diff --git a/zoneb/bin/data/shaders/bound.frag b/zoneb/bin/data/shaders/bound.frag
index d346851..00bd4e3 100644
--- a/zoneb/bin/data/shaders/bound.frag
+++ b/zoneb/bin/data/shaders/bound.frag
@@ -176,20 +176,21 @@ void main() {
   vec3 dispColor = vec3(0, 0, 0);
   vec4 pointCloudColor = texture(u_ofcam, st); 
 
-  float maxVal = 0;
-  float minVal = 1;
-  for (int i=0; i < 9; i++){
-    float tmp = texture(u_buffer1, st2 + offset[i]/2).r > 0.5 ? 1 : 0;
-    maxVal = max(maxVal, tmp);
-    minVal = min(minVal, tmp);
-  }
+  // float maxVal = 0;
+  // float minVal = 1;
+  // for (int i=0; i < 9; i++){
+  //   float tmp = texture(u_buffer1, st2 + offset[i]/2).r > 0.5 ? 1 : 0;
+  //   maxVal = max(maxVal, tmp);
+  //   minVal = min(minVal, tmp);
+  // }
 
-  if(maxVal - minVal >= 0.5) {
-    dispColor.rgb = vec3(1);
-  }
+  // if(maxVal - minVal >= 0.5) {
+  //   dispColor.rgb = vec3(1);
+  // }
 
-  gl_FragColor = vec4(dispColor, 1.0);
-  gl_FragColor.rgb += pointCloudColor.rgb; // not good
+  // gl_FragColor = vec4(dispColor, 1.0);
+  // gl_FragColor.rgb += pointCloudColor.rgb; // not good
+  gl_FragColor = vec4(mix(vec3(0), pointCloudColor.rgb, pointCloudColor.a), 1.0);
 
 #endif
 
diff --git a/zoneb/src/ofApp.cpp b/zoneb/src/ofApp.cpp
index 6def3fc..a803809 100644
--- a/zoneb/src/ofApp.cpp
+++ b/zoneb/src/ofApp.cpp
@@ -259,10 +259,7 @@ void ofApp::drawMain()
   boundShader.setUniform1i("u_init", 1);
   boundShader.render();
   boundShader.setUniform1i("u_init", 0);
-  for (int i = 0; i < 30; i++)
-  {
-    boundShader.render();
-  }
+  boundShader.render();
 }
 
 void ofApp::drawDebug()