diff --git a/lib/light_world.lua b/lib/light_world.lua
index 47fe140..aec51ac 100644
--- a/lib/light_world.lua
+++ b/lib/light_world.lua
@@ -290,7 +290,6 @@ function light_world:update()
     love.graphics.setBlendMode("alpha")
   end
 
-  print(self.optionGlow, self.isGlow)
   if self.optionGlow and self.isGlow then
     -- create glow map
     self.glowMap:clear(0, 0, 0)
diff --git a/lib/postshader.lua b/lib/postshader.lua
index 98c7aa9..5e59a18 100644
--- a/lib/postshader.lua
+++ b/lib/postshader.lua
@@ -121,14 +121,13 @@ love.postshader.addEffect = function(shader, ...)
 		love.graphics.draw(LOVE_POSTSHADER_BUFFER_RENDER)
 	elseif shader == "scanlines" then
 		-- Scanlines Shader
-		--LOVE_POSTSHADER_SCANLINES:send("screen", {love.window.getWidth(), love.window.getHeight()})
+		LOVE_POSTSHADER_SCANLINES:send("screen", {love.window.getWidth(), love.window.getHeight()})
 		LOVE_POSTSHADER_SCANLINES:send("strength", args[1] or 2.0)
 		LOVE_POSTSHADER_SCANLINES:send("time", args[2] or love.timer.getTime())
 		love.graphics.setShader(LOVE_POSTSHADER_SCANLINES)
 		love.graphics.draw(LOVE_POSTSHADER_BUFFER_RENDER)
 	elseif shader == "tiltshift" then
 		-- Blur Shader
-		LOVE_POSTSHADER_BLURV:send("screen", {love.window.getWidth(), love.window.getHeight()})
 		LOVE_POSTSHADER_BLURH:send("screen", {love.window.getWidth(), love.window.getHeight()})
 		LOVE_POSTSHADER_BLURV:send("steps", args[1] or 2.0)
 		LOVE_POSTSHADER_BLURH:send("steps", args[1] or 2.0)
diff --git a/shader/scanlines.glsl b/shader/scanlines.glsl
index 0f677aa..72b68ec 100644
--- a/shader/scanlines.glsl
+++ b/shader/scanlines.glsl
@@ -1,9 +1,9 @@
-extern vec2 screenHeight = vec2(800.0, 600.0);
+extern vec2 screen = vec2(800.0, 600.0);
 extern float strength = 2.0;
 extern float time = 0.0;
 
 vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords){
-	vec2 pSize = 1.0 / screenHeight;
+	vec2 pSize = 1.0 / screen;
 	float brightness = 1.0;
 	float offsetX = sin(texture_coords.y * 10.0 + time * strength) * pSize.x;
 	float corner = 500.0;
@@ -25,9 +25,9 @@ vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords){
 	float green = Texel(texture, vec2(texture_coords.x + offsetX, texture_coords.y - pSize.y * 0.5)).g;
 	float blue = Texel(texture, vec2(texture_coords.x + offsetX, texture_coords.y)).b;
 
-	if(mod(texture_coords.y * screenHeight.y, 2.0) > 0.5) {
+	if(mod(texture_coords.y * screen.y, 2.0) > 0.5) {
 		return vec4(vec3(red, green, blue) * brightness, 1.0);
 	} else {
 		return vec4(vec3(red * 0.75, green * 0.75, blue * 0.75) * brightness, 1.0);
 	}
-}
\ No newline at end of file
+}