diff --git a/demo.cc b/demo.cc
index 513aafe..6b45eb5 100644
--- a/demo.cc
+++ b/demo.cc
@@ -22,6 +22,14 @@ bool T_Demo::initialise( )
 			dof->output( ) , bloom->output( ) );
 	fxaa = std::make_unique< T_FXAAPass >(
 			combine->output( ) );
+
+	Globals::Sync( ).clearInputs( );
+	Globals::Sync( ).addInput( "dof:sharp-distance" , 15 );
+	Globals::Sync( ).addInput( "dof:sharp-range" , 25 );
+	Globals::Sync( ).addInput( "dof:falloff" , 100 );
+	Globals::Sync( ).addInput( "dof:max-blur" , 16 );
+	Globals::Sync( ).addInput( "dof:samples" , 16 );
+
 	return true;
 }
 
diff --git a/dof.cc b/dof.cc
index 9cd506e..4538bbf 100644
--- a/dof.cc
+++ b/dof.cc
@@ -23,9 +23,7 @@ T_DoFPass::T_DoFPass(
 		txOutput_( imageInput.width( ) , imageInput.height( ) ,
 				E_TexType::RGB16F ) ,
 		rtPass1_( T_RendertargetSetup( ).add( txPass1_ ).create( ) ) ,
-		rtPass2_( T_RendertargetSetup( ).add( txOutput_ ).create( ) ) ,
-		filterParams_{ 15 , 25 , 100 , 16 } ,
-		nSamples_( 16 )
+		rtPass2_( T_RendertargetSetup( ).add( txOutput_ ).create( ) )
 {
 	txPass1_.wrap( E_TexWrap::CLAMP_EDGE );
 
@@ -65,13 +63,13 @@ void T_DoFPass::render( )
 		<< OPLoadVariable( "width" )
 		<< OPLoadConstant( U_RES_TIME )
 		<< OPDup( 8 )
-		<< OPLoadConstant( nSamples_ )
+		<< OPLoadInput( "dof:samples" )
 		<< OPLoadConstant( U_SAMPLES )
 		<< OPDup( 11 )
-		<< OPLoadConstant( filterParams_[ 3 ] )
-		<< OPLoadConstant( filterParams_[ 2 ] )
-		<< OPLoadConstant( filterParams_[ 1 ] )
-		<< OPLoadConstant( filterParams_[ 0 ] )
+		<< OPLoadInput( "dof:max-blur" )
+		<< OPLoadInput( "dof:falloff" )
+		<< OPLoadInput( "dof:sharp-distance" )
+		<< OPLoadInput( "dof:sharp-range" )
 		<< OPLoadConstant( U_PARAMS )
 		<< OPDup( 17 )
 		<< OPLoadConstant( 1 )
@@ -121,6 +119,7 @@ void T_DoFPass::render( )
 
 void T_DoFPass::makeUI( )
 {
+#if 0
 	if ( !ImGui::CollapsingHeader( "Depth of field" ) ) {
 		return;
 	}
@@ -131,4 +130,5 @@ void T_DoFPass::makeUI( )
 	ImGui::DragFloat( "Max blur" , &filterParams_[ 3 ] , .1 , .1 , 100 );
 
 	ImGui::DragInt( "Samples" , &nSamples_ , .2 , 1 , 32 );
+#endif
 }
diff --git a/dof.hh b/dof.hh
index ffd74ce..1a284d9 100644
--- a/dof.hh
+++ b/dof.hh
@@ -30,9 +30,5 @@ struct T_DoFPass
 
 	T_Texture txPass1_ , txOutput_;
 	T_Rendertarget rtPass1_ , rtPass2_;
-
-	// SharpDist/SharpRange/Falloff/MaxBlur
-	float filterParams_[ 4 ];
-	int nSamples_;
 };
 
diff --git a/sync.hh b/sync.hh
index 93f2d11..ab2fd18 100644
--- a/sync.hh
+++ b/sync.hh
@@ -160,6 +160,12 @@ struct T_SyncManager
 	// ---------------------------------------------------------------------
 	// Value access
 
+	void clearInputs( )
+		{ values_.clear( ); }
+	bool addInput( __rd__ std::string const& name ,
+			__rd__ const float initial = 0.f ) noexcept
+		{ return values_.addValue( name , initial ); }
+
 	uint32_t inputPos( __rd__ std::string const& name ) const noexcept
 		{ return values_.indexOf( name ); }
 	std::vector< float > const& inputs( ) const noexcept