OpenBve.Renderer.Initialize C# (CSharp) Méthode

        internal static void Initialize()
        {
            // opengl
            //GL.ShadeModel(ShadingModel.Decal); // what is decal?
            GL.ShadeModel(ShadingModel.Smooth);
            GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
            GL.ClearColor(0.0f, 0.0f, 0.0f, 0.0f);
            GL.Enable(EnableCap.DepthTest);
            if (!TexturingEnabled)
            {
                GL.Enable(EnableCap.Texture2D);
                TexturingEnabled = true;
            }
            GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha);
            GL.DepthFunc(DepthFunction.Lequal);
            GL.Hint(HintTarget.PerspectiveCorrectionHint, HintMode.Fastest);
            GL.Hint(HintTarget.GenerateMipmapHint, HintMode.Nicest);
            GL.Enable(EnableCap.CullFace); CullEnabled = true;
            GL.CullFace(CullFaceMode.Front);
            GL.Disable(EnableCap.Dither);
            // opengl
            GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
            GL.PushMatrix();
            GL.ClearColor(0.67f, 0.67f, 0.67f, 1.0f);
            var mat = Matrix4d.LookAt(0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 1.0, 0.0);
            GL.MultMatrix(ref mat);
            GL.PopMatrix();
            TransparentColorDepthSorting = Interface.CurrentOptions.TransparencyMode == TransparencyMode.Smooth & Interface.CurrentOptions.Interpolation != TextureManager.InterpolationMode.NearestNeighbor & Interface.CurrentOptions.Interpolation != TextureManager.InterpolationMode.Bilinear;
        }

        protected override void OnLoad(EventArgs e)
        {
            KeyDown += Program.keyDownEvent;
            KeyUp   += Program.keyUpEvent;
            Program.ResetCamera();
            World.BackgroundImageDistance = 600.0;
            World.ForwardViewingDistance  = 600.0;
            World.BackwardViewingDistance = 0.0;
            World.ExtraViewingDistance    = 50.0;

            Renderer.Initialize();
            Renderer.InitializeLighting();
            SoundManager.Initialize();
            Fonts.Initialize();
            Program.UpdateViewport();
            if (Program.processCommandLineArgs)
            {
                Program.processCommandLineArgs = false;
                for (int i = 0; i < Program.commandLineArguments.Length; i++)
                {
                    if (!Program.SkipArgs[i] && System.IO.File.Exists(Program.commandLineArguments[i]))
                    {
                        currentlyLoading     = true;
                        Program.CurrentRoute = Program.commandLineArguments[i];
                        Program.LoadRoute();
                        Program.UpdateCaption();
                        break;
                    }
                }
            }
        }