Culling, rendering improvements and optimizations, block removing test.

Window.cs

@@ -11,6 +11,11 @@ namespace Voxel
         public uint frames = 0;
         public double timeElapsed = 0;
 
+        // testing
+        public Chunk Chunk;
+        private Dictionary<int, bool> _cache = new Dictionary<int, bool>();
+        private bool chunkEmpty = false;
+
         protected override void OnUpdateFrame(FrameEventArgs e)
         {
             base.OnUpdateFrame(e);
@@ -19,6 +24,31 @@ namespace Voxel
             {
                 Close();
             }
+
+            RemoveRandomBlocks();
+        }
+
+        private void RemoveRandomBlocks()
+        {
+            if (Chunk != null && !chunkEmpty)
+            {
+                Random rng = new Random();
+
+                int GetNum()
+                {
+                    int max = 4096;
+                    int num = rng.Next(max);
+                    if (_cache.ContainsKey(num)) return GetNum();
+                    _cache[num] = true;
+                    if (_cache.Count == max) chunkEmpty = true;
+                    return num;
+                }
+
+                Chunk.SetBlockIndex(GetNum(), Blocks.Air);
+            }
+
+            Renderer.ClearFaces();
+            Renderer.AddFaces(Chunk.GetChunkMesh().Faces);
         }
 
         protected override void OnRenderFrame(FrameEventArgs e)
@@ -46,6 +76,8 @@ namespace Voxel
         {
             base.OnFramebufferResize(e);
 
+            Camera.UpdateProjection(e.Width, e.Height);
+
             GL.Viewport(0, 0, e.Width, e.Height);
         }
 
@@ -53,15 +85,17 @@ namespace Voxel
         {
             base.OnLoad();
 
-            Renderer.OnLoad();
-
             GL.ClearColor(0.72f, 0.88f, 0.97f, 1f);
 
             GL.Enable(EnableCap.CullFace);
             GL.Enable(EnableCap.DepthTest);
+            GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)TextureWrapMode.Repeat);
+            GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)TextureWrapMode.Repeat);
 
             CursorState = CursorState.Grabbed;
             VSync = VSyncMode.On;
+
+            Camera.UpdateProjection(Width, Height);
         }
 
         protected override void OnMouseMove(MouseMoveEventArgs e)