diff --git a/.gitignore b/.gitignore
index 3b2a2e2..685cf4d 100755
--- a/.gitignore
+++ b/.gitignore
@@ -90,4 +90,5 @@ Thumbs.db
 Desktop.ini
 
 # Android
-.csettings
\ No newline at end of file
+.csettings
+/.vs/Projekt_FORUM/v15
diff --git a/.vs/ProjectSettings.json b/.vs/ProjectSettings.json
new file mode 100644
index 0000000..0cf5ea5
--- /dev/null
+++ b/.vs/ProjectSettings.json
@@ -0,0 +1,3 @@
+{
+  "CurrentProjectSetting": "No Configurations"
+}
\ No newline at end of file
diff --git a/.vs/VSWorkspaceState.json b/.vs/VSWorkspaceState.json
new file mode 100644
index 0000000..bb42b5b
--- /dev/null
+++ b/.vs/VSWorkspaceState.json
@@ -0,0 +1,7 @@
+{
+  "ExpandedNodes": [
+    "",
+    "\\src"
+  ],
+  "PreviewInSolutionExplorer": false
+}
\ No newline at end of file
diff --git a/.vs/slnx.sqlite b/.vs/slnx.sqlite
new file mode 100644
index 0000000..ab06680
Binary files /dev/null and b/.vs/slnx.sqlite differ
diff --git a/Projekt_FORUM.vcxproj.user b/Projekt_FORUM.vcxproj.user
new file mode 100644
index 0000000..09a332b
--- /dev/null
+++ b/Projekt_FORUM.vcxproj.user
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LocalDebuggerWorkingDirectory>$(ProjectDir)/bin</LocalDebuggerWorkingDirectory>
+    <DebuggerFlavor>WindowsLocalDebugger</DebuggerFlavor>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <LocalDebuggerWorkingDirectory>$(ProjectDir)/bin</LocalDebuggerWorkingDirectory>
+    <DebuggerFlavor>WindowsLocalDebugger</DebuggerFlavor>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LocalDebuggerWorkingDirectory>$(ProjectDir)/bin</LocalDebuggerWorkingDirectory>
+    <DebuggerFlavor>WindowsLocalDebugger</DebuggerFlavor>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <LocalDebuggerWorkingDirectory>$(ProjectDir)/bin</LocalDebuggerWorkingDirectory>
+    <DebuggerFlavor>WindowsLocalDebugger</DebuggerFlavor>
+  </PropertyGroup>
+</Project>
\ No newline at end of file
diff --git a/src/avatar.cpp b/src/avatar.cpp
index 402824d..724a875 100644
--- a/src/avatar.cpp
+++ b/src/avatar.cpp
@@ -5,7 +5,7 @@
 //  Created by Sebastian Holzki on 17.04.19.
 //
 
-#include "avatar.hpp"
+#include "avatar.h"
 
 
 
diff --git a/src/avatar.hpp b/src/avatar.h
similarity index 98%
rename from src/avatar.hpp
rename to src/avatar.h
index ad125b0..b627077 100644
--- a/src/avatar.hpp
+++ b/src/avatar.h
@@ -1,5 +1,5 @@
 //
-//  avatar.hpp
+//  avatar.h
 //  emptyExample
 //
 //  Created by Sebastian Holzki on 17.04.19.
diff --git a/src/greatWhole.cpp b/src/greatWhole.cpp
index e426215..01f45fc 100644
--- a/src/greatWhole.cpp
+++ b/src/greatWhole.cpp
@@ -5,8 +5,8 @@
 //  Created by Sebastian Holzki on 17.04.19.
 //
 
-#include "greatWhole.hpp"
-#include "avatar.hpp"
+#include "greatWhole.h"
+#include "avatar.h"
 
 
 
diff --git a/src/greatWhole.hpp b/src/greatWhole.h
similarity index 95%
rename from src/greatWhole.hpp
rename to src/greatWhole.h
index fdcb95a..67556c2 100644
--- a/src/greatWhole.hpp
+++ b/src/greatWhole.h
@@ -1,5 +1,5 @@
 //
-//  greatWhole.hpp
+//  greatWhole.h
 //  emptyExample
 //
 //  Created by Sebastian Holzki on 17.04.19.
@@ -7,7 +7,7 @@
 
 #include <stdio.h>
 #include "ofMain.h"
-#include "avatar.hpp"
+#include "avatar.h"
 
 #pragma once
 
diff --git a/src/main.cpp b/src/main.cpp
index f73817a..9e844df 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -6,10 +6,12 @@
 int main( ){
 
 	ofSetupOpenGL(1000,1000, OF_WINDOW);			// <-------- setup the GL context
+	ofGLFWWindowSettings settings;
+	settings.setGLVersion(3, 2);
+	settings.setSize(1280, 800);
+	ofCreateWindow(settings);
 
-	// this kicks off the running of my app
-	// can be OF_WINDOW or OF_FULLSCREEN
-	// pass in width and height too:
+	ofRunApp(new ofApp());
 	ofRunApp( new ofApp());
 
 }
diff --git a/src/objectPhysics.cpp b/src/objectPhysics.cpp
index 089b6d3..6e3e52c 100644
--- a/src/objectPhysics.cpp
+++ b/src/objectPhysics.cpp
@@ -5,7 +5,7 @@
 //  Created by Sebastian Holzki on 11.06.19.
 //
 
-#include "objectPhysics.hpp"
+#include "objectPhysics.h"
 
 
 
diff --git a/src/objectPhysics.hpp b/src/objectPhysics.h
similarity index 92%
rename from src/objectPhysics.hpp
rename to src/objectPhysics.h
index 1e3cfe2..130c343 100644
--- a/src/objectPhysics.hpp
+++ b/src/objectPhysics.h
@@ -1,16 +1,16 @@
 //
-//  objectPhysics.hpp
+//  objectPhysics.h
 //  emptyExample
 //
 //  Created by Sebastian Holzki on 01.05.19.
 //
 
-#ifndef objectPhysics_hpp
-#define objectPhysics_hpp
+#ifndef objectPhysics_h
+#define objectPhysics_h
 
 #include <stdio.h>
 #include "ofMain.h"
-#endif /* objectPhysics_hpp */
+#endif /* objectPhysics_h */
 
 
 class ObjectPhysics {
diff --git a/src/ofApp.h b/src/ofApp.h
index 1259f1c..aa62592 100644
--- a/src/ofApp.h
+++ b/src/ofApp.h
@@ -1,17 +1,17 @@
 #pragma once
 
 #include "ofMain.h"
-#include "particleSystem.hpp"
-#include "greatWhole.hpp"
-#include "avatar.hpp"
+#include "particleSystem.h"
+#include "greatWhole.h"
+#include "avatar.h"
 #include "ofxOsc.h"
-#include "visitor.hpp"
-#include "objectPhysics.hpp"
-#include "particle.hpp"
+#include "visitor.h"
+#include "objectPhysics.h"
+#include "particle.h"
 
     
-    int WINDOWSIZE_WIDTH = 1000;
-    int WINDOWSIZE_HEIGHT = 1000;
+    //int WINDOWSIZE_WIDTH = 1000;
+    //int WINDOWSIZE_HEIGHT = 1000;
 
 
 
diff --git a/src/particle.cpp b/src/particle.cpp
index 1c51d0c..dbf2bd9 100644
--- a/src/particle.cpp
+++ b/src/particle.cpp
@@ -5,7 +5,7 @@
 //  Created by Sebastian Holzki on 16.04.19.
 //
 
-#include "particle.hpp"
+#include "particle.h"
 
 
 
diff --git a/src/particle.hpp b/src/particle.h
similarity index 97%
rename from src/particle.hpp
rename to src/particle.h
index 9f9ecf2..b366654 100644
--- a/src/particle.hpp
+++ b/src/particle.h
@@ -1,5 +1,5 @@
 //
-//  particle.hpp
+//  particle.h
 //
 //  Created by Sebastian Holzki on 16.04.19.
 //
diff --git a/src/particleSystem.cpp b/src/particleSystem.cpp
index 33110dc..617be0e 100644
--- a/src/particleSystem.cpp
+++ b/src/particleSystem.cpp
@@ -5,7 +5,7 @@
 //  Created by Sebastian Holzki on 16.04.19.
 //
 
-#include "particleSystem.hpp"
+#include "particleSystem.h"
 
 
 
diff --git a/src/particleSystem.hpp b/src/particleSystem.h
similarity index 95%
rename from src/particleSystem.hpp
rename to src/particleSystem.h
index 326fb5b..6eeb5e5 100644
--- a/src/particleSystem.hpp
+++ b/src/particleSystem.h
@@ -1,5 +1,5 @@
 //
-//  particleSystem.hpp
+//  particleSystem.h
 //  emptyExample
 //
 //  Created by Sebastian Holzki on 16.04.19.
@@ -10,7 +10,7 @@
 #include <stdio.h>
 
 
-#include "particle.hpp"
+#include "particle.h"
 
 
 
diff --git a/src/visitor.cpp b/src/visitor.cpp
index ef72087..93b7981 100644
--- a/src/visitor.cpp
+++ b/src/visitor.cpp
@@ -5,7 +5,7 @@
 //  Created by Sebastian Holzki on 11.06.19.
 //
 
-#include "visitor.hpp"
+#include "visitor.h"
 
 
 
diff --git a/src/visitor.hpp b/src/visitor.h
similarity index 97%
rename from src/visitor.hpp
rename to src/visitor.h
index af8c3fe..5974da6 100644
--- a/src/visitor.hpp
+++ b/src/visitor.h
@@ -1,5 +1,5 @@
 //
-//  visitor.hpp
+//  visitor.h
 //  particle_combined
 //
 //  Created by Sebastian Holzki on 11.06.19.