diff --git a/2020/sketch_2020_09_11a/sketch_2020_09_11a.gif b/2020/sketch_2020_09_11a/sketch_2020_09_11a.gif
new file mode 100644
index 00000000..30927a71
Binary files /dev/null and b/2020/sketch_2020_09_11a/sketch_2020_09_11a.gif differ
diff --git a/2020/sketch_2020_09_11a/sketch_2020_09_11a.pyde b/2020/sketch_2020_09_11a/sketch_2020_09_11a.pyde
new file mode 100644
index 00000000..19c441b4
--- /dev/null
+++ b/2020/sketch_2020_09_11a/sketch_2020_09_11a.pyde
@@ -0,0 +1,27 @@
+from java.lang import System
+System.setProperty("jogl.disable.openglcore", "false")
+
+V = PVector
+t = translate
+w = 512
+m = 256
+l = [V()]
+def setup():
+    size(w, w, P3D)
+def draw():
+    u = l[-1]
+    f = millis() / 1e3
+    N = lambda o:int(noise(f+o) * 255)
+    clear()
+    t(*[m] * 3)
+    rotateX(f)
+    n = int(noise(f) * 6)
+    [(t(*b), fill(N(i),N(i+100),N(200)), box(5), t(*b * -1), b.sub(u / 9))
+     for i,b in enumerate(l)]
+    a = -5 + (10 * (n % 2))
+    l[:] += [u + V(a * (n == 3), a * (n == 2), a * (n == 1))]
+
+
+# V=PVector;t=translate;w=512;m=256;l=[V()]
+# def setup():size(w,w,P3D)
+# def draw():u=l[-1];f=millis()/1e3;clear();t(*[m]*3);rotateX(f);[(t(*b),fill(b[0]%m,b[1]%m,b[2]%m),box(5),t(*b*-1),b.sub(u/9))for b in l];n=int(noise(f)*6);a=-5+(10*(n%2));l[:]+=[u+V(a*(n==3),a*(n==2),a*(n==1))]
diff --git a/README.md b/README.md
index 90c42b8a..cc2ce090 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,12 @@
 
 ---
 
+![sketch_2020_09_11a](2020/sketch_2020_09_11a/sketch_2020_09_11a.gif)
+
+[sketch_2020_09_11a](https://github.com/villares/sketch-a-day/tree/master/2020/sketch_2020_09_11a) [[Py.Processing](https://villares.github.io/como-instalar-o-processing-modo-python/index-EN)]
+
+---
+
 ![sketch_2020_09_10a](2020/sketch_2020_09_10a/sketch_2020_09_10a.gif)
 
 [sketch_2020_09_10a](https://github.com/villares/sketch-a-day/tree/master/2020/sketch_2020_09_10a) [[Py.Processing](https://villares.github.io/como-instalar-o-processing-modo-python/index-EN)]