Renamed lighting shader to default, shoehorned in glsl 3.30 support for Intel on Linux, removed duplicate handleGlError methods, added OpenGL and GLU to Object namespace, removed redundant includes for OpenGL and GLU, VBO and VAO now render (all be it incorrectly)

i-mic-fps.rb

@@ -21,6 +21,12 @@ when :OPENGL_PLATFORM_MACOSX
   OpenGL.load_lib("libGL.dylib", "/System/Library/Frameworks/OpenGL.framework/Libraries")
   GLU.load_lib("libGLU.dylib", "/System/Library/Frameworks/OpenGL.framework/Libraries")
 when :OPENGL_PLATFORM_LINUX
+  # Black magic to get GLSL 3.30 support on older Intel hardware
+  if `glxinfo | egrep "OpenGL vendor|OpenGL renderer"`.include?("Intel")
+    ENV["MESA_GL_VERSION_OVERRIDE"] = "3.3"
+    ENV["MESA_GLSL_VERSION_OVERRIDE"] = "330"
+  end
+
   gl_library_path = nil
 
   if File.exist?("/usr/lib/x86_64-linux-gnu/libGL.so") # Ubuntu (Debian)
@@ -63,6 +69,9 @@ if RUBY_VERSION < "2.5.0"
 end
 
 include CyberarmEngine
+include OpenGL
+include GLU
+
 require_relative "lib/version"
 require_relative "lib/constants"
 require_relative "lib/common_methods"
@@ -111,9 +120,6 @@ require_relative "lib/wavefront/model"
 
 require_relative "lib/window"
 
-MODEL_METER_SCALE = 1.0 # Objects exported from blender using the default or meter object scale will be close to 1 GL unit
-
-
 if ARGV.join.include?("--profile")
   begin
     require "ruby-prof"