diff --git a/examples/color_and_pixelate.gdshader b/examples/color_and_pixelate.gdshader
new file mode 100644
index 0000000..f1ea38c
--- /dev/null
+++ b/examples/color_and_pixelate.gdshader
@@ -0,0 +1,13 @@
+shader_type canvas_item;
+
+#include "res://shaderlib/hsv.gdshaderinc"
+#include "res://shaderlib/effects.gdshaderinc"
+
+//!load ./swamp.jpg
+
+void fragment() {
+	COLOR = pixelate(TEXTURE, UV, 200.0);
+	vec4 hsv = rgb2hsv(COLOR);
+	COLOR = hsv_offset(COLOR, 0.65, .42-(hsv.y*.3), -.125);
+	COLOR = hsv_multiply(COLOR, 1.0, 1.0, 1.25);
+}
diff --git a/examples/hsv.gdshader b/examples/hsv.gdshader
deleted file mode 100644
index b4d9100..0000000
--- a/examples/hsv.gdshader
+++ /dev/null
@@ -1,9 +0,0 @@
-shader_type canvas_item;
-
-#include "res://shaderlib/hsv.gdshaderinc"
-
-//!load ./swamp.jpg
-
-void fragment() {
-	COLOR = hsv_multiply(hsv_offset(COLOR, -0.3, 0.9, 0.0), 1.0, 0.44, 1.0);
-}
diff --git a/shaderlib/effects.gdshaderinc b/shaderlib/effects.gdshaderinc
new file mode 100644
index 0000000..d9b91f1
--- /dev/null
+++ b/shaderlib/effects.gdshaderinc
@@ -0,0 +1,14 @@
+
+// pixelate by lowering uv resolution
+vec4 pixelate(sampler2D tex, vec2 uv, float resolution_x) {
+	vec2 texture_size = vec2(textureSize(tex, 0));
+	vec2 ratio;
+	if (texture_size.x > texture_size.y) {
+		ratio = vec2(texture_size.x / texture_size.y, 1.0);
+	}
+	else {
+		ratio = vec2(1.0, texture_size.y / texture_size.x);
+	}
+	vec2 r = ratio * resolution_x;
+	return texture(tex, trunc(uv * r) / r);
+}
diff --git a/src/Editor.gd b/src/Editor.gd
index c30a185..2d1aa6e 100644
--- a/src/Editor.gd
+++ b/src/Editor.gd
@@ -131,12 +131,14 @@ const gdshader_preprocessor = [
 var shaderlib_regex = {
 	"hsv": RegEx.create_from_string(r'\s*\#include\s+\"res\:\/\/shaderlib\/hsv\.gdshaderinc\"'),
 	"transform": RegEx.create_from_string(r'\s*\#include\s+\"res\:\/\/shaderlib\/transform\.gdshaderinc\"'),
-	"transparency": RegEx.create_from_string(r'\s*\#include\s+\"res\:\/\/shaderlib\/transparency\.gdshaderinc\"')
+	"transparency": RegEx.create_from_string(r'\s*\#include\s+\"res\:\/\/shaderlib\/transparency\.gdshaderinc\"'),
+	"effects": RegEx.create_from_string(r'\s*\#include\s+\"res\:\/\/shaderlib\/effects\.gdshaderinc\"')
 }
 const shaderlib_functions = {
 	"hsv": ["rgb2hsv", "hsv2rgb", "hsv_offset", "hsv_multiply"],
 	"transform": ["place_texture"],
 	"transparency": ["alpha_blend"],
+	"effects": ["pixelate"]
 }
 #
 # configure Highlighter