diff --git a/assignment-client/CMakeLists.txt b/assignment-client/CMakeLists.txt
index 5bc4829117..c7b8ab5732 100644
--- a/assignment-client/CMakeLists.txt
+++ b/assignment-client/CMakeLists.txt
@@ -9,11 +9,12 @@ set(MACRO_DIR ${ROOT_DIR}/cmake/macros)
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/../cmake/modules/")
 
 find_package(Qt5Network REQUIRED)
+find_package(Qt5Widgets REQUIRED)
 
 include(${MACRO_DIR}/SetupHifiProject.cmake)
 setup_hifi_project(${TARGET_NAME} TRUE)
 
-qt5_use_modules(${TARGET_NAME} Network)
+qt5_use_modules(${TARGET_NAME} Network Widgets)
 
 # include glm
 include(${MACRO_DIR}/IncludeGLM.cmake)
@@ -30,6 +31,7 @@ link_hifi_library(particles ${TARGET_NAME} ${ROOT_DIR})
 link_hifi_library(octree-server ${TARGET_NAME} ${ROOT_DIR})
 link_hifi_library(particle-server ${TARGET_NAME} ${ROOT_DIR})
 link_hifi_library(voxel-server ${TARGET_NAME} ${ROOT_DIR})
+link_hifi_library(script-engine ${TARGET_NAME} ${ROOT_DIR})
 #testing
 
 include_directories(${ROOT_DIR}/externals/civetweb/include)
diff --git a/assignment-client/src/Agent.cpp b/assignment-client/src/Agent.cpp
index 8f02ed9a2e..e8bffc8eb2 100644
--- a/assignment-client/src/Agent.cpp
+++ b/assignment-client/src/Agent.cpp
@@ -24,8 +24,6 @@
 Agent::Agent(const unsigned char* dataBuffer, int numBytes) :
     ThreadedAssignment(dataBuffer, numBytes)
 {
-    _particleScriptingInterface.init();
-    _voxelScriptingInterface.init();
 }
 
 void Agent::processDatagram(const QByteArray& dataByteArray, const HifiSockAddr& senderSockAddr) {
@@ -34,12 +32,12 @@ void Agent::processDatagram(const QByteArray& dataByteArray, const HifiSockAddr&
         // PACKET_TYPE_JURISDICTION, first byte is the node type...
         switch (dataByteArray[headerBytes]) {
             case NODE_TYPE_VOXEL_SERVER:
-                _voxelScriptingInterface.getJurisdictionListener()->queueReceivedPacket(senderSockAddr,
+                _scriptEngine.getVoxelScriptingInterface()->getJurisdictionListener()->queueReceivedPacket(senderSockAddr,
                                                                                 (unsigned char*) dataByteArray.data(),
                                                                                 dataByteArray.size());
                 break;
             case NODE_TYPE_PARTICLE_SERVER:
-                _particleScriptingInterface.getJurisdictionListener()->queueReceivedPacket(senderSockAddr,
+                _scriptEngine.getParticleScriptingInterface()->getJurisdictionListener()->queueReceivedPacket(senderSockAddr,
                                                                                 (unsigned char*) dataByteArray.data(),
                                                                                 dataByteArray.size());
                 break;
@@ -76,43 +74,12 @@ void Agent::run() {
     loop.exec();
     
     QString scriptContents(reply->readAll());
-    QScriptEngine engine;
-    
-    // register meta-type for glm::vec3 conversions
-    registerMetaTypes(&engine);
-    
-    QScriptValue agentValue = engine.newQObject(this);
-    engine.globalObject().setProperty("Agent", agentValue);
-    
-    QScriptValue voxelScripterValue =  engine.newQObject(&_voxelScriptingInterface);
-    engine.globalObject().setProperty("Voxels", voxelScripterValue);
-
-    QScriptValue particleScripterValue =  engine.newQObject(&_particleScriptingInterface);
-    engine.globalObject().setProperty("Particles", particleScripterValue);
-    
-    QScriptValue treeScaleValue = engine.newVariant(QVariant(TREE_SCALE));
-    engine.globalObject().setProperty("TREE_SCALE", treeScaleValue);
-    
-    const unsigned int VISUAL_DATA_CALLBACK_USECS = (1.0 / 60.0) * 1000 * 1000;
-    
-    // let the VoxelPacketSender know how frequently we plan to call it
-    _voxelScriptingInterface.getVoxelPacketSender()->setProcessCallIntervalHint(VISUAL_DATA_CALLBACK_USECS);
-    _particleScriptingInterface.getParticlePacketSender()->setProcessCallIntervalHint(VISUAL_DATA_CALLBACK_USECS);
     
     qDebug() << "Downloaded script:" << scriptContents << "\n";
-    QScriptValue result = engine.evaluate(scriptContents);
-    qDebug() << "Evaluated script.\n";
-    
-    if (engine.hasUncaughtException()) {
-        int line = engine.uncaughtExceptionLineNumber();
-        qDebug() << "Uncaught exception at line" << line << ":" << result.toString() << "\n";
-    }
     
     timeval startTime;
     gettimeofday(&startTime, NULL);
     
-    int thisFrame = 0;
-    
     QTimer* domainServerTimer = new QTimer(this);
     connect(domainServerTimer, SIGNAL(timeout()), this, SLOT(checkInWithDomainServerOrExit()));
     domainServerTimer->start(DOMAIN_SERVER_CHECK_IN_USECS / 1000);
@@ -124,50 +91,7 @@ void Agent::run() {
     QTimer* pingNodesTimer = new QTimer(this);
     connect(pingNodesTimer, SIGNAL(timeout()), nodeList, SLOT(pingInactiveNodes()));
     pingNodesTimer->start(PING_INACTIVE_NODE_INTERVAL_USECS / 1000);
-    
-    while (!_isFinished) {
-        
-        int usecToSleep = usecTimestamp(&startTime) + (thisFrame++ * VISUAL_DATA_CALLBACK_USECS) - usecTimestampNow();
-        if (usecToSleep > 0) {
-            usleep(usecToSleep);
-        }
-        
-        QCoreApplication::processEvents();
-        
-        bool willSendVisualDataCallBack = false;
-        
-        if (_voxelScriptingInterface.getVoxelPacketSender()->voxelServersExist()) {            
-            // allow the scripter's call back to setup visual data
-            willSendVisualDataCallBack = true;
-            
-            // release the queue of edit voxel messages.
-            _voxelScriptingInterface.getVoxelPacketSender()->releaseQueuedMessages();
-            
-            // since we're in non-threaded mode, call process so that the packets are sent
-            _voxelScriptingInterface.getVoxelPacketSender()->process();
-        }
 
-        if (_particleScriptingInterface.getParticlePacketSender()->serversExist()) {
-            // allow the scripter's call back to setup visual data
-            willSendVisualDataCallBack = true;
-            
-            // release the queue of edit voxel messages.
-            _particleScriptingInterface.getParticlePacketSender()->releaseQueuedMessages();
-            
-            // since we're in non-threaded mode, call process so that the packets are sent
-            _particleScriptingInterface.getParticlePacketSender()->process();
-        }
-        
-        if (willSendVisualDataCallBack) {
-            emit willSendVisualDataCallback();
-        }
-
-        
-        if (engine.hasUncaughtException()) {
-            int line = engine.uncaughtExceptionLineNumber();
-            qDebug() << "Uncaught exception at line" << line << ":" << engine.uncaughtException().toString() << "\n";
-        }
-        
-        
-    }
+    _scriptEngine.setScriptContents(scriptContents);
+    _scriptEngine.run();    
 }
diff --git a/assignment-client/src/Agent.h b/assignment-client/src/Agent.h
index 1c2be08662..0bcd1af78e 100644
--- a/assignment-client/src/Agent.h
+++ b/assignment-client/src/Agent.h
@@ -15,6 +15,7 @@
 #include <QtCore/QObject>
 #include <QtCore/QUrl>
 
+#include <ScriptEngine.h>
 #include <ThreadedAssignment.h>
 
 #include <VoxelScriptingInterface.h>
@@ -33,8 +34,7 @@ signals:
     void willSendAudioDataCallback();
     void willSendVisualDataCallback();
 private:
-    VoxelScriptingInterface _voxelScriptingInterface;
-    ParticleScriptingInterface _particleScriptingInterface;
+    ScriptEngine _scriptEngine;
 };
 
 #endif /* defined(__hifi__Agent__) */
diff --git a/domain-server/src/DomainServer.cpp b/domain-server/src/DomainServer.cpp
index ec955f5fb4..ee6caaaf9b 100644
--- a/domain-server/src/DomainServer.cpp
+++ b/domain-server/src/DomainServer.cpp
@@ -220,12 +220,12 @@ void DomainServer::readAvailableDatagrams() {
                 }
             } else if (packetData[0] == PACKET_TYPE_REQUEST_ASSIGNMENT) {
                 
-                qDebug("Received a request for assignment.\n");
-                
                 if (_assignmentQueue.size() > 0) {
                     // construct the requested assignment from the packet data
                     Assignment requestAssignment(packetData, receivedBytes);
                     
+                    qDebug("Received a request for assignment type %i from %s.\n", requestAssignment.getType(), qPrintable(senderSockAddr.getAddress().toString()));
+                    
                     Assignment* assignmentToDeploy = deployableAssignmentForRequest(requestAssignment);
                     
                     if (assignmentToDeploy) {
@@ -243,6 +243,8 @@ void DomainServer::readAvailableDatagrams() {
                         }
                     }
                     
+                } else {
+                    qDebug("Received an invalid assignment request from %s.\n", qPrintable(senderSockAddr.getAddress().toString()));
                 }
             }
         }
diff --git a/interface/CMakeLists.txt b/interface/CMakeLists.txt
index c447bfa1a5..ecc6ff79cb 100644
--- a/interface/CMakeLists.txt
+++ b/interface/CMakeLists.txt
@@ -93,10 +93,11 @@ include(${MACRO_DIR}/LinkHifiLibrary.cmake)
 link_hifi_library(shared ${TARGET_NAME} ${ROOT_DIR})
 link_hifi_library(octree ${TARGET_NAME} ${ROOT_DIR})
 link_hifi_library(voxels ${TARGET_NAME} ${ROOT_DIR})
+link_hifi_library(metavoxels ${TARGET_NAME} ${ROOT_DIR})
 link_hifi_library(particles ${TARGET_NAME} ${ROOT_DIR})
 link_hifi_library(avatars ${TARGET_NAME} ${ROOT_DIR})
 link_hifi_library(audio ${TARGET_NAME} ${ROOT_DIR})
-link_hifi_library(scriptengine ${TARGET_NAME} ${ROOT_DIR})
+link_hifi_library(script-engine ${TARGET_NAME} ${ROOT_DIR})
 
 # find required libraries
 find_package(Faceshift)
@@ -135,7 +136,7 @@ if (LIBOVR_FOUND AND NOT DISABLE_LIBOVR)
     target_link_libraries(${TARGET_NAME} ${LIBOVR_LIBRARIES})
 endif (LIBOVR_FOUND AND NOT DISABLE_LIBOVR)
 
-qt5_use_modules(${TARGET_NAME} Core Gui Multimedia Network OpenGL Svg WebKit WebKitWidgets)
+qt5_use_modules(${TARGET_NAME} Core Gui Multimedia Network OpenGL Script Svg WebKit WebKitWidgets)
 
 # include headers for interface and InterfaceConfig.
 include_directories(
diff --git a/interface/resources/scripts/sphere.js b/interface/resources/scripts/sphere.js
new file mode 100644
index 0000000000..403374e812
--- /dev/null
+++ b/interface/resources/scripts/sphere.js
@@ -0,0 +1,171 @@
+//
+//  sphere.js
+//  interface
+//
+//  Created by Andrzej Kapolka on 12/17/13.
+//  Copyright (c) 2013 High Fidelity, Inc. All rights reserved.
+//
+
+function strictIndexOf(array, element) {
+    for (var i = 0; i < array.length; i++) {
+        if (array[i] == element) {
+            return i;
+        }
+    }
+    return -1;
+}
+
+var colorIndex;
+var normalIndex;
+var visitor;
+var info;
+
+var MAX_DEPTH = 4;
+
+var sphereCenter = [ 0.5, 0.5, 0.5 ];
+var sphereColor = 0xFFFF00FF;
+var sphereRadius = 0.25;
+var sphereRadiusSquared = sphereRadius * sphereRadius;
+
+function lengthSquared(x, y, z) {
+    return x*x + y*y + z*z;
+}
+
+function setNormal(vector) {
+    if (normalIndex != -1) {
+        var length = Math.sqrt(lengthSquared(vector[0], vector[1], vector[2]));
+        if (length == 0.0) {
+            info.attributeValues[normalIndex] = 0x007F00;
+            
+        } else {
+            var scale = 127.0 / length;
+            info.attributeValues[normalIndex] =
+                (Math.floor(vector[0] * scale) & 0xFF) << 16 |
+                (Math.floor(vector[1] * scale) & 0xFF) << 8 |
+                Math.floor(vector[2] * scale) & 0xFF;
+        }
+    }
+}
+
+function guide(minimum, size, depth) {
+    info.minimum = minimum;
+    info.size = size;
+    
+    // start with a relative fast bounding volume test to find most non-intersecting states
+    var maximum = [ minimum[0] + size, minimum[1] + size, minimum[2] + size ];
+    if (minimum[0] >= sphereCenter[0] + sphereRadius ||
+            minimum[1] >= sphereCenter[1] + sphereRadius ||
+            minimum[2] >= sphereCenter[2] + sphereRadius ||
+            maximum[0] <= sphereCenter[0] - sphereRadius ||
+            maximum[1] <= sphereCenter[1] - sphereRadius ||
+            maximum[2] <= sphereCenter[2] - sphereRadius) {
+        info.isLeaf = true;
+        if (colorIndex != -1) {
+            info.attributeValues[colorIndex] = 0x0;
+        }
+        visitor.visit(info);
+        return;
+    } 
+    
+    var halfSize = size / 2;
+    var center = [ minimum[0] + halfSize, minimum[1] + halfSize, minimum[2] + halfSize ];
+    var vector = [ center[0] - sphereCenter[0], center[1] - sphereCenter[1], center[2] - sphereCenter[2] ];
+    
+    // count the number of points inside the sphere
+    var inside = 0;
+    if (lengthSquared(sphereCenter[0] - minimum[0], sphereCenter[1] - minimum[1], sphereCenter[2] - minimum[2]) <=
+            sphereRadiusSquared) {
+        inside++;
+    }
+    if (lengthSquared(sphereCenter[0] - maximum[0], sphereCenter[1] - minimum[1], sphereCenter[2] - minimum[2]) <=
+            sphereRadiusSquared) {
+        inside++;
+    }
+    if (lengthSquared(sphereCenter[0] - minimum[0], sphereCenter[1] - maximum[1], sphereCenter[2] - minimum[2]) <=
+            sphereRadiusSquared) {
+        inside++;
+    }
+    if (lengthSquared(sphereCenter[0] - maximum[0], sphereCenter[1] - maximum[1], sphereCenter[2] - minimum[2]) <=
+            sphereRadiusSquared) {
+        inside++;
+    }
+    if (lengthSquared(sphereCenter[0] - minimum[0], sphereCenter[1] - minimum[1], sphereCenter[2] - maximum[2]) <=
+            sphereRadiusSquared) {
+        inside++;
+    }
+    if (lengthSquared(sphereCenter[0] - maximum[0], sphereCenter[1] - minimum[1], sphereCenter[2] - maximum[2]) <=
+            sphereRadiusSquared) {
+        inside++;
+    }
+    if (lengthSquared(sphereCenter[0] - minimum[0], sphereCenter[1] - maximum[1], sphereCenter[2] - maximum[2]) <=
+            sphereRadiusSquared) {
+        inside++;
+    }
+    if (lengthSquared(sphereCenter[0] - maximum[0], sphereCenter[1] - maximum[1], sphereCenter[2] - maximum[2]) <=
+            sphereRadiusSquared) {
+        inside++;
+    }
+    
+    // see if all points are in the sphere
+    if (inside == 8) {
+        info.isLeaf = true;
+        if (colorIndex != -1) {
+            info.attributeValues[colorIndex] = sphereColor;
+        }
+        setNormal(vector);
+        visitor.visit(info);
+        return;
+    }
+    
+    // if we've reached max depth, compute alpha using a volume estimate
+    if (depth == MAX_DEPTH) {
+        info.isLeaf = true;
+        if (inside >= 3) {
+            if (colorIndex != -1) {
+                info.attributeValues[colorIndex] = sphereColor;
+            }
+            setNormal(vector);
+        
+        } else {
+            if (colorIndex != -1) {
+                info.attributeValues[colorIndex] = 0x0;
+            }
+        }
+        visitor.visit(info);
+        return;
+    }
+    
+    // recurse
+    info.isLeaf = false;
+    if (!visitor.visit(info)) {
+        return;
+    }
+    depth += 1;
+    guide(minimum, halfSize, depth);
+    guide([ center[0], minimum[1], minimum[2] ], halfSize, depth);
+    guide([ minimum[0], center[1], minimum[2] ], halfSize, depth);
+    guide([ center[0], center[1], minimum[2] ], halfSize, depth);
+    guide([ minimum[0], minimum[1], center[2] ], halfSize, depth);
+    guide([ center[0], minimum[1], center[2] ], halfSize, depth);
+    guide([ minimum[0], center[1], center[2] ], halfSize, depth);
+    guide([ center[0], center[1], center[2] ], halfSize, depth);
+}
+
+(function(visitation) {
+    var attributes = visitation.visitor.getAttributes();
+    colorIndex = strictIndexOf(attributes, AttributeRegistry.colorAttribute);
+    normalIndex = strictIndexOf(attributes, AttributeRegistry.normalAttribute);
+    visitor = visitation.visitor;
+    info = { attributeValues: new Array(attributes.length) };
+    
+    // have the sphere orbit the center and pulse in size
+    var time = new Date().getTime();
+    var ROTATE_PERIOD = 400.0;
+    sphereCenter[0] = 0.5 + 0.25 * Math.cos(time / ROTATE_PERIOD); 
+    sphereCenter[2] = 0.5 + 0.25 * Math.sin(time / ROTATE_PERIOD);
+    var PULSE_PERIOD = 300.0;
+    sphereRadius = 0.25 + 0.0625 * Math.cos(time / PULSE_PERIOD);  
+    sphereRadiusSquared = sphereRadius * sphereRadius;
+    
+    guide(visitation.info.minimum, visitation.info.size, 0);
+})
diff --git a/interface/resources/shaders/metavoxel_point.vert b/interface/resources/shaders/metavoxel_point.vert
new file mode 100644
index 0000000000..b0472088c0
--- /dev/null
+++ b/interface/resources/shaders/metavoxel_point.vert
@@ -0,0 +1,25 @@
+#version 120
+
+//
+//  metavoxel_point.vert
+//  vertex shader
+//
+//  Created by Andrzej Kapolka on 12/12/13.
+//  Copyright (c) 2013 High Fidelity, Inc. All rights reserved.
+//
+
+uniform float pointScale;
+
+void main(void) {
+
+    // standard diffuse lighting
+    gl_FrontColor = vec4(gl_Color.rgb * (gl_LightModel.ambient.rgb + gl_LightSource[0].ambient.rgb +
+        gl_LightSource[0].diffuse.rgb * max(0.0, dot(gl_NormalMatrix * gl_Normal, gl_LightSource[0].position.xyz))),
+            gl_Color.a);
+    
+    // extract the first three components of the vertex for position
+    gl_Position = gl_ModelViewProjectionMatrix * vec4(gl_Vertex.xyz, 1.0);
+    
+    // the final component is the size in world space
+    gl_PointSize = pointScale * gl_Vertex.w / gl_Position.w;
+}
diff --git a/interface/resources/styles/Inconsolata.otf b/interface/resources/styles/Inconsolata.otf
new file mode 100644
index 0000000000..348889828d
Binary files /dev/null and b/interface/resources/styles/Inconsolata.otf differ
diff --git a/interface/resources/styles/log_dialog.qss b/interface/resources/styles/log_dialog.qss
new file mode 100644
index 0000000000..fe3675f682
--- /dev/null
+++ b/interface/resources/styles/log_dialog.qss
@@ -0,0 +1,7 @@
+QPlainTextEdit {
+    font-family: Inconsolata, Lucida Console, Andale Mono, Monaco;
+    font-size: 16px;
+    padding-left: 28px;
+    color: #333333;
+    background-color: #FFFFFF;
+}
diff --git a/interface/src/Application.cpp b/interface/src/Application.cpp
index 5dff756eec..24cdabe772 100644
--- a/interface/src/Application.cpp
+++ b/interface/src/Application.cpp
@@ -143,11 +143,17 @@ Application::Application(int& argc, char** argv, timeval &startup_time) :
         _pasteMode(false)
 {
     _applicationStartupTime = startup_time;
+
+    switchToResourcesParentIfRequired();
+    QFontDatabase::addApplicationFont("resources/styles/Inconsolata.otf");
     _window->setWindowTitle("Interface");
-    
-    qDebug( "[VERSION] Build sequence: %i", BUILD_VERSION);
-    
+
     qInstallMessageHandler(messageHandler);
+
+    // call Menu getInstance static method to set up the menu
+    _window->setMenuBar(Menu::getInstance());
+
+    qDebug("[VERSION] Build sequence: %i", BUILD_VERSION);
     
     unsigned int listenPort = 0; // bind to an ephemeral port by default
     const char** constArgv = const_cast<const char**>(argv);
@@ -173,16 +179,9 @@ Application::Application(int& argc, char** argv, timeval &startup_time) :
 
     // network receive thread and voxel parsing thread are both controlled by the --nonblocking command line
     _enableProcessVoxelsThread = _enableNetworkThread = !cmdOptionExists(argc, constArgv, "--nonblocking");
-    
-    // setup QSettings    
-#ifdef Q_OS_MAC
-    QString resourcesPath = QCoreApplication::applicationDirPath() + "/../Resources";
-#else
-    QString resourcesPath = QCoreApplication::applicationDirPath() + "/resources";
-#endif
-    
+
     // read the ApplicationInfo.ini file for Name/Version/Domain information
-    QSettings applicationInfo(resourcesPath + "/info/ApplicationInfo.ini", QSettings::IniFormat);
+    QSettings applicationInfo("resources/info/ApplicationInfo.ini", QSettings::IniFormat);
     
     // set the associated application properties
     applicationInfo.beginGroup("INFO");
@@ -191,11 +190,8 @@ Application::Application(int& argc, char** argv, timeval &startup_time) :
     setApplicationVersion(applicationInfo.value("version").toString());
     setOrganizationName(applicationInfo.value("organizationName").toString());
     setOrganizationDomain(applicationInfo.value("organizationDomain").toString());
-    
+
     _settings = new QSettings(this);
-    
-    // call Menu getInstance static method to set up the menu
-    _window->setMenuBar(Menu::getInstance());
 
     // Check to see if the user passed in a command line option for loading a local
     // Voxel File.
@@ -251,6 +247,9 @@ Application::Application(int& argc, char** argv, timeval &startup_time) :
 }
 
 Application::~Application() {
+
+    qInstallMessageHandler(NULL);
+    
     // make sure we don't call the idle timer any more
     delete idleTimer;
 
@@ -1858,6 +1857,8 @@ void Application::init() {
     _particles.init();
     _particles.setViewFrustum(getViewFrustum());
     
+    _metavoxels.init();
+    
     _particleCollisionSystem.init(&_particleEditSender, _particles.getTree(), _voxels.getTree(), &_audio, &_myAvatar);
     
     _palette.init(_glWidget->width(), _glWidget->height());
@@ -2376,6 +2377,15 @@ void Application::updateParticles(float deltaTime) {
     }
 }
 
+void Application::updateMetavoxels(float deltaTime) {
+    bool showWarnings = Menu::getInstance()->isOptionChecked(MenuOption::PipelineWarnings);
+    PerformanceWarning warn(showWarnings, "Application::updateMetavoxels()");
+
+    if (Menu::getInstance()->isOptionChecked(MenuOption::Metavoxels)) {
+        _metavoxels.simulate(deltaTime);
+    }
+}
+
 void Application::updateTransmitter(float deltaTime) {
     bool showWarnings = Menu::getInstance()->isOptionChecked(MenuOption::PipelineWarnings);
     PerformanceWarning warn(showWarnings, "Application::updateTransmitter()");
@@ -2521,6 +2531,7 @@ void Application::update(float deltaTime) {
     updateAvatars(deltaTime, mouseRayOrigin, mouseRayDirection); //loop through all the other avatars and simulate them...
     updateMyAvatarSimulation(deltaTime); // Simulate myself
     updateParticles(deltaTime); // Simulate particle cloud movements
+    updateMetavoxels(deltaTime); // update metavoxels
     updateTransmitter(deltaTime); // transmitter drive or pick
     updateCamera(deltaTime); // handle various camera tweaks like off axis projection
     updateDialogs(deltaTime); // update various stats dialogs if present
@@ -3068,6 +3079,13 @@ void Application::displaySide(Camera& whichCamera, bool selfAvatarOnly) {
             }
         }
         
+        // also, metavoxels
+        if (Menu::getInstance()->isOptionChecked(MenuOption::Metavoxels)) {
+            PerformanceWarning warn(Menu::getInstance()->isOptionChecked(MenuOption::PipelineWarnings), 
+                "Application::displaySide() ... metavoxels...");
+            _metavoxels.render();
+        }    
+
         // render particles...
         _particles.render();
     
@@ -4432,7 +4450,8 @@ void Application::loadScript() {
     bool wantMenuItems = true; // tells the ScriptEngine object to add menu items for itself
 
 
-    ScriptEngine* scriptEngine = new ScriptEngine(script, wantMenuItems, fileName, Menu::getInstance());
+    ScriptEngine* scriptEngine = new ScriptEngine(script, wantMenuItems, fileName, Menu::getInstance(), 
+                                                    &_controllerScriptingInterface);
     scriptEngine->setupMenuItems();
     
     // setup the packet senders and jurisdiction listeners of the script engine's scripting interfaces so
@@ -4460,3 +4479,12 @@ void Application::loadScript() {
     // restore the main window's active state
     _window->activateWindow();
 }
+
+void Application::toggleLogDialog() {
+    if (! _logDialog) {
+        _logDialog = new LogDialog(_glWidget);
+        _logDialog->show();
+    } else {
+        _logDialog->close();
+    }
+}
diff --git a/interface/src/Application.h b/interface/src/Application.h
index 6a948f5b7a..e917f6d63d 100644
--- a/interface/src/Application.h
+++ b/interface/src/Application.h
@@ -18,6 +18,7 @@
 #include <QSettings>
 #include <QTouchEvent>
 #include <QList>
+#include <QPointer>
 
 #include <NetworkPacket.h>
 #include <NodeList.h>
@@ -58,16 +59,20 @@
 #include "renderer/AmbientOcclusionEffect.h"
 #include "renderer/GeometryCache.h"
 #include "renderer/GlowEffect.h"
-#include "renderer/VoxelShader.h"
+#include "renderer/MetavoxelSystem.h"
 #include "renderer/PointShader.h"
 #include "renderer/TextureCache.h"
+#include "renderer/VoxelShader.h"
 #include "ui/BandwidthDialog.h"
 #include "ui/ChatEntry.h"
 #include "ui/VoxelStatsDialog.h"
 #include "ui/RearMirrorTools.h"
 #include "ui/LodToolsDialog.h"
+#include "ui/LogDialog.h"
 #include "ParticleTreeRenderer.h"
 #include "ParticleEditHandle.h"
+#include "ControllerScriptingInterface.h"
+
 
 class QAction;
 class QActionGroup;
@@ -221,7 +226,7 @@ public slots:
     void decreaseVoxelSize();
     void increaseVoxelSize();
     void loadScript();
-    
+    void toggleLogDialog();
     
 private slots:
     
@@ -282,6 +287,7 @@ private:
     void updateThreads(float deltaTime);
     void updateMyAvatarSimulation(float deltaTime);
     void updateParticles(float deltaTime);
+    void updateMetavoxels(float deltaTime);
     void updateTransmitter(float deltaTime);
     void updateCamera(float deltaTime);
     void updateDialogs(float deltaTime);
@@ -362,6 +368,8 @@ private:
     QByteArray _voxelsFilename;
     bool _wantToKillLocalVoxels;
     
+    MetavoxelSystem _metavoxels;
+    
     ViewFrustum _viewFrustum; // current state of view frustum, perspective, orientation, etc.
 
     Oscilloscope _audioScope;
@@ -499,6 +507,8 @@ private:
     
     std::vector<VoxelFade> _voxelFades;
     std::vector<Avatar*> _avatarFades;
+    ControllerScriptingInterface _controllerScriptingInterface;
+    QPointer<LogDialog> _logDialog;
 };
 
 #endif /* defined(__interface__Application__) */
diff --git a/interface/src/Audio.cpp b/interface/src/Audio.cpp
index 25a5f01d06..400ff534df 100644
--- a/interface/src/Audio.cpp
+++ b/interface/src/Audio.cpp
@@ -174,9 +174,8 @@ void linearResampling(int16_t* sourceSamples, int16_t* destinationSamples,
     if (sourceAudioFormat == destinationAudioFormat) {
         memcpy(destinationSamples, sourceSamples, numSourceSamples * sizeof(int16_t));
     } else {
-        int destinationChannels = (destinationAudioFormat.channelCount() >= 2) ? 2 : destinationAudioFormat.channelCount();
         float sourceToDestinationFactor = (sourceAudioFormat.sampleRate() / (float) destinationAudioFormat.sampleRate())
-            * (sourceAudioFormat.channelCount() / (float) destinationChannels);
+            * (sourceAudioFormat.channelCount() / (float) destinationAudioFormat.channelCount());
         
         // take into account the number of channels in source and destination
         // accomodate for the case where have an output with > 2 channels
@@ -203,14 +202,15 @@ void linearResampling(int16_t* sourceSamples, int16_t* destinationSamples,
             // upsample from 24 to 48
             // for now this only supports a stereo to stereo conversion - this is our case for network audio to output
             int sourceIndex = 0;
-            int destinationToSourceFactor = (1 / sourceToDestinationFactor);
             int dtsSampleRateFactor = (destinationAudioFormat.sampleRate() / sourceAudioFormat.sampleRate());
+            int sampleShift = destinationAudioFormat.channelCount() * dtsSampleRateFactor;
+            int destinationToSourceFactor = (1 / sourceToDestinationFactor);
             
-            for (int i = 0; i < numDestinationSamples; i += destinationAudioFormat.channelCount() * dtsSampleRateFactor) {
+            for (int i = 0; i < numDestinationSamples; i += sampleShift) {
                 sourceIndex = (i / destinationToSourceFactor);
                 
                 // fill the L/R channels and make the rest silent
-                for (int j = i; j < i + (dtsSampleRateFactor * destinationAudioFormat.channelCount()); j++) {
+                for (int j = i; j < i + sampleShift; j++) {
                     if (j % destinationAudioFormat.channelCount() == 0) {
                         // left channel
                         destinationSamples[j] = sourceSamples[sourceIndex];
diff --git a/interface/src/ControllerScriptingInterface.cpp b/interface/src/ControllerScriptingInterface.cpp
new file mode 100644
index 0000000000..fd27eb2428
--- /dev/null
+++ b/interface/src/ControllerScriptingInterface.cpp
@@ -0,0 +1,183 @@
+//
+//  ControllerScriptingInterface.h
+//  hifi
+//
+//  Created by Brad Hefta-Gaub on 12/17/13
+//  Copyright (c) 2013 HighFidelity, Inc. All rights reserved.
+//
+
+#include <HandData.h>
+#include "Application.h"
+#include "ControllerScriptingInterface.h"
+
+const PalmData* ControllerScriptingInterface::getPrimaryPalm() const {
+    int leftPalmIndex, rightPalmIndex;
+
+    const HandData* handData = Application::getInstance()->getAvatar()->getHandData();
+    handData->getLeftRightPalmIndices(leftPalmIndex, rightPalmIndex);
+    
+    if (rightPalmIndex != -1) {
+        return &handData->getPalms()[rightPalmIndex];
+    }
+
+    return NULL;
+}
+
+int ControllerScriptingInterface::getNumberOfActivePalms() const {
+    const HandData* handData = Application::getInstance()->getAvatar()->getHandData();
+    int numberOfPalms = handData->getNumPalms();
+    int numberOfActivePalms = 0;
+    for (int i = 0; i < numberOfPalms; i++) {
+        if (getPalm(i)->isActive()) {
+            numberOfActivePalms++;
+        }
+    }
+    return numberOfActivePalms;
+}
+
+const PalmData* ControllerScriptingInterface::getPalm(int palmIndex) const {
+    const HandData* handData = Application::getInstance()->getAvatar()->getHandData();
+    return &handData->getPalms()[palmIndex];
+}
+
+const PalmData* ControllerScriptingInterface::getActivePalm(int palmIndex) const {
+    const HandData* handData = Application::getInstance()->getAvatar()->getHandData();
+    int numberOfPalms = handData->getNumPalms();
+    int numberOfActivePalms = 0;
+    for (int i = 0; i < numberOfPalms; i++) {
+        if (getPalm(i)->isActive()) {
+            if (numberOfActivePalms == palmIndex) {
+                return &handData->getPalms()[i];
+            }
+            numberOfActivePalms++;
+        }
+    }
+    return NULL;
+}
+
+bool ControllerScriptingInterface::isPrimaryButtonPressed() const {
+    const PalmData* primaryPalm = getPrimaryPalm();
+    if (primaryPalm) {
+        if (primaryPalm->getControllerButtons() & BUTTON_FWD) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+glm::vec2 ControllerScriptingInterface::getPrimaryJoystickPosition() const {
+    const PalmData* primaryPalm = getPrimaryPalm();
+    if (primaryPalm) {
+        return glm::vec2(primaryPalm->getJoystickX(), primaryPalm->getJoystickY());
+    }
+
+    return glm::vec2(0);
+}
+
+int ControllerScriptingInterface::getNumberOfButtons() const {
+    return getNumberOfActivePalms() * NUMBER_OF_BUTTONS_PER_PALM;
+}
+
+bool ControllerScriptingInterface::isButtonPressed(int buttonIndex) const {
+    int palmIndex = buttonIndex / NUMBER_OF_BUTTONS_PER_PALM;
+    int buttonOnPalm = buttonIndex % NUMBER_OF_BUTTONS_PER_PALM;
+    const PalmData* palmData = getActivePalm(palmIndex);
+    if (palmData) {
+        switch (buttonOnPalm) {
+            case 0:
+                return palmData->getControllerButtons() & BUTTON_0;
+            case 1:
+                return palmData->getControllerButtons() & BUTTON_1;
+            case 2:
+                return palmData->getControllerButtons() & BUTTON_2;
+            case 3:
+                return palmData->getControllerButtons() & BUTTON_3;
+            case 4:
+                return palmData->getControllerButtons() & BUTTON_4;
+            case 5:
+                return palmData->getControllerButtons() & BUTTON_FWD;
+        }
+    }
+    return false;
+}
+
+int ControllerScriptingInterface::getNumberOfTriggers() const {
+    return getNumberOfActivePalms() * NUMBER_OF_TRIGGERS_PER_PALM;
+}
+
+float ControllerScriptingInterface::getTriggerValue(int triggerIndex) const {
+    // we know there's one trigger per palm, so the triggerIndex is the palm Index
+    int palmIndex = triggerIndex;
+    const PalmData* palmData = getActivePalm(palmIndex);
+    if (palmData) {
+        return palmData->getTrigger();
+    }
+    return 0.0f;
+}
+
+int ControllerScriptingInterface::getNumberOfJoysticks() const {
+    return getNumberOfActivePalms() * NUMBER_OF_JOYSTICKS_PER_PALM;
+}
+
+glm::vec2 ControllerScriptingInterface::getJoystickPosition(int joystickIndex) const {
+    // we know there's one joystick per palm, so the joystickIndex is the palm Index
+    int palmIndex = joystickIndex;
+    const PalmData* palmData = getActivePalm(palmIndex);
+    if (palmData) {
+        return glm::vec2(palmData->getJoystickX(), palmData->getJoystickY());
+    }
+    return glm::vec2(0);
+}
+
+int ControllerScriptingInterface::getNumberOfSpatialControls() const {
+    return getNumberOfActivePalms() * NUMBER_OF_SPATIALCONTROLS_PER_PALM;
+}
+
+glm::vec3 ControllerScriptingInterface::getSpatialControlPosition(int controlIndex) const {
+    int palmIndex = controlIndex / NUMBER_OF_SPATIALCONTROLS_PER_PALM;
+    int controlOfPalm = controlIndex % NUMBER_OF_SPATIALCONTROLS_PER_PALM;
+    const PalmData* palmData = getActivePalm(palmIndex);
+    if (palmData) {
+        switch (controlOfPalm) {
+            case PALM_SPATIALCONTROL:
+                return palmData->getPosition();
+            case TIP_SPATIALCONTROL:
+                return palmData->getTipPosition();
+        }
+    }
+    return glm::vec3(0); // bad index
+}
+
+glm::vec3 ControllerScriptingInterface::getSpatialControlVelocity(int controlIndex) const {
+    int palmIndex = controlIndex / NUMBER_OF_SPATIALCONTROLS_PER_PALM;
+    int controlOfPalm = controlIndex % NUMBER_OF_SPATIALCONTROLS_PER_PALM;
+    const PalmData* palmData = getActivePalm(palmIndex);
+    if (palmData) {
+        switch (controlOfPalm) {
+            case PALM_SPATIALCONTROL:
+                return palmData->getVelocity();
+            case TIP_SPATIALCONTROL:
+                return palmData->getTipVelocity();
+        }
+    }
+    return glm::vec3(0); // bad index
+}
+
+glm::vec3 ControllerScriptingInterface::getSpatialControlNormal(int controlIndex) const {
+    int palmIndex = controlIndex / NUMBER_OF_SPATIALCONTROLS_PER_PALM;
+    int controlOfPalm = controlIndex % NUMBER_OF_SPATIALCONTROLS_PER_PALM;
+    const PalmData* palmData = getActivePalm(palmIndex);
+    if (palmData) {
+        switch (controlOfPalm) {
+            case PALM_SPATIALCONTROL:
+                return palmData->getNormal();
+            case TIP_SPATIALCONTROL:
+                return palmData->getNormal(); // currently the tip doesn't have a unique normal, use the palm normal
+        }
+    }
+    return glm::vec3(0); // bad index
+}
+
+
+
diff --git a/interface/src/ControllerScriptingInterface.h b/interface/src/ControllerScriptingInterface.h
new file mode 100644
index 0000000000..d0e032d52f
--- /dev/null
+++ b/interface/src/ControllerScriptingInterface.h
@@ -0,0 +1,52 @@
+//
+//  ControllerScriptingInterface.h
+//  hifi
+//
+//  Created by Brad Hefta-Gaub on 12/17/13
+//  Copyright (c) 2013 HighFidelity, Inc. All rights reserved.
+//
+
+#ifndef __hifi__ControllerScriptingInterface__
+#define __hifi__ControllerScriptingInterface__
+
+#include <QtCore/QObject>
+
+#include <AbstractControllerScriptingInterface.h>
+
+/// handles scripting of input controller commands from JS
+class ControllerScriptingInterface : public AbstractControllerScriptingInterface {
+    Q_OBJECT
+
+public slots:
+    virtual bool isPrimaryButtonPressed() const;
+    virtual glm::vec2 getPrimaryJoystickPosition() const;
+
+    virtual int getNumberOfButtons() const;
+    virtual bool isButtonPressed(int buttonIndex) const;
+
+    virtual int getNumberOfTriggers() const;
+    virtual float getTriggerValue(int triggerIndex) const;
+
+    virtual int getNumberOfJoysticks() const;
+    virtual glm::vec2 getJoystickPosition(int joystickIndex) const;
+
+    virtual int getNumberOfSpatialControls() const;
+    virtual glm::vec3 getSpatialControlPosition(int controlIndex) const;
+    virtual glm::vec3 getSpatialControlVelocity(int controlIndex) const;
+    virtual glm::vec3 getSpatialControlNormal(int controlIndex) const;
+
+private:
+    const PalmData* getPrimaryPalm() const;
+    const PalmData* getPalm(int palmIndex) const;
+    int getNumberOfActivePalms() const;
+    const PalmData* getActivePalm(int palmIndex) const;
+};
+
+const int NUMBER_OF_SPATIALCONTROLS_PER_PALM = 2; // the hand and the tip
+const int NUMBER_OF_JOYSTICKS_PER_PALM = 1;
+const int NUMBER_OF_TRIGGERS_PER_PALM = 1;
+const int NUMBER_OF_BUTTONS_PER_PALM = 6;
+const int PALM_SPATIALCONTROL = 0;
+const int TIP_SPATIALCONTROL = 1;
+
+#endif /* defined(__hifi__ControllerScriptingInterface__) */
diff --git a/interface/src/LogDisplay.cpp b/interface/src/LogDisplay.cpp
index 247ea4beb5..dc365a9ea0 100644
--- a/interface/src/LogDisplay.cpp
+++ b/interface/src/LogDisplay.cpp
@@ -6,12 +6,13 @@
 // Copyright (c) 2013 High Fidelity, Inc. All rights reserved.
 //
 
-#include "LogDisplay.h"
-
 #include <stdio.h>
 #include <stdarg.h>
 #include <string.h>
 
+#include <QStringList>
+
+#include "LogDisplay.h"
 #include "Util.h"
 
 using namespace std;
@@ -91,6 +92,7 @@ void LogDisplay::setCharacterSize(unsigned width, unsigned height) {
 void LogDisplay::addMessage(const char* ptr) {
 
     pthread_mutex_lock(& _mutex);
+    emit logReceived(ptr);
 
     // T-pipe, if requested
     if (_stream != 0l) {
@@ -118,7 +120,7 @@ void LogDisplay::addMessage(const char* ptr) {
             _writePos = _chars;
         }
 
-        if (++_writtenInLine >= _lineLength || c == '\0') {
+        if (c == '\0') {
 
             // new line? store its start to the line buffer and mark next line as empty
             ++_lastLinePos;
@@ -148,13 +150,24 @@ void LogDisplay::addMessage(const char* ptr) {
 
             // remember start position in character buffer for next line and reset character count
             _writeLineStartPos = _writePos;
-            _writtenInLine = 0;
         }
     }
 
     pthread_mutex_unlock(& _mutex);
 }
 
+QStringList LogDisplay::getLogData() {
+    // wait for adding new log data whilr iterating over _lines
+    pthread_mutex_lock(& _mutex);
+    QStringList list;
+    int i = 0;
+    while (_lines[i] != *_lastLinePos) {
+        list.append(_lines[i++]);
+    }
+    pthread_mutex_unlock(& _mutex);
+    return list;
+}
+
 //
 // Rendering
 //
diff --git a/interface/src/LogDisplay.h b/interface/src/LogDisplay.h
index 6f90df3724..285325b180 100644
--- a/interface/src/LogDisplay.h
+++ b/interface/src/LogDisplay.h
@@ -14,7 +14,8 @@
 
 #include "ui/TextRenderer.h"
 
-class LogDisplay {
+class LogDisplay : public QObject {
+    Q_OBJECT
 public:
 
     static LogDisplay instance;
@@ -43,6 +44,11 @@ public:
     static unsigned const LINE_BUFFER_SIZE         = 256;   // number of lines that are buffered
     static unsigned const MAX_MESSAGE_LENGTH       = 512;   // maximum number of characters for a message
 
+    QStringList getLogData();
+
+signals:
+    void logReceived(QString message);
+
 private:
     // use static 'instance' to access the single instance
     LogDisplay();
diff --git a/interface/src/Menu.cpp b/interface/src/Menu.cpp
index d81e22d818..98b807fea2 100644
--- a/interface/src/Menu.cpp
+++ b/interface/src/Menu.cpp
@@ -265,7 +265,7 @@ Menu::Menu() :
     
     addDisabledActionAndSeparator(viewMenu, "Stats");
     addCheckableActionToQMenuAndActionHash(viewMenu, MenuOption::Stats, Qt::Key_Slash);
-    addCheckableActionToQMenuAndActionHash(viewMenu, MenuOption::Log, Qt::CTRL | Qt::Key_L);
+    addActionToQMenuAndActionHash(viewMenu, MenuOption::Log, Qt::CTRL | Qt::Key_L, appInstance, SLOT(toggleLogDialog()));
     addCheckableActionToQMenuAndActionHash(viewMenu, MenuOption::Oscilloscope, 0, true);
     addCheckableActionToQMenuAndActionHash(viewMenu, MenuOption::Bandwidth, 0, true);
     addActionToQMenuAndActionHash(viewMenu, MenuOption::BandwidthDetails, 0, this, SLOT(bandwidthDetails()));
@@ -285,7 +285,8 @@ Menu::Menu() :
     
     addCheckableActionToQMenuAndActionHash(renderOptionsMenu, MenuOption::ParticleCloud, 0, false);
     addCheckableActionToQMenuAndActionHash(renderOptionsMenu, MenuOption::Shadows, 0, false);
-
+    addCheckableActionToQMenuAndActionHash(renderOptionsMenu, MenuOption::Metavoxels, 0, false);
+    
 
     QMenu* voxelOptionsMenu = developerMenu->addMenu("Voxel Options");
 
@@ -701,7 +702,7 @@ QAction* Menu::addActionToQMenuAndActionHash(QMenu* destinationMenu,
         action = destinationMenu->addAction(actionName);
         action->setShortcut(shortcut);
     }
-    action->setMenuRole(role);    
+    action->setMenuRole(role);
     
     _actionHash.insert(actionName, action);
     
diff --git a/interface/src/Menu.h b/interface/src/Menu.h
index b62f49abe4..73bb0472b4 100644
--- a/interface/src/Menu.h
+++ b/interface/src/Menu.h
@@ -146,7 +146,6 @@ private:
     int _boundaryLevelAdjust;
     QAction* _useVoxelShader;
     int _maxVoxelPacketsPerSecond;
-    
     QMenu* _activeScriptsMenu;
 };
 
@@ -219,6 +218,7 @@ namespace MenuOption {
     const QString Login = "Login";
     const QString LookAtIndicator = "Look-at Indicator";
     const QString LookAtVectors = "Look-at Vectors";
+    const QString Metavoxels = "Metavoxels";
     const QString Mirror = "Mirror";
     const QString MoveWithLean = "Move with Lean";
     const QString NewVoxelCullingMode = "New Voxel Culling Mode";
diff --git a/interface/src/avatar/Avatar.cpp b/interface/src/avatar/Avatar.cpp
index f4a09ad069..7762f5afbc 100755
--- a/interface/src/avatar/Avatar.cpp
+++ b/interface/src/avatar/Avatar.cpp
@@ -338,8 +338,6 @@ void Avatar::render(bool forceRenderHead) {
     }
 }
 
-
-
 // returns true if the Leap controls any of the avatar's hands.
 bool Avatar::updateLeapHandPositions() {
     bool returnValue = false;
@@ -443,8 +441,6 @@ glm::quat Avatar::computeRotationFromBodyToWorldUp(float proportion) const {
     return glm::angleAxis(angle * proportion, axis);
 }
 
-
-
 void Avatar::renderBody(bool forceRenderHead) {
 
     if (_head.getVideoFace().isFullFrame()) {
diff --git a/interface/src/avatar/Hand.cpp b/interface/src/avatar/Hand.cpp
index bd3a0a1fac..2fa59ee43f 100755
--- a/interface/src/avatar/Hand.cpp
+++ b/interface/src/avatar/Hand.cpp
@@ -24,11 +24,11 @@ using namespace std;
 const float FINGERTIP_VOXEL_SIZE = 0.05;
 const int TOY_BALL_HAND = 1;
 const float TOY_BALL_RADIUS = 0.05f;
-const float TOY_BALL_DAMPING = 0.99f;
+const float TOY_BALL_DAMPING = 0.1f;
 const glm::vec3 NO_VELOCITY = glm::vec3(0,0,0);
 const glm::vec3 NO_GRAVITY = glm::vec3(0,0,0);
 const float NO_DAMPING = 0.f;
-const glm::vec3 TOY_BALL_GRAVITY = glm::vec3(0,-0.5,0);
+const glm::vec3 TOY_BALL_GRAVITY = glm::vec3(0,-2.0,0);
 const QString TOY_BALL_UPDATE_SCRIPT("");
 const float PALM_COLLISION_RADIUS = 0.03f;
 const float CATCH_RADIUS = 0.2f;
@@ -98,7 +98,7 @@ void Hand::simulateToyBall(PalmData& palm, const glm::vec3& fingerTipPosition, f
             
             // update the particle with it's new state...
 #ifdef DEBUG_HAND
-            qDebug("Update caught particle!\n");
+            qDebug("Caught!\n");
 #endif
             caughtParticle->updateParticle(newPosition,
                                             closestParticle->getRadius(),
@@ -108,6 +108,7 @@ void Hand::simulateToyBall(PalmData& palm, const glm::vec3& fingerTipPosition, f
                                             NO_DAMPING,
                                             IN_HAND, // we just grabbed it!
                                             closestParticle->getUpdateScript());
+            
                                             
             // now tell our hand about us having caught it...
             _toyBallInHand[handID] = true;
@@ -115,6 +116,11 @@ void Hand::simulateToyBall(PalmData& palm, const glm::vec3& fingerTipPosition, f
             //printf(">>>>>>> caught... handID:%d particle ID:%d _toyBallInHand[handID] = true\n", handID, closestParticle->getID());
             _ballParticleEditHandles[handID] = caughtParticle;
             caughtParticle = NULL;
+            //  Play a catch sound!
+            Application::getInstance()->getAudio()->startDrumSound(1.0,
+                                                                   300,
+                                                                   0.5,
+                                                                   0.05);
         }
     }
     
@@ -158,11 +164,17 @@ void Hand::simulateToyBall(PalmData& palm, const glm::vec3& fingerTipPosition, f
                                                                      TOY_BALL_DAMPING,
                                                                      IN_HAND,
                                                                      TOY_BALL_UPDATE_SCRIPT);
+                // Play a new ball sound
+                Application::getInstance()->getAudio()->startDrumSound(1.0,
+                                                                       2000,
+                                                                       0.5,
+                                                                       0.02);
+
             }
         } else {
             //  Ball is in hand
 #ifdef DEBUG_HAND
-            qDebug("Ball in hand\n");
+            //qDebug("Ball in hand\n");
 #endif
             glm::vec3 ballPosition = ballFromHand ? palm.getPosition() : fingerTipPosition;
             _ballParticleEditHandles[handID]->updateParticle(ballPosition / (float)TREE_SCALE,
@@ -178,13 +190,14 @@ void Hand::simulateToyBall(PalmData& palm, const glm::vec3& fingerTipPosition, f
         //  If toy ball just released, add velocity to it!
         if (_toyBallInHand[handID]) {
         
+            const float THROWN_VELOCITY_SCALING = 1.5f;
             _toyBallInHand[handID] = false;
             glm::vec3 ballPosition = ballFromHand ? palm.getPosition() : fingerTipPosition;
             glm::vec3 ballVelocity = ballFromHand ? palm.getRawVelocity() : palm.getTipVelocity();
             glm::quat avatarRotation = _owningAvatar->getOrientation();
             ballVelocity = avatarRotation * ballVelocity;
+            ballVelocity *= THROWN_VELOCITY_SCALING;
 
-            // ball is no longer in hand...
 #ifdef DEBUG_HAND
             qDebug("Threw ball, v = %.3f\n", glm::length(ballVelocity));
 #endif
@@ -201,6 +214,13 @@ void Hand::simulateToyBall(PalmData& palm, const glm::vec3& fingerTipPosition, f
             // note: deleting the edit handle doesn't effect the actual particle
             delete _ballParticleEditHandles[handID];
             _ballParticleEditHandles[handID] = NULL;
+            
+            // Play a throw sound
+            Application::getInstance()->getAudio()->startDrumSound(1.0,
+                                                                   3000,
+                                                                   0.5,
+                                                                   0.02);
+
 
         }
     }
diff --git a/interface/src/main.cpp b/interface/src/main.cpp
index 07788fefe0..7a5703a881 100644
--- a/interface/src/main.cpp
+++ b/interface/src/main.cpp
@@ -19,11 +19,23 @@
 
 #include <QDebug>
 #include <QDir>
+#include <SharedUtil.h>
 
 int main(int argc, const char * argv[]) {
     timeval startup_time;
     gettimeofday(&startup_time, NULL);
     
+    // Debug option to demonstrate that the client's local time does not 
+    // need to be in sync with any other network node. This forces clock 
+    // skew for the individual client
+    const char* CLOCK_SKEW = "--clockSkew";
+    const char* clockSkewOption = getCmdOption(argc, argv, CLOCK_SKEW);
+    if (clockSkewOption) {
+        int clockSkew = atoi(clockSkewOption);
+        usecTimestampNowForceClockSkew(clockSkew);
+        qDebug("clockSkewOption=%s clockSkew=%d\n", clockSkewOption, clockSkew);
+    }
+    
     int exitCode;
     {
         Application app(argc, const_cast<char**>(argv), startup_time);
diff --git a/interface/src/renderer/MetavoxelSystem.cpp b/interface/src/renderer/MetavoxelSystem.cpp
new file mode 100644
index 0000000000..543a8b6301
--- /dev/null
+++ b/interface/src/renderer/MetavoxelSystem.cpp
@@ -0,0 +1,122 @@
+//
+//  MetavoxelSystem.cpp
+//  interface
+//
+//  Created by Andrzej Kapolka on 12/10/13.
+//  Copyright (c) 2013 High Fidelity, Inc. All rights reserved.
+//
+
+#include <QFile>
+#include <QTextStream>
+#include <QtDebug>
+
+#include <SharedUtil.h>
+
+#include "Application.h"
+#include "MetavoxelSystem.h"
+
+ProgramObject MetavoxelSystem::_program;
+int MetavoxelSystem::_pointScaleLocation;
+
+MetavoxelSystem::MetavoxelSystem() :
+    _pointVisitor(_points),
+    _buffer(QOpenGLBuffer::VertexBuffer) {
+}
+
+void MetavoxelSystem::init() {
+    if (!_program.isLinked()) {
+        switchToResourcesParentIfRequired();
+        _program.addShaderFromSourceFile(QGLShader::Vertex, "resources/shaders/metavoxel_point.vert");
+        _program.link();
+       
+        _pointScaleLocation = _program.uniformLocation("pointScale");
+    }
+    
+    AttributeRegistry::getInstance()->configureScriptEngine(&_scriptEngine);
+    
+    QFile scriptFile("resources/scripts/sphere.js");
+    scriptFile.open(QIODevice::ReadOnly);
+    QScriptValue guideFunction = _scriptEngine.evaluate(QTextStream(&scriptFile).readAll());
+    _data.setAttributeValue(MetavoxelPath(), AttributeValue(AttributeRegistry::getInstance()->getGuideAttribute(),
+        encodeInline(PolymorphicDataPointer(new ScriptedMetavoxelGuide(guideFunction)))));
+    
+    _buffer.setUsagePattern(QOpenGLBuffer::DynamicDraw);
+    _buffer.create();
+}
+
+void MetavoxelSystem::simulate(float deltaTime) {
+    _points.clear();
+    _data.guide(_pointVisitor);
+    
+    _buffer.bind();
+    int bytes = _points.size() * sizeof(Point);
+    if (_buffer.size() < bytes) {
+        _buffer.allocate(_points.constData(), bytes);
+    } else {
+        _buffer.write(0, _points.constData(), bytes);
+    }
+    _buffer.release();
+}
+
+void MetavoxelSystem::render() {
+    int viewport[4];
+    glGetIntegerv(GL_VIEWPORT, viewport);
+    const int VIEWPORT_WIDTH_INDEX = 2;
+    const int VIEWPORT_HEIGHT_INDEX = 3;
+    float viewportWidth = viewport[VIEWPORT_WIDTH_INDEX];
+    float viewportHeight = viewport[VIEWPORT_HEIGHT_INDEX];
+    float viewportDiagonal = sqrtf(viewportWidth*viewportWidth + viewportHeight*viewportHeight);
+    float worldDiagonal = glm::distance(Application::getInstance()->getViewFrustum()->getNearBottomLeft(),
+        Application::getInstance()->getViewFrustum()->getNearTopRight());
+
+    _program.bind();
+    _program.setUniformValue(_pointScaleLocation, viewportDiagonal *
+        Application::getInstance()->getViewFrustum()->getNearClip() / worldDiagonal);
+        
+    _buffer.bind();
+
+    Point* pt = 0;
+    glVertexPointer(4, GL_FLOAT, sizeof(Point), &pt->vertex);
+    glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(Point), &pt->color);
+    glNormalPointer(GL_BYTE, sizeof(Point), &pt->normal);    
+
+    glEnableClientState(GL_VERTEX_ARRAY);
+    glEnableClientState(GL_COLOR_ARRAY);
+    glEnableClientState(GL_NORMAL_ARRAY);
+
+    glEnable(GL_VERTEX_PROGRAM_POINT_SIZE_ARB);
+    
+    glDrawArrays(GL_POINTS, 0, _points.size());
+    
+    glDisable(GL_VERTEX_PROGRAM_POINT_SIZE_ARB);
+    
+    glDisableClientState(GL_VERTEX_ARRAY);
+    glDisableClientState(GL_COLOR_ARRAY);
+    glDisableClientState(GL_NORMAL_ARRAY);
+    
+    _buffer.release();
+    
+    _program.release();
+}
+
+MetavoxelSystem::PointVisitor::PointVisitor(QVector<Point>& points) :
+    MetavoxelVisitor(QVector<AttributePointer>() <<
+        AttributeRegistry::getInstance()->getColorAttribute() <<
+        AttributeRegistry::getInstance()->getNormalAttribute()),
+    _points(points) {
+}
+
+bool MetavoxelSystem::PointVisitor::visit(const MetavoxelInfo& info) {
+    if (!info.isLeaf) {
+        return true;
+    }
+    QRgb color = info.attributeValues.at(0).getInlineValue<QRgb>();
+    QRgb normal = info.attributeValues.at(1).getInlineValue<QRgb>();
+    int alpha = qAlpha(color);
+    if (alpha > 0) {
+        Point point = { glm::vec4(info.minimum + glm::vec3(info.size, info.size, info.size) * 0.5f, info.size),
+            { qRed(color), qGreen(color), qBlue(color), alpha }, { qRed(normal), qGreen(normal), qBlue(normal) } };
+        _points.append(point);
+    }
+    return false;
+}
diff --git a/interface/src/renderer/MetavoxelSystem.h b/interface/src/renderer/MetavoxelSystem.h
new file mode 100644
index 0000000000..b8617d99a4
--- /dev/null
+++ b/interface/src/renderer/MetavoxelSystem.h
@@ -0,0 +1,61 @@
+//
+//  MetavoxelSystem.h
+//  interface
+//
+//  Created by Andrzej Kapolka on 12/10/13.
+//  Copyright (c) 2013 High Fidelity, Inc. All rights reserved.
+//
+
+#ifndef __interface__MetavoxelSystem__
+#define __interface__MetavoxelSystem__
+
+#include <QOpenGLBuffer>
+#include <QScriptEngine>
+#include <QVector>
+
+#include <glm/glm.hpp>
+
+#include <MetavoxelData.h>
+
+#include "ProgramObject.h"
+
+/// Renders a metavoxel tree.
+class MetavoxelSystem {
+public:
+
+    MetavoxelSystem();
+
+    void init();
+    
+    void simulate(float deltaTime);
+    void render();
+    
+private:
+
+    class Point {
+    public:
+        glm::vec4 vertex;
+        quint8 color[4];
+        quint8 normal[3];
+    };
+    
+    class PointVisitor : public MetavoxelVisitor {
+    public:
+        PointVisitor(QVector<Point>& points);
+        virtual bool visit(const MetavoxelInfo& info);
+    
+    private:
+        QVector<Point>& _points;
+    };
+    
+    static ProgramObject _program;
+    static int _pointScaleLocation;
+    
+    QScriptEngine _scriptEngine;
+    MetavoxelData _data;
+    QVector<Point> _points;
+    PointVisitor _pointVisitor;
+    QOpenGLBuffer _buffer;
+};
+
+#endif /* defined(__interface__MetavoxelSystem__) */
diff --git a/interface/src/ui/LogDialog.cpp b/interface/src/ui/LogDialog.cpp
new file mode 100644
index 0000000000..013c60d993
--- /dev/null
+++ b/interface/src/ui/LogDialog.cpp
@@ -0,0 +1,75 @@
+//
+//  LogDialog.cpp
+//  interface
+//
+//  Created by Stojce Slavkovski on 12/12/13.
+//  Copyright (c) 2013 High Fidelity, Inc. All rights reserved.
+//
+
+#include <QDesktopWidget>
+#include <QTextBlock>
+#include <QtGui>
+
+#include "SharedUtil.h"
+#include "ui/LogDialog.h"
+#include "LogDisplay.h"
+
+const int INITIAL_WIDTH  = 720;
+const float INITIAL_HEIGHT_RATIO = 0.6f;
+
+int cursorMeta = qRegisterMetaType<QTextCursor>("QTextCursor");
+int blockMeta = qRegisterMetaType<QTextBlock>("QTextBlock");
+
+LogDialog::LogDialog(QWidget* parent) : QDialog(parent, Qt::Dialog) {
+
+    setWindowTitle("Log");
+
+    _logTextBox = new QPlainTextEdit(this);
+    _logTextBox->setReadOnly(true);
+    _logTextBox->show();
+
+    switchToResourcesParentIfRequired();
+    QFile styleSheet("resources/styles/log_dialog.qss");
+
+    if (styleSheet.open(QIODevice::ReadOnly)) {
+        setStyleSheet(styleSheet.readAll());
+    }
+
+    QDesktopWidget desktop;
+    QRect screen = desktop.screenGeometry();
+    resize(INITIAL_WIDTH, static_cast<int>(screen.height() * INITIAL_HEIGHT_RATIO));
+    move(screen.center() - rect().center());
+
+    setAttribute(Qt::WA_DeleteOnClose);
+}
+
+LogDialog::~LogDialog() {
+    deleteLater();
+}
+
+void LogDialog::showEvent(QShowEvent *e)  {
+    _logTextBox->clear();
+
+    pthread_mutex_lock(& _mutex);
+    QStringList _logData = LogDisplay::instance.getLogData();
+
+    connect(&LogDisplay::instance, &LogDisplay::logReceived, this, &LogDialog::appendLogLine);
+    for(int i = 0; i < _logData.size(); ++i) {
+        appendLogLine(_logData[i]);
+    }
+
+    pthread_mutex_unlock(& _mutex);
+}
+
+void LogDialog::resizeEvent(QResizeEvent *e) {
+    _logTextBox->resize(width(), height());
+}
+
+void LogDialog::appendLogLine(QString logLine) {
+    if (isVisible()) {
+        pthread_mutex_lock(& _mutex);
+        _logTextBox->appendPlainText(logLine.simplified());
+        pthread_mutex_unlock(& _mutex);
+        _logTextBox->ensureCursorVisible();
+    }
+}
diff --git a/interface/src/ui/LogDialog.h b/interface/src/ui/LogDialog.h
new file mode 100644
index 0000000000..808ac4a485
--- /dev/null
+++ b/interface/src/ui/LogDialog.h
@@ -0,0 +1,36 @@
+//
+//  LogDialog.h
+//  interface
+//
+//  Created by Stojce Slavkovski on 12/12/13.
+//  Copyright (c) 2013 High Fidelity, Inc. All rights reserved.
+//
+
+#ifndef __interface__LogDialog__
+#define __interface__LogDialog__
+
+#include <QDialog>
+#include <QPlainTextEdit>
+
+class LogDialog : public QDialog {
+    Q_OBJECT
+
+public:
+    LogDialog(QWidget* parent);
+    ~LogDialog();
+
+public slots:
+    void appendLogLine(QString logLine);
+
+protected:
+    void resizeEvent(QResizeEvent* e);
+    void showEvent(QShowEvent* e);
+
+private:
+    QPlainTextEdit* _logTextBox;
+    pthread_mutex_t _mutex;
+
+};
+
+#endif
+
diff --git a/libraries/avatars/src/HandData.cpp b/libraries/avatars/src/HandData.cpp
index cf91af902a..e8b2c97ff0 100644
--- a/libraries/avatars/src/HandData.cpp
+++ b/libraries/avatars/src/HandData.cpp
@@ -169,6 +169,9 @@ int HandData::decodeRemoteData(unsigned char* sourceBuffer) {
         palm.setRawNormal(handNormal);
         palm.setActive(true);
         
+        //  For received data, set the sixense controller ID to match the order initialized and sent - 0 Left, 1 Right
+        palm.setSixenseID(handIndex);
+        
         for (unsigned int fingerIndex = 0; fingerIndex < numFingers; ++fingerIndex) {
             if (fingerIndex < palm.getNumFingers()) {
                 FingerData& finger = palm.getFingers()[fingerIndex];
diff --git a/libraries/avatars/src/HandData.h b/libraries/avatars/src/HandData.h
index abeb7f9686..a0c8fed980 100755
--- a/libraries/avatars/src/HandData.h
+++ b/libraries/avatars/src/HandData.h
@@ -53,9 +53,10 @@ public:
     glm::vec3 worldPositionToLeapPosition(const glm::vec3& worldPosition) const;
     glm::vec3 worldVectorToLeapVector(const glm::vec3& worldVector) const;
 
-    std::vector<PalmData>& getPalms()    { return _palms; }
-    size_t                 getNumPalms() { return _palms.size(); }
-    PalmData&              addNewPalm();
+    std::vector<PalmData>& getPalms() { return _palms; }
+    const std::vector<PalmData>& getPalms() const { return _palms; }
+    size_t getNumPalms() const { return _palms.size(); }
+    PalmData& addNewPalm();
 
     /// Finds the indices of the left and right palms according to their locations, or -1 if either or
     /// both is not found.
@@ -137,17 +138,18 @@ public:
 
     const glm::vec3& getRawPosition() const { return _rawPosition; }
     const glm::vec3& getRawNormal()   const { return _rawNormal; }
-    bool             isActive()       const { return _isActive; }
-    int              getLeapID()      const { return _leapID; }
-    int              getSixenseID()   const { return _sixenseID; }
+    bool isActive() const { return _isActive; }
+    int getLeapID() const { return _leapID; }
+    int getSixenseID() const { return _sixenseID; }
 
 
-    std::vector<FingerData>& getFingers()    { return _fingers; }
-    size_t                   getNumFingers() { return _fingers.size(); }
+    std::vector<FingerData>& getFingers() { return _fingers; }
+    const std::vector<FingerData>& getFingers() const { return _fingers; }
+    size_t getNumFingers() const { return _fingers.size(); }
 
-    void setActive(bool active)                { _isActive = active; }
-    void setLeapID(int id)                     { _leapID = id; }
-    void setSixenseID(int id)                  { _sixenseID = id; }
+    void setActive(bool active) { _isActive = active; }
+    void setLeapID(int id) { _leapID = id; }
+    void setSixenseID(int id) { _sixenseID = id; }
 
     void setRawRotation(const glm::quat rawRotation) { _rawRotation = rawRotation; };
     glm::quat getRawRotation() const { return _rawRotation; }
@@ -164,27 +166,27 @@ public:
     const glm::vec3& getTipVelocity() const { return _tipVelocity; }
     void setTipVelocity(const glm::vec3& velocity) { _tipVelocity = velocity; }
     
-    void incrementFramesWithoutData()          { _numFramesWithoutData++; }
-    void resetFramesWithoutData()              { _numFramesWithoutData = 0; }
-    int  getFramesWithoutData()          const { return _numFramesWithoutData; }
+    void incrementFramesWithoutData() { _numFramesWithoutData++; }
+    void resetFramesWithoutData() { _numFramesWithoutData = 0; }
+    int  getFramesWithoutData() const { return _numFramesWithoutData; }
     
     // Controller buttons
     void setControllerButtons(int controllerButtons) { _controllerButtons = controllerButtons; }
     void setLastControllerButtons(int controllerButtons) { _lastControllerButtons = controllerButtons; }
 
-    int getControllerButtons() { return _controllerButtons; }
-    int getLastControllerButtons() { return _lastControllerButtons; }
+    int getControllerButtons() const { return _controllerButtons; }
+    int getLastControllerButtons() const { return _lastControllerButtons; }
     
     void setTrigger(float trigger) { _trigger = trigger; }
-    float getTrigger() { return _trigger; }
+    float getTrigger() const { return _trigger; }
     void setJoystick(float joystickX, float joystickY) { _joystickX = joystickX; _joystickY = joystickY; }
-    float getJoystickX() { return _joystickX; }
-    float getJoystickY() { return _joystickY; }
+    float getJoystickX() const { return _joystickX; }
+    float getJoystickY() const { return _joystickY; }
     
-    bool getIsCollidingWithVoxel() { return _isCollidingWithVoxel; }
+    bool getIsCollidingWithVoxel() const { return _isCollidingWithVoxel; }
     void setIsCollidingWithVoxel(bool isCollidingWithVoxel) { _isCollidingWithVoxel = isCollidingWithVoxel; }
 
-    bool getIsCollidingWithPalm() { return _isCollidingWithPalm; }
+    bool getIsCollidingWithPalm() const { return _isCollidingWithPalm; }
     void setIsCollidingWithPalm(bool isCollidingWithPalm) { _isCollidingWithPalm = isCollidingWithPalm; }
 
 private:
diff --git a/libraries/metavoxels/CMakeLists.txt b/libraries/metavoxels/CMakeLists.txt
new file mode 100644
index 0000000000..0f9c1c695c
--- /dev/null
+++ b/libraries/metavoxels/CMakeLists.txt
@@ -0,0 +1,20 @@
+cmake_minimum_required(VERSION 2.8)
+
+set(ROOT_DIR ../..)
+set(MACRO_DIR ${ROOT_DIR}/cmake/macros)
+
+# setup for find modules
+set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/modules/")
+
+set(TARGET_NAME metavoxels)
+
+find_package(Qt5Widgets REQUIRED)
+
+include(${MACRO_DIR}/SetupHifiLibrary.cmake)
+setup_hifi_library(${TARGET_NAME})
+
+qt5_use_modules(${TARGET_NAME} Widgets Script)
+
+include(${MACRO_DIR}/IncludeGLM.cmake)
+include_glm(${TARGET_NAME} ${ROOT_DIR})
+
diff --git a/libraries/metavoxels/src/AttributeRegistry.cpp b/libraries/metavoxels/src/AttributeRegistry.cpp
new file mode 100644
index 0000000000..5fb03035da
--- /dev/null
+++ b/libraries/metavoxels/src/AttributeRegistry.cpp
@@ -0,0 +1,143 @@
+//
+//  AttributeRegistry.cpp
+//  metavoxels
+//
+//  Created by Andrzej Kapolka on 12/6/13.
+//  Copyright (c) 2013 High Fidelity, Inc. All rights reserved.
+//
+
+#include <QScriptEngine>
+
+#include "AttributeRegistry.h"
+#include "MetavoxelData.h"
+
+AttributeRegistry AttributeRegistry::_instance;
+
+AttributeRegistry::AttributeRegistry() :
+    _guideAttribute(registerAttribute(new PolymorphicAttribute("guide", PolymorphicDataPointer(new DefaultMetavoxelGuide())))),
+    _colorAttribute(registerAttribute(new QRgbAttribute("color"))),
+    _normalAttribute(registerAttribute(new QRgbAttribute("normal", qRgb(0, 127, 0)))) {
+}
+
+void AttributeRegistry::configureScriptEngine(QScriptEngine* engine) {
+    QScriptValue registry = engine->newObject();
+    registry.setProperty("colorAttribute", engine->newQObject(_colorAttribute.data()));
+    registry.setProperty("normalAttribute", engine->newQObject(_normalAttribute.data()));
+    registry.setProperty("getAttribute", engine->newFunction(getAttribute, 1));
+    engine->globalObject().setProperty("AttributeRegistry", registry);
+}
+
+AttributePointer AttributeRegistry::registerAttribute(AttributePointer attribute) {
+    AttributePointer& pointer = _attributes[attribute->getName()];
+    if (!pointer) {
+        pointer = attribute;
+    }
+    return pointer;
+}
+
+QScriptValue AttributeRegistry::getAttribute(QScriptContext* context, QScriptEngine* engine) {
+    return engine->newQObject(_instance.getAttribute(context->argument(0).toString()).data(), QScriptEngine::QtOwnership,
+        QScriptEngine::PreferExistingWrapperObject);
+}
+
+AttributeValue::AttributeValue(const AttributePointer& attribute) :
+    _attribute(attribute), _value(attribute ? attribute->getDefaultValue() : NULL) {
+}
+
+AttributeValue::AttributeValue(const AttributePointer& attribute, void* value) :
+    _attribute(attribute), _value(value) {
+}
+
+void* AttributeValue::copy() const {
+    return _attribute->create(_value);
+}
+
+bool AttributeValue::isDefault() const {
+    return !_attribute || _attribute->equal(_value, _attribute->getDefaultValue());
+}
+
+bool AttributeValue::operator==(const AttributeValue& other) const {
+    return _attribute == other._attribute && (!_attribute || _attribute->equal(_value, other._value));
+}
+
+bool AttributeValue::operator==(void* other) const {
+    return _attribute && _attribute->equal(_value, other);
+}
+
+OwnedAttributeValue::OwnedAttributeValue(const AttributePointer& attribute) :
+    AttributeValue(attribute, attribute ? attribute->create() : NULL) {
+}
+
+OwnedAttributeValue::OwnedAttributeValue(const AttributePointer& attribute, void* value) :
+    AttributeValue(attribute, attribute ? attribute->create(value) : NULL) {
+}
+
+OwnedAttributeValue::OwnedAttributeValue(const AttributeValue& other) :
+    AttributeValue(other.getAttribute(), other.getAttribute() ? other.copy() : NULL) {
+}
+
+OwnedAttributeValue::~OwnedAttributeValue() {
+    if (_attribute) {
+        _attribute->destroy(_value);
+    }
+}
+
+OwnedAttributeValue& OwnedAttributeValue::operator=(const AttributeValue& other) {
+    if (_attribute) {
+        _attribute->destroy(_value);
+    }
+    if ((_attribute = other.getAttribute())) {
+        _value = _attribute->create(other.getValue());
+    }
+    return *this;
+}
+
+Attribute::Attribute(const QString& name) {
+    setObjectName(name);
+}
+
+Attribute::~Attribute() {
+}
+
+QRgbAttribute::QRgbAttribute(const QString& name, QRgb defaultValue) :
+    InlineAttribute<QRgb>(name, defaultValue) {
+}
+ 
+bool QRgbAttribute::merge(void*& parent, void* children[]) const {
+    QRgb firstValue = decodeInline<QRgb>(children[0]);
+    int totalRed = qRed(firstValue);
+    int totalGreen = qGreen(firstValue);
+    int totalBlue = qBlue(firstValue);
+    int totalAlpha = qAlpha(firstValue);
+    bool allChildrenEqual = true;
+    for (int i = 1; i < Attribute::MERGE_COUNT; i++) {
+        QRgb value = decodeInline<QRgb>(children[i]);
+        totalRed += qRed(value);
+        totalGreen += qGreen(value);
+        totalBlue += qBlue(value);
+        totalAlpha += qAlpha(value);
+        allChildrenEqual &= (firstValue == value);
+    }
+    parent = encodeInline(qRgba(totalRed / MERGE_COUNT, totalGreen / MERGE_COUNT,
+        totalBlue / MERGE_COUNT, totalAlpha / MERGE_COUNT));
+    return allChildrenEqual;
+} 
+
+void* QRgbAttribute::createFromScript(const QScriptValue& value, QScriptEngine* engine) const {
+    return encodeInline((QRgb)value.toUInt32());
+}
+
+PolymorphicData::~PolymorphicData() {
+}
+
+template<> PolymorphicData* QExplicitlySharedDataPointer<PolymorphicData>::clone() {
+    return d->clone();
+}
+
+PolymorphicAttribute::PolymorphicAttribute(const QString& name, const PolymorphicDataPointer& defaultValue) :
+    InlineAttribute<PolymorphicDataPointer>(name, defaultValue) {
+}
+
+bool PolymorphicAttribute::merge(void*& parent, void* children[]) const {
+    return false;
+}
diff --git a/libraries/metavoxels/src/AttributeRegistry.h b/libraries/metavoxels/src/AttributeRegistry.h
new file mode 100644
index 0000000000..a5f9c08f8b
--- /dev/null
+++ b/libraries/metavoxels/src/AttributeRegistry.h
@@ -0,0 +1,275 @@
+//
+//  AttributeRegistry.h
+//  metavoxels
+//
+//  Created by Andrzej Kapolka on 12/6/13.
+//  Copyright (c) 2013 High Fidelity, Inc. All rights reserved.
+//
+
+#ifndef __interface__AttributeRegistry__
+#define __interface__AttributeRegistry__
+
+#include <QColor>
+#include <QExplicitlySharedDataPointer>
+#include <QHash>
+#include <QObject>
+#include <QSharedData>
+#include <QSharedPointer>
+#include <QString>
+
+#include "Bitstream.h"
+
+class QScriptContext;
+class QScriptEngine;
+class QScriptValue;
+
+class Attribute;
+
+typedef QSharedPointer<Attribute> AttributePointer;
+
+/// Maintains information about metavoxel attribute types.
+class AttributeRegistry {
+public:
+    
+    /// Returns a pointer to the singleton registry instance.
+    static AttributeRegistry* getInstance() { return &_instance; }
+    
+    AttributeRegistry();
+    
+    /// Configures the supplied script engine with the global AttributeRegistry property.
+    void configureScriptEngine(QScriptEngine* engine);
+    
+    /// Registers an attribute with the system.  The registry assumes ownership of the object.
+    /// \return either the pointer passed as an argument, if the attribute wasn't already registered, or the existing
+    /// attribute
+    AttributePointer registerAttribute(Attribute* attribute) { return registerAttribute(AttributePointer(attribute)); }
+    
+    /// Registers an attribute with the system.
+    /// \return either the pointer passed as an argument, if the attribute wasn't already registered, or the existing
+    /// attribute
+    AttributePointer registerAttribute(AttributePointer attribute);
+    
+    /// Retrieves an attribute by name.
+    AttributePointer getAttribute(const QString& name) const { return _attributes.value(name); }
+    
+    /// Returns a reference to the standard PolymorphicDataPointer "guide" attribute.
+    const AttributePointer& getGuideAttribute() const { return _guideAttribute; }
+    
+    /// Returns a reference to the standard QRgb "color" attribute.
+    const AttributePointer& getColorAttribute() const { return _colorAttribute; }
+    
+    /// Returns a reference to the standard QRgb "normal" attribute.
+    const AttributePointer& getNormalAttribute() const { return _normalAttribute; }
+    
+private:
+
+    static QScriptValue getAttribute(QScriptContext* context, QScriptEngine* engine);
+
+    static AttributeRegistry _instance;
+
+    QHash<QString, AttributePointer> _attributes;
+    AttributePointer _guideAttribute;
+    AttributePointer _colorAttribute;
+    AttributePointer _normalAttribute;
+};
+
+/// Converts a value to a void pointer.
+template<class T> inline void* encodeInline(T value) {
+    return *(void**)&value;
+}
+
+/// Extracts a value from a void pointer.
+template<class T> inline T decodeInline(void* value) {
+    return *(T*)&value;
+}
+
+/// Pairs an attribute value with its type.
+class AttributeValue {
+public:
+    
+    AttributeValue(const AttributePointer& attribute = AttributePointer());
+    AttributeValue(const AttributePointer& attribute, void* value);
+    
+    AttributePointer getAttribute() const { return _attribute; }
+    void* getValue() const { return _value; }
+    
+    template<class T> void setInlineValue(T value) { _value = encodeInline(value); }
+    template<class T> T getInlineValue() const { return decodeInline<T>(_value); }
+    
+    template<class T> T* getPointerValue() const { return static_cast<T*>(_value); }
+    
+    void* copy() const;
+
+    bool isDefault() const;
+
+    bool operator==(const AttributeValue& other) const;
+    bool operator==(void* other) const;
+    
+protected:
+    
+    AttributePointer _attribute;
+    void* _value;
+};
+
+// Assumes ownership of an attribute value.
+class OwnedAttributeValue : public AttributeValue {
+public:
+    
+    OwnedAttributeValue(const AttributePointer& attribute = AttributePointer());
+    OwnedAttributeValue(const AttributePointer& attribute, void* value);
+    OwnedAttributeValue(const AttributeValue& other);
+    ~OwnedAttributeValue();
+    
+    OwnedAttributeValue& operator=(const AttributeValue& other);
+};
+
+/// Represents a registered attribute.
+class Attribute : public QObject {
+    Q_OBJECT
+    
+public:
+    
+    static const int MERGE_COUNT = 8;
+    
+    Attribute(const QString& name);
+    virtual ~Attribute();
+
+    Q_INVOKABLE QString getName() const { return objectName(); }
+
+    void* create() const { return create(getDefaultValue()); }
+    virtual void* create(void* copy) const = 0;
+    virtual void destroy(void* value) const = 0;
+
+    virtual bool read(Bitstream& in, void*& value) const = 0;
+    virtual bool write(Bitstream& out, void* value) const = 0;
+
+    virtual bool equal(void* first, void* second) const = 0;
+
+    /// Merges the value of a parent and its children.
+    /// \return whether or not the children and parent values are all equal
+    virtual bool merge(void*& parent, void* children[]) const = 0;
+
+    virtual void* getDefaultValue() const = 0;
+
+    virtual void* createFromScript(const QScriptValue& value, QScriptEngine* engine) const { return create(); }
+};
+
+/// A simple attribute class that stores its values inline.
+template<class T, int bits = 32> class InlineAttribute : public Attribute {
+public:
+    
+    InlineAttribute(const QString& name, const T& defaultValue = T()) : Attribute(name), _defaultValue(defaultValue) { }
+    
+    virtual void* create(void* copy) const { void* value; new (&value) T(*(T*)&copy); return value; }
+    virtual void destroy(void* value) const { ((T*)&value)->~T(); }
+    
+    virtual bool read(Bitstream& in, void*& value) const { value = getDefaultValue(); in.read(&value, bits); return false; }
+    virtual bool write(Bitstream& out, void* value) const { out.write(&value, bits); return false; }
+
+    virtual bool equal(void* first, void* second) const { return decodeInline<T>(first) == decodeInline<T>(second); }
+
+    virtual void* getDefaultValue() const { return encodeInline(_defaultValue); }
+
+private:
+    
+    T _defaultValue;
+};
+
+/// Provides merging using the =, ==, += and /= operators.
+template<class T, int bits = 32> class SimpleInlineAttribute : public InlineAttribute<T, bits> {
+public:
+    
+    SimpleInlineAttribute(const QString& name, T defaultValue = T()) : InlineAttribute<T, bits>(name, defaultValue) { }
+    
+    virtual bool merge(void*& parent, void* children[]) const;
+};
+
+template<class T, int bits> inline bool SimpleInlineAttribute<T, bits>::merge(void*& parent, void* children[]) const {
+    T& merged = *(T*)&parent;
+    merged = decodeInline<T>(children[0]);
+    bool allChildrenEqual = true;
+    for (int i = 1; i < Attribute::MERGE_COUNT; i++) {
+        merged += decodeInline<T>(children[i]);
+        allChildrenEqual &= (decodeInline<T>(children[0]) == decodeInline<T>(children[i]));
+    }
+    merged /= Attribute::MERGE_COUNT;
+    return allChildrenEqual;
+}
+
+/// Provides appropriate averaging for RGBA values.
+class QRgbAttribute : public InlineAttribute<QRgb> {
+public:
+    
+    QRgbAttribute(const QString& name, QRgb defaultValue = QRgb());
+    
+    virtual bool merge(void*& parent, void* children[]) const;
+    
+    virtual void* createFromScript(const QScriptValue& value, QScriptEngine* engine) const;
+};
+
+/// An attribute class that stores pointers to its values.
+template<class T> class PointerAttribute : public Attribute {
+public:
+    
+    PointerAttribute(const QString& name, T defaultValue = T()) : Attribute(name), _defaultValue(defaultValue) { }
+    
+    virtual void* create(void* copy) const { new T(*static_cast<T*>(copy)); }
+    virtual void destroy(void* value) const { delete static_cast<T*>(value); }
+    
+    virtual bool read(Bitstream& in, void*& value) const { in >> *static_cast<T*>(value); return true; }
+    virtual bool write(Bitstream& out, void* value) const { out << *static_cast<T*>(value); return true; }
+
+    virtual bool equal(void* first, void* second) const { return *static_cast<T*>(first) == *static_cast<T*>(second); }
+
+    virtual void* getDefaultValue() const { return const_cast<void*>((void*)&_defaultValue); }
+
+private:
+    
+    T _defaultValue;
+}; 
+
+/// Provides merging using the =, ==, += and /= operators.
+template<class T> class SimplePointerAttribute : public PointerAttribute<T> {
+public:
+    
+    SimplePointerAttribute(const QString& name, T defaultValue = T()) : PointerAttribute<T>(name, defaultValue) { }
+    
+    virtual bool merge(void*& parent, void* children[]) const;
+};
+
+template<class T> inline bool SimplePointerAttribute<T>::merge(void*& parent, void* children[]) const {
+    T& merged = *static_cast<T*>(parent);
+    merged = *static_cast<T*>(children[0]);
+    bool allChildrenEqual = true;
+    for (int i = 1; i < Attribute::MERGE_COUNT; i++) {
+        merged += *static_cast<T*>(children[i]);
+        allChildrenEqual &= (*static_cast<T*>(children[0]) == *static_cast<T*>(children[i]));
+    }
+    merged /= Attribute::MERGE_COUNT;
+    return allChildrenEqual;
+}
+
+/// Base class for polymorphic attribute data.  
+class PolymorphicData : public QSharedData {
+public:
+    
+    virtual ~PolymorphicData();
+    
+    /// Creates a new clone of this object.
+    virtual PolymorphicData* clone() const = 0;
+};
+
+template<> PolymorphicData* QExplicitlySharedDataPointer<PolymorphicData>::clone();
+
+typedef QExplicitlySharedDataPointer<PolymorphicData> PolymorphicDataPointer;
+
+/// Provides polymorphic streaming and averaging.
+class PolymorphicAttribute : public InlineAttribute<PolymorphicDataPointer> {
+public:
+
+    PolymorphicAttribute(const QString& name, const PolymorphicDataPointer& defaultValue = PolymorphicDataPointer());
+    
+    virtual bool merge(void*& parent, void* children[]) const;
+};
+
+#endif /* defined(__interface__AttributeRegistry__) */
diff --git a/libraries/metavoxels/src/Bitstream.cpp b/libraries/metavoxels/src/Bitstream.cpp
new file mode 100644
index 0000000000..ac91bdf767
--- /dev/null
+++ b/libraries/metavoxels/src/Bitstream.cpp
@@ -0,0 +1,81 @@
+//
+//  Bitstream.cpp
+//  metavoxels
+//
+//  Created by Andrzej Kapolka on 12/2/13.
+//  Copyright (c) 2013 High Fidelity, Inc. All rights reserved.
+//
+
+#include <QDataStream>
+
+#include "Bitstream.h"
+
+Bitstream::Bitstream(QDataStream& underlying)
+    : _underlying(underlying), _byte(0), _position(0) {
+}
+
+const int BITS_IN_BYTE = 8;
+const int LAST_BIT_POSITION = BITS_IN_BYTE - 1;
+
+Bitstream& Bitstream::write(const void* data, int bits, int offset) {
+    const quint8* source = (const quint8*)data;
+    while (bits > 0) {
+        int bitsToWrite = qMin(BITS_IN_BYTE - _position, qMin(BITS_IN_BYTE - offset, bits));
+        _byte |= ((*source >> offset) & ((1 << bitsToWrite) - 1)) << _position;
+        if ((_position += bitsToWrite) == BITS_IN_BYTE) {
+            flush();
+        }
+        if ((offset += bitsToWrite) == BITS_IN_BYTE) {
+            source++;
+            offset = 0;
+        }
+        bits -= bitsToWrite;
+    }
+    return *this;
+}
+
+Bitstream& Bitstream::read(void* data, int bits, int offset) {
+    quint8* dest = (quint8*)data;
+    while (bits > 0) {
+        if (_position == 0) {
+            _underlying >> _byte;
+        }
+        int bitsToRead = qMin(BITS_IN_BYTE - _position, qMin(BITS_IN_BYTE - offset, bits));
+        *dest |= ((_byte >> _position) & ((1 << bitsToRead) - 1)) << offset;
+        _position = (_position + bitsToRead) & LAST_BIT_POSITION;
+        if ((offset += bitsToRead) == BITS_IN_BYTE) {
+            dest++;
+            offset = 0;
+        }
+        bits -= bitsToRead;
+    }
+    return *this;
+}
+
+void Bitstream::flush() {
+    if (_position != 0) {
+        _underlying << _byte;
+        _byte = 0;
+        _position = 0;
+    }
+}
+
+
+Bitstream& Bitstream::operator<<(bool value) {
+    if (value) {
+        _byte |= (1 << _position);
+    }
+    if (++_position == BITS_IN_BYTE) {
+        flush();
+    }
+    return *this;
+}
+
+Bitstream& Bitstream::operator>>(bool& value) {
+    if (_position == 0) {
+        _underlying >> _byte;
+    }
+    value = _byte & (1 << _position);
+    _position = (_position + 1) & LAST_BIT_POSITION;
+    return *this;
+}
diff --git a/libraries/metavoxels/src/Bitstream.h b/libraries/metavoxels/src/Bitstream.h
new file mode 100644
index 0000000000..12a1b88886
--- /dev/null
+++ b/libraries/metavoxels/src/Bitstream.h
@@ -0,0 +1,45 @@
+//
+//  Bitstream.h
+//  metavoxels
+//
+//  Created by Andrzej Kapolka on 12/2/13.
+//  Copyright (c) 2013 High Fidelity, Inc. All rights reserved.
+//
+
+#ifndef __interface__Bitstream__
+#define __interface__Bitstream__
+
+#include <QtGlobal>
+
+class QDataStream;
+
+/// A stream for bit-aligned data.
+class Bitstream {
+public:
+
+    Bitstream(QDataStream& underlying);
+
+    /// Writes a set of bits to the underlying stream.
+    /// \param bits the number of bits to write
+    /// \param offset the offset of the first bit
+    Bitstream& write(const void* data, int bits, int offset = 0);
+    
+    /// Reads a set of bits from the underlying stream.
+    /// \param bits the number of bits to read
+    /// \param offset the offset of the first bit
+    Bitstream& read(void* data, int bits, int offset = 0);    
+
+    /// Flushes any unwritten bits to the underlying stream.
+    void flush();
+
+    Bitstream& operator<<(bool value);
+    Bitstream& operator>>(bool& value);
+    
+private:
+   
+    QDataStream& _underlying;
+    quint8 _byte;
+    int _position;
+};
+
+#endif /* defined(__interface__Bitstream__) */
diff --git a/libraries/metavoxels/src/MetavoxelData.cpp b/libraries/metavoxels/src/MetavoxelData.cpp
new file mode 100644
index 0000000000..636982b63a
--- /dev/null
+++ b/libraries/metavoxels/src/MetavoxelData.cpp
@@ -0,0 +1,281 @@
+//
+//  MetavoxelData.cpp
+//  metavoxels
+//
+//  Created by Andrzej Kapolka on 12/6/13.
+//  Copyright (c) 2013 High Fidelity, Inc. All rights reserved.
+//
+
+#include <QScriptEngine>
+#include <QtDebug>
+
+#include "MetavoxelData.h"
+
+MetavoxelData::~MetavoxelData() {
+    for (QHash<AttributePointer, MetavoxelNode*>::const_iterator it = _roots.constBegin(); it != _roots.constEnd(); it++) {
+        it.value()->destroy(it.key());
+        delete it.value();
+    }
+}
+
+void MetavoxelData::guide(MetavoxelVisitor& visitor) {
+    // start with the root values/defaults (plus the guide attribute)
+    const float TOP_LEVEL_SIZE = 1.0f;
+    const QVector<AttributePointer>& attributes = visitor.getAttributes();
+    MetavoxelVisitation firstVisitation = { visitor, QVector<MetavoxelNode*>(attributes.size() + 1),
+        { glm::vec3(), TOP_LEVEL_SIZE, QVector<AttributeValue>(attributes.size() + 1) } };
+    for (int i = 0; i < attributes.size(); i++) {
+        MetavoxelNode* node = _roots.value(attributes[i]);
+        firstVisitation.nodes[i] = node;
+        firstVisitation.info.attributeValues[i] = node ? node->getAttributeValue(attributes[i]) : attributes[i];
+    }
+    AttributePointer guideAttribute = AttributeRegistry::getInstance()->getGuideAttribute();
+    MetavoxelNode* node = _roots.value(guideAttribute);
+    firstVisitation.nodes.last() = node;
+    firstVisitation.info.attributeValues.last() = node ? node->getAttributeValue(guideAttribute) : guideAttribute;
+    static_cast<MetavoxelGuide*>(firstVisitation.info.attributeValues.last().getInlineValue<
+        PolymorphicDataPointer>().data())->guide(firstVisitation);
+}
+
+void MetavoxelData::setAttributeValue(const MetavoxelPath& path, const AttributeValue& attributeValue) {
+    MetavoxelNode*& node = _roots[attributeValue.getAttribute()];
+    if (node == NULL) {
+        node = new MetavoxelNode(attributeValue.getAttribute());
+    }
+    if (node->setAttributeValue(path, 0, attributeValue) && attributeValue.isDefault()) {
+        node->destroy(attributeValue.getAttribute());
+        delete node;
+        _roots.remove(attributeValue.getAttribute());
+    }
+}
+
+AttributeValue MetavoxelData::getAttributeValue(const MetavoxelPath& path, const AttributePointer& attribute) const {
+    MetavoxelNode* node = _roots.value(attribute);
+    if (node == NULL) {
+        return AttributeValue(attribute);
+    }
+    for (int i = 0, n = path.getSize(); i < n; i++) {
+        MetavoxelNode* child = node->getChild(path[i]);
+        if (child == NULL) {
+            return node->getAttributeValue(attribute);
+        }
+        node = child;
+    }
+    return node->getAttributeValue(attribute);
+}
+
+MetavoxelNode::MetavoxelNode(const AttributeValue& attributeValue) {
+    _attributeValue = attributeValue.copy();
+    for (int i = 0; i < CHILD_COUNT; i++) {
+        _children[i] = NULL;
+    }
+}
+
+bool MetavoxelNode::setAttributeValue(const MetavoxelPath& path, int index, const AttributeValue& attributeValue) {
+    if (index == path.getSize()) {
+        setAttributeValue(attributeValue);
+        return true;
+    }
+    int element = path[index];
+    if (_children[element] == NULL) {
+        AttributeValue ownAttributeValue = getAttributeValue(attributeValue.getAttribute());
+        for (int i = 0; i < CHILD_COUNT; i++) {
+            _children[i] = new MetavoxelNode(ownAttributeValue);
+        }
+    }
+    _children[element]->setAttributeValue(path, index + 1, attributeValue);
+    
+    void* childValues[CHILD_COUNT];
+    bool allLeaves = true;
+    for (int i = 0; i < CHILD_COUNT; i++) {
+        childValues[i] = _children[i]->_attributeValue;
+        allLeaves &= _children[i]->isLeaf();
+    }
+    if (attributeValue.getAttribute()->merge(_attributeValue, childValues) && allLeaves) {
+        clearChildren(attributeValue.getAttribute());
+        return true;
+    }
+    
+    return false;
+}
+
+void MetavoxelNode::setAttributeValue(const AttributeValue& attributeValue) {
+    attributeValue.getAttribute()->destroy(_attributeValue);
+    _attributeValue = attributeValue.copy();
+    clearChildren(attributeValue.getAttribute());
+}
+
+AttributeValue MetavoxelNode::getAttributeValue(const AttributePointer& attribute) const {
+    return AttributeValue(attribute, _attributeValue);
+}
+
+bool MetavoxelNode::isLeaf() const {
+    for (int i = 0; i < CHILD_COUNT; i++) {
+        if (_children[i]) {
+            return false;
+        }    
+    }
+    return true;
+}
+
+void MetavoxelNode::destroy(const AttributePointer& attribute) {
+    attribute->destroy(_attributeValue);
+    for (int i = 0; i < CHILD_COUNT; i++) {
+        if (_children[i]) {
+            _children[i]->destroy(attribute);
+            delete _children[i];
+        }
+    }
+}
+
+void MetavoxelNode::clearChildren(const AttributePointer& attribute) {
+    for (int i = 0; i < CHILD_COUNT; i++) {
+        if (_children[i]) {
+            _children[i]->destroy(attribute);
+            delete _children[i];
+            _children[i] = NULL;
+        }
+    }
+}
+
+int MetavoxelPath::operator[](int index) const {
+    return _array.at(index * BITS_PER_ELEMENT) | (_array.at(index * BITS_PER_ELEMENT + 1) << 1) |
+        (_array.at(index * BITS_PER_ELEMENT + 2) << 2);
+}
+
+MetavoxelPath& MetavoxelPath::operator+=(int element) {
+    int offset = _array.size();
+    _array.resize(offset + BITS_PER_ELEMENT);
+    _array.setBit(offset, element & 0x01);
+    _array.setBit(offset + 1, (element >> 1) & 0x01);
+    _array.setBit(offset + 2, element >> 2);
+    return *this;
+}
+
+PolymorphicData* DefaultMetavoxelGuide::clone() const {
+    return new DefaultMetavoxelGuide();
+}
+
+const int X_MAXIMUM_FLAG = 1;
+const int Y_MAXIMUM_FLAG = 2;
+const int Z_MAXIMUM_FLAG = 4;
+
+void DefaultMetavoxelGuide::guide(MetavoxelVisitation& visitation) {
+    visitation.info.isLeaf = visitation.allNodesLeaves();
+    if (!visitation.visitor.visit(visitation.info) || visitation.info.isLeaf) {
+        return;
+    }
+    MetavoxelVisitation nextVisitation = { visitation.visitor, QVector<MetavoxelNode*>(visitation.nodes.size()),
+        { glm::vec3(), visitation.info.size * 0.5f, QVector<AttributeValue>(visitation.nodes.size()) } };
+    for (int i = 0; i < MetavoxelNode::CHILD_COUNT; i++) {
+        for (int j = 0; j < visitation.nodes.size(); j++) {
+            MetavoxelNode* node = visitation.nodes.at(j);
+            MetavoxelNode* child = node ? node->getChild(i) : NULL;
+            nextVisitation.info.attributeValues[j] = ((nextVisitation.nodes[j] = child)) ?
+                child->getAttributeValue(visitation.info.attributeValues[j].getAttribute()) :
+                    visitation.info.attributeValues[j];
+        }
+        nextVisitation.info.minimum = visitation.info.minimum + glm::vec3(
+            (i & X_MAXIMUM_FLAG) ? nextVisitation.info.size : 0.0f,
+            (i & Y_MAXIMUM_FLAG) ? nextVisitation.info.size : 0.0f,
+            (i & Z_MAXIMUM_FLAG) ? nextVisitation.info.size : 0.0f);
+        static_cast<MetavoxelGuide*>(nextVisitation.info.attributeValues.last().getInlineValue<
+            PolymorphicDataPointer>().data())->guide(nextVisitation);
+    }
+}
+
+QScriptValue ScriptedMetavoxelGuide::getAttributes(QScriptContext* context, QScriptEngine* engine) {
+    ScriptedMetavoxelGuide* guide = static_cast<ScriptedMetavoxelGuide*>(context->callee().data().toVariant().value<void*>());
+    
+    const QVector<AttributePointer>& attributes = guide->_visitation->visitor.getAttributes();
+    QScriptValue attributesValue = engine->newArray(attributes.size());
+    for (int i = 0; i < attributes.size(); i++) {
+        attributesValue.setProperty(i, engine->newQObject(attributes.at(i).data(), QScriptEngine::QtOwnership,
+            QScriptEngine::PreferExistingWrapperObject));
+    }
+    
+    return attributesValue;
+}
+
+QScriptValue ScriptedMetavoxelGuide::visit(QScriptContext* context, QScriptEngine* engine) {
+    ScriptedMetavoxelGuide* guide = static_cast<ScriptedMetavoxelGuide*>(context->callee().data().toVariant().value<void*>());
+
+    // start with the basics, including inherited attribute values
+    QScriptValue infoValue = context->argument(0);
+    QScriptValue minimum = infoValue.property(guide->_minimumHandle);
+    MetavoxelInfo info = {
+        glm::vec3(minimum.property(0).toNumber(), minimum.property(1).toNumber(), minimum.property(2).toNumber()),
+        infoValue.property(guide->_sizeHandle).toNumber(), guide->_visitation->info.attributeValues,
+        infoValue.property(guide->_isLeafHandle).toBool() };
+    
+    // extract and convert the values provided by the script
+    QScriptValue attributeValues = infoValue.property(guide->_attributeValuesHandle);
+    const QVector<AttributePointer>& attributes = guide->_visitation->visitor.getAttributes();
+    for (int i = 0; i < attributes.size(); i++) {
+        QScriptValue attributeValue = attributeValues.property(i);
+        if (attributeValue.isValid()) {
+            info.attributeValues[i] = AttributeValue(attributes.at(i),
+                attributes.at(i)->createFromScript(attributeValue, engine));
+        }
+    }
+    
+    QScriptValue result = guide->_visitation->visitor.visit(info);
+    
+    // destroy any created values
+    for (int i = 0; i < attributes.size(); i++) {
+        if (attributeValues.property(i).isValid()) {
+            info.attributeValues[i].getAttribute()->destroy(info.attributeValues[i].getValue());
+        }
+    }
+    
+    return result;
+}
+
+ScriptedMetavoxelGuide::ScriptedMetavoxelGuide(const QScriptValue& guideFunction) :
+    _guideFunction(guideFunction),
+    _minimumHandle(guideFunction.engine()->toStringHandle("minimum")),
+    _sizeHandle(guideFunction.engine()->toStringHandle("size")),
+    _attributeValuesHandle(guideFunction.engine()->toStringHandle("attributeValues")),
+    _isLeafHandle(guideFunction.engine()->toStringHandle("isLeaf")),
+    _getAttributesFunction(guideFunction.engine()->newFunction(getAttributes, 0)),
+    _visitFunction(guideFunction.engine()->newFunction(visit, 1)),
+    _info(guideFunction.engine()->newObject()),
+    _minimum(guideFunction.engine()->newArray(3)) {
+    
+    _arguments.append(guideFunction.engine()->newObject());
+    QScriptValue visitor = guideFunction.engine()->newObject();
+    visitor.setProperty("getAttributes", _getAttributesFunction);
+    visitor.setProperty("visit", _visitFunction);
+    _arguments[0].setProperty("visitor", visitor);
+    _arguments[0].setProperty("info", _info);
+    _info.setProperty(_minimumHandle, _minimum);
+}
+
+PolymorphicData* ScriptedMetavoxelGuide::clone() const {
+    return new ScriptedMetavoxelGuide(_guideFunction);
+}
+
+void ScriptedMetavoxelGuide::guide(MetavoxelVisitation& visitation) {
+    QScriptValue data = _guideFunction.engine()->newVariant(QVariant::fromValue<void*>(this));
+    _getAttributesFunction.setData(data);
+    _visitFunction.setData(data);
+    _minimum.setProperty(0, visitation.info.minimum.x);
+    _minimum.setProperty(1, visitation.info.minimum.y);
+    _minimum.setProperty(2, visitation.info.minimum.z);
+    _info.setProperty(_sizeHandle, visitation.info.size);
+    _info.setProperty(_isLeafHandle, visitation.info.isLeaf);
+    _visitation = &visitation;
+    _guideFunction.call(QScriptValue(), _arguments);
+    if (_guideFunction.engine()->hasUncaughtException()) {
+        qDebug() << "Script error: " << _guideFunction.engine()->uncaughtException().toString() << "\n";
+    }
+}
+
+bool MetavoxelVisitation::allNodesLeaves() const {
+    foreach (MetavoxelNode* node, nodes) {
+        if (node != NULL && !node->isLeaf()) {
+            return false;
+        }
+    }
+    return true;
+}
diff --git a/libraries/metavoxels/src/MetavoxelData.h b/libraries/metavoxels/src/MetavoxelData.h
new file mode 100644
index 0000000000..fc7045cff4
--- /dev/null
+++ b/libraries/metavoxels/src/MetavoxelData.h
@@ -0,0 +1,187 @@
+//
+//  MetavoxelData.h
+//  metavoxels
+//
+//  Created by Andrzej Kapolka on 12/6/13.
+//  Copyright (c) 2013 High Fidelity, Inc. All rights reserved.
+//
+
+#ifndef __interface__MetavoxelData__
+#define __interface__MetavoxelData__
+
+#include <QBitArray>
+#include <QHash>
+#include <QScriptString>
+#include <QScriptValue>
+#include <QVector>
+
+#include <glm/glm.hpp>
+
+#include "AttributeRegistry.h"
+
+class QScriptContext;
+
+class MetavoxelNode;
+class MetavoxelPath;
+class MetavoxelVisitation;
+class MetavoxelVisitor;
+
+/// The base metavoxel representation shared between server and client.
+class MetavoxelData {
+public:
+
+    ~MetavoxelData();
+
+    /// Applies the specified visitor to the contained voxels.
+    void guide(MetavoxelVisitor& visitor);
+
+    /// Sets the attribute value corresponding to the specified path.
+    void setAttributeValue(const MetavoxelPath& path, const AttributeValue& attributeValue);
+
+    /// Retrieves the attribute value corresponding to the specified path.
+    AttributeValue getAttributeValue(const MetavoxelPath& path, const AttributePointer& attribute) const;
+
+private:
+   
+    QHash<AttributePointer, MetavoxelNode*> _roots;
+};
+
+/// A single node within a metavoxel layer.
+class MetavoxelNode {
+public:
+
+    static const int CHILD_COUNT = 8;
+
+    MetavoxelNode(const AttributeValue& attributeValue);
+
+    /// Descends the voxel tree in order to set the value of a node.
+    /// \param path the path to follow
+    /// \param index the position in the path
+    /// \return whether or not the node is entirely equal to the value
+    bool setAttributeValue(const MetavoxelPath& path, int index, const AttributeValue& attributeValue);
+
+    void setAttributeValue(const AttributeValue& attributeValue);
+
+    AttributeValue getAttributeValue(const AttributePointer& attribute) const;
+
+    MetavoxelNode* getChild(int index) const { return _children[index]; }
+    void setChild(int index, MetavoxelNode* child) { _children[index] = child; }
+
+    bool isLeaf() const;
+
+    void destroy(const AttributePointer& attribute);
+
+private:
+    Q_DISABLE_COPY(MetavoxelNode)
+    
+    void clearChildren(const AttributePointer& attribute);
+    
+    void* _attributeValue;
+    MetavoxelNode* _children[CHILD_COUNT];
+};
+
+/// A path down an octree.
+class MetavoxelPath {
+public:
+    
+    int getSize() const { return _array.size() / BITS_PER_ELEMENT; }
+    bool isEmpty() const { return _array.isEmpty(); }
+    
+    int operator[](int index) const;
+    
+    MetavoxelPath& operator+=(int element);
+    
+private:
+    
+    static const int BITS_PER_ELEMENT = 3;
+    
+    QBitArray _array;    
+};
+
+/// Contains information about a metavoxel (explicit or procedural).
+class MetavoxelInfo {
+public:
+    
+    glm::vec3 minimum; ///< the minimum extent of the area covered by the voxel
+    float size; ///< the size of the voxel in all dimensions
+    QVector<AttributeValue> attributeValues;
+    bool isLeaf;
+};
+
+/// Interface for visitors to metavoxels.
+class MetavoxelVisitor {
+public:
+    
+    MetavoxelVisitor(const QVector<AttributePointer>& attributes) : _attributes(attributes) { }
+        
+    /// Returns a reference to the list of attributes desired.
+    const QVector<AttributePointer>& getAttributes() const { return _attributes; }
+    
+    /// Visits a metavoxel.
+    /// \param info the metavoxel ata
+    /// \param if true, continue descending; if false, stop
+    virtual bool visit(const MetavoxelInfo& info) = 0;
+
+protected:
+
+    QVector<AttributePointer> _attributes;
+};
+
+/// Interface for objects that guide metavoxel visitors.
+class MetavoxelGuide : public PolymorphicData {
+public:
+    
+    /// Guides the specified visitor to the contained voxels.
+    virtual void guide(MetavoxelVisitation& visitation) = 0;
+};
+
+/// Guides visitors through the explicit content of the system.
+class DefaultMetavoxelGuide : public MetavoxelGuide {
+public:
+    
+    virtual PolymorphicData* clone() const;
+    
+    virtual void guide(MetavoxelVisitation& visitation);
+};
+
+/// Represents a guide implemented in Javascript.
+class ScriptedMetavoxelGuide : public MetavoxelGuide {
+public:
+
+    ScriptedMetavoxelGuide(const QScriptValue& guideFunction);
+
+    virtual PolymorphicData* clone() const;
+    
+    virtual void guide(MetavoxelVisitation& visitation);
+
+private:
+
+    static QScriptValue getAttributes(QScriptContext* context, QScriptEngine* engine);
+    static QScriptValue visit(QScriptContext* context, QScriptEngine* engine);
+
+    QScriptValue _guideFunction;
+    QScriptString _minimumHandle;
+    QScriptString _sizeHandle;
+    QScriptString _attributeValuesHandle;
+    QScriptString _isLeafHandle;
+    QScriptValueList _arguments;
+    QScriptValue _getAttributesFunction;
+    QScriptValue _visitFunction;
+    QScriptValue _info;
+    QScriptValue _minimum;
+    
+    MetavoxelVisitation* _visitation;
+};
+
+/// Contains the state associated with a visit to a metavoxel system.
+class MetavoxelVisitation {
+public:
+
+    MetavoxelVisitor& visitor;
+    QVector<MetavoxelNode*> nodes;
+    MetavoxelInfo info;
+    
+    bool allNodesLeaves() const;
+};
+
+#endif /* defined(__interface__MetavoxelData__) */
diff --git a/libraries/octree-server/src/OctreeServer.cpp b/libraries/octree-server/src/OctreeServer.cpp
index ffb5f9c976..a8010cefaf 100644
--- a/libraries/octree-server/src/OctreeServer.cpp
+++ b/libraries/octree-server/src/OctreeServer.cpp
@@ -656,6 +656,17 @@ void OctreeServer::run() {
             _persistThread->initialize(true);
         }
     }
+    
+    // Debug option to demonstrate that the server's local time does not 
+    // need to be in sync with any other network node. This forces clock 
+    // skew for the individual server node
+    const char* CLOCK_SKEW = "--clockSkew";
+    const char* clockSkewOption = getCmdOption(_argc, _argv, CLOCK_SKEW);
+    if (clockSkewOption) {
+        int clockSkew = atoi(clockSkewOption);
+        usecTimestampNowForceClockSkew(clockSkew);
+        qDebug("clockSkewOption=%s clockSkew=%d\n", clockSkewOption, clockSkew);
+    }
 
     // Check to see if the user passed in a command line option for setting packet send rate
     const char* PACKETS_PER_SECOND = "--packetsPerSecond";
diff --git a/libraries/particles/src/Particle.cpp b/libraries/particles/src/Particle.cpp
index fb5d603d7d..ec0783d0d9 100644
--- a/libraries/particles/src/Particle.cpp
+++ b/libraries/particles/src/Particle.cpp
@@ -36,15 +36,16 @@ Particle::~Particle() {
 void Particle::init(glm::vec3 position, float radius, rgbColor color, glm::vec3 velocity, glm::vec3 gravity, 
                     float damping, bool inHand, QString updateScript, uint32_t id) {
     if (id == NEW_PARTICLE) {
-        _created = usecTimestampNow();
         _id = _nextID;
         _nextID++;
     } else {
         _id = id;
     }
-    _lastUpdated = usecTimestampNow();
-    _lastEdited = _lastUpdated;
-
+    uint64_t now = usecTimestampNow();
+    _edited = now;
+    _lastSimulated = now;
+    _created = now; // will get updated as appropriate in setLifetime()
+    
     _position = position;
     _radius = radius;
     memcpy(_color, color, sizeof(_color));
@@ -63,13 +64,10 @@ bool Particle::appendParticleData(OctreePacketData* packetData) const {
     //printf("Particle::appendParticleData()... getID()=%d\n", getID());
 
     if (success) {
-        success = packetData->appendValue(getCreated());
+        success = packetData->appendValue(getLifetime());
     }
     if (success) {
-        success = packetData->appendValue(getLastUpdated());
-    }
-    if (success) {
-        success = packetData->appendValue(getLastEdited());
+        success = packetData->appendValue(getEditedAgo());
     }
     if (success) {
         success = packetData->appendValue(getRadius());
@@ -103,9 +101,30 @@ bool Particle::appendParticleData(OctreePacketData* packetData) const {
 }
 
 int Particle::expectedBytes() {
-    int expectedBytes = sizeof(uint32_t) + sizeof(uint64_t) + sizeof(uint64_t) + sizeof(uint64_t) + sizeof(float) + 
-                        sizeof(glm::vec3) + sizeof(rgbColor) + sizeof(glm::vec3) +
-                        sizeof(glm::vec3) + sizeof(float) + sizeof(bool);
+    int expectedBytes = sizeof(uint32_t) // id
+                + sizeof(float) // lifetime
+                + sizeof(float) // edited ago
+                + sizeof(float) // radius
+                + sizeof(glm::vec3) // position
+                + sizeof(rgbColor) // color
+                + sizeof(glm::vec3) // velocity
+                + sizeof(glm::vec3) // gravity
+                + sizeof(float) // damping
+                + sizeof(bool); // inhand
+                // potentially more...
+    return expectedBytes;
+}
+
+int Particle::expectedEditMessageBytes() {
+    int expectedBytes = sizeof(uint32_t) // id
+                + sizeof(float) // radius
+                + sizeof(glm::vec3) // position
+                + sizeof(rgbColor) // color
+                + sizeof(glm::vec3) // velocity
+                + sizeof(glm::vec3) // gravity
+                + sizeof(float) // damping
+                + sizeof(bool); // inhand
+                // potentially more...
     return expectedBytes;
 }
 
@@ -119,20 +138,19 @@ int Particle::readParticleDataFromBuffer(const unsigned char* data, int bytesLef
         dataAt += sizeof(_id);
         bytesRead += sizeof(_id);
 
-        // created
-        memcpy(&_created, dataAt, sizeof(_created));
-        dataAt += sizeof(_created);
-        bytesRead += sizeof(_created);
+        // lifetime
+        float lifetime;
+        memcpy(&lifetime, dataAt, sizeof(lifetime));
+        dataAt += sizeof(lifetime);
+        bytesRead += sizeof(lifetime);
+        setLifetime(lifetime);
 
-        // lastupdated
-        memcpy(&_lastUpdated, dataAt, sizeof(_lastUpdated));
-        dataAt += sizeof(_lastUpdated);
-        bytesRead += sizeof(_lastUpdated);
-
-        // _lastEdited
-        memcpy(&_lastEdited, dataAt, sizeof(_lastEdited));
-        dataAt += sizeof(_lastEdited);
-        bytesRead += sizeof(_lastEdited);
+        // edited ago
+        float editedAgo;
+        memcpy(&editedAgo, dataAt, sizeof(editedAgo));
+        dataAt += sizeof(editedAgo);
+        bytesRead += sizeof(editedAgo);
+        setEditedAgo(editedAgo);
 
         // radius
         memcpy(&_radius, dataAt, sizeof(_radius));
@@ -186,7 +204,7 @@ int Particle::readParticleDataFromBuffer(const unsigned char* data, int bytesLef
 
 
 Particle Particle::fromEditPacket(unsigned char* data, int length, int& processedBytes) {
-    Particle newParticle; // id and lastUpdated will get set here...
+    Particle newParticle; // id and _lastSimulated will get set here...
     unsigned char* dataAt = data;
     processedBytes = 0;
 
@@ -214,26 +232,17 @@ Particle Particle::fromEditPacket(unsigned char* data, int length, int& processe
         processedBytes += sizeof(creatorTokenID);
         newParticle.setCreatorTokenID(creatorTokenID);
         newParticle._newlyCreated = true;
+        
+        newParticle.setLifetime(0); // this guy is new!
+
     } else {
         newParticle._id = editID;
         newParticle._newlyCreated = false;
     } 
 
-    // created
-    memcpy(&newParticle._created, dataAt, sizeof(newParticle._created));
-    dataAt += sizeof(newParticle._created);
-    processedBytes += sizeof(newParticle._created);
-
-    // lastUpdated
-    memcpy(&newParticle._lastUpdated, dataAt, sizeof(newParticle._lastUpdated));
-    dataAt += sizeof(newParticle._lastUpdated);
-    processedBytes += sizeof(newParticle._lastUpdated);
-
-    // lastEdited
-    memcpy(&newParticle._lastEdited, dataAt, sizeof(newParticle._lastEdited));
-    dataAt += sizeof(newParticle._lastEdited);
-    processedBytes += sizeof(newParticle._lastEdited);
-    
+    // clearly we just edited it
+    newParticle.setEditedAgo(0);
+        
     // radius
     memcpy(&newParticle._radius, dataAt, sizeof(newParticle._radius));
     dataAt += sizeof(newParticle._radius);
@@ -291,9 +300,8 @@ Particle Particle::fromEditPacket(unsigned char* data, int length, int& processe
 
 void Particle::debugDump() const {
     printf("Particle id  :%u\n", _id);
-    printf(" created:%llu\n", _created);
-    printf(" last updated:%llu\n", _lastUpdated);
-    printf(" last edited:%llu\n", _lastEdited);
+    printf(" lifetime:%f\n", getLifetime());
+    printf(" edited ago:%f\n", getEditedAgo());
     printf(" position:%f,%f,%f\n", _position.x, _position.y, _position.z);
     printf(" velocity:%f,%f,%f\n", _velocity.x, _velocity.y, _velocity.z);
     printf(" gravity:%f,%f,%f\n", _gravity.x, _gravity.y, _gravity.z);
@@ -313,7 +321,7 @@ bool Particle::encodeParticleEditMessageDetails(PACKET_TYPE command, int count,
 
         int octets = numberOfThreeBitSectionsInCode(octcode);
         int lengthOfOctcode = bytesRequiredForCodeLength(octets);
-        int lenfthOfEditData = lengthOfOctcode + expectedBytes();
+        int lenfthOfEditData = lengthOfOctcode + expectedEditMessageBytes();
         
         // make sure we have room to copy this particle
         if (sizeOut + lenfthOfEditData > sizeIn) {
@@ -325,7 +333,6 @@ bool Particle::encodeParticleEditMessageDetails(PACKET_TYPE command, int count,
             sizeOut += lengthOfOctcode;
             
             // Now add our edit content details...
-            uint64_t created = usecTimestampNow();
             
             // id
             memcpy(copyAt, &details[i].id, sizeof(details[i].id));
@@ -338,25 +345,8 @@ bool Particle::encodeParticleEditMessageDetails(PACKET_TYPE command, int count,
                 memcpy(copyAt, &details[i].creatorTokenID, sizeof(details[i].creatorTokenID));
                 copyAt += sizeof(details[i].creatorTokenID);
                 sizeOut += sizeof(details[i].creatorTokenID);
-            } else {
-                created = 0;
             }
 
-            // created
-            memcpy(copyAt, &created, sizeof(created));
-            copyAt += sizeof(created);
-            sizeOut += sizeof(created);
-            
-            // lastUpdated
-            memcpy(copyAt, &details[i].lastUpdated, sizeof(details[i].lastUpdated));
-            copyAt += sizeof(details[i].lastUpdated);
-            sizeOut += sizeof(details[i].lastUpdated);
-            
-            // lastEdited
-            memcpy(copyAt, &details[i].lastEdited, sizeof(details[i].lastEdited));
-            copyAt += sizeof(details[i].lastEdited);
-            sizeOut += sizeof(details[i].lastEdited);
-            
             // radius
             memcpy(copyAt, &details[i].radius, sizeof(details[i].radius));
             copyAt += sizeof(details[i].radius);
@@ -405,7 +395,6 @@ bool Particle::encodeParticleEditMessageDetails(PACKET_TYPE command, int count,
             if (wantDebugging) {            
                 printf("encodeParticleEditMessageDetails()....\n");
                 printf("Particle id  :%u\n", details[i].id);
-                printf(" last updated:%llu\n", details[i].lastUpdated);
                 printf(" nextID:%u\n", _nextID);
             }
         }
@@ -418,21 +407,30 @@ bool Particle::encodeParticleEditMessageDetails(PACKET_TYPE command, int count,
 
 
 void Particle::update() {
+
     uint64_t now = usecTimestampNow();
-    uint64_t elapsed = now - _lastUpdated;
-    uint64_t USECS_PER_SECOND = 1000 * 1000;
+    uint64_t elapsed = now - _lastSimulated;
     float timeElapsed = (float)((float)elapsed/(float)USECS_PER_SECOND);
     
+    
     // calculate our default shouldDie state... then allow script to change it if it wants...
     float velocityScalar = glm::length(getVelocity());
     const float STILL_MOVING = 0.05 / TREE_SCALE;
     bool isStillMoving = (velocityScalar > STILL_MOVING);
-    const uint64_t REALLY_OLD = 30 * 1000 * 1000;
+    const float REALLY_OLD = 30.0f; // 30 seconds
     bool isReallyOld = (getLifetime() > REALLY_OLD);
     bool isInHand = getInHand();
     bool shouldDie = !isInHand && !isStillMoving && isReallyOld;
     setShouldDie(shouldDie);
-
+    
+    bool wantDebug = false;
+    if (wantDebug) {
+        printf("Particle::update()... timeElapsed: %f lifeTime:%f editedAgo:%f "
+            "isInHand:%s isStillMoveing:%s isReallyOld:%s shouldDie:%s\n", 
+            timeElapsed, getLifetime(), getEditedAgo(), debug::valueOf(isInHand), debug::valueOf(isStillMoving), 
+            debug::valueOf(isReallyOld), debug::valueOf(shouldDie));
+    }
+        
     runScript(); // allow the javascript to alter our state
     
     // If the ball is in hand, it doesn't move or have gravity effect it
@@ -454,7 +452,7 @@ void Particle::update() {
         //printf("applying damping to Particle timeElapsed=%f\n",timeElapsed);
     }
     
-    _lastUpdated = now;
+    _lastSimulated = now;
 }
 
 void Particle::runScript() {
@@ -484,3 +482,19 @@ void Particle::runScript() {
         }
     }
 }
+
+void Particle::setLifetime(float lifetime) {
+    uint64_t lifetimeInUsecs = lifetime * USECS_PER_SECOND;
+    _created = usecTimestampNow() - lifetimeInUsecs; 
+}
+
+void Particle::setEditedAgo(float editedAgo) {
+    uint64_t editedAgoInUsecs = editedAgo * USECS_PER_SECOND;
+    _edited = usecTimestampNow() - editedAgoInUsecs; 
+}
+
+void Particle::copyChangedProperties(const Particle& other) {
+    float lifetime = getLifetime();
+    *this = other;
+    setLifetime(lifetime);
+}
diff --git a/libraries/particles/src/Particle.h b/libraries/particles/src/Particle.h
index 33e8960670..5090828724 100644
--- a/libraries/particles/src/Particle.h
+++ b/libraries/particles/src/Particle.h
@@ -25,8 +25,6 @@ const uint32_t UNKNOWN_TOKEN = 0xFFFFFFFF;
 class ParticleDetail {
 public:
     uint32_t id;
-    uint64_t lastUpdated;
-    uint64_t lastEdited;
     glm::vec3 position;
     float radius;
     rgbColor color;
@@ -68,10 +66,11 @@ public:
     const glm::vec3& getGravity() const { return _gravity; }
     bool getInHand() const { return _inHand; }
     float getDamping() const { return _damping; }
-    uint64_t getCreated() const { return _created; }
-    uint64_t getLifetime() const { return usecTimestampNow() - _created; }
-    uint64_t getLastUpdated() const { return _lastUpdated; }
-    uint64_t getLastEdited() const { return _lastEdited; }
+
+    /// lifetime of the particle in seconds
+    float getLifetime() const { return (float)(usecTimestampNow() - _created) / (float)USECS_PER_SECOND; }
+    /// seconds since last edited
+    float getEditedAgo() const { return (float)(usecTimestampNow() - _edited) / (float)USECS_PER_SECOND; }
     uint32_t getID() const { return _id; }
     bool getShouldDie() const { return _shouldDie; }
     QString getUpdateScript() const { return _updateScript; }
@@ -93,11 +92,11 @@ public:
     void setShouldDie(bool shouldDie) { _shouldDie = shouldDie; }
     void setUpdateScript(QString updateScript) { _updateScript = updateScript; }
     void setCreatorTokenID(uint32_t creatorTokenID) { _creatorTokenID = creatorTokenID; }
-    void setCreated(uint64_t created) { _created = created; }
     
     bool appendParticleData(OctreePacketData* packetData) const;
     int readParticleDataFromBuffer(const unsigned char* data, int bytesLeftToRead, ReadBitstreamToTreeParams& args);
     static int expectedBytes();
+    static int expectedEditMessageBytes();
 
     static bool encodeParticleEditMessageDetails(PACKET_TYPE command, int count, const ParticleDetail* details, 
                         unsigned char* bufferOut, int sizeIn, int& sizeOut);
@@ -105,20 +104,24 @@ public:
     void update();
 
     void debugDump() const;
+    
+    // similar to assignment/copy, but it handles keeping lifetime accurate
+    void copyChangedProperties(const Particle& other);
+    
 protected:
     void runScript();
     static QScriptValue vec3toScriptValue(QScriptEngine *engine, const glm::vec3 &vec3);
     static void vec3FromScriptValue(const QScriptValue &object, glm::vec3 &vec3);
     static QScriptValue xColorToScriptValue(QScriptEngine *engine, const xColor& color);
     static void xColorFromScriptValue(const QScriptValue &object, xColor& color);
+
+    void setLifetime(float lifetime);    
+    void setEditedAgo(float editedAgo);    
     
     glm::vec3 _position;
     rgbColor _color;
     float _radius;
     glm::vec3 _velocity;
-    uint64_t _lastUpdated;
-    uint64_t _created;
-    uint64_t _lastEdited;
     uint32_t _id;
     static uint32_t _nextID;
     bool _shouldDie;
@@ -129,6 +132,12 @@ protected:
 
     uint32_t _creatorTokenID;
     bool _newlyCreated;
+
+    // these are never included in wire time    
+    uint64_t _lastSimulated;
+    uint64_t _created;
+    uint64_t _edited;
+    
 };
 
 class ParticleScriptObject  : public QObject {
@@ -144,9 +153,7 @@ public slots:
     float getDamping() const { return _particle->getDamping(); }
     float getRadius() const { return _particle->getRadius(); }
     bool getShouldDie() { return _particle->getShouldDie(); }
-    float getCreated() const { return ((float)_particle->getCreated() / (float)USECS_PER_SECOND); }
-    float getLifetime() const { return ((float)_particle->getLifetime() / (float)USECS_PER_SECOND); }
-    
+    float getLifetime() const { return _particle->getLifetime(); }
     
     void setPosition(glm::vec3 value) { _particle->setPosition(value); }
     void setVelocity(glm::vec3 value) { _particle->setVelocity(value); }
diff --git a/libraries/particles/src/ParticleCollisionSystem.cpp b/libraries/particles/src/ParticleCollisionSystem.cpp
index 1a21d1231e..8281deb12d 100644
--- a/libraries/particles/src/ParticleCollisionSystem.cpp
+++ b/libraries/particles/src/ParticleCollisionSystem.cpp
@@ -206,7 +206,7 @@ void ParticleCollisionSystem::applyHardCollision(Particle* particle, const glm::
 void ParticleCollisionSystem::updateCollisionSound(Particle* particle, const glm::vec3 &penetration, float frequency) {
                                 
     //  consider whether to have the collision make a sound
-    const float AUDIBLE_COLLISION_THRESHOLD = 0.02f;
+    const float AUDIBLE_COLLISION_THRESHOLD = 0.1f;
     const float COLLISION_LOUDNESS = 1.f;
     const float DURATION_SCALING = 0.004f;
     const float NOISE_SCALING = 0.1f;
@@ -235,6 +235,6 @@ void ParticleCollisionSystem::updateCollisionSound(Particle* particle, const glm
                     fmin(COLLISION_LOUDNESS * velocityTowardCollision, 1.f),
                     frequency * (1.f + velocityTangentToCollision / velocityTowardCollision),
                     fmin(velocityTangentToCollision / velocityTowardCollision * NOISE_SCALING, 1.f),
-                    1.f - DURATION_SCALING * powf(frequency, 0.5f) / velocityTowardCollision, true);
+                    1.f - DURATION_SCALING * powf(frequency, 0.5f) / velocityTowardCollision, false);
     }
 }
\ No newline at end of file
diff --git a/libraries/particles/src/ParticleEditHandle.cpp b/libraries/particles/src/ParticleEditHandle.cpp
index 28356ce63e..d8466816c4 100644
--- a/libraries/particles/src/ParticleEditHandle.cpp
+++ b/libraries/particles/src/ParticleEditHandle.cpp
@@ -44,8 +44,7 @@ void ParticleEditHandle::createParticle(glm::vec3 position, float radius, xColor
                            glm::vec3 gravity, float damping, bool inHand, QString updateScript) {
 
     // setup a ParticleDetail struct with the data
-    uint64_t now = usecTimestampNow();
-    ParticleDetail addParticleDetail = { NEW_PARTICLE, now, now,
+    ParticleDetail addParticleDetail = { NEW_PARTICLE,
             position, radius, {color.red, color.green, color.blue }, 
             velocity, gravity, damping, inHand, updateScript, _creatorTokenID };
     
@@ -70,8 +69,7 @@ bool ParticleEditHandle::updateParticle(glm::vec3 position, float radius, xColor
     }
     
     // setup a ParticleDetail struct with the data
-    uint64_t now = usecTimestampNow();
-    ParticleDetail newParticleDetail = { _id, now, now,
+    ParticleDetail newParticleDetail = { _id,
             position, radius, {color.red, color.green, color.blue }, 
             velocity, gravity, damping, inHand, updateScript, _creatorTokenID };
 
diff --git a/libraries/particles/src/ParticleScriptingInterface.cpp b/libraries/particles/src/ParticleScriptingInterface.cpp
index ec8209208c..758b50035d 100644
--- a/libraries/particles/src/ParticleScriptingInterface.cpp
+++ b/libraries/particles/src/ParticleScriptingInterface.cpp
@@ -22,8 +22,7 @@ unsigned int ParticleScriptingInterface::queueParticleAdd(glm::vec3 position, fl
     _nextCreatorTokenID++;
                                                     
     // setup a ParticleDetail struct with the data
-    uint64_t now = usecTimestampNow();
-    ParticleDetail addParticleDetail = { NEW_PARTICLE, now, now,
+    ParticleDetail addParticleDetail = { NEW_PARTICLE,
                                         position, radius, {color.red, color.green, color.blue }, velocity, 
                                         gravity, damping, inHand, updateScript, creatorTokenID };
     
diff --git a/libraries/particles/src/ParticleTreeElement.cpp b/libraries/particles/src/ParticleTreeElement.cpp
index a631eae926..b142c1f568 100644
--- a/libraries/particles/src/ParticleTreeElement.cpp
+++ b/libraries/particles/src/ParticleTreeElement.cpp
@@ -119,33 +119,19 @@ bool ParticleTreeElement::updateParticle(const Particle& particle) {
     uint16_t numberOfParticles = _particles.size();
     for (uint16_t i = 0; i < numberOfParticles; i++) {
         if (_particles[i].getID() == particle.getID()) {
-            int difference = _particles[i].getLastUpdated() - particle.getLastUpdated();
-            
-            bool changedOnServer = _particles[i].getLastEdited() < particle.getLastEdited();
-            bool localOlder = _particles[i].getLastUpdated() < particle.getLastUpdated();
-            
-            if (changedOnServer || localOlder) {
-
+            bool changedOnServer = _particles[i].getEditedAgo() > particle.getEditedAgo();
+            if (changedOnServer) {
                 if (wantDebug) {
-                    printf("local particle [id:%d] %s and %s than server particle by %d, particle.isNewlyCreated()=%s\n", 
+                    printf("local particle [id:%d] %s, particle.isNewlyCreated()=%s\n", 
                                 particle.getID(), (changedOnServer ? "CHANGED" : "same"),
-                                (localOlder ? "OLDER" : "NEWER"),               
-                                difference, debug::valueOf(particle.isNewlyCreated()) );
+                                debug::valueOf(particle.isNewlyCreated()) );
                 }
-
-                uint64_t actuallyCreated = particle.getCreated();
-                if (!particle.isNewlyCreated()) {
-                    actuallyCreated = _particles[i].getCreated();
-                }
-                _particles[i] = particle;
-                _particles[i].setCreated(actuallyCreated);
+                _particles[i].copyChangedProperties(particle);
             } else {
                 if (wantDebug) {
-                    printf(">>> NO CHANGE <<< -- local particle [id:%d] %s and %s than server particle by %d, "
-                                "particle.isNewlyCreated()=%s\n", 
+                    printf(">>> NO CHANGE <<< -- local particle [id:%d] %s particle.isNewlyCreated()=%s\n", 
                                 particle.getID(), (changedOnServer ? "CHANGED" : "same"),
-                                (localOlder ? "OLDER" : "NEWER"),               
-                                difference, debug::valueOf(particle.isNewlyCreated()) );
+                                debug::valueOf(particle.isNewlyCreated()) );
                 }
             }
             return true;
diff --git a/libraries/scriptengine/CMakeLists.txt b/libraries/script-engine/CMakeLists.txt
similarity index 96%
rename from libraries/scriptengine/CMakeLists.txt
rename to libraries/script-engine/CMakeLists.txt
index 593feab014..59f41b8cbe 100644
--- a/libraries/scriptengine/CMakeLists.txt
+++ b/libraries/script-engine/CMakeLists.txt
@@ -6,7 +6,7 @@ set(MACRO_DIR ${ROOT_DIR}/cmake/macros)
 # setup for find modules
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/modules/")
 
-set(TARGET_NAME scriptengine)
+set(TARGET_NAME script-engine)
 
 find_package(Qt5Widgets REQUIRED)
 
diff --git a/libraries/script-engine/src/AbstractControllerScriptingInterface.h b/libraries/script-engine/src/AbstractControllerScriptingInterface.h
new file mode 100644
index 0000000000..5c791af0a4
--- /dev/null
+++ b/libraries/script-engine/src/AbstractControllerScriptingInterface.h
@@ -0,0 +1,38 @@
+//
+//  AbstractControllerScriptingInterface.h
+//  hifi
+//
+//  Created by Brad Hefta-Gaub on 12/17/13
+//  Copyright (c) 2013 HighFidelity, Inc. All rights reserved.
+//
+
+#ifndef __hifi__AbstractControllerScriptingInterface__
+#define __hifi__AbstractControllerScriptingInterface__
+
+#include <QtCore/QObject>
+#include <glm/glm.hpp>
+
+/// handles scripting of input controller commands from JS
+class AbstractControllerScriptingInterface : public QObject {
+    Q_OBJECT
+
+public slots:
+    virtual bool isPrimaryButtonPressed() const = 0;
+    virtual glm::vec2 getPrimaryJoystickPosition() const = 0;
+
+    virtual int getNumberOfButtons() const = 0;
+    virtual bool isButtonPressed(int buttonIndex) const = 0;
+
+    virtual int getNumberOfTriggers() const = 0;
+    virtual float getTriggerValue(int triggerIndex) const = 0;
+
+    virtual int getNumberOfJoysticks() const = 0;
+    virtual glm::vec2 getJoystickPosition(int joystickIndex) const = 0;
+
+    virtual int getNumberOfSpatialControls() const = 0;
+    virtual glm::vec3 getSpatialControlPosition(int controlIndex) const = 0;
+    virtual glm::vec3 getSpatialControlVelocity(int controlIndex) const = 0;
+    virtual glm::vec3 getSpatialControlNormal(int controlIndex) const = 0;
+};
+
+#endif /* defined(__hifi__AbstractControllerScriptingInterface__) */
diff --git a/libraries/scriptengine/src/ScriptEngine.cpp b/libraries/script-engine/src/ScriptEngine.cpp
similarity index 81%
rename from libraries/scriptengine/src/ScriptEngine.cpp
rename to libraries/script-engine/src/ScriptEngine.cpp
index 7e5f414dee..24c4fcf1d9 100644
--- a/libraries/scriptengine/src/ScriptEngine.cpp
+++ b/libraries/script-engine/src/ScriptEngine.cpp
@@ -24,10 +24,14 @@
 
 int ScriptEngine::_scriptNumber = 1;
 
-ScriptEngine::ScriptEngine(QString scriptContents, bool wantMenuItems, 
-                                const char* scriptMenuName, AbstractMenuInterface* menu) {
+ScriptEngine::ScriptEngine(const QString& scriptContents, bool wantMenuItems,
+                                const char* scriptMenuName, AbstractMenuInterface* menu,
+                                AbstractControllerScriptingInterface* controllerScriptingInterface) {
     _scriptContents = scriptContents;
     _isFinished = false;
+    _isRunning = false;
+    
+    // some clients will use these menu features
     _wantMenuItems = wantMenuItems;
     if (scriptMenuName) {
         _scriptMenuName = "Stop ";
@@ -38,6 +42,7 @@ ScriptEngine::ScriptEngine(QString scriptContents, bool wantMenuItems,
         _scriptMenuName.append(_scriptNumber);
     }
     _menu = menu;
+    _controllerScriptingInterface = controllerScriptingInterface;
 }
 
 ScriptEngine::~ScriptEngine() {
@@ -57,10 +62,16 @@ void ScriptEngine::cleanMenuItems() {
     }
 }
 
-void ScriptEngine::run() {
+bool ScriptEngine::setScriptContents(const QString& scriptContents) {
+    if (_isRunning) {
+        return false;
+    }
+    _scriptContents = scriptContents;
+    return true;
+}
 
-    //setupMenuItems();
-    
+void ScriptEngine::run() {
+    _isRunning = true;
     QScriptEngine engine;
     
     _voxelScriptingInterface.init();
@@ -78,6 +89,11 @@ void ScriptEngine::run() {
     QScriptValue particleScripterValue =  engine.newQObject(&_particleScriptingInterface);
     engine.globalObject().setProperty("Particles", particleScripterValue);
     
+    if (_controllerScriptingInterface) {
+        QScriptValue controllerScripterValue =  engine.newQObject(_controllerScriptingInterface);
+        engine.globalObject().setProperty("Controller", controllerScripterValue);
+    }
+        
     QScriptValue treeScaleValue = engine.newVariant(QVariant(TREE_SCALE));
     engine.globalObject().setProperty("TREE_SCALE", treeScaleValue);
     
@@ -107,16 +123,14 @@ void ScriptEngine::run() {
         if (usecToSleep > 0) {
             usleep(usecToSleep);
         }
-        
+
         if (_isFinished) {
-            //qDebug() << "line: " << __LINE__ << " _isFinished... breaking loop\n";
             break;
         }
 
         QCoreApplication::processEvents();
 
         if (_isFinished) {
-            //qDebug() << "line: " << __LINE__ << " _isFinished... breaking loop\n";
             break;
         }
         
@@ -129,7 +143,9 @@ void ScriptEngine::run() {
             _voxelScriptingInterface.getVoxelPacketSender()->releaseQueuedMessages();
             
             // since we're in non-threaded mode, call process so that the packets are sent
-            //_voxelScriptingInterface.getVoxelPacketSender()->process();
+            if (!_voxelScriptingInterface.getVoxelPacketSender()->isThreaded()) {
+                _voxelScriptingInterface.getVoxelPacketSender()->process();
+            }
         }
 
         if (_particleScriptingInterface.getParticlePacketSender()->serversExist()) {
@@ -140,14 +156,15 @@ void ScriptEngine::run() {
             _particleScriptingInterface.getParticlePacketSender()->releaseQueuedMessages();
             
             // since we're in non-threaded mode, call process so that the packets are sent
-            //_particleScriptingInterface.getParticlePacketSender()->process();
+            if (!_particleScriptingInterface.getParticlePacketSender()->isThreaded()) {
+                _particleScriptingInterface.getParticlePacketSender()->process();
+            }
         }
         
         if (willSendVisualDataCallBack) {
             emit willSendVisualDataCallback();
         }
 
-        
         if (engine.hasUncaughtException()) {
             int line = engine.uncaughtExceptionLineNumber();
             qDebug() << "Uncaught exception at line" << line << ":" << engine.uncaughtException().toString() << "\n";
@@ -161,9 +178,11 @@ void ScriptEngine::run() {
     }
 
     emit finished();
+    _isRunning = false;
 }
 
 void ScriptEngine::stop() { 
     _isFinished = true; 
 }
 
+
diff --git a/libraries/scriptengine/src/ScriptEngine.h b/libraries/script-engine/src/ScriptEngine.h
similarity index 74%
rename from libraries/scriptengine/src/ScriptEngine.h
rename to libraries/script-engine/src/ScriptEngine.h
index 772b0a146f..c5172a5772 100644
--- a/libraries/scriptengine/src/ScriptEngine.h
+++ b/libraries/script-engine/src/ScriptEngine.h
@@ -18,12 +18,16 @@
 #include <AbstractMenuInterface.h>
 #include <ParticleScriptingInterface.h>
 #include <VoxelScriptingInterface.h>
+#include "AbstractControllerScriptingInterface.h"
+
+const QString NO_SCRIPT("");
 
 class ScriptEngine : public QObject {
     Q_OBJECT
 public:
-    ScriptEngine(QString scriptContents, bool wantMenuItems = false, 
-                    const char* scriptMenuName = NULL, AbstractMenuInterface* menu = NULL);
+    ScriptEngine(const QString& scriptContents = NO_SCRIPT, bool wantMenuItems = false, 
+                    const char* scriptMenuName = NULL, AbstractMenuInterface* menu = NULL,
+                    AbstractControllerScriptingInterface* controllerScriptingInterface = NULL);
 
     ~ScriptEngine();
     
@@ -33,6 +37,9 @@ public:
     /// Access the ParticleScriptingInterface in order to initialize it with a custom packet sender and jurisdiction listener
     ParticleScriptingInterface* getParticleScriptingInterface() { return &_particleScriptingInterface; }
 
+    /// sets the script contents, will return false if failed, will fail if script is already running
+    bool setScriptContents(const QString& scriptContents);
+
     void setupMenuItems();
     void cleanMenuItems();
     
@@ -47,11 +54,13 @@ signals:
 protected:
     QString _scriptContents;
     bool _isFinished;
+    bool _isRunning;
 
 
 private:
     VoxelScriptingInterface _voxelScriptingInterface;
     ParticleScriptingInterface _particleScriptingInterface;
+    AbstractControllerScriptingInterface* _controllerScriptingInterface;
     bool _wantMenuItems;
     QString _scriptMenuName;
     AbstractMenuInterface* _menu;
diff --git a/libraries/shared/CMakeLists.txt b/libraries/shared/CMakeLists.txt
index 8c05b1ff8f..1923d906bb 100644
--- a/libraries/shared/CMakeLists.txt
+++ b/libraries/shared/CMakeLists.txt
@@ -7,11 +7,12 @@ set(TARGET_NAME shared)
 project(${TARGET_NAME})
 
 find_package(Qt5Network REQUIRED)
+find_package(Qt5Widgets REQUIRED)
 
 include(${MACRO_DIR}/SetupHifiLibrary.cmake)
 setup_hifi_library(${TARGET_NAME})
 
-qt5_use_modules(${TARGET_NAME} Network)
+qt5_use_modules(${TARGET_NAME} Network Widgets)
 
 # include GLM
 include(${MACRO_DIR}/IncludeGLM.cmake)
diff --git a/libraries/shared/src/AbstractMenuInterface.h b/libraries/shared/src/AbstractMenuInterface.h
index 6af0ea2d00..66083e4ed4 100644
--- a/libraries/shared/src/AbstractMenuInterface.h
+++ b/libraries/shared/src/AbstractMenuInterface.h
@@ -10,9 +10,12 @@
 #ifndef __hifi__AbstractMenuInterface__
 #define __hifi__AbstractMenuInterface__
 
-#include <QMenuBar>
-//#include <QHash>
-//#include <QKeySequence>
+#include <QAction>
+
+class QMenu;
+class QString;
+class QObject;
+class QKeySequence;
 
 class AbstractMenuInterface {
 public:
@@ -26,4 +29,4 @@ public:
     virtual void removeAction(QMenu* menu, const QString& actionName) = 0;
 };
 
-#endif /* defined(__hifi__AbstractMenuInterface__) */
\ No newline at end of file
+#endif /* defined(__hifi__AbstractMenuInterface__) */
diff --git a/libraries/shared/src/GenericThread.h b/libraries/shared/src/GenericThread.h
index 013b7a7936..2de9112204 100644
--- a/libraries/shared/src/GenericThread.h
+++ b/libraries/shared/src/GenericThread.h
@@ -33,6 +33,8 @@ public:
     /// Override this function to do whatever your class actually does, return false to exit thread early.
     virtual bool process() = 0;
 
+    bool isThreaded() const { return _isThreaded; }
+
 protected:
 
     /// Locks all the resources of the thread.
@@ -43,8 +45,6 @@ protected:
     
     bool isStillRunning() const { return !_stopThread; }
 
-    bool isThreaded() const { return _isThreaded; }
-    
 private:
     pthread_mutex_t _mutex;
 
diff --git a/libraries/shared/src/PacketHeaders.cpp b/libraries/shared/src/PacketHeaders.cpp
index e7c16367aa..24865fff5c 100644
--- a/libraries/shared/src/PacketHeaders.cpp
+++ b/libraries/shared/src/PacketHeaders.cpp
@@ -54,7 +54,7 @@ PACKET_VERSION versionForPacketType(PACKET_TYPE type) {
             return 2;
 
         case PACKET_TYPE_PARTICLE_DATA:
-            return 3;
+            return 4;
         
         default:
             return 0;
diff --git a/libraries/shared/src/RegisteredMetaTypes.cpp b/libraries/shared/src/RegisteredMetaTypes.cpp
index de9fcae781..9a099b4171 100644
--- a/libraries/shared/src/RegisteredMetaTypes.cpp
+++ b/libraries/shared/src/RegisteredMetaTypes.cpp
@@ -12,6 +12,7 @@
 
 void registerMetaTypes(QScriptEngine* engine) {
     qScriptRegisterMetaType(engine, vec3toScriptValue, vec3FromScriptValue);
+    qScriptRegisterMetaType(engine, vec2toScriptValue, vec2FromScriptValue);
     qScriptRegisterMetaType(engine, xColorToScriptValue, xColorFromScriptValue);
 }
 
@@ -29,6 +30,19 @@ void vec3FromScriptValue(const QScriptValue &object, glm::vec3 &vec3) {
     vec3.z = object.property("z").toVariant().toFloat();
 }
 
+QScriptValue vec2toScriptValue(QScriptEngine* engine, const glm::vec2 &vec2) {
+    QScriptValue obj = engine->newObject();
+    obj.setProperty("x", vec2.x);
+    obj.setProperty("y", vec2.y);
+    return obj;
+}
+
+void vec2FromScriptValue(const QScriptValue &object, glm::vec2 &vec2) {
+    vec2.x = object.property("x").toVariant().toFloat();
+    vec2.y = object.property("y").toVariant().toFloat();
+}
+
+
 QScriptValue xColorToScriptValue(QScriptEngine *engine, const xColor& color) {
     QScriptValue obj = engine->newObject();
     obj.setProperty("red", color.red);
diff --git a/libraries/shared/src/RegisteredMetaTypes.h b/libraries/shared/src/RegisteredMetaTypes.h
index 51a4562c87..b5d3d80e2f 100644
--- a/libraries/shared/src/RegisteredMetaTypes.h
+++ b/libraries/shared/src/RegisteredMetaTypes.h
@@ -17,11 +17,17 @@
 #include "SharedUtil.h"
 
 Q_DECLARE_METATYPE(glm::vec3)
+Q_DECLARE_METATYPE(glm::vec2)
 Q_DECLARE_METATYPE(xColor)
 
 void registerMetaTypes(QScriptEngine* engine);
+
 QScriptValue vec3toScriptValue(QScriptEngine* engine, const glm::vec3 &vec3);
 void vec3FromScriptValue(const QScriptValue &object, glm::vec3 &vec3);
+
+QScriptValue vec2toScriptValue(QScriptEngine* engine, const glm::vec2 &vec2);
+void vec2FromScriptValue(const QScriptValue &object, glm::vec2 &vec2);
+
 QScriptValue xColorToScriptValue(QScriptEngine* engine, const xColor& color);
 void xColorFromScriptValue(const QScriptValue &object, xColor& color);
 
diff --git a/libraries/shared/src/SharedUtil.cpp b/libraries/shared/src/SharedUtil.cpp
index 9a6bb8b4c3..4d178a6ee9 100644
--- a/libraries/shared/src/SharedUtil.cpp
+++ b/libraries/shared/src/SharedUtil.cpp
@@ -30,10 +30,15 @@ uint64_t usecTimestamp(const timeval *time) {
     return (time->tv_sec * 1000000 + time->tv_usec);
 }
 
+int usecTimestampNowAdjust = 0;
+void usecTimestampNowForceClockSkew(int clockSkew) {
+    ::usecTimestampNowAdjust = clockSkew;
+}
+
 uint64_t usecTimestampNow() {
     timeval now;
     gettimeofday(&now, NULL);
-    return (now.tv_sec * 1000000 + now.tv_usec);
+    return (now.tv_sec * 1000000 + now.tv_usec) + ::usecTimestampNowAdjust;
 }
 
 float randFloat () {
diff --git a/libraries/shared/src/SharedUtil.h b/libraries/shared/src/SharedUtil.h
index cd6444624f..893922ec28 100644
--- a/libraries/shared/src/SharedUtil.h
+++ b/libraries/shared/src/SharedUtil.h
@@ -56,6 +56,7 @@ static const uint64_t USECS_PER_SECOND = 1000 * 1000;
 
 uint64_t usecTimestamp(const timeval *time);
 uint64_t usecTimestampNow();
+void usecTimestampNowForceClockSkew(int clockSkew);
 
 float randFloat();
 int randIntInRange (int min, int max);