diff --git a/interface/resources/images/loadingBar_placard.png b/interface/resources/images/loadingBar_placard.png
new file mode 100644
index 0000000000..9fd4c9e71f
Binary files /dev/null and b/interface/resources/images/loadingBar_placard.png differ
diff --git a/interface/resources/images/loadingBar_progress.png b/interface/resources/images/loadingBar_progress.png
new file mode 100644
index 0000000000..2b1fb089d9
Binary files /dev/null and b/interface/resources/images/loadingBar_progress.png differ
diff --git a/interface/src/Application.cpp b/interface/src/Application.cpp
index 9405915bcf..b4a8c43be7 100644
--- a/interface/src/Application.cpp
+++ b/interface/src/Application.cpp
@@ -1387,6 +1387,7 @@ Application::Application(int& argc, char** argv, QElapsedTimer& startupTimer, bo
         });
         connect(this, &Application::activeDisplayPluginChanged,
             reinterpret_cast<scripting::Audio*>(audioScriptingInterface.data()), &scripting::Audio::onContextChanged);
+        connect(this, &Application::interstitialModeChanged, audioIO, &AudioClient::setInterstitialStatus);
     }
 
     // Create the rendering engine.  This can be slow on some machines due to lots of
@@ -1645,7 +1646,7 @@ Application::Application(int& argc, char** argv, QElapsedTimer& startupTimer, bo
                 audioClient->setMuted(!audioClient->isMuted());
             } else if (action == controller::toInt(controller::Action::CYCLE_CAMERA)) {
                 cycleCamera();
-            } else if (action == controller::toInt(controller::Action::CONTEXT_MENU)) {
+            } else if (action == controller::toInt(controller::Action::CONTEXT_MENU) && !isInterstitialMode()) {
                 toggleTabletUI();
             } else if (action == controller::toInt(controller::Action::RETICLE_X)) {
                 auto oldPos = getApplicationCompositor().getReticlePosition();
@@ -2294,6 +2295,25 @@ Application::Application(int& argc, char** argv, QElapsedTimer& startupTimer, bo
     // Preload Tablet sounds
     DependencyManager::get<TabletScriptingInterface>()->preloadSounds();
 
+    connect(this, &Application::interstitialModeChanged, this, [this] (bool interstitialMode) {
+        if (!interstitialMode) {
+            DependencyManager::get<AudioClient>()->negotiateAudioFormat();
+            _queryExpiry = SteadyClock::now();
+            if (_avatarOverrideUrl.isValid()) {
+                getMyAvatar()->useFullAvatarURL(_avatarOverrideUrl);
+            }
+
+            if (getMyAvatar()->getFullAvatarURLFromPreferences() != getMyAvatar()->getSkeletonModelURL()) {
+                getMyAvatar()->resetFullAvatarURL();
+            }
+            getMyAvatar()->markIdentityDataChanged();
+            getMyAvatar()->resetLastSent();
+
+            // transmit a "sendAll" packet to the AvatarMixer we just connected to.
+            getMyAvatar()->sendAvatarDataPacket(true);
+        }
+    });
+
     _pendingIdleEvent = false;
     _pendingRenderEvent = false;
 
@@ -2994,6 +3014,9 @@ void Application::initializeUi() {
     if (_window && _window->isFullScreen()) {
         setFullscreen(nullptr, true);
     }
+
+
+    setIsInterstitialMode(true);
 }
 
 
@@ -3470,6 +3493,22 @@ bool Application::isServerlessMode() const {
     return false;
 }
 
+bool Application::isInterstitialMode() const {
+    bool interstitialModeEnabled = Menu::getInstance()->isOptionChecked("Enable Interstitial");
+    return interstitialModeEnabled ? _interstitialMode : false;
+}
+
+void Application::setIsInterstitialMode(bool interstitialMode) {
+    auto menu = Menu::getInstance();
+    bool interstitialModeEnabled = menu->isOptionChecked("Enable Interstitial");
+    if (_interstitialMode != interstitialMode && interstitialModeEnabled) {
+        _interstitialMode = interstitialMode;
+
+        DependencyManager::get<OffscreenUi>()->setPinned(_interstitialMode);
+        emit interstitialModeChanged(_interstitialMode);
+    }
+}
+
 void Application::setIsServerlessMode(bool serverlessDomain) {
     auto tree = getEntities()->getTree();
     if (tree) {
@@ -3750,7 +3789,7 @@ void Application::keyPressEvent(QKeyEvent* event) {
 
     _controllerScriptingInterface->emitKeyPressEvent(event); // send events to any registered scripts
     // if one of our scripts have asked to capture this event, then stop processing it
-    if (_controllerScriptingInterface->isKeyCaptured(event)) {
+    if (_controllerScriptingInterface->isKeyCaptured(event) || isInterstitialMode()) {
         return;
     }
 
@@ -5308,6 +5347,7 @@ void Application::resetPhysicsReadyInformation() {
     _fullSceneCounterAtLastPhysicsCheck = 0;
     _nearbyEntitiesCountAtLastPhysicsCheck = 0;
     _nearbyEntitiesStabilityCount = 0;
+    _nearbyEntitiesReadyCount = 0;
     _physicsEnabled = false;
     _octreeProcessor.startEntitySequence();
 }
@@ -5535,6 +5575,7 @@ void Application::update(float deltaTime) {
         return;
     }
 
+
     if (!_physicsEnabled) {
         if (!domainLoadingInProgress) {
             PROFILE_ASYNC_BEGIN(app, "Scene Loading", "");
@@ -5544,7 +5585,8 @@ void Application::update(float deltaTime) {
         // we haven't yet enabled physics.  we wait until we think we have all the collision information
         // for nearby entities before starting bullet up.
         quint64 now = usecTimestampNow();
-        if (isServerlessMode() || _octreeProcessor.isLoadSequenceComplete()) {
+        bool renderReady = _octreeProcessor.isEntitiesRenderReady();
+        if (isServerlessMode() || (_octreeProcessor.isLoadSequenceComplete() && renderReady)) {
             // we've received a new full-scene octree stats packet, or it's been long enough to try again anyway
             _lastPhysicsCheckTime = now;
             _fullSceneCounterAtLastPhysicsCheck = _fullSceneReceivedCounter;
@@ -5555,6 +5597,7 @@ void Application::update(float deltaTime) {
             // scene is ready to compute its collision shape.
             if (getMyAvatar()->isReadyForPhysics()) {
                 _physicsEnabled = true;
+                setIsInterstitialMode(false);
                 getMyAvatar()->updateMotionBehaviorFromMenu();
             }
         }
@@ -5634,7 +5677,7 @@ void Application::update(float deltaTime) {
         // Transfer the user inputs to the driveKeys
         // FIXME can we drop drive keys and just have the avatar read the action states directly?
         myAvatar->clearDriveKeys();
-        if (_myCamera.getMode() != CAMERA_MODE_INDEPENDENT) {
+        if (_myCamera.getMode() != CAMERA_MODE_INDEPENDENT && !isInterstitialMode()) {
             if (!_controllerScriptingInterface->areActionsCaptured() && _myCamera.getMode() != CAMERA_MODE_MIRROR) {
                 myAvatar->setDriveKey(MyAvatar::TRANSLATE_Z, -1.0f * userInputMapper->getActionState(controller::Action::TRANSLATE_Z));
                 myAvatar->setDriveKey(MyAvatar::TRANSLATE_Y, userInputMapper->getActionState(controller::Action::TRANSLATE_Y));
@@ -5952,7 +5995,7 @@ void Application::update(float deltaTime) {
     // send packet containing downstream audio stats to the AudioMixer
     {
         quint64 sinceLastNack = now - _lastSendDownstreamAudioStats;
-        if (sinceLastNack > TOO_LONG_SINCE_LAST_SEND_DOWNSTREAM_AUDIO_STATS) {
+        if (sinceLastNack > TOO_LONG_SINCE_LAST_SEND_DOWNSTREAM_AUDIO_STATS && !isInterstitialMode()) {
             _lastSendDownstreamAudioStats = now;
 
             QMetaObject::invokeMethod(DependencyManager::get<AudioClient>().data(), "sendDownstreamAudioStatsPacket", Qt::QueuedConnection);
@@ -6115,21 +6158,23 @@ void Application::updateRenderArgs(float deltaTime) {
 }
 
 void Application::queryAvatars() {
-    auto avatarPacket = NLPacket::create(PacketType::AvatarQuery);
-    auto destinationBuffer = reinterpret_cast<unsigned char*>(avatarPacket->getPayload());
-    unsigned char* bufferStart = destinationBuffer;
+    if (!isInterstitialMode()) {
+        auto avatarPacket = NLPacket::create(PacketType::AvatarQuery);
+        auto destinationBuffer = reinterpret_cast<unsigned char*>(avatarPacket->getPayload());
+        unsigned char* bufferStart = destinationBuffer;
 
-    uint8_t numFrustums = (uint8_t)_conicalViews.size();
-    memcpy(destinationBuffer, &numFrustums, sizeof(numFrustums));
-    destinationBuffer += sizeof(numFrustums);
+        uint8_t numFrustums = (uint8_t)_conicalViews.size();
+        memcpy(destinationBuffer, &numFrustums, sizeof(numFrustums));
+        destinationBuffer += sizeof(numFrustums);
 
-    for (const auto& view : _conicalViews) {
-        destinationBuffer += view.serialize(destinationBuffer);
+        for (const auto& view : _conicalViews) {
+            destinationBuffer += view.serialize(destinationBuffer);
+        }
+
+        avatarPacket->setPayloadSize(destinationBuffer - bufferStart);
+
+        DependencyManager::get<NodeList>()->broadcastToNodes(std::move(avatarPacket), NodeSet() << NodeType::AvatarMixer);
     }
-
-    avatarPacket->setPayloadSize(destinationBuffer - bufferStart);
-
-    DependencyManager::get<NodeList>()->broadcastToNodes(std::move(avatarPacket), NodeSet() << NodeType::AvatarMixer);
 }
 
 
@@ -6352,6 +6397,7 @@ void Application::clearDomainOctreeDetails() {
     qCDebug(interfaceapp) << "Clearing domain octree details...";
 
     resetPhysicsReadyInformation();
+    setIsInterstitialMode(true);
 
     _octreeServerSceneStats.withWriteLock([&] {
         _octreeServerSceneStats.clear();
@@ -6437,11 +6483,11 @@ void Application::nodeActivated(SharedNodePointer node) {
         _octreeQuery.incrementConnectionID();
     }
 
-    if (node->getType() == NodeType::AudioMixer) {
+    if (node->getType() == NodeType::AudioMixer && !isInterstitialMode()) {
         DependencyManager::get<AudioClient>()->negotiateAudioFormat();
     }
 
-    if (node->getType() == NodeType::AvatarMixer) {
+    if (node->getType() == NodeType::AvatarMixer && !isInterstitialMode()) {
         _queryExpiry = SteadyClock::now();
 
         // new avatar mixer, send off our identity packet on next update loop
@@ -6558,6 +6604,7 @@ bool Application::nearbyEntitiesAreReadyForPhysics() {
     _nearbyEntitiesCountAtLastPhysicsCheck = nearbyCount;
 
     const uint32_t MINIMUM_NEARBY_ENTITIES_STABILITY_COUNT = 3;
+    uint32_t readyNearbyEntities = 0;
     if (_nearbyEntitiesStabilityCount >= MINIMUM_NEARBY_ENTITIES_STABILITY_COUNT) {
         // We've seen the same number of nearby entities for several stats packets in a row.  assume we've got all
         // the local entities.
@@ -6567,8 +6614,11 @@ bool Application::nearbyEntitiesAreReadyForPhysics() {
                 HIFI_FCDEBUG(interfaceapp(), "Physics disabled until entity loads: " << entity->getID() << entity->getName());
                 // don't break here because we want all the relevant entities to start their downloads
                 result = false;
+            } else {
+                readyNearbyEntities++;
             }
         }
+        _nearbyEntitiesReadyCount = readyNearbyEntities;
         return result;
     }
     return false;
@@ -7809,7 +7859,7 @@ float Application::getRenderResolutionScale() const {
 }
 
 void Application::notifyPacketVersionMismatch() {
-    if (!_notifiedPacketVersionMismatchThisDomain) {
+    if (!_notifiedPacketVersionMismatchThisDomain && !isInterstitialMode()) {
         _notifiedPacketVersionMismatchThisDomain = true;
 
         QString message = "The location you are visiting is running an incompatible server version.\n";
diff --git a/interface/src/Application.h b/interface/src/Application.h
index 7fe88e9b6a..35f998a04d 100644
--- a/interface/src/Application.h
+++ b/interface/src/Application.h
@@ -224,11 +224,17 @@ public:
     void setHmdTabletBecomesToolbarSetting(bool value);
     bool getPreferStylusOverLaser() { return _preferStylusOverLaserSetting.get(); }
     void setPreferStylusOverLaser(bool value);
+
+    uint32_t getEntitiesStabilityCount() { return _nearbyEntitiesStabilityCount; }
+    uint32_t getNearbyEntitiesReadyCount() { return _nearbyEntitiesReadyCount; }
+    uint32_t getNearbyEntitiesCount() { return _nearbyEntitiesCountAtLastPhysicsCheck; }
     // FIXME: Remove setting completely or make available through JavaScript API?
     //bool getPreferAvatarFingerOverStylus() { return _preferAvatarFingerOverStylusSetting.get(); }
     bool getPreferAvatarFingerOverStylus() { return false; }
     void setPreferAvatarFingerOverStylus(bool value);
 
+    float getDomainLoadingProgress() { return _octreeProcessor.domainLoadingProgress(); }
+
     float getSettingConstrainToolbarPosition() { return _constrainToolbarPosition.get(); }
     void setSettingConstrainToolbarPosition(bool setting);
 
@@ -304,6 +310,7 @@ public:
     void saveNextPhysicsStats(QString filename);
 
     bool isServerlessMode() const;
+    bool isInterstitialMode() const;
 
     void replaceDomainContent(const QString& url);
 
@@ -330,6 +337,7 @@ signals:
     void activeDisplayPluginChanged();
 
     void uploadRequest(QString path);
+    void interstitialModeChanged(bool interstitialMode);
 
 public slots:
     QVector<EntityItemID> pasteEntities(float x, float y, float z);
@@ -427,6 +435,8 @@ public slots:
 
     void setIsServerlessMode(bool serverlessDomain);
     void loadServerlessDomain(QUrl domainURL, bool errorDomain = false);
+    void setIsInterstitialMode(bool interstialMode);
+    void loadServerlessDomain(QUrl domainURL);
 
     void updateVerboseLogging();
 
@@ -627,6 +637,7 @@ private:
     QHash<int, QKeyEvent> _keysPressed;
 
     bool _enableProcessOctreeThread;
+    bool _interstitialMode { false };
 
     OctreePacketProcessor _octreeProcessor;
     EntityEditPacketSender _entityEditSender;
@@ -722,6 +733,7 @@ private:
     uint32_t _fullSceneCounterAtLastPhysicsCheck { 0 }; // _fullSceneReceivedCounter last time we checked physics ready
     uint32_t _nearbyEntitiesCountAtLastPhysicsCheck { 0 }; // how many in-range entities last time we checked physics ready
     uint32_t _nearbyEntitiesStabilityCount { 0 }; // how many times has _nearbyEntitiesCountAtLastPhysicsCheck been the same
+    uint32_t _nearbyEntitiesReadyCount { 0 };
     quint64 _lastPhysicsCheckTime { usecTimestampNow() }; // when did we last check to see if physics was ready
 
     bool _keyboardDeviceHasFocus { true };
diff --git a/interface/src/Menu.cpp b/interface/src/Menu.cpp
index a6ba983ab5..15898a73b1 100644
--- a/interface/src/Menu.cpp
+++ b/interface/src/Menu.cpp
@@ -787,6 +787,7 @@ Menu::Menu() {
 
     // Developer > Show Overlays
     addCheckableActionToQMenuAndActionHash(developerMenu, MenuOption::Overlays, 0, true);
+    addCheckableActionToQMenuAndActionHash(developerMenu, "Enable Interstitial", 0, false);
 
 #if 0 ///  -------------- REMOVED FOR NOW --------------
     addDisabledActionAndSeparator(navigateMenu, "History");
diff --git a/interface/src/avatar/AvatarManager.cpp b/interface/src/avatar/AvatarManager.cpp
index 9a7d8ef0c8..f579b51d0d 100644
--- a/interface/src/avatar/AvatarManager.cpp
+++ b/interface/src/avatar/AvatarManager.cpp
@@ -137,7 +137,7 @@ void AvatarManager::updateMyAvatar(float deltaTime) {
     quint64 now = usecTimestampNow();
     quint64 dt = now - _lastSendAvatarDataTime;
 
-    if (dt > MIN_TIME_BETWEEN_MY_AVATAR_DATA_SENDS) {
+    if (dt > MIN_TIME_BETWEEN_MY_AVATAR_DATA_SENDS && !qApp->isInterstitialMode()) {
         // send head/hand data to the avatar mixer and voxel server
         PerformanceTimer perfTimer("send");
         _myAvatar->sendAvatarDataPacket();
@@ -808,13 +808,13 @@ void AvatarManager::setAvatarSortCoefficient(const QString& name, const QScriptV
         QString currentSessionUUID = avatar->getSessionUUID().toString();
         if (specificAvatarIdentifiers.isEmpty() || specificAvatarIdentifiers.contains(currentSessionUUID)) {
             QJsonObject thisAvatarPalData;
-            
+
             auto myAvatar = DependencyManager::get<AvatarManager>()->getMyAvatar();
 
             if (currentSessionUUID == myAvatar->getSessionUUID().toString()) {
                 currentSessionUUID = "";
             }
-            
+
             thisAvatarPalData.insert("sessionUUID", currentSessionUUID);
             thisAvatarPalData.insert("sessionDisplayName", avatar->getSessionDisplayName());
             thisAvatarPalData.insert("audioLoudness", avatar->getAudioLoudness());
diff --git a/interface/src/octree/OctreePacketProcessor.cpp b/interface/src/octree/OctreePacketProcessor.cpp
index 4bc6817a9e..e670153a77 100644
--- a/interface/src/octree/OctreePacketProcessor.cpp
+++ b/interface/src/octree/OctreePacketProcessor.cpp
@@ -137,3 +137,11 @@ void OctreePacketProcessor::startEntitySequence() {
 bool OctreePacketProcessor::isLoadSequenceComplete() const {
     return _safeLanding->isLoadSequenceComplete();
 }
+
+bool OctreePacketProcessor::isEntitiesRenderReady() const {
+    return _safeLanding->entitiesRenderReady();
+}
+
+float OctreePacketProcessor::domainLoadingProgress() {
+    return _safeLanding->loadingProgressPercentage();
+}
diff --git a/interface/src/octree/OctreePacketProcessor.h b/interface/src/octree/OctreePacketProcessor.h
index f9c24ddc51..71e22bf240 100644
--- a/interface/src/octree/OctreePacketProcessor.h
+++ b/interface/src/octree/OctreePacketProcessor.h
@@ -27,6 +27,8 @@ public:
 
     void startEntitySequence();
     bool isLoadSequenceComplete() const;
+    bool isEntitiesRenderReady() const;
+    float domainLoadingProgress();
 
 signals:
     void packetVersionMismatch();
diff --git a/interface/src/octree/SafeLanding.cpp b/interface/src/octree/SafeLanding.cpp
index 60b660f66a..6b7a0f582c 100644
--- a/interface/src/octree/SafeLanding.cpp
+++ b/interface/src/octree/SafeLanding.cpp
@@ -13,6 +13,7 @@
 #include "EntityTreeRenderer.h"
 #include "ModelEntityItem.h"
 #include "InterfaceLogging.h"
+#include "Application.h"
 
 const int SafeLanding::SEQUENCE_MODULO = std::numeric_limits<OCTREE_PACKET_SEQUENCE>::max() + 1;
 
@@ -36,6 +37,7 @@ void SafeLanding::startEntitySequence(QSharedPointer<EntityTreeRenderer> entityT
     if (entityTree) {
         Locker lock(_lock);
         _entityTree = entityTree;
+        _trackedEntitiesRenderStatus.clear();
         _trackedEntities.clear();
         _trackingEntities = true;
         connect(std::const_pointer_cast<EntityTree>(_entityTree).get(),
@@ -53,6 +55,7 @@ void SafeLanding::startEntitySequence(QSharedPointer<EntityTreeRenderer> entityT
 void SafeLanding::stopEntitySequence() {
     Locker lock(_lock);
     _trackingEntities = false;
+    _maxTrackedEntityCount = 0;
     _initialStart = INVALID_SEQUENCE;
     _initialEnd = INVALID_SEQUENCE;
     _trackedEntities.clear();
@@ -79,12 +82,20 @@ void SafeLanding::addTrackedEntity(const EntityItemID& entityID) {
                 }
             }
         }
+
+        _trackedEntitiesRenderStatus.emplace(entityID, entity);
+        float trackedEntityCount = (float)_trackedEntitiesRenderStatus.size();
+
+        if (trackedEntityCount > _maxTrackedEntityCount) {
+            _maxTrackedEntityCount = trackedEntityCount;
+        }
     }
 }
 
 void SafeLanding::deleteTrackedEntity(const EntityItemID& entityID) {
     Locker lock(_lock);
     _trackedEntities.erase(entityID);
+    _trackedEntitiesRenderStatus.erase(entityID);
 }
 
 void SafeLanding::setCompletionSequenceNumbers(int first, int last) {
@@ -116,6 +127,16 @@ bool SafeLanding::isLoadSequenceComplete() {
     return !_trackingEntities;
 }
 
+float SafeLanding::loadingProgressPercentage() {
+    Locker lock(_lock);
+    if (_maxTrackedEntityCount > 0) {
+        float trackedEntityCount = (float)_trackedEntitiesRenderStatus.size();
+        return ((_maxTrackedEntityCount - trackedEntityCount) / _maxTrackedEntityCount);
+    }
+
+    return 0.0f;
+}
+
 bool SafeLanding::isSequenceNumbersComplete() {
     if (_initialStart != INVALID_SEQUENCE) {
         Locker lock(_lock);
@@ -148,6 +169,24 @@ bool SafeLanding::isEntityPhysicsComplete() {
     return _trackedEntities.empty();
 }
 
+bool SafeLanding::entitiesRenderReady() {
+    Locker lock(_lock);
+    auto entityTree = qApp->getEntities();
+    for (auto entityMapIter = _trackedEntitiesRenderStatus.begin(); entityMapIter != _trackedEntitiesRenderStatus.end(); ++entityMapIter) {
+        auto entity = entityMapIter->second;
+        bool visuallyReady = entity->isVisuallyReady();
+        if (visuallyReady || !entityTree->renderableForEntityId(entityMapIter->first)) {
+            entityMapIter = _trackedEntitiesRenderStatus.erase(entityMapIter);
+            if (entityMapIter == _trackedEntitiesRenderStatus.end()) {
+                break;
+            }
+        } else {
+            entity->requestRenderUpdate();
+        }
+    }
+    return _trackedEntitiesRenderStatus.empty();
+}
+
 float SafeLanding::ElevatedPriority(const EntityItem& entityItem) {
     return entityItem.getCollisionless() ? 0.0f : 10.0f;
 }
diff --git a/interface/src/octree/SafeLanding.h b/interface/src/octree/SafeLanding.h
index 9177930d81..611b75ab79 100644
--- a/interface/src/octree/SafeLanding.h
+++ b/interface/src/octree/SafeLanding.h
@@ -18,6 +18,7 @@
 #include <QtCore/QSharedPointer>
 
 #include "EntityItem.h"
+#include "EntityDynamicInterface.h"
 
 class EntityTreeRenderer;
 class EntityItemID;
@@ -29,6 +30,8 @@ public:
     void setCompletionSequenceNumbers(int first, int last);  // 'last' exclusive.
     void noteReceivedsequenceNumber(int sequenceNumber);
     bool isLoadSequenceComplete();
+    bool entitiesRenderReady();
+    float loadingProgressPercentage();
 
 private slots:
     void addTrackedEntity(const EntityItemID& entityID);
@@ -45,10 +48,12 @@ private:
     EntityTreePointer _entityTree;
     using EntityMap = std::map<EntityItemID, EntityItemPointer>;
     EntityMap _trackedEntities;
+    EntityMap _trackedEntitiesRenderStatus;
 
     static constexpr int INVALID_SEQUENCE = -1;
     int _initialStart { INVALID_SEQUENCE };
     int _initialEnd { INVALID_SEQUENCE };
+    float _maxTrackedEntityCount { 0.0f };
 
     struct SequenceLessThan {
         bool operator()(const int& a, const int& b) const;
diff --git a/interface/src/scripting/WindowScriptingInterface.cpp b/interface/src/scripting/WindowScriptingInterface.cpp
index ba86925581..9e13e2affb 100644
--- a/interface/src/scripting/WindowScriptingInterface.cpp
+++ b/interface/src/scripting/WindowScriptingInterface.cpp
@@ -584,3 +584,8 @@ void WindowScriptingInterface::onMessageBoxSelected(int button) {
         _messageBoxes.remove(id);
     }
 }
+
+
+float WindowScriptingInterface::domainLoadingProgress() {
+    return qApp->getDomainLoadingProgress();
+}
diff --git a/interface/src/scripting/WindowScriptingInterface.h b/interface/src/scripting/WindowScriptingInterface.h
index 77895e0e76..626d142785 100644
--- a/interface/src/scripting/WindowScriptingInterface.h
+++ b/interface/src/scripting/WindowScriptingInterface.h
@@ -561,6 +561,8 @@ public slots:
      */
     void closeMessageBox(int id);
 
+    float domainLoadingProgress();
+
 private slots:
     void onWindowGeometryChanged(const QRect& geometry);
     void onMessageBoxSelected(int button);
diff --git a/interface/src/ui/Stats.cpp b/interface/src/ui/Stats.cpp
index 8434545f22..de73ac0b2f 100644
--- a/interface/src/ui/Stats.cpp
+++ b/interface/src/ui/Stats.cpp
@@ -106,6 +106,10 @@ extern std::atomic<size_t> DECIMATED_TEXTURE_COUNT;
 extern std::atomic<size_t> RECTIFIED_TEXTURE_COUNT;
 
 void Stats::updateStats(bool force) {
+
+    if (qApp->isInterstitialMode()) {
+        return;
+    }
     QQuickItem* parent = parentItem();
     if (!force) {
         if (!Menu::getInstance()->isOptionChecked(MenuOption::Stats)) {
diff --git a/libraries/audio-client/src/AudioClient.cpp b/libraries/audio-client/src/AudioClient.cpp
index 6a9363f309..7af8a05f25 100644
--- a/libraries/audio-client/src/AudioClient.cpp
+++ b/libraries/audio-client/src/AudioClient.cpp
@@ -651,7 +651,6 @@ void AudioClient::stop() {
 }
 
 void AudioClient::handleAudioEnvironmentDataPacket(QSharedPointer<ReceivedMessage> message) {
-
     char bitset;
     message->readPrimitive(&bitset);
 
@@ -664,11 +663,10 @@ void AudioClient::handleAudioEnvironmentDataPacket(QSharedPointer<ReceivedMessag
         _receivedAudioStream.setReverb(reverbTime, wetLevel);
     } else {
         _receivedAudioStream.clearReverb();
-   }
+    }
 }
 
 void AudioClient::handleAudioDataPacket(QSharedPointer<ReceivedMessage> message) {
-
     if (message->getType() == PacketType::SilentAudioFrame) {
         _silentInbound.increment();
     } else {
@@ -1026,80 +1024,82 @@ void AudioClient::handleLocalEchoAndReverb(QByteArray& inputByteArray) {
 }
 
 void AudioClient::handleAudioInput(QByteArray& audioBuffer) {
-    if (_muted) {
-        _lastInputLoudness = 0.0f;
-        _timeSinceLastClip = 0.0f;
-    } else {
-        int16_t* samples = reinterpret_cast<int16_t*>(audioBuffer.data());
-        int numSamples = audioBuffer.size() / AudioConstants::SAMPLE_SIZE;
-        int numFrames = numSamples / (_isStereoInput ? AudioConstants::STEREO : AudioConstants::MONO);
-
-        if (_isNoiseGateEnabled) {
-            // The audio gate includes DC removal
-            _audioGate->render(samples, samples, numFrames);
-        } else {
-            _audioGate->removeDC(samples, samples, numFrames);
-        }
-
-        int32_t loudness = 0;
-        assert(numSamples < 65536); // int32_t loudness cannot overflow
-        bool didClip = false;
-        for (int i = 0; i < numSamples; ++i) {
-            const int32_t CLIPPING_THRESHOLD = (int32_t)(AudioConstants::MAX_SAMPLE_VALUE * 0.9f);
-            int32_t sample = std::abs((int32_t)samples[i]);
-            loudness += sample;
-            didClip |= (sample > CLIPPING_THRESHOLD);
-        }
-        _lastInputLoudness = (float)loudness / numSamples;
-
-        if (didClip) {
+    if (!_interstitialMode) {
+        if (_muted) {
+            _lastInputLoudness = 0.0f;
             _timeSinceLastClip = 0.0f;
-        } else if (_timeSinceLastClip >= 0.0f) {
-            _timeSinceLastClip += (float)numSamples / (float)AudioConstants::SAMPLE_RATE;
+        } else {
+            int16_t* samples = reinterpret_cast<int16_t*>(audioBuffer.data());
+            int numSamples = audioBuffer.size() / AudioConstants::SAMPLE_SIZE;
+            int numFrames = numSamples / (_isStereoInput ? AudioConstants::STEREO : AudioConstants::MONO);
+
+            if (_isNoiseGateEnabled) {
+                // The audio gate includes DC removal
+                _audioGate->render(samples, samples, numFrames);
+            } else {
+                _audioGate->removeDC(samples, samples, numFrames);
+            }
+
+            int32_t loudness = 0;
+            assert(numSamples < 65536); // int32_t loudness cannot overflow
+            bool didClip = false;
+            for (int i = 0; i < numSamples; ++i) {
+                const int32_t CLIPPING_THRESHOLD = (int32_t)(AudioConstants::MAX_SAMPLE_VALUE * 0.9f);
+                int32_t sample = std::abs((int32_t)samples[i]);
+                loudness += sample;
+                didClip |= (sample > CLIPPING_THRESHOLD);
+            }
+            _lastInputLoudness = (float)loudness / numSamples;
+
+            if (didClip) {
+                _timeSinceLastClip = 0.0f;
+            } else if (_timeSinceLastClip >= 0.0f) {
+                _timeSinceLastClip += (float)numSamples / (float)AudioConstants::SAMPLE_RATE;
+            }
+
+            emit inputReceived(audioBuffer);
         }
 
-        emit inputReceived(audioBuffer);
+        emit inputLoudnessChanged(_lastInputLoudness);
+
+        // state machine to detect gate opening and closing
+        bool audioGateOpen = (_lastInputLoudness != 0.0f);
+        bool openedInLastBlock = !_audioGateOpen && audioGateOpen;  // the gate just opened
+        bool closedInLastBlock = _audioGateOpen && !audioGateOpen;  // the gate just closed
+        _audioGateOpen = audioGateOpen;
+
+        if (openedInLastBlock) {
+            emit noiseGateOpened();
+        } else if (closedInLastBlock) {
+            emit noiseGateClosed();
+        }
+
+        // the codec must be flushed to silence before sending silent packets,
+        // so delay the transition to silent packets by one packet after becoming silent.
+        auto packetType = _shouldEchoToServer ? PacketType::MicrophoneAudioWithEcho : PacketType::MicrophoneAudioNoEcho;
+        if (!audioGateOpen && !closedInLastBlock) {
+            packetType = PacketType::SilentAudioFrame;
+            _silentOutbound.increment();
+        } else {
+            _audioOutbound.increment();
+        }
+
+        Transform audioTransform;
+        audioTransform.setTranslation(_positionGetter());
+        audioTransform.setRotation(_orientationGetter());
+
+        QByteArray encodedBuffer;
+        if (_encoder) {
+            _encoder->encode(audioBuffer, encodedBuffer);
+        } else {
+            encodedBuffer = audioBuffer;
+        }
+
+        emitAudioPacket(encodedBuffer.data(), encodedBuffer.size(), _outgoingAvatarAudioSequenceNumber, _isStereoInput,
+                        audioTransform, avatarBoundingBoxCorner, avatarBoundingBoxScale,
+                        packetType, _selectedCodecName);
+        _stats.sentPacket();
     }
-
-    emit inputLoudnessChanged(_lastInputLoudness);
-
-    // state machine to detect gate opening and closing
-    bool audioGateOpen = (_lastInputLoudness != 0.0f);
-    bool openedInLastBlock = !_audioGateOpen && audioGateOpen;  // the gate just opened
-    bool closedInLastBlock = _audioGateOpen && !audioGateOpen;  // the gate just closed
-    _audioGateOpen = audioGateOpen;
-
-    if (openedInLastBlock) {
-        emit noiseGateOpened();
-    } else if (closedInLastBlock) {
-        emit noiseGateClosed();
-    }
-
-    // the codec must be flushed to silence before sending silent packets,
-    // so delay the transition to silent packets by one packet after becoming silent.
-    auto packetType = _shouldEchoToServer ? PacketType::MicrophoneAudioWithEcho : PacketType::MicrophoneAudioNoEcho;
-    if (!audioGateOpen && !closedInLastBlock) {
-        packetType = PacketType::SilentAudioFrame;
-        _silentOutbound.increment();
-    } else {
-        _audioOutbound.increment();
-    }
-
-    Transform audioTransform;
-    audioTransform.setTranslation(_positionGetter());
-    audioTransform.setRotation(_orientationGetter());
-
-    QByteArray encodedBuffer;
-    if (_encoder) {
-        _encoder->encode(audioBuffer, encodedBuffer);
-    } else {
-        encodedBuffer = audioBuffer;
-    }
-
-    emitAudioPacket(encodedBuffer.data(), encodedBuffer.size(), _outgoingAvatarAudioSequenceNumber, _isStereoInput,
-            audioTransform, avatarBoundingBoxCorner, avatarBoundingBoxScale,
-            packetType, _selectedCodecName);
-    _stats.sentPacket();
 }
 
 void AudioClient::handleMicAudioInput() {
diff --git a/libraries/audio-client/src/AudioClient.h b/libraries/audio-client/src/AudioClient.h
index 8599c990a3..90860798b3 100644
--- a/libraries/audio-client/src/AudioClient.h
+++ b/libraries/audio-client/src/AudioClient.h
@@ -187,6 +187,7 @@ public slots:
     void handleRecordedAudioInput(const QByteArray& audio);
     void reset();
     void audioMixerKilled();
+    void setInterstitialStatus(bool interstitialMode) { _interstitialMode = interstitialMode; }
 
     void setMuted(bool muted, bool emitSignal = true);
     bool isMuted() { return _muted; }
@@ -416,6 +417,7 @@ private:
     QVector<AudioInjectorPointer> _activeLocalAudioInjectors;
 
     bool _isPlayingBackRecording { false };
+    bool _interstitialMode { true };
 
     CodecPluginPointer _codec;
     QString _selectedCodecName;
diff --git a/libraries/entities-renderer/src/RenderableModelEntityItem.cpp b/libraries/entities-renderer/src/RenderableModelEntityItem.cpp
index 34936c2c48..8be5b172ce 100644
--- a/libraries/entities-renderer/src/RenderableModelEntityItem.cpp
+++ b/libraries/entities-renderer/src/RenderableModelEntityItem.cpp
@@ -1297,9 +1297,20 @@ void ModelEntityRenderer::doRenderUpdateSynchronousTyped(const ScenePointer& sce
         }
     });
 
-    // Check for removal
     ModelPointer model;
     withReadLock([&] { model = _model; });
+
+    withWriteLock([&] {
+        bool visuallyReady = true;
+        if (_hasModel) {
+            if (model && _didLastVisualGeometryRequestSucceed) {
+                visuallyReady = (_prevModelLoaded && _texturesLoaded);
+            }
+        }
+        entity->setVisuallyReady(visuallyReady);
+    });
+
+    // Check for removal
     if (!_hasModel) {
         if (model) {
             model->removeFromScene(scene, transaction);
@@ -1441,11 +1452,11 @@ void ModelEntityRenderer::doRenderUpdateSynchronousTyped(const ScenePointer& sce
     // That is where _currentFrame and _lastAnimated were updated.
     if (_animating) {
         DETAILED_PROFILE_RANGE(simulation_physics, "Animate");
-        
+
         if (!jointsMapped()) {
             mapJoints(entity, model->getJointNames());
         //else the joint have been mapped before but we have a new animation to load
-        } else if (_animation && (_animation->getURL().toString() != entity->getAnimationURL())) {             
+        } else if (_animation && (_animation->getURL().toString() != entity->getAnimationURL())) {
             _animation = DependencyManager::get<AnimationCache>()->getAnimation(entity->getAnimationURL());
             _jointMappingCompleted = false;
             mapJoints(entity, model->getJointNames());
diff --git a/libraries/entities-renderer/src/RenderableZoneEntityItem.cpp b/libraries/entities-renderer/src/RenderableZoneEntityItem.cpp
index 9430e97e54..cf452c9cf7 100644
--- a/libraries/entities-renderer/src/RenderableZoneEntityItem.cpp
+++ b/libraries/entities-renderer/src/RenderableZoneEntityItem.cpp
@@ -288,6 +288,17 @@ void ZoneEntityRenderer::doRenderUpdateSynchronousTyped(const ScenePointer& scen
         updateHazeFromEntity(entity);
     }
 
+
+    bool visuallyReady = true;
+    uint32_t skyboxMode = entity->getSkyboxMode();
+    if (skyboxMode == COMPONENT_MODE_ENABLED && !_skyboxTextureURL.isEmpty()) {
+        bool skyboxLoadedOrFailed = (_skyboxTexture && (_skyboxTexture->isLoaded() || _skyboxTexture->isFailed()));
+
+        visuallyReady = skyboxLoadedOrFailed;
+    }
+
+    entity->setVisuallyReady(visuallyReady);
+
     if (bloomChanged) {
         updateBloomFromEntity(entity);
     }
diff --git a/libraries/entities/src/EntityItem.h b/libraries/entities/src/EntityItem.h
index 47ae8de9ad..490f9b9e6b 100644
--- a/libraries/entities/src/EntityItem.h
+++ b/libraries/entities/src/EntityItem.h
@@ -305,6 +305,7 @@ public:
     void setDynamic(bool value);
 
     virtual bool shouldBePhysical() const { return false; }
+    bool isVisuallyReady() const { return _visuallyReady; }
 
     bool getLocked() const;
     void setLocked(bool value);
@@ -527,6 +528,7 @@ public:
     void removeCloneID(const QUuid& cloneID);
     const QVector<QUuid> getCloneIDs() const;
     void setCloneIDs(const QVector<QUuid>& cloneIDs);
+    void setVisuallyReady(bool visuallyReady) { _visuallyReady = visuallyReady; }
 
 signals:
     void requestRenderUpdate();
@@ -639,6 +641,7 @@ protected:
     EntityTreeElementPointer _element; // set by EntityTreeElement
     void* _physicsInfo { nullptr }; // set by EntitySimulation
     bool _simulated { false }; // set by EntitySimulation
+    bool _visuallyReady { true };
 
     bool addActionInternal(EntitySimulationPointer simulation, EntityDynamicPointer action);
     bool removeActionInternal(const QUuid& actionID, EntitySimulationPointer simulation = nullptr);
diff --git a/libraries/entities/src/ModelEntityItem.cpp b/libraries/entities/src/ModelEntityItem.cpp
index 5d5344c9c8..774559a628 100644
--- a/libraries/entities/src/ModelEntityItem.cpp
+++ b/libraries/entities/src/ModelEntityItem.cpp
@@ -40,6 +40,7 @@ ModelEntityItem::ModelEntityItem(const EntityItemID& entityItemID) : EntityItem(
     _type = EntityTypes::Model;
     _lastKnownCurrentFrame = -1;
     _color[0] = _color[1] = _color[2] = 0;
+    _visuallyReady = false;
 }
 
 const QString ModelEntityItem::getTextures() const {
diff --git a/libraries/entities/src/ZoneEntityItem.cpp b/libraries/entities/src/ZoneEntityItem.cpp
index a7dfa1a41e..c0ae61fdba 100644
--- a/libraries/entities/src/ZoneEntityItem.cpp
+++ b/libraries/entities/src/ZoneEntityItem.cpp
@@ -42,6 +42,7 @@ ZoneEntityItem::ZoneEntityItem(const EntityItemID& entityItemID) : EntityItem(en
 
     _shapeType = DEFAULT_SHAPE_TYPE;
     _compoundShapeURL = DEFAULT_COMPOUND_SHAPE_URL;
+    _visuallyReady = false;
 }
 
 EntityItemProperties ZoneEntityItem::getProperties(EntityPropertyFlags desiredProperties) const {
diff --git a/scripts/defaultScripts.js b/scripts/defaultScripts.js
index b275660c0f..c333a0c8c2 100644
--- a/scripts/defaultScripts.js
+++ b/scripts/defaultScripts.js
@@ -34,7 +34,7 @@ var DEFAULT_SCRIPTS_COMBINED = [
     "system/emote.js"
 ];
 var DEFAULT_SCRIPTS_SEPARATE = [
-    "system/controllers/controllerScripts.js",
+    "system/controllers/controllerScripts.js"
     //"system/chat.js"
 ];
 
diff --git a/scripts/system/interstitialPage.js b/scripts/system/interstitialPage.js
new file mode 100644
index 0000000000..86a9e744e9
--- /dev/null
+++ b/scripts/system/interstitialPage.js
@@ -0,0 +1,456 @@
+//
+//  interstitialPage.js
+//  scripts/system
+//
+//  Created by Dante Ruiz on 08/02/2018.
+//  Copyright 2012 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+/* global Script, Controller, Overlays, Quat, MyAvatar, Entities, print, Vec3, AddressManager, Render, Window, Toolbars,
+   Camera, HMD, location, Account, Xform*/
+
+(function() {
+    Script.include("/~/system/libraries/Xform.js");
+    var DEBUG = false;
+    var MAX_X_SIZE = 3.8;
+    var EPSILON = 0.01;
+    var isVisible = false;
+    var VOLUME = 0.4;
+    var tune = SoundCache.getSound("http://hifi-content.s3.amazonaws.com/alexia/LoadingScreens/crystals_and_voices.wav");
+    var sample = null;
+    var MAX_LEFT_MARGIN = 1.9;
+    var INNER_CIRCLE_WIDTH = 4.7;
+    var DEFAULT_Z_OFFSET = 5.45;
+    var previousCameraMode = Camera.mode;
+
+    var renderViewTask = Render.getConfig("RenderMainView");
+    var toolbar = Toolbars.getToolbar("com.highfidelity.interface.toolbar.system");
+    var request = Script.require('request').request;
+    var BUTTON_PROPERTIES = {
+        text: "Interstitial"
+    };
+
+    var tablet = null;
+    var button = null;
+
+    // Tips have a character limit of 69
+    var userTips = [
+        "Tip: Visit TheSpot to explore featured domains!",
+        "Tip: Visit our docs online to learn more about scripting!",
+        "Tip: Don't want others invading your personal space? Turn on the Bubble!",
+        "Tip: Want to make a friend? Shake hands with them in VR!",
+        "Tip: Enjoy live music? Visit Rust to dance your heart out!",
+        "Tip: Have you visited BodyMart to check out the new avatars recently?",
+        "Tip: Use the Create app to import models and create custom entities.",
+        "Tip: We're open source! Feel free to contribute to our code on GitHub!",
+        "Tip: What emotes have you used in the Emote app?",
+        "Tip: Take and share your snapshots with the everyone using the Snap app.",
+        "Tip: Did you know you can show websites in-world by creating a web entity?",
+        "Tip: Find out more information about domains by visiting our website!",
+        "Tip: Did you know you can get cool new apps from the Marketplace?",
+        "Tip: Print your snapshots from the Snap app to share with others!",
+        "Tip: Log in to make friends, visit new domains, and save avatars!"
+    ];
+
+    var DEFAULT_DIMENSIONS = { x: 20, y: 20, z: 20 };
+
+    var loadingSphereID = Overlays.addOverlay("model", {
+        name: "Loading-Sphere",
+        position: Vec3.sum(Vec3.sum(MyAvatar.position, {x: 0.0, y: -1.0, z: 0.0}), Vec3.multiplyQbyV(MyAvatar.orientation, {x: 0, y: 0.95, z: 0})),
+        orientation: Quat.multiply(Quat.fromVec3Degrees({x: 0, y: 180, z: 0}), MyAvatar.orientation),
+        url: "http://hifi-content.s3.amazonaws.com/alexia/LoadingScreens/black-sphere.fbx",
+        dimensions: DEFAULT_DIMENSIONS,
+        alpha: 1,
+        visible: isVisible,
+        ignoreRayIntersection: true,
+        drawInFront: true,
+        grabbable: false,
+        parentID: MyAvatar.SELF_ID
+    });
+
+    var anchorOverlay = Overlays.addOverlay("cube", {
+        dimensions: {x: 0.2, y: 0.2, z: 0.2},
+        visible: false,
+        grabbable: false,
+        ignoreRayIntersection: true,
+        localPosition: {x: 0.0, y: getAnchorLocalYOffset(), z: DEFAULT_Z_OFFSET },
+        orientation: Quat.multiply(Quat.fromVec3Degrees({x: 0, y: 180, z: 0}), MyAvatar.orientation),
+        solid: true,
+        drawInFront: true,
+        parentID: loadingSphereID
+    });
+
+
+    var domainName = "";
+    var domainNameTextID = Overlays.addOverlay("text3d", {
+        name: "Loading-Destination-Card-Text",
+        localPosition: { x: 0.0, y: 0.8, z: 0.0 },
+        text: domainName,
+        textAlpha: 1,
+        backgroundAlpha: 0,
+        lineHeight: 0.42,
+        visible: isVisible,
+        ignoreRayIntersection: true,
+        drawInFront: true,
+        grabbable: false,
+        localOrientation: Quat.fromVec3Degrees({ x: 0, y: 180, z: 0 }),
+        parentID: anchorOverlay
+    });
+
+    var domainText = "";
+    var domainDescription = Overlays.addOverlay("text3d", {
+        name: "Loading-Hostname",
+        localPosition: { x: 0.0, y: 0.32, z: 0.0 },
+        text: domainText,
+        textAlpha: 1,
+        backgroundAlpha: 0,
+        lineHeight: 0.13,
+        visible: isVisible,
+        ignoreRayIntersection: true,
+        drawInFront: true,
+        grabbable: false,
+        localOrientation: Quat.fromVec3Degrees({ x: 0, y: 180, z: 0 }),
+        parentID: anchorOverlay
+    });
+
+    var toolTip = "";
+
+    var domainToolTip = Overlays.addOverlay("text3d", {
+        name: "Loading-Tooltip",
+        localPosition: { x: 0.0 , y: -1.6, z: 0.0 },
+        text: toolTip,
+        textAlpha: 1,
+        backgroundAlpha: 0,
+        lineHeight: 0.13,
+        visible: isVisible,
+        ignoreRayIntersection: true,
+        drawInFront: true,
+        grabbable: false,
+        localOrientation: Quat.fromVec3Degrees({ x: 0, y: 180, z: 0 }),
+        parentID: anchorOverlay
+    });
+
+    var loadingToTheSpotID = Overlays.addOverlay("image3d", {
+        name: "Loading-Destination-Card-Text",
+        localPosition: { x: 0.0 , y: -1.8, z: 0.0 },
+        url: "http://hifi-content.s3.amazonaws.com/alexia/LoadingScreens/goTo_button.png",
+        alpha: 1,
+        dimensions: { x: 1.2, y: 0.6},
+        visible: isVisible,
+        emissive: true,
+        ignoreRayIntersection: false,
+        drawInFront: true,
+        grabbable: false,
+        localOrientation: Quat.fromVec3Degrees({ x: 0.0, y: 180.0, z: 0.0 }),
+        parentID: anchorOverlay
+    });
+
+    var loadingBarPlacard = Overlays.addOverlay("image3d", {
+        name: "Loading-Bar-Placard",
+        localPosition: { x: 0.0, y: -0.99, z: 0.3 },
+        url: Script.resourcesPath() + "images/loadingBar_placard.png",
+        alpha: 1,
+        dimensions: { x: 4, y: 2.8},
+        visible: isVisible,
+        emissive: true,
+        ignoreRayIntersection: false,
+        drawInFront: true,
+        grabbable: false,
+        localOrientation: Quat.fromVec3Degrees({ x: 0.0, y: 180.0, z: 0.0 }),
+        parentID: anchorOverlay
+    });
+
+    var loadingBarProgress = Overlays.addOverlay("image3d", {
+        name: "Loading-Bar-Progress",
+        localPosition: { x: 0.0, y: -0.90, z: 0.0 },
+        url: Script.resourcesPath() + "images/loadingBar_progress.png",
+        alpha: 1,
+        dimensions: {x: 3.8, y: 2.8},
+        visible: isVisible,
+        emissive: true,
+        ignoreRayIntersection: false,
+        drawInFront: true,
+        grabbable: false,
+        localOrientation: Quat.fromVec3Degrees({ x: 0.0, y: 180.0, z: 0.0 }),
+        parentID: anchorOverlay
+    });
+
+    var TARGET_UPDATE_HZ = 60; // 50hz good enough, but we're using update
+    var BASIC_TIMER_INTERVAL_MS = 1000 / TARGET_UPDATE_HZ;
+    var lastInterval = Date.now();
+    var currentDomain = "no domain";
+    var timer = null;
+    var target = 0;
+
+    var connectionToDomainFailed = false;
+
+
+    function getAnchorLocalYOffset() {
+        var loadingSpherePosition = Overlays.getProperty(loadingSphereID, "position");
+        var loadingSphereOrientation = Overlays.getProperty(loadingSphereID, "rotation");
+        var overlayXform = new Xform(loadingSphereOrientation, loadingSpherePosition);
+        var worldToOverlayXform = overlayXform.inv();
+        var headPosition = MyAvatar.getHeadPosition();
+        var headPositionInOverlaySpace = worldToOverlayXform.xformPoint(headPosition);
+        return headPositionInOverlaySpace.y;
+    }
+
+    function getLeftMargin(overlayID, text) {
+        var textSize = Overlays.textSize(overlayID, text);
+        var sizeDifference = ((INNER_CIRCLE_WIDTH - textSize.width) / 2);
+        var leftMargin = -(MAX_LEFT_MARGIN - sizeDifference);
+        return leftMargin;
+    }
+
+    function lerp(a, b, t) {
+        return ((1 - t) * a + t * b);
+    }
+
+    function resetValues() {
+         var properties = {
+            localPosition: { x: 1.85, y: -0.935, z: 0.0 },
+            dimensions: {
+                x: 0.1,
+                y: 2.8
+            }
+        };
+
+        Overlays.editOverlay(loadingBarProgress, properties);
+    }
+
+    function startInterstitialPage() {
+        if (timer === null) {
+            updateOverlays(false);
+            startAudio();
+            target = 0;
+            currentProgress = 0.1;
+            connectionToDomainFailed = false;
+            previousCameraMode = Camera.mode;
+            Camera.mode = "first person";
+            timer = Script.setTimeout(update, BASIC_TIMER_INTERVAL_MS);
+        }
+    }
+
+    function startAudio() {
+        sample = Audio.playSound(tune, {
+            localOnly: true,
+            position: MyAvatar.getHeadPosition(),
+            volume: VOLUME
+        });
+    }
+
+    function endAudio() {
+        sample.stop();
+        sample = null;
+    }
+
+    function domainChanged(domain) {
+        print("domain changed: " + domain);
+        if (domain !== currentDomain) {
+            MyAvatar.restoreAnimation();
+            var name = location.placename;
+            domainName = name.charAt(0).toUpperCase() + name.slice(1);
+            var doRequest = true;
+            if (name.length === 0 && location.href === "file:///~/serverless/tutorial.json") {
+                domainName = "Serveless Domain (Tutorial)";
+                doRequest = false;
+            }
+            var domainNameLeftMargin = getLeftMargin(domainNameTextID, domainName);
+            var textProperties = {
+                text: domainName,
+                leftMargin: domainNameLeftMargin
+            };
+
+            if (doRequest) {
+                var url = Account.metaverseServerURL + '/api/v1/places/' + domain;
+                request({
+                    uri: url
+                }, function(error, data) {
+                    if (data.status === "success") {
+                        var domainInfo = data.data;
+                        var domainDescriptionText = domainInfo.place.description;
+                        print("domainText: " + domainDescriptionText);
+                        var leftMargin = getLeftMargin(domainDescription, domainDescriptionText);
+                        var domainDescriptionProperties = {
+                            text: domainDescriptionText,
+                            leftMargin: leftMargin
+                        };
+                        Overlays.editOverlay(domainDescription, domainDescriptionProperties);
+                    }
+                });
+            } else {
+                var domainDescriptionProperties = {
+                    text: ""
+                };
+                Overlays.editOverlay(domainDescription, domainDescriptionProperties);
+            }
+
+            var randomIndex = Math.floor(Math.random() * userTips.length);
+            var tip = userTips[randomIndex];
+            var tipLeftMargin = getLeftMargin(domainToolTip, tip);
+            var toolTipProperties = {
+                text: tip,
+                leftMargin: tipLeftMargin
+            };
+
+            Overlays.editOverlay(domainNameTextID, textProperties);
+            Overlays.editOverlay(domainToolTip, toolTipProperties);
+
+
+            startInterstitialPage();
+            currentDomain = domain;
+        }
+    }
+
+    var THE_PLACE = "hifi://TheSpot-dev";
+    function clickedOnOverlay(overlayID, event) {
+        print(overlayID + " other: " + loadingToTheSpotID);
+        if (loadingToTheSpotID === overlayID) {
+            location.handleLookupString(THE_PLACE);
+        }
+    }
+
+    var currentProgress = 0.1;
+
+    function updateOverlays(physicsEnabled) {
+        var properties = {
+            visible: !physicsEnabled
+        };
+
+        var mainSphereProperties = {
+            visible: !physicsEnabled
+        };
+
+        var domainTextProperties = {
+            text: domainText,
+            visible: !physicsEnabled
+        };
+
+        var loadingBarProperties = {
+            dimensions: { x: 0.0, y: 2.8 },
+            visible: !physicsEnabled
+        };
+
+        if (!HMD.active) {
+            MyAvatar.headOrientation = Quat.multiply(Quat.cancelOutRollAndPitch(MyAvatar.headOrientation), Quat.fromPitchYawRollDegrees(-3.0, 0, 0));
+        }
+
+        renderViewTask.getConfig("LightingModel")["enableAmbientLight"] = physicsEnabled;
+        renderViewTask.getConfig("LightingModel")["enableDirectionalLight"] = physicsEnabled;
+        renderViewTask.getConfig("LightingModel")["enablePointLight"] = physicsEnabled;
+        Overlays.editOverlay(loadingSphereID, mainSphereProperties);
+        Overlays.editOverlay(loadingToTheSpotID, properties);
+        Overlays.editOverlay(domainNameTextID, properties);
+        Overlays.editOverlay(domainDescription, domainTextProperties);
+        Overlays.editOverlay(domainToolTip, properties);
+        Overlays.editOverlay(loadingBarPlacard, properties);
+        Overlays.editOverlay(loadingBarProgress, loadingBarProperties);
+
+        if (physicsEnabled && !HMD.active) {
+            toolbar.writeProperty("visible", true);
+        }
+
+        resetValues();
+
+        if (physicsEnabled) {
+            Camera.mode = previousCameraMode;
+        }
+    }
+
+
+    function scaleInterstitialPage(sensorToWorldScale) {
+        var yOffset = getAnchorLocalYOffset();
+        var localPosition = {
+            x: 0.0,
+            y: yOffset,
+            z: 5.45
+        };
+
+        Overlays.editOverlay(anchorOverlay, { localPosition: localPosition });
+    }
+
+    function update() {
+        var physicsEnabled = Window.isPhysicsEnabled();
+        var thisInterval = Date.now();
+        var deltaTime = (thisInterval - lastInterval);
+        lastInterval = thisInterval;
+
+        var domainLoadingProgressPercentage = Window.domainLoadingProgress();
+
+        var progress = MAX_X_SIZE * domainLoadingProgressPercentage;
+        if (progress >= target) {
+            target = progress;
+        }
+
+        if ((physicsEnabled && (currentProgress < MAX_X_SIZE))) {
+            target = MAX_X_SIZE;
+        }
+
+        currentProgress = lerp(currentProgress, target, 0.2);
+        var properties = {
+            localPosition: { x: (1.85 - (currentProgress / 2) - (-0.029 * (currentProgress / MAX_X_SIZE))), y: -0.935, z: 0.0 },
+            dimensions: {
+                x: currentProgress,
+                y: 2.8
+            }
+        };
+
+        Overlays.editOverlay(loadingBarProgress, properties);
+        if ((physicsEnabled && (currentProgress >= (MAX_X_SIZE - EPSILON)))) {
+            updateOverlays((physicsEnabled || connectionToDomainFailed));
+            endAudio();
+            timer = null;
+            return;
+        }
+
+        timer = Script.setTimeout(update, BASIC_TIMER_INTERVAL_MS);
+    }
+
+    Overlays.mouseReleaseOnOverlay.connect(clickedOnOverlay);
+    location.hostChanged.connect(domainChanged);
+    location.lookupResultsFinished.connect(function() {
+        Script.setTimeout(function() {
+            connectionToDomainFailed = !location.isConnected;
+        }, 1200);
+    });
+
+    MyAvatar.sensorToWorldScaleChanged.connect(scaleInterstitialPage);
+
+    var toggle = true;
+    if (DEBUG) {
+        tablet = Tablet.getTablet("com.highfidelity.interface.tablet.system");
+        button = tablet.addButton(BUTTON_PROPERTIES);
+
+        button.clicked.connect(function() {
+            toggle = !toggle;
+            updateOverlays(toggle);
+        });
+    }
+
+    function cleanup() {
+        Overlays.deleteOverlay(loadingSphereID);
+        Overlays.deleteOverlay(loadingToTheSpotID);
+        Overlays.deleteOverlay(domainNameTextID);
+        Overlays.deleteOverlay(domainDescription);
+        Overlays.deleteOverlay(domainToolTip);
+        Overlays.deleteOverlay(loadingBarPlacard);
+        Overlays.deleteOverlay(loadingBarProgress);
+        Overlays.deleteOverlay(anchorOverlay);
+
+        if (DEBUG) {
+            tablet.removeButton(button);
+        }
+
+        renderViewTask.getConfig("LightingModel")["enableAmbientLight"] = true;
+        renderViewTask.getConfig("LightingModel")["enableDirectionalLight"] = true;
+        renderViewTask.getConfig("LightingModel")["enablePointLight"] = true;
+        if (!HMD.active) {
+            toolbar.writeProperty("visible", true);
+        }
+    }
+
+    Script.scriptEnding.connect(cleanup);
+}());