diff --git a/OpenRa.Game/Graphics/Renderer.cs b/OpenRa.Game/Graphics/Renderer.cs
index 31cf83fe8d..66ae9f65d5 100644
--- a/OpenRa.Game/Graphics/Renderer.cs
+++ b/OpenRa.Game/Graphics/Renderer.cs
@@ -49,9 +49,9 @@ namespace OpenRa.Graphics
 			device.Clear(Color.Black);
 
 			SpriteShader.SetValue("Palette", PaletteTexture);
-			SpriteShader.SetValue("Scroll", scroll);
-			SpriteShader.SetValue("r1", r1);
-			SpriteShader.SetValue("r2", r2);
+			SpriteShader.SetValue("Scroll", scroll.X, scroll.Y);
+			SpriteShader.SetValue("r1", r1.X, r1.Y);
+			SpriteShader.SetValue("r2", r2.X, r2.Y);
 			SpriteShader.Commit();
 		}
 
diff --git a/OpenRa.Gl/GraphicsDevice.cs b/OpenRa.Gl/GraphicsDevice.cs
index c34ba900d0..031f431fc9 100644
--- a/OpenRa.Gl/GraphicsDevice.cs
+++ b/OpenRa.Gl/GraphicsDevice.cs
@@ -238,8 +238,18 @@ namespace OpenRa.GlRenderer
             CgGl.cgGLDisableProfile(dev.vertexProfile);
         }
 
-        public void SetValue(string param, Texture texture) { }
-        public void SetValue<T>(string param, T t) where T : struct { }
+        public void SetValue(string name, Texture texture)
+        {
+            var param = Cg.cgGetNamedEffectParameter(effect, name);
+            CgGl.cgGLSetTextureParameter(param, texture.texture);
+        }
+
+        public void SetValue(string name, float x, float y)
+        {
+            var param = Cg.cgGetNamedEffectParameter(effect, name);
+            CgGl.cgGLSetParameter2f(param, x, y);
+        }
+
         public void Commit() { }
     }