Fix pixelize filter's issue

nekocode · Aug 8, 2016 · 364126d · 364126d
1 parent f420ae1
commit 364126d
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Showing 2 changed files with 5 additions and 4 deletions.
diff --git a/README.md b/README.md
@@ -3,7 +3,7 @@
 
 Realtime camera filters. Process frames by OpenGL shaders.
 
-**[Download the apk](https://github.com/WeLikeVis/CameraFilter/releases/download/1.2/app-debug.apk)** to have a try.
+**[Download the apk](https://github.com/WeLikeVis/CameraFilter/releases/download/1.2.1/app-debug.apk)** to have a try.
 
 ## Filters
 

diff --git a/app/src/main/res/raw/pixelize.fsh b/app/src/main/res/raw/pixelize.fsh
@@ -6,10 +6,11 @@ uniform vec3                iResolution;
 uniform samplerExternalOES  sTexture;
 varying vec2                texCoord;
 
-void mainImage(out vec4 f,vec2 u)
+#define S (iResolution.x / 6e1) // The cell size.
+
+void mainImage(out vec4 c, vec2 p)
 {
-    vec2 r = iResolution.xy;
-    f = texture2D(sTexture,ceil(u / (r.x/1e2)) * r.x/1e2 / r);
+    c = texture2D(sTexture, floor((p + .5) / S) * S / iResolution.xy);
 }
 
 void main() {