diff --git a/augmented-images/README.md b/augmented-images/README.md
index 71d2ff6..59eb8b3 100644
--- a/augmented-images/README.md
+++ b/augmented-images/README.md
@@ -1,6 +1,6 @@
 # Augmented images
 
-ARCore and Sceneform made with Augmented Image to show a virtual earth.
+ARCore and Sceneform project made with Augmented Image to show a virtual earth.
 
 ## Credit
 
diff --git a/augmented-images/build.gradle b/augmented-images/build.gradle
index fa9e126..993a84e 100644
--- a/augmented-images/build.gradle
+++ b/augmented-images/build.gradle
@@ -7,7 +7,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.2.1'
+        classpath 'com.android.tools.build:gradle:3.3.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath 'com.google.ar.sceneform:plugin:1.6.0'
 
diff --git a/augmented-images/gradle/wrapper/gradle-wrapper.properties b/augmented-images/gradle/wrapper/gradle-wrapper.properties
index 9a4163a..288dba7 100644
--- a/augmented-images/gradle/wrapper/gradle-wrapper.properties
+++ b/augmented-images/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,6 @@
+#Sat Feb 02 18:25:35 CET 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.1-all.zip
diff --git a/cloud-anchors/.idea/copyright/GPL_v__2_0.xml b/cloud-anchors/.idea/copyright/GPL_v__2_0.xml
index 534f537..6ac8137 100644
--- a/cloud-anchors/.idea/copyright/GPL_v__2_0.xml
+++ b/cloud-anchors/.idea/copyright/GPL_v__2_0.xml
@@ -1,6 +1,6 @@
 <component name="CopyrightManager">
   <copyright>
-    <option name="notice" value="Copyright (c) &amp;#36;today.year, norangebit &#10;&#10;This file is part of &amp;#36;project.name.&#10;&#10;     &amp;#36;project.name is free software: you can redistribute it and/or modify&#10;     it under the terms of the GNU General Public License as published by&#10;     the Free Software Foundation, either version 3 of the License, or&#10;     (at your option) any later version.&#10;&#10;     &amp;#36;project.name is distributed in the hope that it will be useful,&#10;     but WITHOUT ANY WARRANTY; without even the implied warranty of&#10;     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the&#10;     GNU General Public License for more details.&#10;&#10;     You should have received a copy of the GNU General Public License&#10;     along with &amp;#36;project.name.  If not, see &lt;http://www.gnu.org/licenses/&gt;&#10;" />
+    <option name="notice" value="Copyright (c) &amp;#36;today.year, norangebit &#10;&#10;This file is part of augmented-images.&#10;&#10;     &amp;#36;project.name is free software: you can redistribute it and/or modify&#10;     it under the terms of the GNU General Public License as published by&#10;     the Free Software Foundation, either version 3 of the License, or&#10;     (at your option) any later version.&#10;&#10;     &amp;#36;project.name is distributed in the hope that it will be useful,&#10;     but WITHOUT ANY WARRANTY; without even the implied warranty of&#10;     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the&#10;     GNU General Public License for more details.&#10;&#10;     You should have received a copy of the GNU General Public License&#10;     along with &amp;#36;project.name.  If not, see &lt;http://www.gnu.org/licenses/&gt;&#10;" />
     <option name="myName" value="GPL v. 2.0" />
   </copyright>
 </component>
\ No newline at end of file
diff --git a/cloud-anchors/.idea/misc.xml b/cloud-anchors/.idea/misc.xml
index b0c7b20..703e5d4 100644
--- a/cloud-anchors/.idea/misc.xml
+++ b/cloud-anchors/.idea/misc.xml
@@ -1,33 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="NullableNotNullManager">
-    <option name="myDefaultNullable" value="android.support.annotation.Nullable" />
-    <option name="myDefaultNotNull" value="android.support.annotation.NonNull" />
-    <option name="myNullables">
-      <value>
-        <list size="7">
-          <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.Nullable" />
-          <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nullable" />
-          <item index="2" class="java.lang.String" itemvalue="javax.annotation.CheckForNull" />
-          <item index="3" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.Nullable" />
-          <item index="4" class="java.lang.String" itemvalue="android.support.annotation.Nullable" />
-          <item index="5" class="java.lang.String" itemvalue="androidx.annotation.Nullable" />
-          <item index="6" class="java.lang.String" itemvalue="androidx.annotation.RecentlyNullable" />
-        </list>
-      </value>
-    </option>
-    <option name="myNotNulls">
-      <value>
-        <list size="6">
-          <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.NotNull" />
-          <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nonnull" />
-          <item index="2" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.NonNull" />
-          <item index="3" class="java.lang.String" itemvalue="android.support.annotation.NonNull" />
-          <item index="4" class="java.lang.String" itemvalue="androidx.annotation.NonNull" />
-          <item index="5" class="java.lang.String" itemvalue="androidx.annotation.RecentlyNonNull" />
-        </list>
-      </value>
-    </option>
+  <component name="CMakeSettings">
+    <configurations>
+      <configuration PROFILE_NAME="Debug" CONFIG_NAME="Debug" />
+    </configurations>
   </component>
   <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
diff --git a/cloud-anchors/README.md b/cloud-anchors/README.md
new file mode 100644
index 0000000..7ab0023
--- /dev/null
+++ b/cloud-anchors/README.md
@@ -0,0 +1,10 @@
+# Cloud Anchors 
+
+ARCore and Sceneform project made with Cloud Anchors to build a cross devices AR experience
+
+## Credit
+
+This app uses [tulip pot][tulip] model by [Mike M][mike].
+
+[tulip]: https://poly.google.com/view/0zkiY3qaSRP
+[mike]: https://poly.google.com/user/2U5vPocDfmr
diff --git a/collision/README.md b/collision/README.md
new file mode 100644
index 0000000..e870c0d
--- /dev/null
+++ b/collision/README.md
@@ -0,0 +1,3 @@
+# Collision
+
+ARCore and Sceneform project to show how detect collision between virtual object.
diff --git a/runtime-building-models/.idea/copyright/GPL_v__2_0.xml b/runtime-building-models/.idea/copyright/GPL_v__2_0.xml
index 534f537..6ac8137 100644
--- a/runtime-building-models/.idea/copyright/GPL_v__2_0.xml
+++ b/runtime-building-models/.idea/copyright/GPL_v__2_0.xml
@@ -1,6 +1,6 @@
 <component name="CopyrightManager">
   <copyright>
-    <option name="notice" value="Copyright (c) &amp;#36;today.year, norangebit &#10;&#10;This file is part of &amp;#36;project.name.&#10;&#10;     &amp;#36;project.name is free software: you can redistribute it and/or modify&#10;     it under the terms of the GNU General Public License as published by&#10;     the Free Software Foundation, either version 3 of the License, or&#10;     (at your option) any later version.&#10;&#10;     &amp;#36;project.name is distributed in the hope that it will be useful,&#10;     but WITHOUT ANY WARRANTY; without even the implied warranty of&#10;     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the&#10;     GNU General Public License for more details.&#10;&#10;     You should have received a copy of the GNU General Public License&#10;     along with &amp;#36;project.name.  If not, see &lt;http://www.gnu.org/licenses/&gt;&#10;" />
+    <option name="notice" value="Copyright (c) &amp;#36;today.year, norangebit &#10;&#10;This file is part of augmented-images.&#10;&#10;     &amp;#36;project.name is free software: you can redistribute it and/or modify&#10;     it under the terms of the GNU General Public License as published by&#10;     the Free Software Foundation, either version 3 of the License, or&#10;     (at your option) any later version.&#10;&#10;     &amp;#36;project.name is distributed in the hope that it will be useful,&#10;     but WITHOUT ANY WARRANTY; without even the implied warranty of&#10;     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the&#10;     GNU General Public License for more details.&#10;&#10;     You should have received a copy of the GNU General Public License&#10;     along with &amp;#36;project.name.  If not, see &lt;http://www.gnu.org/licenses/&gt;&#10;" />
     <option name="myName" value="GPL v. 2.0" />
   </copyright>
 </component>
\ No newline at end of file
diff --git a/runtime-building-models/.idea/misc.xml b/runtime-building-models/.idea/misc.xml
index b0c7b20..703e5d4 100644
--- a/runtime-building-models/.idea/misc.xml
+++ b/runtime-building-models/.idea/misc.xml
@@ -1,33 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="NullableNotNullManager">
-    <option name="myDefaultNullable" value="android.support.annotation.Nullable" />
-    <option name="myDefaultNotNull" value="android.support.annotation.NonNull" />
-    <option name="myNullables">
-      <value>
-        <list size="7">
-          <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.Nullable" />
-          <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nullable" />
-          <item index="2" class="java.lang.String" itemvalue="javax.annotation.CheckForNull" />
-          <item index="3" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.Nullable" />
-          <item index="4" class="java.lang.String" itemvalue="android.support.annotation.Nullable" />
-          <item index="5" class="java.lang.String" itemvalue="androidx.annotation.Nullable" />
-          <item index="6" class="java.lang.String" itemvalue="androidx.annotation.RecentlyNullable" />
-        </list>
-      </value>
-    </option>
-    <option name="myNotNulls">
-      <value>
-        <list size="6">
-          <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.NotNull" />
-          <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nonnull" />
-          <item index="2" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.NonNull" />
-          <item index="3" class="java.lang.String" itemvalue="android.support.annotation.NonNull" />
-          <item index="4" class="java.lang.String" itemvalue="androidx.annotation.NonNull" />
-          <item index="5" class="java.lang.String" itemvalue="androidx.annotation.RecentlyNonNull" />
-        </list>
-      </value>
-    </option>
+  <component name="CMakeSettings">
+    <configurations>
+      <configuration PROFILE_NAME="Debug" CONFIG_NAME="Debug" />
+    </configurations>
   </component>
   <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
diff --git a/runtime-building-models/build.gradle b/runtime-building-models/build.gradle
index a3176b9..ee486a6 100644
--- a/runtime-building-models/build.gradle
+++ b/runtime-building-models/build.gradle
@@ -1,13 +1,13 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.2.71'
+    ext.kotlin_version = '1.3.11'
     repositories {
         google()
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.2.1'
+        classpath 'com.android.tools.build:gradle:3.3.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
         // NOTE: Do not place your application dependencies here; they belong
diff --git a/runtime-building-models/gradle/wrapper/gradle-wrapper.properties b/runtime-building-models/gradle/wrapper/gradle-wrapper.properties
index 9a4163a..b2b729b 100644
--- a/runtime-building-models/gradle/wrapper/gradle-wrapper.properties
+++ b/runtime-building-models/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,6 @@
+#Sat Feb 02 18:17:45 CET 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.1-all.zip
diff --git a/runtime-fetching-models/.idea/misc.xml b/runtime-fetching-models/.idea/misc.xml
index b0c7b20..703e5d4 100644
--- a/runtime-fetching-models/.idea/misc.xml
+++ b/runtime-fetching-models/.idea/misc.xml
@@ -1,33 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="NullableNotNullManager">
-    <option name="myDefaultNullable" value="android.support.annotation.Nullable" />
-    <option name="myDefaultNotNull" value="android.support.annotation.NonNull" />
-    <option name="myNullables">
-      <value>
-        <list size="7">
-          <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.Nullable" />
-          <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nullable" />
-          <item index="2" class="java.lang.String" itemvalue="javax.annotation.CheckForNull" />
-          <item index="3" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.Nullable" />
-          <item index="4" class="java.lang.String" itemvalue="android.support.annotation.Nullable" />
-          <item index="5" class="java.lang.String" itemvalue="androidx.annotation.Nullable" />
-          <item index="6" class="java.lang.String" itemvalue="androidx.annotation.RecentlyNullable" />
-        </list>
-      </value>
-    </option>
-    <option name="myNotNulls">
-      <value>
-        <list size="6">
-          <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.NotNull" />
-          <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nonnull" />
-          <item index="2" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.NonNull" />
-          <item index="3" class="java.lang.String" itemvalue="android.support.annotation.NonNull" />
-          <item index="4" class="java.lang.String" itemvalue="androidx.annotation.NonNull" />
-          <item index="5" class="java.lang.String" itemvalue="androidx.annotation.RecentlyNonNull" />
-        </list>
-      </value>
-    </option>
+  <component name="CMakeSettings">
+    <configurations>
+      <configuration PROFILE_NAME="Debug" CONFIG_NAME="Debug" />
+    </configurations>
   </component>
   <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
diff --git a/runtime-fetching-models/build.gradle b/runtime-fetching-models/build.gradle
index a3176b9..ee486a6 100644
--- a/runtime-fetching-models/build.gradle
+++ b/runtime-fetching-models/build.gradle
@@ -1,13 +1,13 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.2.71'
+    ext.kotlin_version = '1.3.11'
     repositories {
         google()
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.2.1'
+        classpath 'com.android.tools.build:gradle:3.3.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
         // NOTE: Do not place your application dependencies here; they belong
diff --git a/runtime-fetching-models/gradle/wrapper/gradle-wrapper.properties b/runtime-fetching-models/gradle/wrapper/gradle-wrapper.properties
index 9a4163a..9c718ee 100644
--- a/runtime-fetching-models/gradle/wrapper/gradle-wrapper.properties
+++ b/runtime-fetching-models/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,6 @@
+#Sat Feb 02 18:19:07 CET 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.1-all.zip
diff --git a/solar-system/.idea/copyright/GPL_v__2_0.xml b/solar-system/.idea/copyright/GPL_v__2_0.xml
index 534f537..6ac8137 100644
--- a/solar-system/.idea/copyright/GPL_v__2_0.xml
+++ b/solar-system/.idea/copyright/GPL_v__2_0.xml
@@ -1,6 +1,6 @@
 <component name="CopyrightManager">
   <copyright>
-    <option name="notice" value="Copyright (c) &amp;#36;today.year, norangebit &#10;&#10;This file is part of &amp;#36;project.name.&#10;&#10;     &amp;#36;project.name is free software: you can redistribute it and/or modify&#10;     it under the terms of the GNU General Public License as published by&#10;     the Free Software Foundation, either version 3 of the License, or&#10;     (at your option) any later version.&#10;&#10;     &amp;#36;project.name is distributed in the hope that it will be useful,&#10;     but WITHOUT ANY WARRANTY; without even the implied warranty of&#10;     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the&#10;     GNU General Public License for more details.&#10;&#10;     You should have received a copy of the GNU General Public License&#10;     along with &amp;#36;project.name.  If not, see &lt;http://www.gnu.org/licenses/&gt;&#10;" />
+    <option name="notice" value="Copyright (c) &amp;#36;today.year, norangebit &#10;&#10;This file is part of augmented-images.&#10;&#10;     &amp;#36;project.name is free software: you can redistribute it and/or modify&#10;     it under the terms of the GNU General Public License as published by&#10;     the Free Software Foundation, either version 3 of the License, or&#10;     (at your option) any later version.&#10;&#10;     &amp;#36;project.name is distributed in the hope that it will be useful,&#10;     but WITHOUT ANY WARRANTY; without even the implied warranty of&#10;     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the&#10;     GNU General Public License for more details.&#10;&#10;     You should have received a copy of the GNU General Public License&#10;     along with &amp;#36;project.name.  If not, see &lt;http://www.gnu.org/licenses/&gt;&#10;" />
     <option name="myName" value="GPL v. 2.0" />
   </copyright>
 </component>
\ No newline at end of file
diff --git a/solar-system/.idea/misc.xml b/solar-system/.idea/misc.xml
index b0c7b20..703e5d4 100644
--- a/solar-system/.idea/misc.xml
+++ b/solar-system/.idea/misc.xml
@@ -1,33 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="NullableNotNullManager">
-    <option name="myDefaultNullable" value="android.support.annotation.Nullable" />
-    <option name="myDefaultNotNull" value="android.support.annotation.NonNull" />
-    <option name="myNullables">
-      <value>
-        <list size="7">
-          <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.Nullable" />
-          <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nullable" />
-          <item index="2" class="java.lang.String" itemvalue="javax.annotation.CheckForNull" />
-          <item index="3" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.Nullable" />
-          <item index="4" class="java.lang.String" itemvalue="android.support.annotation.Nullable" />
-          <item index="5" class="java.lang.String" itemvalue="androidx.annotation.Nullable" />
-          <item index="6" class="java.lang.String" itemvalue="androidx.annotation.RecentlyNullable" />
-        </list>
-      </value>
-    </option>
-    <option name="myNotNulls">
-      <value>
-        <list size="6">
-          <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.NotNull" />
-          <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nonnull" />
-          <item index="2" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.NonNull" />
-          <item index="3" class="java.lang.String" itemvalue="android.support.annotation.NonNull" />
-          <item index="4" class="java.lang.String" itemvalue="androidx.annotation.NonNull" />
-          <item index="5" class="java.lang.String" itemvalue="androidx.annotation.RecentlyNonNull" />
-        </list>
-      </value>
-    </option>
+  <component name="CMakeSettings">
+    <configurations>
+      <configuration PROFILE_NAME="Debug" CONFIG_NAME="Debug" />
+    </configurations>
   </component>
   <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />