diff --git a/core/assets/shaders/slag.frag b/core/assets/shaders/slag.frag
index 0d87812584..702459fe48 100755
--- a/core/assets/shaders/slag.frag
+++ b/core/assets/shaders/slag.frag
@@ -6,7 +6,7 @@ precision mediump int;
 //shades of slag
 #define S2 vec3(100.0, 93.0, 49.0) / 100.0
 #define S1 vec3(100.0, 60.0, 25.0) / 100.0
-#define NSCALE 300.0
+#define NSCALE 300.0 / 2.0
 
 uniform sampler2D u_texture;
 uniform sampler2D u_noise;
diff --git a/core/assets/shaders/tar.frag b/core/assets/shaders/tar.frag
index e0aebac243..db5009141a 100644
--- a/core/assets/shaders/tar.frag
+++ b/core/assets/shaders/tar.frag
@@ -3,7 +3,7 @@ precision highp float;
 precision mediump int;
 #endif
 
-#define NSCALE 180.0
+#define NSCALE 180.0 / 2.0
 
 uniform sampler2D u_texture;
 uniform sampler2D u_noise;
diff --git a/core/assets/sprites/noise.png b/core/assets/sprites/noise.png
index b9302dd5f4..0c19e36bfa 100644
Binary files a/core/assets/sprites/noise.png and b/core/assets/sprites/noise.png differ