diff --git a/CMakeLists.txt b/CMakeLists.txt
index b6c2321..824ff7c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,9 +5,26 @@ cmake_minimum_required(VERSION 3.8)
 
 project(pixwerx)
 
-set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/etc/cmake")
-
+#
+# pixwerx ist C++17
+#
 set (CMAKE_CXX_STANDARD 17)
 
+# internal cmake modules
+set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/etc/cmake ${CMAKE_MODULE_PATH})
+
+# boilerplate locations for build
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin CACHE PATH "Executables go here")
+set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib CACHE PATH "Libraries go here")
+set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin CACHE PATH "Standalone DLLs go here")
+
+# boilerplate settings for shared libs
+set(CMAKE_SKIP_BUILD_RPATH OFF)
+set(CMAKE_POSITION_INDEPENDENT_CODE ON)
+
+
+#
+# now the actual code
+#
 add_subdirectory(src)
 add_subdirectory(share)
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index b323010..dccf5cc 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -11,18 +11,18 @@ set(hdrs
     include/pw/core/serialize.hpp
     include/pw/core/image.hpp
     include/pw/core/point.hpp
-	include/pw/core/rect.hpp
-	include/pw/core/size.hpp
+    include/pw/core/rect.hpp
+    include/pw/core/size.hpp
     include/pw/core/timer.hpp
-	include/pw/core/mesh.hpp
+    include/pw/core/mesh.hpp
     include/pw/core/globals.hpp
     )
 
 set(srcs
-	src/buffer.cpp
+    src/buffer.cpp
     src/image.cpp
     src/debug.cpp
-	src/mesh.cpp
+    src/mesh.cpp
     src/core.cpp
     src/serialize.cpp
     src/timer.cpp
diff --git a/src/core/include/pw/core/timer.hpp b/src/core/include/pw/core/timer.hpp
index e32c2cb..7d5f4ef 100644
--- a/src/core/include/pw/core/timer.hpp
+++ b/src/core/include/pw/core/timer.hpp
@@ -23,7 +23,6 @@
 #ifndef PW_CORE_TIMER_HPP_
 #define PW_CORE_TIMER_HPP_
 
-
 #include <pw/core/globals.hpp>
 
 #include <chrono>
@@ -36,10 +35,6 @@ namespace pw {
 class timer {
 public:
 
-    const static unsigned int UnitMicroSeconds = 1000000;
-    const static unsigned int UnitMilliSeconds = 1000;
-    const static unsigned int UnitSeconds = 1;
-
 	typedef std::chrono::time_point<std::chrono::high_resolution_clock> tick_t;
 
 	timer(); /// c'tor
@@ -49,17 +44,15 @@ public:
 
     /**
      * @brief elapsed time based on the scale
-     * @param scale units the time will be reported
      * @return value of the time since last @see reset
      */
-    double elapsed(unsigned int scale = UnitMilliSeconds) const;
+    double elapsed() const;
 
     /**
-     * @brief Now
-     * @param scale
-     * @return
+     * @brief time from start of core in seconds
+     * @return time in seconds
      */
-    static double now(unsigned int scale = UnitMicroSeconds);
+    static double now();
 
 protected:
 
diff --git a/src/core/src/timer.cpp b/src/core/src/timer.cpp
index 6f1e405..16ae81e 100644
--- a/src/core/src/timer.cpp
+++ b/src/core/src/timer.cpp
@@ -1,13 +1,27 @@
-/* vim: set tabstop=4:softtabstop=4:shiftwidth=4:noexpandtab */
 /*
- * SSTT - Simplified Spatial Target Tracker
+ * Copyright (c) 1999-2019 Hartmut Seichter
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
  *
- * (c) Copyrights 2007-2018 Hartmut Seichter
  */
-
 #include "pw/core/timer.hpp"
 
-
 namespace pw {
 
 static timer global_timer;
@@ -26,15 +40,15 @@ void timer::reset()
     _start = std::chrono::high_resolution_clock::now();
 }
 
-double timer::elapsed( unsigned int scale ) const
+double timer::elapsed() const
 {
     std::chrono::duration<double> elapsed_seconds = std::chrono::high_resolution_clock::now() - _start;
-    return elapsed_seconds.count() * scale;
+    return elapsed_seconds.count();
 }
 
-double timer::now( unsigned int scale )
+double timer::now()
 {
-	return global_timer.elapsed(scale);
+    return global_timer.elapsed();
 }
 
 }
diff --git a/src/scripting/src/script_core.cpp b/src/scripting/src/script_core.cpp
index d9c538a..668d7d7 100644
--- a/src/scripting/src/script_core.cpp
+++ b/src/scripting/src/script_core.cpp
@@ -6,6 +6,7 @@
 #include "pw/core/debug.hpp"
 #include "pw/core/size.hpp"
 #include "pw/core/point.hpp"
+#include "pw/core/timer.hpp"
 
 
 namespace pw {
@@ -13,69 +14,76 @@ namespace pw {
 void script_core::load(sol::table &ns)
 {
 
-	typedef real_t Scalar;
+    typedef real_t Scalar;
 
-	ns.set("pi",pw::pi<Scalar>());
+    ns.set("pi",pw::pi<Scalar>());
 
 
-	ns.new_usertype<vector3>("vector3",
-							 sol::constructors<vector3(), vector3(Scalar,Scalar,Scalar)>(),
-							 "set",&vector3::set,
-							 "x", scripting::property(scripting::resolve<const Scalar&() const>(&vector3::x), &vector3::set_x),
-							 "y", scripting::property(scripting::resolve<const Scalar&() const>(&vector3::y), &vector3::set_y),
-							 "z", scripting::property(scripting::resolve<const Scalar&() const>(&vector3::z), &vector3::set_z),
-							 "norm",&vector3::norm,
-							 "cross",&vector3::cross,
-							 "dot",&vector3::dot,
-							 //									  sol::meta_function::addition, sol::resolve<vector3(const vector3&, const vector3&)>(::operator+),
-							 //									  sol::meta_function::subtraction, &vector3::operator-
-							 //                                      "v",&vector3::values,
-							 "clone",&vector3::clone
-							 );
+    ns.new_usertype<vector3>("vector3",
+                             sol::constructors<vector3(), vector3(Scalar,Scalar,Scalar)>(),
+                             "set",&vector3::set,
+                             "x", scripting::property(scripting::resolve<const Scalar&() const>(&vector3::x), &vector3::set_x),
+                             "y", scripting::property(scripting::resolve<const Scalar&() const>(&vector3::y), &vector3::set_y),
+                             "z", scripting::property(scripting::resolve<const Scalar&() const>(&vector3::z), &vector3::set_z),
+                             "norm",&vector3::norm,
+                             "cross",&vector3::cross,
+                             "dot",&vector3::dot,
+                             //									  sol::meta_function::addition, sol::resolve<vector3(const vector3&, const vector3&)>(::operator+),
+                             //									  sol::meta_function::subtraction, &vector3::operator-
+                             //                                      "v",&vector3::values,
+                             "clone",&vector3::clone
+                             );
 
-	ns.new_usertype<quaternion>("quaternion",
-								sol::constructors<quaternion(), quaternion(Scalar,Scalar,Scalar,Scalar)>(),
-								"set",&quaternion::set,
-								"x", scripting::property(scripting::resolve<const Scalar&() const>(&quaternion::x), &quaternion::set_x),
-								"y", scripting::property(scripting::resolve<const Scalar&() const>(&quaternion::y), &quaternion::set_y),
-								"z", scripting::property(scripting::resolve<const Scalar&() const>(&quaternion::z), &quaternion::set_z),
-								"w", scripting::property(scripting::resolve<const Scalar&() const>(&quaternion::w), &quaternion::set_w),
-								"dot",&quaternion::dot,
-								"inverse",scripting::readonly_property(&quaternion::inverse),
-								"normalized",&quaternion::normalized,
-								"lerp",&quaternion::lerp,
-								"slerp",&quaternion::slerp
-								//                                      "v",&vector3d::values,
-								//                                      "clone",&vector3d::clone
-								);
+    ns.new_usertype<quaternion>("quaternion",
+                                sol::constructors<quaternion(), quaternion(Scalar,Scalar,Scalar,Scalar)>(),
+                                "set",&quaternion::set,
+                                "x", scripting::property(scripting::resolve<const Scalar&() const>(&quaternion::x), &quaternion::set_x),
+                                "y", scripting::property(scripting::resolve<const Scalar&() const>(&quaternion::y), &quaternion::set_y),
+                                "z", scripting::property(scripting::resolve<const Scalar&() const>(&quaternion::z), &quaternion::set_z),
+                                "w", scripting::property(scripting::resolve<const Scalar&() const>(&quaternion::w), &quaternion::set_w),
+                                "dot",&quaternion::dot,
+                                "inverse",scripting::readonly_property(&quaternion::inverse),
+                                "normalized",&quaternion::normalized,
+                                "lerp",&quaternion::lerp,
+                                "slerp",&quaternion::slerp
+                                //                                      "v",&vector3d::values,
+                                //                                      "clone",&vector3d::clone
+                                );
 
-	ns.new_usertype<axisangle>("axisangle",
-							   sol::constructors<axisangle(), axisangle(vector3,Scalar)>(),
-							   "axis",scripting::property(&axisangle::axis,&axisangle::set_axis),
-							   "angle",scripting::property(&axisangle::angle,&axisangle::set_angle)
-							   );
+    ns.new_usertype<axisangle>("axisangle",
+                               sol::constructors<axisangle(), axisangle(vector3,Scalar)>(),
+                               "axis",scripting::property(&axisangle::axis,&axisangle::set_axis),
+                               "angle",scripting::property(&axisangle::angle,&axisangle::set_angle)
+                               );
 
 
-	ns.new_usertype<size>("size",
-						  sol::constructors<size(),size(Scalar,Scalar)>(),
-						  "width",&size::width,
-						  "height",&size::height
-						  //						   "none",sol::debug::level::none
-						  );
+    ns.new_usertype<size>("size",
+                          sol::constructors<size(),size(Scalar,Scalar)>(),
+                          "width",&size::width,
+                          "height",&size::height
+                          //						   "none",sol::debug::level::none
+                          );
 
-	ns.new_usertype<point>("point",
-						   sol::constructors<point(),point(Scalar,Scalar)>(),
-						   "x",&point::x,
-						   "y",&point::y
-						   );
+    ns.new_usertype<point>("point",
+                           sol::constructors<point(),point(Scalar,Scalar)>(),
+                           "x",&point::x,
+                           "y",&point::y
+                           );
 
 
-	ns.new_usertype<debug>("debug",
-						   "new",sol::no_constructor,
-						   "get",&debug::get,
-						   "write",&debug::write
-						   //						   "none",sol::debug::level::none
-						   );
+    ns.new_usertype<debug>("debug",
+                           "new",sol::no_constructor,
+                           "get",&debug::get,
+                           "write",&debug::write
+                           //						   "none",sol::debug::level::none
+                           );
+
+
+    ns.new_usertype<timer>("timer",
+                           "now",sol::readonly_property(&timer::now),
+                           "elapsed",sol::readonly_property(&timer::elapsed),
+                           "reset",&timer::reset
+                           );
 
 }
 
diff --git a/src/scripting/src/script_system.cpp b/src/scripting/src/script_system.cpp
index 07dcc23..f838ebe 100644
--- a/src/scripting/src/script_system.cpp
+++ b/src/scripting/src/script_system.cpp
@@ -5,7 +5,7 @@
 #include "pw/system/display.hpp"
 
 // hijacking
-#include "pw/visual/pipeline.hpp"
+//#include "pw/visual/pipeline.hpp"
 
 namespace pw {
 
@@ -13,6 +13,7 @@ void script_system::load(sol::table &ns)
 {
 	ns.new_usertype<window>("window",
 							"update",&window::update,
+                            "set_on_update",&window::set_on_update,
 							"title",sol::writeonly_property(&window::set_title),
 							"size",sol::property(&window::size,&window::set_size),
 							"position",sol::property(&window::position,&window::set_position),
@@ -33,9 +34,16 @@ void script_system::load(sol::table &ns)
 							 "name",sol::readonly_property(&display::name)
 							 );
 
-	ns.new_usertype<pipeline>("pipeline",
-							  "create",&pipeline::create
-							  );
+
+//    ns.set_function("my_class_func_2", &my_class::func);
+
+
+    //
+//    // hijack part
+//    //
+//	ns.new_usertype<pipeline>("pipeline",
+//                              "create",&pipeline::create
+//							  );
 }
 
 }
diff --git a/src/scripts/demos/simple_000.lua b/src/scripts/demos/simple_000.lua
index 3261fcf..89763b5 100644
--- a/src/scripts/demos/simple_000.lua
+++ b/src/scripts/demos/simple_000.lua
@@ -71,13 +71,17 @@ local w = pw.window.new()
 w.title = "pixwerx 0.1"
 
 -- set size
-w.size = pw.size.new(1200,800)
+w.size = pw.size.new(800,600)
+-- move window
+w.position = pw.point.new(100,100)
 
 local ds = pw.display:all()
 for i = 1,#ds do
     print("display ",i,ds[i].name)
 end
 
+local t = pw.timer.new()
+
 while w:update()
 do
     -- somehow works
@@ -87,6 +91,8 @@ do
 
     -- just to check
     if (pw.input:get().mouse_button == 1) then
+            print("elapsed",t.elapsed)
+            t:reset()
 	    print(pw.input:get().mouse_position.x,pw.input:get().mouse_position.y)
 	end
 
diff --git a/src/system/include/pw/system/window.hpp b/src/system/include/pw/system/window.hpp
index 8244e75..176bcc2 100644
--- a/src/system/include/pw/system/window.hpp
+++ b/src/system/include/pw/system/window.hpp
@@ -5,11 +5,15 @@
 #include <pw/core/size.hpp>
 #include <pw/core/point.hpp>
 
+#include <functional>
+
 namespace pw {
 
 class window {
 public:
 
+    typedef std::function<void(window&)> on_update_t;
+
     window();
     ~window();
 
@@ -28,9 +32,12 @@ public:
     bool fullscreen() const;
     void set_fullscreen(bool use_fullscreen);
 
+    void set_on_update(on_update_t f) { _on_update = f; }
 
 protected:
 
+    on_update_t _on_update;
+
 	struct impl;
 	std::unique_ptr<impl> _impl;
 
diff --git a/src/system/src/window.cpp b/src/system/src/window.cpp
index 3350f41..336327f 100644
--- a/src/system/src/window.cpp
+++ b/src/system/src/window.cpp
@@ -39,6 +39,8 @@ namespace pw {
 
 struct window::impl {
 
+    window& _parent;
+
     GLFWwindow *_window = nullptr;
 
     sizei _old_size;
@@ -125,7 +127,8 @@ struct window::impl {
 
 	}
 
-    impl()
+    impl(window& w)
+        : _parent(w)
     {
 		// initialize
         glfwInit();
@@ -190,6 +193,9 @@ struct window::impl {
             // get new events
             glfwPollEvents();
 
+            _parent._on_update(_parent);
+
+
             // do other stuff
 #if 0
             glClearColor(1,0,0,1);
@@ -270,7 +276,8 @@ struct window::impl {
 
 
 window::window()
-    : _impl(std::make_unique<window::impl>())
+    : _impl(std::make_unique<window::impl>(*this))
+    , _on_update([](window&){})
 {
 }
 
diff --git a/src/visual/include/pw/visual/context.hpp b/src/visual/include/pw/visual/context.hpp
index 089bb02..a8aeb64 100644
--- a/src/visual/include/pw/visual/context.hpp
+++ b/src/visual/include/pw/visual/context.hpp
@@ -33,7 +33,7 @@ public:
 
 	virtual bool make_current() = 0;
 	virtual void resize() = 0;
-	virtual size size() = 0;
+    virtual ::pw::size size() = 0;
 	virtual void flush() = 0;
 
 	virtual ~context() = default;
diff --git a/src/visual/include/pw/visual/pipeline.hpp b/src/visual/include/pw/visual/pipeline.hpp
index fbb5ea3..3c60c05 100644
--- a/src/visual/include/pw/visual/pipeline.hpp
+++ b/src/visual/include/pw/visual/pipeline.hpp
@@ -13,7 +13,7 @@ class pipeline {
 
 public:
 	pipeline();
-	~pipeline() = default;
+    ~pipeline();
 
 	void draw();
 
diff --git a/src/visual/src/pipeline.cpp b/src/visual/src/pipeline.cpp
index 800ccfe..06dadae 100644
--- a/src/visual/src/pipeline.cpp
+++ b/src/visual/src/pipeline.cpp
@@ -99,6 +99,11 @@ pipeline::pipeline()
 {
 }
 
+pipeline::~pipeline()
+{
+    //
+}
+
 bool pipeline::create(size s)
 {
 	return _impl->create(sizei(s.width,s.height));