16.09.2020

~ Fixed shading import
~ Fixed "Plate" mesh
~ Move the dll files into "SMCode"

SMCode/SM.OGL/GLDebugging.cs

@@ -0,0 +1,51 @@
+using System;
+using System.Diagnostics;
+using System.Net.Http;
+using System.Runtime.InteropServices;
+using OpenTK.Graphics.OpenGL4;
+using OpenTK.Platform.Egl;
+
+namespace SM.OGL
+{
+    public static class GLDebugging
+    {
+        private static DebugProc _debugProc = DebugCallback;
+        private static GCHandle _debugGcHandle;
+
+        public static Action<DebugSource, DebugType, DebugSeverity, string> DebugAction = DefaultDebugAction;
+
+        [DebuggerStepThrough]
+        private static void DebugCallback(DebugSource source, DebugType type, int id, DebugSeverity severity,
+            int length, IntPtr message, IntPtr userparam)
+        {
+            string msg = Marshal.PtrToStringAnsi(message, length);
+            DebugAction?.Invoke(source, type, severity, msg);
+        }
+
+        public static void EnableDebugging()
+        {
+            try
+            {
+                _debugGcHandle = GCHandle.Alloc(_debugProc);
+
+                GL.DebugMessageCallback(_debugProc, IntPtr.Zero);
+                GL.Enable(EnableCap.DebugOutput);
+                GL.Enable(EnableCap.DebugOutputSynchronous);
+            }
+            catch
+            {
+                Console.WriteLine("Enableing proper GLDebugging failed. \n" +
+                                  "Often it fails, because your hardware doesn't provied proper OpenGL 4 \n" +
+                                  "    or KHR_debug extension support.");
+
+            }
+        }
+
+        public static void DefaultDebugAction(DebugSource source, DebugType type, DebugSeverity severity, string msg)
+        {
+            Console.WriteLine($"{severity}, {type}, {source} -> {msg}");
+
+            if (type == DebugType.DebugTypeError) throw new Exception(msg);
+        }
+    }
+}