle file ( for ease of multiplatform use)
 CONFIG-=app_bundle
 # Auto include all .cpp files in the project src directory (can specifiy individually if required)
-SOURCES+= $$PWD/src/NGLScene.cpp    \
-					$$PWD/src/main.cpp
+SOURCES+= $$PWD/src/*.cpp
 # same for the .h files
-HEADERS+= $$PWD/include/NGLScene.h \
-          $$PWD/include/WindowParams.h
+HEADERS+= $$PWD/include/*.h
 # and add the include dir into the search path for Qt and make
 INCLUDEPATH +=./include
 # where our exe is going to live (root of project)

shaders/PhongFragment.glsl

@@ -1,4 +1,4 @@
-#version 410 core
+#version 330 core
 /// @brief our output fragment colour
 layout (location =0) out vec4 fragColour;
 /// @brief[in] the vertex normal

shaders/PhongVertex.glsl

@@ -1,4 +1,4 @@
-#version 410 core
+#version 330 core
 /// @brief the vertex passed in
 layout (location = 0) in vec3 inVert;
 /// @brief the normal passed in