diff --git a/resources/com/pfeodrippe/vybe/shaders/mixer.fs b/resources/com/pfeodrippe/vybe/shaders/mixer.fs
index 740185f..465c3a8 100644
--- a/resources/com/pfeodrippe/vybe/shaders/mixer.fs
+++ b/resources/com/pfeodrippe/vybe/shaders/mixer.fs
@@ -39,11 +39,11 @@ bool fill_blob(vec2 st) {
         trigger = true;
     }
 
-    // Square.
-    // if (st.x - 0.5 < 0.25 * u_fill && st.y - 0.5 < 0.25 * u_fill &&
-    //     st.x - 0.5 > -0.25 * u_fill && st.y - 0.5 > -0.25 * u_fill) {
-    //     trigger = true;
-    // }
+    //Square.
+    /*if (st.x - 0.5 < 0.25 * u_fill && st.y - 0.5 < 0.25 * u_fill &&
+        st.x - 0.5 > -0.25 * u_fill && st.y - 0.5 > -0.25 * u_fill) {
+        trigger = true;
+    }*/
 
     /*
     if ((sin(st.x + cos(u_time*0.532) * 0.05) - c) * (sin(st.x + cos(u_time*0.3) * 0.04) - c) +
@@ -62,15 +62,11 @@ bool fill_blob(vec2 st) {
     */
 
     // dots
-    /*
-    if ((st.x - c) * (st.x - c) + (st.y - c) * (st.y - c) < r/5.0) {
+    /*if ((st.x - c) * (st.x - c) + (st.y - c) * (st.y - c) < r/5.0) {
         if (sin(st.y*99999.0) > 0.0001 && cos(st.x*100000.0) > 0.0001) {
             trigger = true;
-        } else {
-            trigger = false;
         }
-    }
-    */
+    }*/
 
     return trigger;
 }
diff --git a/src/vybe/game/system.clj b/src/vybe/game/system.clj
index bb54f6c..92939fc 100644
--- a/src/vybe/game/system.clj
+++ b/src/vybe/game/system.clj
@@ -286,26 +286,26 @@
       (assoc-in [:rotation] rotation)))
 
 ;; -- Audio.
-(defn- -ambisonic
-  [sound-source source-transform target-transform]
-  (let [d (vr.c/vector-3-distance
-           (vm/matrix->translation target-transform)
-           (vm/matrix->translation source-transform))
-        [azim elev] (let [{:keys [x y z] :as _v} (-> source-transform
-                                                     (vr.c/matrix-multiply (vr.c/matrix-invert target-transform))
-                                                     vm/matrix->translation)]
-                      (if (> z 0)
-                        [(- (Math/atan2 x z))
-                         (Math/atan2 y z)
-                         _v]
-                        [(Math/atan2 x z)
-                         (Math/atan2 y z)
-                         _v]))
-        amp (if (zero? d)
-              1
-              (/ 1 (* d d)))]
-    (va/sound
-      (ctl sound-source :azim azim :elev elev :amp (* amp 100) :distance d))))
+#_(defn- -ambisonic
+    [sound-source source-transform target-transform]
+    (let [d (vr.c/vector-3-distance
+             (vm/matrix->translation target-transform)
+             (vm/matrix->translation source-transform))
+          [azim elev] (let [{:keys [x y z] :as _v} (-> source-transform
+                                                       (vr.c/matrix-multiply (vr.c/matrix-invert target-transform))
+                                                       vm/matrix->translation)]
+                        (if (> z 0)
+                          [(- (Math/atan2 x z))
+                           (Math/atan2 y z)
+                           _v]
+                          [(Math/atan2 x z)
+                           (Math/atan2 y z)
+                           _v]))
+          amp (if (zero? d)
+                1
+                (/ 1 (* d d)))]
+      (va/sound
+        (ctl sound-source :azim azim :elev elev :amp (* amp 100) :distance d))))
 
 #_(defsynth ks1
   [note  {:default 60  :min 10   :max 120  :step 1}
diff --git a/todo.md b/todo.md
index 3253d1e..724fa15 100644
--- a/todo.md
+++ b/todo.md
@@ -235,8 +235,8 @@
       - [x] ecs_query_get
 - [x] physics
   - [x] trigger event when touching
-- [ ] passthrough render
-  - [ ] shader
+- [x] passthrough render
+  - [x] shader
     - [x] portion of the window
     - [x] only when cube clicked
     - [x] LPF when enabled
@@ -245,10 +245,10 @@
         - [x] disable/enable object
         - [x] render to another RT
         - [x] shader to mix the RTs
-    - [ ] transition from a blob
-      - [ ] square
-      - [ ] circle
-    - [ ] animate blob
+    - [x] transition from a blob
+      - [x] square
+      - [x] circle
+    - [x] animate blob
 - [ ] multiple worlds, render twice?
   - [ ] 2-player where you pass one object to the other?
   - [ ] 3d?