diff --git a/demo.srd b/demo.srd
index 7f603ff..f239546 100644
--- a/demo.srd
+++ b/demo.srd
@@ -40,7 +40,7 @@
 	}
 
 	(program prg-scene-p1 "scene.f.glsl")
-	# NOT IMPLEMENTED (set-uniforms prg-scene-p1 1 $vp-width $vp-height)
+	(uniforms prg-scene-p1 1 $vp-width $vp-height)
 	(pipeline pl-scene-p1 prg-fullscreen prg-scene-p1)
 
 	{ NOT IMPLEMENTED
@@ -51,30 +51,28 @@
 
 (fn scene-main ()
 	(profiling "Scene render"
-		{ NOT IMPLEMENTED
-			(set-uniforms prg-scene-p1 0 $time)
-			(set-uniforms prg-scene-p1 2
-				(get-input "camera-pos-x")
-				(get-input "camera-pos-y")
-				(get-input "camera-pos-z")
-			)
-			(set-uniforms prg-scene-p1 3
-				(get-input "camera-lookat-x")
-				(get-input "camera-lookat-y")
-				(get-input "camera-lookat-z")
-			)
-			(set-uniforms prg-scene-p1 4
-				(get-input "camera-up-x")
-				(get-input "camera-up-y")
-				(get-input "camera-up-z")
-			)
-			(set-uniforms prg-scene-p1 5
-				(get-input "camera-nearplane")
-			)
-			# FIXME MOAR UNIFORMS!
-			(use-pipeline pl-scene-p1)
-			(use-framebuffer rt-scene)
-		}
+		(uniforms prg-scene-p1 0 $time)
+		(uniforms prg-scene-p1 2
+			(get-input camera-pos-x)
+			(get-input camera-pos-y)
+			(get-input camera-pos-z)
+		)
+		(uniforms prg-scene-p1 3
+			(get-input camera-lookat-x)
+			(get-input camera-lookat-y)
+			(get-input camera-lookat-z)
+		)
+		(uniforms prg-scene-p1 4
+			(get-input camera-up-x)
+			(get-input camera-up-y)
+			(get-input camera-up-z)
+		)
+		(uniforms prg-scene-p1 5
+			(get-input camera-nearplane)
+		)
+		# FIXME MOAR UNIFORMS!
+		(use-pipeline pl-scene-p1)
+		(use-framebuffer rt-scene)
 		(viewport 0 0 $vp-width $vp-height)
 		(fullscreen)
 	)
@@ -116,12 +114,10 @@
 	# Programs
 	(program prg-dof-pass1 "dof-pass1.f.glsl")
 	(program prg-dof-pass2 "dof-pass2.f.glsl")
-	{ NOT IMPLEMENTED
-		(set-uniforms-integer prg-dof-pass1 0 1)
-		(set-uniforms-integer prg-dof-pass1 1 1)
-		(set-uniforms-integer prg-dof-pass2 0 1)
-		(set-uniforms-integer prg-dof-pass2 1 1)
-	}
+	(uniforms-i prg-dof-pass1 0 1)
+	(uniforms-i prg-dof-pass1 1 1)
+	(uniforms-i prg-dof-pass2 0 1)
+	(uniforms-i prg-dof-pass2 1 1)
 
 	# Pipelines
 	(pipeline pl-dof-pass1 prg-fullscreen prg-dof-pass1)
@@ -147,16 +143,14 @@
 )
 
 (fn dof-set-uniforms (prog)
-	{ NOT IMPLEMENTED
-		(set-uniforms prog 2
-			(get-input dof-sharp-distance)
-			(get-input dof-sharp-range)
-			(get-input dof-falloff)
-			(get-input dof-max-blur)
-		)
-		(set-uniforms prog 3 (get-input dof-samples))
-		(set-uniforms prog 4 $vp-width $vp-height $time)
-	}
+	(uniforms prog 2
+		(get-input dof-sharp-distance)
+		(get-input dof-sharp-range)
+		(get-input dof-falloff)
+		(get-input dof-max-blur)
+	)
+	(uniforms prog 3 (get-input dof-samples))
+	(uniforms prog 4 $vp-width $vp-height $time)
 )
 
 (fn dof-main (in-image in-depth)
diff --git a/opast.cc b/opast.cc
index b6437c5..e71f223 100644
--- a/opast.cc
+++ b/opast.cc
@@ -171,6 +171,16 @@ A_Node* opast::ASTVisitorBrowser(
 		break;
 	    }
 
+	    // Uniforms instruction
+	    case A_Node::OP_UNIFORMS:
+	    {
+		    auto& n( (T_UniformsInstrNode&) node );
+		    if ( child < n.values( ) ) {
+			    return &n.value( child );
+		    }
+		    break;
+	    }
+
 	    // Viewport instruction
 	    case A_Node::OP_VIEWPORT:
 	    {
diff --git a/opast.hh b/opast.hh
index 092b833..6cac424 100644
--- a/opast.hh
+++ b/opast.hh
@@ -1,7 +1,4 @@
 #pragma once
-#ifndef REAL_BUILD
-# include "externals.hh"
-#endif
 #include "texture.hh"
 #include <ebcl/SRDData.hh>
 
@@ -32,6 +29,7 @@ class A_Node
 		OP_PROGRAM ,	// Shader program declaration
 		OP_SET ,	// Set instruction
 		OP_TEXTURE ,	// Define texture
+		OP_UNIFORMS ,	// Set uniforms
 		OP_VIEWPORT ,	// Set viewport
 		// "Use-<obj type>" instructions
 		OP_USE_FRAMEBUFFER ,
@@ -580,6 +578,53 @@ class T_TextureInstrNode : public A_InstructionNode
 		{ return *height_; }
 };
 
+// Uniform setting instruction
+class T_UniformsInstrNode : public A_InstructionNode
+{
+    private:
+	bool integers_;
+	T_String progId_;
+	T_SRDLocation progIdLocation_;
+	uint32_t uloc_;
+	T_SRDLocation ulocLocation_;
+	T_StaticArray< P_ExpressionNode , 4 > values_;
+
+    public:
+	T_UniformsInstrNode( T_InstrListNode& parent ,
+			const bool integers ,
+			T_SRDToken const& prog ,
+			T_SRDToken const& loc ) noexcept
+		: A_InstructionNode( OP_UNIFORMS , parent ) , integers_( integers ) ,
+			progId_( prog.stringValue( ) ) , progIdLocation_( prog.location( ) ) ,
+			uloc_( loc.longValue( ) ) , ulocLocation_( loc.location( ) )
+	{ }
+
+	bool integers( ) const noexcept
+		{ return integers_; }
+
+	T_String const& progId( ) const noexcept
+		{ return progId_; }
+	T_SRDLocation const& progIdLocation( ) const noexcept
+		{ return progIdLocation_; }
+
+	uint32_t uloc( ) const noexcept
+		{ return uloc_; }
+	T_SRDLocation const& ulocLocation( ) const noexcept
+		{ return ulocLocation_; }
+
+	void addValue( P_ExpressionNode value ) noexcept
+	{
+		if ( value ) {
+			values_.add( std::move( value ) );
+		}
+	}
+
+	uint32_t values( ) const noexcept
+		{ return values_.size( ); }
+	A_ExpressionNode& value( const uint32_t index ) const noexcept
+		{ return *values_[ index ]; }
+};
+
 // Use-* instructions (framebuffers, programs, pipelines)
 // Also serves as the base for use-texture
 class T_UseInstrNode : public A_InstructionNode
diff --git a/opparser.cc b/opparser.cc
index 6b9276c..531bd07 100644
--- a/opparser.cc
+++ b/opparser.cc
@@ -22,6 +22,8 @@ struct T_ParserImpl_
 		PROGRAM ,
 		SET ,
 		TEXTURE ,
+		UNIFORMS_FLT ,
+		UNIFORMS_INT ,
 		USE_FRAMEBUFFER ,
 		USE_PIPELINE ,
 		USE_PROGRAM ,
@@ -44,6 +46,8 @@ struct T_ParserImpl_
 		add( "program" , E_InstrType::PROGRAM );
 		add( "set" , E_InstrType::SET );
 		add( "texture" , E_InstrType::TEXTURE );
+		add( "uniforms" , E_InstrType::UNIFORMS_FLT );
+		add( "uniforms-i" , E_InstrType::UNIFORMS_INT );
 		add( "use-framebuffer" , E_InstrType::USE_FRAMEBUFFER );
 		add( "use-pipeline" , E_InstrType::USE_PIPELINE );
 		add( "use-program" , E_InstrType::USE_PROGRAM );
@@ -163,6 +167,14 @@ struct T_ParserImpl_
 	M_DPARSER_( Program );
 	M_DPARSER_( Set );
 	M_DPARSER_( Texture );
+
+	M_DPARSER_( Uniforms );
+	M_DPARSER_( UniformsI );
+	void parseUniformsCommon(
+			T_InstrListNode& instructions ,
+			T_SRDList const& input ,
+			bool integers ) noexcept;
+
 	M_DPARSER_( UseFramebuffer );
 	M_DPARSER_( UsePipeline );
 	M_DPARSER_( UseProgram );
@@ -171,6 +183,7 @@ struct T_ParserImpl_
 			T_SRDList const& input ,
 			T_UseInstrNode::E_Type type ) noexcept;
 	M_DPARSER_( UseTexture );
+
 	M_DPARSER_( Viewport );
 
 #undef M_DPARSER_
@@ -432,6 +445,8 @@ void T_ParserImpl_::parseInstructions(
 			M_CASE_( PROGRAM , Program );
 			M_CASE_( SET , Set );
 			M_CASE_( TEXTURE , Texture );
+			M_CASE_( UNIFORMS_FLT , Uniforms );
+			M_CASE_( UNIFORMS_INT , UniformsI );
 			M_CASE_( USE_FRAMEBUFFER , UseFramebuffer );
 			M_CASE_( USE_PIPELINE , UsePipeline );
 			M_CASE_( USE_PROGRAM , UseProgram );
@@ -711,6 +726,56 @@ M_INSTR_( Texture )
 	}
 }
 
+/*----------------------------------------------------------------------------*/
+
+M_INSTR_( Uniforms )
+{
+	parseUniformsCommon( instructions , input , false );
+}
+
+M_INSTR_( UniformsI )
+{
+	parseUniformsCommon( instructions , input , true );
+}
+
+void T_ParserImpl_::parseUniformsCommon(
+		T_InstrListNode& instructions ,
+		T_SRDList const& input ,
+		const bool integers ) noexcept
+{
+	if ( input.size( ) == 1 || input[ 1 ].type( ) != E_SRDTokenType::WORD ) {
+		errors.addNew( "program identifier expected" ,
+				input[ input.size( ) == 1 ? 0 : 1 ].location( ) );
+		return;
+	}
+	if ( input.size( ) == 2 || !input[ 2 ].isInteger( ) ) {
+		errors.addNew( "uniform location expected" ,
+				input[ input.size( ) == 2 ? 0 : 2 ].location( ) );
+		return;
+	}
+	if ( input[ 2 ].longValue( ) < 0 || input[ 2 ].longValue( ) > UINT32_MAX ) {
+		errors.addNew( "invalid uniform location" , input[ 2 ].location( ) );
+		return;
+	}
+
+	auto& instr{ instructions.add< T_UniformsInstrNode >(
+			integers , input[ 1 ] , input[ 2 ] ) };
+	instr.location( ) = input[ 0 ].location( );
+	if ( input.size( ) == 3 ) {
+		errors.addNew( "at least one value required" , input[ 0 ].location( ) );
+		return;
+	}
+
+	for ( auto i = 3u ; i < input.size( ) ; i ++ ) {
+		if ( i == 7 ) {
+			errors.addNew( "too many arguments" , input[ i ].location( ) );
+			return;
+		}
+		instr.addValue( parseExpression( instr , input[ i ] ) );
+	}
+}
+
+
 /*----------------------------------------------------------------------------*/
 
 M_INSTR_( UseFramebuffer )