+ WPF Support

SMCode/SM.OGL/Shaders/GenericShader.cs

@@ -82,6 +82,12 @@ namespace SM.OGL.Shaders
         /// <inheritdoc />
         public override ObjectLabelIdentifier TypeIdentifier { get; } = ObjectLabelIdentifier.Program;
 
+        public void Update(ShaderFileCollection newShaderFiles)
+        {
+            ShaderFileFiles = newShaderFiles;
+            Recompile();
+        }
+
         /// <summary>
         ///     Loads the shader to the GPU.
         /// </summary>
@@ -106,6 +112,11 @@ namespace SM.OGL.Shaders
             Load();
         }
 
+        public override void Dispose()
+        {
+            GL.DeleteShader(this);
+        }
+
         /// <summary>
         ///     Draws the mesh.
         /// </summary>

SMCode/SM.OGL/Shaders/ShaderExtensions.cs

@@ -47,6 +47,9 @@ namespace SM.OGL.Shaders
                 {
                     var name =
                         $"{prefix}{Path.GetFileNameWithoutExtension(filePath.Substring(path.Length)).Replace('.', '_')}";
+
+                    if (Extensions.ContainsKey(name)) continue;
+
                     Extensions.Add(name, new ShaderFile(reader.ReadToEnd()));
                 }
             }

SMCode/SM.OGL/Shaders/ShaderFile.cs

@@ -62,7 +62,7 @@ namespace SM.OGL.Shaders
             foreach (var kvp in StringOverrides)
                 _data = _data.Replace("//!" + kvp.Key, kvp.Value);
         }
-
+        
         internal void Compile(GenericShader shader, ShaderType type)
         {
             if (_id < 0)