diff --git a/control.hh b/control.hh
index 4cd7e3e..04c0bd4 100644
--- a/control.hh
+++ b/control.hh
@@ -29,6 +29,8 @@ enum E_OpType
 	OP_CONST ,
 	OP_OFFSET ,
 	//
+	OP_GET_INPUT ,
+	//
 	OP_FP_LOAD ,
 	OP_FP_STORE ,
 	OP_FP_SLOAD ,
diff --git a/demo.cc b/demo.cc
index 7986671..8fb8699 100644
--- a/demo.cc
+++ b/demo.cc
@@ -83,6 +83,15 @@ void T_Demo::render( )
 	}
 	playingPrevious = playing;
 
+	if ( context && !context->aborted ) {
+		try {
+			context->run(  ops::T_OpContext::R_RENDER , sync.time( ) , width , height );
+		} catch ( ops::X_OpFailure const& fail ) {
+			printf( "FAILED TO RUN FRAME!\n\t%s\n" , fail.what( ) );
+			context->aborted = true;
+		}
+	}
+
 #if 0
 	raymarcher->render( );
 	dof->render( );
@@ -200,5 +209,16 @@ void T_Demo::runInit( )
 		context->run( ops::T_OpContext::R_INIT , 0 , width , height );
 	} catch ( ops::X_OpFailure const& fail ) {
 		printf( "FAILED TO RUN INIT!\n\t%s\n" , fail.what( ) );
+		context->aborted = true;
+		return;
 	}
+
+	Globals::Sync( ).clearInputs( );
+	const auto n( context->initialInputs.size( ) );
+	assert( n == program->inputs.size( ) );
+	for ( auto i = 0u ; i < n ; i ++ ) {
+		Globals::Sync( ).addInput( program->inputs[ i ] ,
+				context->initialInputs[ i ] );
+	}
+	Globals::Sync( ).updateCurveCaches( );
 }
diff --git a/demo.srd b/demo.srd
index 76579d8..2f19931 100644
--- a/demo.srd
+++ b/demo.srd
@@ -98,7 +98,7 @@
 			(get-input raymarcher-max-dist)
 		)
 		(uniforms prg-scene-p1 7 (get-input fog))
-		(uniforms prg-scene-p1 8 (get-input raymarcher-correction))
+		(uniforms-i prg-scene-p1 8 (get-input raymarcher-correction))
 		(use-pipeline pl-scene-p1)
 		(use-framebuffer rt-scene)
 		(viewport 0 0 $vp-width $vp-height)
@@ -299,7 +299,7 @@
 	(use-framebuffer target)
 	(use-texture 0 tx-bloom1 smp-bloom-blur)
 	(uniforms prg-bloom-downsample 1 $w $h)
-	(uniforms prg-bloom-downsample 2 (sub $level 1))
+	(uniforms-i prg-bloom-downsample 2 (sub $level 1))
 	(viewport 0 0 $w $h)
 	(fullscreen)
 
@@ -309,7 +309,7 @@
 (fn bloom-blur-pass (lod fb1 fb2)
 	# Common stuff for both passes
 	(use-pipeline pl-bloom-blur)
-	(uniforms prg-bloom-blur 2 $lod)
+	(uniforms-i prg-bloom-blur 2 $lod)
 
 	# Pass 1
 	(use-framebuffer fb2)
diff --git a/opcomp.cc b/opcomp.cc
index 28c1369..9df2c73 100644
--- a/opcomp.cc
+++ b/opcomp.cc
@@ -740,6 +740,11 @@ bool T_CompilerImpl_::compileNode(
 
 	    case A_Node::EXPR_INPUT:
 		if ( !exit ) {
+			auto& in( (T_InputExprNode&) node );
+			assert( output->inputs.contains( in.id( ) ) );
+			addInstruction( OP_GET_INPUT ,
+					output->inputs.indexOf( in.id( ) ) ,
+					in.location( ) );
 		}
 		break;
 	}
diff --git a/ops.cc b/ops.cc
index db78837..fc46631 100644
--- a/ops.cc
+++ b/ops.cc
@@ -101,6 +101,7 @@ static T_KeyValueTable< E_OpType , T_OpInfo > OpInfoTable_{ ([]() {
 	infos.add( E_OpType::OP_CONST , T_OpInfo{ "const" , 1 } );
 	infos.add( E_OpType::OP_OFFSET , T_OpInfo{ "offset" , 1 } );
 	//
+	infos.add( E_OpType::OP_GET_INPUT , T_OpInfo{ "get-input" , 1 , OpStackFPU{ 1 } } );
 	infos.add( E_OpType::OP_FP_LOAD , T_OpInfo{ "fp-load" , 1 , OpStackFPU{ 1 } } );
 	infos.add( E_OpType::OP_FP_SLOAD , T_OpInfo{ "fp-load-stack" , 1 , OpStackFPU{ 1 } } );
 	infos.add( E_OpType::OP_FP_STORE , T_OpInfo{ "fp-store" , 1 , OpStackFPU{ -1 } } );
@@ -286,6 +287,20 @@ void T_OpContext::run(
 
 //#define YOUR_MUM_IS_A_TRACE
 #ifdef YOUR_MUM_IS_A_TRACE
+		GL_ASSERT( );
+		T_StringBuilder sb;
+		sb << "\nEXECUTE " << instrPtr << ":\t(" << instr << ") {"
+			<< instr.location << "}\nSTACK:";
+		for ( auto i = 0u ; i < stack.size( ) ; i ++ ) {
+			sb << ' ' << stack[ i ].u;
+		}
+		sb << "\nFPU STACK:";
+		for ( auto i = 0u ; i < x87sp ; i ++ ) {
+			sb << ' ' << x87stack[ i ];
+		}
+		sb << "\nWREG: " << wreg.f << '/' << wreg.u << '\n' << '\0';
+		printf( "%s" , sb.data( ) );
+
 		printf( "VALUES\n00" );
 		for ( auto i = 0u ; i < values.size( ) ; i ++ ) {
 			printf( "    %08x" , values[ i ].u );
@@ -296,19 +311,6 @@ void T_OpContext::run(
 		if ( values.size( ) % 4 != 0 ) {
 			printf( "\n" );
 		}
-
-		T_StringBuilder sb;
-		sb << "EXECUTE " << instrPtr << ":\t(" << instr << ") {"
-			<< instr.location << "}\nSTACK:";
-		for ( auto i = 0u ; i < stack.size( ) ; i ++ ) {
-			sb << ' ' << stack[ i ].u;
-		}
-		sb << "\nFPU STACK:";
-		for ( auto i = 0u ; i < x87sp ; i ++ ) {
-			sb << ' ' << x87stack[ i ];
-		}
-		sb << '\n' << '\0';
-		printf( "%s" , sb.data( ) );
 #endif
 
 		switch ( instr.op ) {
@@ -348,7 +350,7 @@ void T_OpContext::run(
 		    // --------------------------------------------------------------------------------
 
 		    case OP_RES_STACK:
-			stack.resize( stack.size( ) + instr.args[ 0 ] );
+			stack.resize( stack.size( ) + instr.args[ 0 ] + 1 );
 			break;
 
 		    case OP_PUSH:
@@ -389,6 +391,11 @@ void T_OpContext::run(
 
 		    // --------------------------------------------------------------------------------
 
+		    case OP_GET_INPUT:
+			ensureFpuStack( instr , 0 , 1 );
+			x87stack[ x87sp ++ ] = Globals::Sync( ).inputs( )[ instr.args[ 0 ] + 1 ];
+			break;
+
 		    case OP_FP_LOAD:
 			ensureFpuStack( instr , 0 , 1 );
 			checkAddress( instr , instr.args[ 0 ] );
@@ -822,7 +829,7 @@ void T_OpContext::run(
 			if ( sv == 0 ) {
 				glBindFramebuffer( GL_FRAMEBUFFER , 0 );
 				curFb = -1;
-				return;
+				break;
 			}
 
 			const auto index( sv - 1 );