diff --git a/scene/CMakeLists.txt b/scene/CMakeLists.txt
index 26e6770..f2ddb7e 100644
--- a/scene/CMakeLists.txt
+++ b/scene/CMakeLists.txt
@@ -44,16 +44,21 @@ set( sources
     "visitor/render_visitor.cpp"
     "visitor/trafo_visitor.h"
     "visitor/trafo_visitor.cpp"
+    "visitor/variable_update_visitor.h"
+    "visitor/variable_update_visitor.cpp"
 
     "component/icomponent.h"
     "component/code_component.h"
     "component/code_component.cpp"
     "component/name_component.hpp"
-
+    
     "component/msl_component.h"
     "component/msl_component.cpp"
     "component/render_state_component.h"
     "component/render_state_component.cpp"
+    
+    "component/render_variables_component.hpp"
+    "component/variables_component.hpp"
     )
 
 motor_vs_src_dir( sources )
diff --git a/scene/component/icomponent.h b/scene/component/icomponent.h
index 8ac717c..dcd4b80 100644
--- a/scene/component/icomponent.h
+++ b/scene/component/icomponent.h
@@ -5,6 +5,8 @@
 #include "../typedefs.h"
 #include "../protos.h"
 
+#include "../ivisitable.hpp"
+
 namespace motor
 {
     namespace scene
diff --git a/scene/component/render_variables_component.hpp b/scene/component/render_variables_component.hpp
new file mode 100644
index 0000000..e69de29
diff --git a/scene/component/variables_component.hpp b/scene/component/variables_component.hpp
new file mode 100644
index 0000000..0eef06b
--- /dev/null
+++ b/scene/component/variables_component.hpp
@@ -0,0 +1,26 @@
+
+
+#pragma once
+
+
+#include "icomponent.h"
+
+#include "../global.h"
+
+namespace motor
+{
+    namespace scene
+    {
+        class variables_component : public motor::scene::icomponent
+        {
+            typedef icomponent base_t ;
+            motor_this_typedefs( variables_component ) ;
+
+        public:
+
+
+        };
+        motor_typedef( variables_component ) ;
+
+    }
+}
\ No newline at end of file
diff --git a/scene/global.cpp b/scene/global.cpp
index 2937fb8..d1957ca 100644
--- a/scene/global.cpp
+++ b/scene/global.cpp
@@ -10,6 +10,7 @@
 #include "visitor/trafo_visitor.h"
 #include "visitor/log_visitor.h"
 #include "visitor/render_visitor.h"
+#include "visitor/variable_update_visitor.h"
 
 using namespace motor::scene ;
 
@@ -35,6 +36,9 @@ void_t global::init( void_t ) noexcept
     this_t::register_default_callbacks< motor::scene::render_visitor, motor::scene::trafo3d_node >() ;
     this_t::register_default_callbacks< motor::scene::render_visitor, motor::scene::render_settings >() ;
     this_t::register_default_callbacks< motor::scene::render_visitor, motor::scene::render_node >() ;
+
+    //this_t::register_default_callbacks< motor::scene::variable_update_visitor, motor::scene::group >() ;
+    //this_t::register_default_callbacks< motor::scene::variable_update_visitor, motor::scene::leaf >() ;
 }
 
 //***********************************************************************
diff --git a/scene/ivisitable.hpp b/scene/ivisitable.hpp
index 9cf3ec2..3afd880 100644
--- a/scene/ivisitable.hpp
+++ b/scene/ivisitable.hpp
@@ -1,4 +1,6 @@
 
+#pragma once
+
 #include "api.h"
 #include "double_dispatch.h"
 
diff --git a/scene/node/node.cpp b/scene/node/node.cpp
index 6229437..a0e2f80 100644
--- a/scene/node/node.cpp
+++ b/scene/node/node.cpp
@@ -5,6 +5,8 @@
 
 using namespace motor::scene ;
 
+motor_core_dd_id_init( node ) ;
+
 //*******************************************************************
 node::traverser::traverser( node_ptr_t begin ) noexcept :_traverse( begin )
 {
@@ -63,7 +65,7 @@ node::~node( void_t ) noexcept
 
 //*******************************************************************
 motor::scene::result node::apply( motor::scene::ivisitor_ptr_t v ) noexcept
-{
+{   
     return v->visit( this ) ;
 }
 
diff --git a/scene/node/node.h b/scene/node/node.h
index c09d029..d3ef838 100644
--- a/scene/node/node.h
+++ b/scene/node/node.h
@@ -6,6 +6,8 @@
 #include "../protos.h"
 #include "../ivisitable.hpp"
 
+#include <motor/wire/variable.hpp>
+
 #include <motor/std/vector>
 #include <motor/core/double_dispatch.hpp>
 
@@ -16,6 +18,7 @@ namespace motor
         class MOTOR_SCENE_API node : public motor::scene::ivisitable
         {
             motor_this_typedefs( node ) ;
+            motor_core_dd_id_fn() ;
 
         private:
 
diff --git a/scene/protos.h b/scene/protos.h
index 8d93b7d..81605a3 100644
--- a/scene/protos.h
+++ b/scene/protos.h
@@ -23,5 +23,8 @@ namespace motor
 
         motor_class_proto_typedefs( ivisitor ) ;
         motor_class_proto_typedefs( icomponent ) ;
+
+        motor_class_proto_typedefs( variables_component ) ;
+        motor_class_proto_typedefs( render_variables_component ) ;
     }
 }
diff --git a/scene/visitor/variable_update_visitor.cpp b/scene/visitor/variable_update_visitor.cpp
new file mode 100644
index 0000000..946ae87
--- /dev/null
+++ b/scene/visitor/variable_update_visitor.cpp
@@ -0,0 +1,40 @@
+
+#include "variable_update_visitor.h"
+
+#include "../component/variables_component.hpp"
+#include "../node/node.h"
+
+using namespace motor::scene ;
+
+motor_core_dd_id_init( variable_update_visitor ) ;
+
+//*************************************************************************************************
+variable_update_visitor::variable_update_visitor( void_t ) noexcept 
+{
+}
+
+//*************************************************************************************************
+variable_update_visitor::~variable_update_visitor( void_t ) noexcept 
+{
+}
+
+//*************************************************************************************************
+motor::scene::result variable_update_visitor::visit( motor::scene::ivisitable_ptr_t vable ) noexcept
+{
+    if( auto * n = dynamic_cast< motor::scene::node_ptr_t >( vable ); n != nullptr )
+    {
+        auto * comp = n->borrow_component< motor::scene::variables_component_t >() ;
+        // make stuff with variables
+
+        return motor::scene::result::ok ;
+    }
+
+    //variables_component_ptr_t
+    return motor::scene::result::ok ;
+}
+
+//*************************************************************************************************
+motor::scene::result variable_update_visitor::post_visit( motor::scene::ivisitable_ptr_t, motor::scene::result const ) noexcept
+{
+    return motor::scene::result::ok ;
+}
\ No newline at end of file
diff --git a/scene/visitor/variable_update_visitor.h b/scene/visitor/variable_update_visitor.h
new file mode 100644
index 0000000..16a6898
--- /dev/null
+++ b/scene/visitor/variable_update_visitor.h
@@ -0,0 +1,29 @@
+
+#pragma once
+
+#include "ivisitor.h"
+
+namespace motor
+{
+    namespace scene
+    {
+        class MOTOR_SCENE_API variable_update_visitor : public ivisitor
+        {
+            motor_this_typedefs( variable_update_visitor ) ;
+            motor_core_dd_id_fn() ;
+
+        public:
+
+            variable_update_visitor( void_t ) noexcept ;
+            virtual ~variable_update_visitor( void_t ) noexcept ;
+
+        public:
+
+
+
+            virtual motor::scene::result visit( motor::scene::ivisitable_ptr_t ) noexcept ;
+            virtual motor::scene::result post_visit( motor::scene::ivisitable_ptr_t, motor::scene::result const ) noexcept ;
+        };
+        motor_typedef( variable_update_visitor ) ;
+    }
+}
\ No newline at end of file
diff --git a/tool/imgui/node_kit/imgui_node_component.cpp b/tool/imgui/node_kit/imgui_node_component.cpp
index 076b847..41ad41b 100644
--- a/tool/imgui/node_kit/imgui_node_component.cpp
+++ b/tool/imgui/node_kit/imgui_node_component.cpp
@@ -3,6 +3,7 @@
 
 using namespace motor::tool ;
 
+
 //**************************************************************************
 imgui_node_component::imgui_node_component( void_t ) noexcept 
 {
diff --git a/wire/CMakeLists.txt b/wire/CMakeLists.txt
index 841c41f..46c91ba 100644
--- a/wire/CMakeLists.txt
+++ b/wire/CMakeLists.txt
@@ -21,6 +21,7 @@ set( SOURCES ${SOURCES}
     "slot/sheet.hpp"
     "slot/other_slot.hpp"
 
+    "variables/variable_set.hpp"
     "variables/vector_variables.hpp"
     "variables/trafo_variables.hpp"
     )
diff --git a/wire/variables/variable_set.hpp b/wire/variables/variable_set.hpp
new file mode 100644
index 0000000..3048a60
--- /dev/null
+++ b/wire/variables/variable_set.hpp
@@ -0,0 +1,85 @@
+
+#pragma once
+
+#include "../api.h"
+#include "../typedefs.h"
+#include "../variable.hpp"
+
+#include <motor/std/vector>
+
+namespace motor
+{
+    namespace wire
+    {
+        class MOTOR_WIRE_API variable_set 
+        {
+            motor_this_typedefs( variable_set ) ;
+
+        public:
+
+            using pull_data_funk_t = std::function< void_t ( void_ptr_t, motor::wire::any_ptr_t ) > ;
+
+        private:
+
+            struct per_var_data
+            {
+                pull_data_funk_t funk ;
+                motor::wire::any_mtr_t var ;
+            };
+            motor::vector< this_t::per_var_data > _variables ;
+
+        public:
+
+            variable_set( void_t ) noexcept {}
+
+            variable_set( this_rref_t rhv ) noexcept : 
+                _variables( std::move( rhv._variables ) ){}
+
+            variable_set( this_cref_t ) = delete ;
+            
+            ~variable_set( void_t ) noexcept 
+            {
+                for( auto & d : _variables ) motor::release( motor::move( d.var ) ) ;
+            }
+
+        public:
+
+            using for_each_variable_funk_t = std::function< void_t ( motor::wire::any_mtr_t ) > ;
+
+            void_t for_each( for_each_variable_funk_t funk ) noexcept 
+            {
+                for( auto & d : _variables )
+                {
+                    funk( d.var ) ;
+                }
+            }
+            
+            // call the pull function for each variable
+            template< typename T >
+            void_t pull_from_each( T * owner ) noexcept
+            {
+                for( auto & d : _variables )
+                {
+                    d.funk( reinterpret_cast< void_ptr_t >( owner ), d.var ) ;
+                }
+            }
+
+        public:
+
+            // add a variable which should interface with some other variable
+            // the pull function allows to "pull" the data from the any variable
+            // and update the other variable which is not interfaceable.
+            void_t add_variable( pull_data_funk_t funk, motor::wire::any_mtr_safe_t v ) noexcept 
+            {
+                for( auto & d : _variables ) 
+                    if( d.var == v ) 
+                    {
+                        motor::release( v ) ;
+                        return ;
+                    }
+
+                _variables.emplace_back( this_t::per_var_data { funk, motor::move( v ) } ) ;
+            }
+        };
+    }
+}
\ No newline at end of file