diff --git a/interface/src/Application.cpp b/interface/src/Application.cpp
index 9052f082dc..c6741ee7e4 100644
--- a/interface/src/Application.cpp
+++ b/interface/src/Application.cpp
@@ -4094,7 +4094,10 @@ void Application::init() {
         EntityTreePointer tree = getEntities()->getTree();
         if (auto entity = tree->findEntityByEntityItemID(id)) {
             auto sound = DependencyManager::get<SoundCache>()->getSound(newURL);
-            entity->setCollisionSound(sound);
+            auto renderable = entity->getRenderableInterface();
+            if (renderable) {
+                renderable->setCollisionSound(sound);
+            }
         }
     }, Qt::QueuedConnection);
     connect(getMyAvatar().get(), &MyAvatar::newCollisionSoundURL, this, [this](QUrl newURL) {
diff --git a/libraries/animation/src/AnimationCache.cpp b/libraries/animation/src/AnimationCache.cpp
index 6594482085..7d4c0f4e92 100644
--- a/libraries/animation/src/AnimationCache.cpp
+++ b/libraries/animation/src/AnimationCache.cpp
@@ -144,38 +144,3 @@ void Animation::animationParseError(int error, QString str) {
     finishedLoading(false);
 }
 
-AnimationDetails::AnimationDetails() :
-    role(), url(), fps(0.0f), priority(0.0f), loop(false), hold(false), 
-    startAutomatically(false), firstFrame(0.0f), lastFrame(0.0f), running(false), currentFrame(0.0f) 
-{
-}
-
-AnimationDetails::AnimationDetails(QString role, QUrl url, float fps, float priority, bool loop,
-    bool hold, bool startAutomatically, float firstFrame, float lastFrame, bool running, float currentFrame) :
-    role(role), url(url), fps(fps), priority(priority), loop(loop), hold(hold), 
-    startAutomatically(startAutomatically), firstFrame(firstFrame), lastFrame(lastFrame), 
-    running(running), currentFrame(currentFrame) 
-{ 
-}
-
-
-QScriptValue animationDetailsToScriptValue(QScriptEngine* engine, const AnimationDetails& details) {
-    QScriptValue obj = engine->newObject();
-    obj.setProperty("role", details.role);
-    obj.setProperty("url", details.url.toString());
-    obj.setProperty("fps", details.fps);
-    obj.setProperty("priority", details.priority);
-    obj.setProperty("loop", details.loop);
-    obj.setProperty("hold", details.hold);
-    obj.setProperty("startAutomatically", details.startAutomatically);
-    obj.setProperty("firstFrame", details.firstFrame);
-    obj.setProperty("lastFrame", details.lastFrame);
-    obj.setProperty("running", details.running);
-    obj.setProperty("currentFrame", details.currentFrame);
-    return obj;
-}
-
-void animationDetailsFromScriptValue(const QScriptValue& object, AnimationDetails& details) {
-    // nothing for now...
-}
-
diff --git a/libraries/animation/src/AnimationCache.h b/libraries/animation/src/AnimationCache.h
index 0e6a94c1b8..490bb7dcd8 100644
--- a/libraries/animation/src/AnimationCache.h
+++ b/libraries/animation/src/AnimationCache.h
@@ -107,26 +107,5 @@ private:
     QByteArray _data;
 };
 
-class AnimationDetails {
-public:
-    AnimationDetails();
-    AnimationDetails(QString role, QUrl url, float fps, float priority, bool loop,
-        bool hold, bool startAutomatically, float firstFrame, float lastFrame, bool running, float currentFrame);
-
-    QString role;
-    QUrl url;
-    float fps;
-    float priority;
-    bool loop;
-    bool hold;
-    bool startAutomatically;
-    float firstFrame;
-    float lastFrame;
-    bool running;
-    float currentFrame;
-};
-Q_DECLARE_METATYPE(AnimationDetails);
-QScriptValue animationDetailsToScriptValue(QScriptEngine* engine, const AnimationDetails& event);
-void animationDetailsFromScriptValue(const QScriptValue& object, AnimationDetails& event);
 
 #endif // hifi_AnimationCache_h
diff --git a/libraries/entities-renderer/src/EntityTreeRenderer.cpp b/libraries/entities-renderer/src/EntityTreeRenderer.cpp
index ffaac3bf3e..c02bde2244 100644
--- a/libraries/entities-renderer/src/EntityTreeRenderer.cpp
+++ b/libraries/entities-renderer/src/EntityTreeRenderer.cpp
@@ -163,7 +163,6 @@ void EntityTreeRenderer::reloadEntityScripts() {
 void EntityTreeRenderer::init() {
     OctreeProcessor::init();
     EntityTreePointer entityTree = std::static_pointer_cast<EntityTree>(_tree);
-    entityTree->setFBXService(this);
 
     if (_wantScripts) {
         resetEntitiesScriptEngine();
@@ -188,7 +187,6 @@ void EntityTreeRenderer::shutdown() {
 
 void EntityTreeRenderer::setTree(OctreePointer newTree) {
     OctreeProcessor::setTree(newTree);
-    std::static_pointer_cast<EntityTree>(_tree)->setFBXService(this);
 }
 
 void EntityTreeRenderer::update() {
@@ -373,31 +371,6 @@ bool EntityTreeRenderer::applyLayeredZones() {
      return true;
 }
 
-const FBXGeometry* EntityTreeRenderer::getGeometryForEntity(EntityItemPointer entityItem) {
-    const FBXGeometry* result = NULL;
-
-    if (entityItem->getType() == EntityTypes::Model) {
-        std::shared_ptr<RenderableModelEntityItem> modelEntityItem =
-                                                        std::dynamic_pointer_cast<RenderableModelEntityItem>(entityItem);
-        assert(modelEntityItem); // we need this!!!
-        ModelPointer model = modelEntityItem->getModel(getSharedFromThis());
-        if (model && model->isLoaded()) {
-            result = &model->getFBXGeometry();
-        }
-    }
-    return result;
-}
-
-ModelPointer EntityTreeRenderer::getModelForEntityItem(EntityItemPointer entityItem) {
-    ModelPointer result = nullptr;
-    if (entityItem->getType() == EntityTypes::Model) {
-        std::shared_ptr<RenderableModelEntityItem> modelEntityItem =
-                                                        std::dynamic_pointer_cast<RenderableModelEntityItem>(entityItem);
-        result = modelEntityItem->getModel(getSharedFromThis());
-    }
-    return result;
-}
-
 void EntityTreeRenderer::processEraseMessage(ReceivedMessage& message, const SharedNodePointer& sourceNode) {
     std::static_pointer_cast<EntityTree>(_tree)->processEraseMessage(message, sourceNode);
 }
@@ -889,7 +862,12 @@ void EntityTreeRenderer::checkAndCallPreload(const EntityItemID& entityID, bool
 
 void EntityTreeRenderer::playEntityCollisionSound(EntityItemPointer entity, const Collision& collision) {
     assert((bool)entity);
-    SharedSoundPointer collisionSound = entity->getCollisionSound();
+    auto renderable = entity->getRenderableInterface();
+    if (!renderable) { 
+        return; 
+    }
+    
+    SharedSoundPointer collisionSound = renderable->getCollisionSound();
     if (!collisionSound) {
         return;
     }
diff --git a/libraries/entities-renderer/src/EntityTreeRenderer.h b/libraries/entities-renderer/src/EntityTreeRenderer.h
index 5dcbd1aeb9..f4909a2036 100644
--- a/libraries/entities-renderer/src/EntityTreeRenderer.h
+++ b/libraries/entities-renderer/src/EntityTreeRenderer.h
@@ -39,7 +39,7 @@ using ModelWeakPointer = std::weak_ptr<Model>;
 using CalculateEntityLoadingPriority = std::function<float(const EntityItem& item)>;
 
 // Generic client side Octree renderer class.
-class EntityTreeRenderer : public OctreeProcessor, public EntityItemFBXService, public Dependency {
+class EntityTreeRenderer : public OctreeProcessor, public Dependency {
     Q_OBJECT
 public:
     EntityTreeRenderer(bool wantScripts, AbstractViewStateInterface* viewState,
@@ -68,9 +68,6 @@ public:
 
     virtual void init() override;
 
-    virtual const FBXGeometry* getGeometryForEntity(EntityItemPointer entityItem) override;
-    virtual ModelPointer getModelForEntityItem(EntityItemPointer entityItem) override;
-
     /// clears the tree
     virtual void clear() override;
 
diff --git a/libraries/entities-renderer/src/RenderableEntityItem.h b/libraries/entities-renderer/src/RenderableEntityItem.h
index 244a850d67..c848b10f6a 100644
--- a/libraries/entities-renderer/src/RenderableEntityItem.h
+++ b/libraries/entities-renderer/src/RenderableEntityItem.h
@@ -14,6 +14,7 @@
 
 #include <render/Scene.h>
 #include <EntityItem.h>
+#include <Sound.h>
 #include "AbstractViewStateInterface.h"
 #include "EntitiesRendererLogging.h"
 
@@ -40,7 +41,11 @@ public:
     virtual void render(RenderArgs* args) {};
     virtual bool addToScene(const EntityItemPointer& self, const render::ScenePointer& scene, render::Transaction& transaction) = 0;
     virtual void removeFromScene(const EntityItemPointer& self, const render::ScenePointer& scene, render::Transaction& transaction) = 0;
+    const SharedSoundPointer& getCollisionSound() { return _collisionSound; }
+    void setCollisionSound(const SharedSoundPointer& sound) { _collisionSound = sound; }
     virtual RenderableEntityInterface* getRenderableInterface() { return nullptr; }
+private:
+    SharedSoundPointer _collisionSound;
 };
 
 class RenderableEntityItemProxy {
diff --git a/libraries/entities-renderer/src/RenderableModelEntityItem.cpp b/libraries/entities-renderer/src/RenderableModelEntityItem.cpp
index f343fdb155..b8e869e4d9 100644
--- a/libraries/entities-renderer/src/RenderableModelEntityItem.cpp
+++ b/libraries/entities-renderer/src/RenderableModelEntityItem.cpp
@@ -69,11 +69,9 @@ void RenderableModelEntityItem::setModelURL(const QString& url) {
 
 void RenderableModelEntityItem::loader() {
     _needsModelReload = true;
-    auto renderer = DependencyManager::get<EntityTreeRenderer>();
-    assert(renderer);
     {
         PerformanceTimer perfTimer("getModel");
-        getModel(renderer);
+        getModel();
     }
 }
 
@@ -390,8 +388,7 @@ void RenderableModelEntityItem::render(RenderArgs* args) {
         if (!_model || _needsModelReload) {
             // TODO: this getModel() appears to be about 3% of model render time. We should optimize
             PerformanceTimer perfTimer("getModel");
-            auto renderer = qSharedPointerCast<EntityTreeRenderer>(args->_renderData);
-            getModel(renderer);
+            getModel();
 
             // Remap textures immediately after loading to avoid flicker
             remapTextures();
@@ -483,7 +480,7 @@ void RenderableModelEntityItem::render(RenderArgs* args) {
         auto& currentURL = getParsedModelURL();
         if (currentURL != _model->getURL()) {
             // Defer setting the url to the render thread
-            getModel(_myRenderer);
+            getModel();
         }
     }
 }
@@ -492,16 +489,11 @@ ModelPointer RenderableModelEntityItem::getModelNotSafe() {
     return _model;
 }
 
-ModelPointer RenderableModelEntityItem::getModel(QSharedPointer<EntityTreeRenderer> renderer) {
-    if (!renderer) {
-        return nullptr;
-    }
-
+ModelPointer RenderableModelEntityItem::getModel() {
     // make sure our renderer is setup
     if (!_myRenderer) {
-        _myRenderer = renderer;
+        _myRenderer = DependencyManager::get<EntityTreeRenderer>();
     }
-    assert(_myRenderer == renderer); // you should only ever render on one renderer
 
     if (!_myRenderer || QThread::currentThread() != _myRenderer->thread()) {
         return _model;
@@ -513,7 +505,7 @@ ModelPointer RenderableModelEntityItem::getModel(QSharedPointer<EntityTreeRender
     if (!getModelURL().isEmpty()) {
         // If we don't have a model, allocate one *immediately*
         if (!_model) {
-            _model = _myRenderer->allocateModel(getModelURL(), renderer->getEntityLoadingPriority(*this), this);
+            _model = _myRenderer->allocateModel(getModelURL(), _myRenderer->getEntityLoadingPriority(*this), this);
             _needsInitialSimulation = true;
         // If we need to change URLs, update it *after rendering* (to avoid access violations)
         } else if (QUrl(getModelURL()) != _model->getURL()) {
@@ -587,6 +579,22 @@ EntityItemProperties RenderableModelEntityItem::getProperties(EntityPropertyFlag
         properties.setRenderInfoHasTransparent(_model->getRenderInfoHasTransparent());
     }
 
+
+    const FBXGeometry* geometry = NULL;
+    const_cast<RenderableModelEntityItem*>(this)->getModel();
+    if (_model && _model->isLoaded()) {
+        geometry = &_model->getFBXGeometry();
+    }
+
+    // TODO: improve naturalDimensions in the future,
+    //       for now we've added this hack for setting natural dimensions of models
+    if (geometry) {
+        Extents meshExtents = geometry->getUnscaledMeshExtents();
+        properties.setNaturalDimensions(meshExtents.maximum - meshExtents.minimum);
+        properties.calculateNaturalPosition(meshExtents.minimum, meshExtents.maximum);
+    }
+
+
     return properties;
 }
 
@@ -1255,3 +1263,27 @@ QStringList RenderableModelEntityItem::getJointNames() const {
     }
     return result;
 }
+
+void RenderableModelEntityItem::mapJoints(const QStringList& modelJointNames) {
+    // if we don't have animation, or we're already joint mapped then bail early
+    if (!hasAnimation() || jointsMapped()) {
+        return;
+    }
+
+    if (!_animation || _animation->getURL().toString() != getAnimationURL()) {
+        _animation = DependencyManager::get<AnimationCache>()->getAnimation(getAnimationURL());
+    }
+
+    if (_animation && _animation->isLoaded()) {
+        QStringList animationJointNames = _animation->getJointNames();
+
+        if (modelJointNames.size() > 0 && animationJointNames.size() > 0) {
+            _jointMapping.resize(modelJointNames.size());
+            for (int i = 0; i < modelJointNames.size(); i++) {
+                _jointMapping[i] = animationJointNames.indexOf(modelJointNames[i]);
+            }
+            _jointMappingCompleted = true;
+            _jointMappingURL = _animationProperties.getURL();
+        }
+    }
+}
diff --git a/libraries/entities-renderer/src/RenderableModelEntityItem.h b/libraries/entities-renderer/src/RenderableModelEntityItem.h
index 2bbb51b3f0..2d240c01a6 100644
--- a/libraries/entities-renderer/src/RenderableModelEntityItem.h
+++ b/libraries/entities-renderer/src/RenderableModelEntityItem.h
@@ -16,6 +16,7 @@
 #include <QStringList>
 
 #include <ModelEntityItem.h>
+#include <AnimationCache.h>
 
 class Model;
 class EntityTreeRenderer;
@@ -53,7 +54,7 @@ public:
                         bool& keepSearching, OctreeElementPointer& element, float& distance,
                         BoxFace& face, glm::vec3& surfaceNormal,
                         void** intersectedObject, bool precisionPicking) const override;
-    ModelPointer getModel(QSharedPointer<EntityTreeRenderer> renderer);
+    ModelPointer getModel();
     ModelPointer getModelNotSafe();
 
     virtual bool needsToCallUpdate() const override;
@@ -106,6 +107,15 @@ public:
     // Transparency is handled in ModelMeshPartPayload
     bool isTransparent() override { return false; }
 
+    void mapJoints(const QStringList& modelJointNames);
+    bool jointsMapped() const {
+        return _jointMappingURL == getAnimationURL() && _jointMappingCompleted;
+    }
+
+    AnimationPointer getAnimation() const {
+        return _animation;
+    }
+
 private:
     QVariantMap parseTexturesToMap(QString textures);
     void remapTextures();
@@ -131,6 +141,12 @@ private:
     bool _needsJointSimulation { false };
     bool _showCollisionGeometry { false };
     const void* _collisionMeshKey { nullptr };
+
+    // used on client side
+    bool _jointMappingCompleted { false };
+    QVector<int> _jointMapping; // domain is index into model-joints, range is index into animation-joints
+    QString _jointMappingURL;
+    AnimationPointer _animation;
 };
 
 #endif // hifi_RenderableModelEntityItem_h
diff --git a/libraries/entities-renderer/src/RenderablePolyVoxEntityItem.cpp b/libraries/entities-renderer/src/RenderablePolyVoxEntityItem.cpp
index 6cda472d96..88a5d2b873 100644
--- a/libraries/entities-renderer/src/RenderablePolyVoxEntityItem.cpp
+++ b/libraries/entities-renderer/src/RenderablePolyVoxEntityItem.cpp
@@ -9,11 +9,15 @@
 //  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
 //
 
+
+#include "RenderablePolyVoxEntityItem.h"
+
 #include <math.h>
 #include <QObject>
 #include <QByteArray>
 #include <QtConcurrent/QtConcurrentRun>
 #include <glm/gtx/transform.hpp>
+#include <model-networking/SimpleMeshProxy.h>
 #include "ModelScriptingInterface.h"
 
 #if defined(__GNUC__) && !defined(__clang__)
@@ -52,7 +56,6 @@
 #include "EntityTreeRenderer.h"
 #include "polyvox_vert.h"
 #include "polyvox_frag.h"
-#include "RenderablePolyVoxEntityItem.h"
 #include "EntityEditPacketSender.h"
 #include "PhysicalEntitySimulation.h"
 
@@ -1626,6 +1629,7 @@ void RenderablePolyVoxEntityItem::locationChanged(bool tellPhysics) {
     scene->enqueueTransaction(transaction);
 }
 
+
 bool RenderablePolyVoxEntityItem::getMeshes(MeshProxyList& result) {
     if (!updateDependents()) {
         return false;
@@ -1645,7 +1649,7 @@ bool RenderablePolyVoxEntityItem::getMeshes(MeshProxyList& result) {
         } else {
             success = true;
             // the mesh will be in voxel-space.  transform it into object-space
-            meshProxy = new MeshProxy(
+            meshProxy = new SimpleMeshProxy(
                 _mesh->map([=](glm::vec3 position){ return glm::vec3(transform * glm::vec4(position, 1.0f)); },
                            [=](glm::vec3 normal){ return glm::normalize(glm::vec3(transform * glm::vec4(normal, 0.0f))); },
                            [&](uint32_t index){ return index; }));
diff --git a/libraries/entities-renderer/src/RenderablePolyVoxEntityItem.h b/libraries/entities-renderer/src/RenderablePolyVoxEntityItem.h
index 174d6338d3..45625ada6d 100644
--- a/libraries/entities-renderer/src/RenderablePolyVoxEntityItem.h
+++ b/libraries/entities-renderer/src/RenderablePolyVoxEntityItem.h
@@ -12,17 +12,19 @@
 #ifndef hifi_RenderablePolyVoxEntityItem_h
 #define hifi_RenderablePolyVoxEntityItem_h
 
-#include <QSemaphore>
 #include <atomic>
 
+#include <QSemaphore>
+
 #include <PolyVoxCore/SimpleVolume.h>
 #include <PolyVoxCore/Raycast.h>
 
+#include <gpu/Context.h>
+#include <model/Forward.h>
 #include <TextureCache.h>
+#include <PolyVoxEntityItem.h>
 
-#include "PolyVoxEntityItem.h"
 #include "RenderableEntityItem.h"
-#include "gpu/Context.h"
 
 class PolyVoxPayload {
 public:
diff --git a/libraries/entities/CMakeLists.txt b/libraries/entities/CMakeLists.txt
index ddb5fbaf73..19341ec3e2 100644
--- a/libraries/entities/CMakeLists.txt
+++ b/libraries/entities/CMakeLists.txt
@@ -1,9 +1,3 @@
 set(TARGET_NAME entities)
 setup_hifi_library(Network Script)
-link_hifi_libraries(avatars shared audio octree model model-networking fbx networking animation)
-include_hifi_library_headers(networking)
-include_hifi_library_headers(gpu)
-
-target_bullet()
-
-include_hifi_library_headers(render)
+link_hifi_libraries(shared networking octree avatars)
diff --git a/libraries/entities/src/AnimationPropertyGroup.cpp b/libraries/entities/src/AnimationPropertyGroup.cpp
index f6d08ad8b9..848d4352a7 100644
--- a/libraries/entities/src/AnimationPropertyGroup.cpp
+++ b/libraries/entities/src/AnimationPropertyGroup.cpp
@@ -9,12 +9,12 @@
 //  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
 //
 
+#include "AnimationPropertyGroup.h"
+
 #include <QJsonDocument>
 #include <OctreePacketData.h>
 
-#include <AnimationLoop.h>
 
-#include "AnimationPropertyGroup.h"
 #include "EntityItemProperties.h"
 #include "EntityItemPropertiesMacros.h"
 
diff --git a/libraries/entities/src/AnimationPropertyGroup.h b/libraries/entities/src/AnimationPropertyGroup.h
index c6d386d2ef..c0086b41b3 100644
--- a/libraries/entities/src/AnimationPropertyGroup.h
+++ b/libraries/entities/src/AnimationPropertyGroup.h
@@ -19,7 +19,7 @@
 
 #include <QtScript/QScriptEngine>
 
-#include "AnimationLoop.h"
+#include <shared/types/AnimationLoop.h> // for Animation, AnimationCache, and AnimationPointer classes
 #include "EntityItemPropertiesMacros.h"
 #include "PropertyGroup.h"
 
diff --git a/libraries/entities/src/EntityItem.cpp b/libraries/entities/src/EntityItem.cpp
index 17de15e32b..23ce097cc2 100644
--- a/libraries/entities/src/EntityItem.cpp
+++ b/libraries/entities/src/EntityItem.cpp
@@ -23,8 +23,8 @@
 #include <PhysicsHelpers.h>
 #include <RegisteredMetaTypes.h>
 #include <SharedUtil.h> // usecTimestampNow()
-#include <SoundCache.h>
 #include <LogHandler.h>
+#include <Extents.h>
 
 #include "EntityScriptingInterface.h"
 #include "EntitiesLogging.h"
@@ -988,21 +988,6 @@ void EntityItem::setCollisionSoundURL(const QString& value) {
     }
 }
 
-SharedSoundPointer EntityItem::getCollisionSound() {
-    SharedSoundPointer result;
-    withReadLock([&] {
-        result = _collisionSound;
-    });
-
-    if (!result) {
-        result = DependencyManager::get<SoundCache>()->getSound(_collisionSoundURL);
-        withWriteLock([&] {
-            _collisionSound = result;
-        });
-    }
-    return result;
-}
-
 void EntityItem::simulate(const quint64& now) {
     if (getLastSimulated() == 0) {
         setLastSimulated(now);
@@ -2650,12 +2635,6 @@ QString EntityItem::getCollisionSoundURL() const {
     return result;
 }
 
-void EntityItem::setCollisionSound(SharedSoundPointer sound) { 
-    withWriteLock([&] {
-        _collisionSound = sound;
-    });
-}
-
 glm::vec3 EntityItem::getRegistrationPoint() const { 
     glm::vec3 result;
     withReadLock([&] {
diff --git a/libraries/entities/src/EntityItem.h b/libraries/entities/src/EntityItem.h
index 0318c72991..92c83651aa 100644
--- a/libraries/entities/src/EntityItem.h
+++ b/libraries/entities/src/EntityItem.h
@@ -19,14 +19,13 @@
 
 #include <QtGui/QWindow>
 
-#include <AnimationCache.h> // for Animation, AnimationCache, and AnimationPointer classes
+#include <shared/types/AnimationLoop.h> // for Animation, AnimationCache, and AnimationPointer classes
 #include <Octree.h> // for EncodeBitstreamParams class
 #include <OctreeElement.h> // for OctreeElement::AppendState
 #include <OctreePacketData.h>
 #include <PhysicsCollisionGroups.h>
 #include <ShapeInfo.h>
 #include <Transform.h>
-#include <Sound.h>
 #include <SpatiallyNestable.h>
 #include <Interpolate.h>
 
@@ -260,9 +259,6 @@ public:
     QString getCollisionSoundURL() const;
     void setCollisionSoundURL(const QString& value);
 
-    SharedSoundPointer getCollisionSound();
-    void setCollisionSound(SharedSoundPointer sound);
-
     glm::vec3 getRegistrationPoint() const; /// registration point as ratio of entity
 
     /// registration point as ratio of entity
@@ -526,7 +522,6 @@ protected:
     quint64 _loadedScriptTimestamp { ENTITY_ITEM_DEFAULT_SCRIPT_TIMESTAMP + 1 };
 
     QString _collisionSoundURL;
-    SharedSoundPointer _collisionSound;
     glm::vec3 _registrationPoint;
     float _angularDamping;
     bool _visible;
diff --git a/libraries/entities/src/EntityItemID.cpp b/libraries/entities/src/EntityItemID.cpp
index 5f07019db4..3b4ca1cea0 100644
--- a/libraries/entities/src/EntityItemID.cpp
+++ b/libraries/entities/src/EntityItemID.cpp
@@ -9,6 +9,7 @@
 //  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
 //
 
+#include "EntityItemID.h"
 #include <QtCore/QObject>
 #include <QDebug>
 
@@ -17,7 +18,6 @@
 #include <UUID.h>
 
 #include "RegisteredMetaTypes.h"
-#include "EntityItemID.h"
 
 int entityItemIDTypeID = qRegisterMetaType<EntityItemID>();
 
diff --git a/libraries/entities/src/EntityItemProperties.cpp b/libraries/entities/src/EntityItemProperties.cpp
index 1ed020e592..a207902789 100644
--- a/libraries/entities/src/EntityItemProperties.cpp
+++ b/libraries/entities/src/EntityItemProperties.cpp
@@ -17,6 +17,7 @@
 #include <ByteCountCoding.h>
 #include <GLMHelpers.h>
 #include <RegisteredMetaTypes.h>
+#include <Extents.h>
 
 #include "EntitiesLogging.h"
 #include "EntityItem.h"
diff --git a/libraries/entities/src/EntityItemProperties.h b/libraries/entities/src/EntityItemProperties.h
index 590298e102..b526ac663c 100644
--- a/libraries/entities/src/EntityItemProperties.h
+++ b/libraries/entities/src/EntityItemProperties.h
@@ -15,6 +15,7 @@
 #include <stdint.h>
 
 #include <glm/glm.hpp>
+#include <glm/gtx/component_wise.hpp>
 
 #include <QtScript/QScriptEngine>
 #include <QtCore/QObject>
diff --git a/libraries/entities/src/EntityScriptingInterface.cpp b/libraries/entities/src/EntityScriptingInterface.cpp
index 90dc6893b4..7351d49dff 100644
--- a/libraries/entities/src/EntityScriptingInterface.cpp
+++ b/libraries/entities/src/EntityScriptingInterface.cpp
@@ -21,7 +21,6 @@
 #include <VariantMapToScriptValue.h>
 #include <SharedUtil.h>
 #include <SpatialParentFinder.h>
-#include <model-networking/MeshProxy.h>
 
 #include "EntitiesLogging.h"
 #include "EntityDynamicFactoryInterface.h"
@@ -298,18 +297,6 @@ EntityItemProperties EntityScriptingInterface::getEntityProperties(QUuid identit
                 }
 
                 results = entity->getProperties(desiredProperties);
-
-                // TODO: improve naturalDimensions in the future,
-                //       for now we've added this hack for setting natural dimensions of models
-                if (entity->getType() == EntityTypes::Model) {
-                    const FBXGeometry* geometry = _entityTree->getGeometryForEntity(entity);
-                    if (geometry) {
-                        Extents meshExtents = geometry->getUnscaledMeshExtents();
-                        results.setNaturalDimensions(meshExtents.maximum - meshExtents.minimum);
-                        results.calculateNaturalPosition(meshExtents.minimum, meshExtents.maximum);
-                    }
-                }
-
             }
         });
     }
diff --git a/libraries/entities/src/EntityTree.cpp b/libraries/entities/src/EntityTree.cpp
index 11694c4cea..4773f45af7 100644
--- a/libraries/entities/src/EntityTree.cpp
+++ b/libraries/entities/src/EntityTree.cpp
@@ -9,11 +9,15 @@
 //  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
 //
 
-#include <PerfStat.h>
-#include <QDateTime>
+#include "EntityTree.h"
+#include <QtCore/QDateTime>
+#include <QtCore/QQueue>
+
 #include <QtScript/QScriptEngine>
 
-#include "EntityTree.h"
+#include <PerfStat.h>
+#include <Extents.h>
+
 #include "EntitySimulation.h"
 #include "VariantMapToScriptValue.h"
 
@@ -55,9 +59,7 @@ public:
 
 
 EntityTree::EntityTree(bool shouldReaverage) :
-    Octree(shouldReaverage),
-    _fbxService(NULL),
-    _simulation(NULL)
+    Octree(shouldReaverage)
 {
     resetClientEditStats();
 }
diff --git a/libraries/entities/src/EntityTree.h b/libraries/entities/src/EntityTree.h
index 8e3c9f5412..24e6c364b1 100644
--- a/libraries/entities/src/EntityTree.h
+++ b/libraries/entities/src/EntityTree.h
@@ -41,13 +41,6 @@ public:
     virtual void entityCreated(const EntityItem& newEntity, const SharedNodePointer& senderNode) = 0;
 };
 
-class EntityItemFBXService {
-public:
-    virtual const FBXGeometry* getGeometryForEntity(EntityItemPointer entityItem) = 0;
-    virtual ModelPointer getModelForEntityItem(EntityItemPointer entityItem) = 0;
-};
-
-
 class SendEntitiesOperationArgs {
 public:
     glm::vec3 root;
@@ -189,15 +182,6 @@ public:
     int processEraseMessage(ReceivedMessage& message, const SharedNodePointer& sourceNode);
     int processEraseMessageDetails(const QByteArray& buffer, const SharedNodePointer& sourceNode);
 
-    EntityItemFBXService* getFBXService() const { return _fbxService; }
-    void setFBXService(EntityItemFBXService* service) { _fbxService = service; }
-    const FBXGeometry* getGeometryForEntity(EntityItemPointer entityItem) {
-        return _fbxService ? _fbxService->getGeometryForEntity(entityItem) : NULL;
-    }
-    ModelPointer getModelForEntityItem(EntityItemPointer entityItem) {
-        return _fbxService ? _fbxService->getModelForEntityItem(entityItem) : NULL;
-    }
-
     EntityTreeElementPointer getContainingElement(const EntityItemID& entityItemID)  /*const*/;
     void setContainingElement(const EntityItemID& entityItemID, EntityTreeElementPointer element);
     void debugDumpMap();
@@ -325,8 +309,6 @@ protected:
         _deletedEntityItemIDs << id;
     }
 
-    EntityItemFBXService* _fbxService;
-
     mutable QReadWriteLock _entityToElementLock;
     QHash<EntityItemID, EntityTreeElementPointer> _entityToElementMap;
 
diff --git a/libraries/entities/src/EntityTreeElement.cpp b/libraries/entities/src/EntityTreeElement.cpp
index 0dc42717f5..cce7ee006f 100644
--- a/libraries/entities/src/EntityTreeElement.cpp
+++ b/libraries/entities/src/EntityTreeElement.cpp
@@ -9,17 +9,18 @@
 //  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
 //
 
+#include "EntityTreeElement.h"
+
 #include <glm/gtx/transform.hpp>
 
-#include <FBXReader.h>
 #include <GeometryUtil.h>
 #include <OctreeUtils.h>
+#include <Extents.h>
 
 #include "EntitiesLogging.h"
 #include "EntityNodeData.h"
 #include "EntityItemProperties.h"
 #include "EntityTree.h"
-#include "EntityTreeElement.h"
 #include "EntityTypes.h"
 
 EntityTreeElement::EntityTreeElement(unsigned char* octalCode) : OctreeElement() {
diff --git a/libraries/entities/src/KeyLightPropertyGroup.cpp b/libraries/entities/src/KeyLightPropertyGroup.cpp
index 1011094266..f0d059af67 100644
--- a/libraries/entities/src/KeyLightPropertyGroup.cpp
+++ b/libraries/entities/src/KeyLightPropertyGroup.cpp
@@ -9,12 +9,11 @@
 //  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
 //
 
+#include "KeyLightPropertyGroup.h"
+
 #include <QJsonDocument>
 #include <OctreePacketData.h>
 
-#include <AnimationLoop.h>
-
-#include "KeyLightPropertyGroup.h"
 #include "EntityItemProperties.h"
 #include "EntityItemPropertiesMacros.h"
 
diff --git a/libraries/entities/src/ModelEntityItem.cpp b/libraries/entities/src/ModelEntityItem.cpp
index 89213459fa..b5e759d2d8 100644
--- a/libraries/entities/src/ModelEntityItem.cpp
+++ b/libraries/entities/src/ModelEntityItem.cpp
@@ -37,7 +37,6 @@ ModelEntityItem::ModelEntityItem(const EntityItemID& entityItemID) : EntityItem(
     _animationLoop.setResetOnRunning(false);
 
     _type = EntityTypes::Model;
-    _jointMappingCompleted = false;
     _lastKnownCurrentFrame = -1;
     _color[0] = _color[1] = _color[2] = 0;
 }
@@ -204,30 +203,6 @@ void ModelEntityItem::appendSubclassData(OctreePacketData* packetData, EncodeBit
 }
 
 
-void ModelEntityItem::mapJoints(const QStringList& modelJointNames) {
-    // if we don't have animation, or we're already joint mapped then bail early
-    if (!hasAnimation() || jointsMapped()) {
-        return;
-    }
-
-    if (!_animation || _animation->getURL().toString() != getAnimationURL()) {
-        _animation = DependencyManager::get<AnimationCache>()->getAnimation(getAnimationURL());
-    }
-
-    if (_animation && _animation->isLoaded()) {
-        QStringList animationJointNames = _animation->getJointNames();
-
-        if (modelJointNames.size() > 0 && animationJointNames.size() > 0) {
-            _jointMapping.resize(modelJointNames.size());
-            for (int i = 0; i < modelJointNames.size(); i++) {
-                _jointMapping[i] = animationJointNames.indexOf(modelJointNames[i]);
-            }
-            _jointMappingCompleted = true;
-            _jointMappingURL = _animationProperties.getURL();
-        }
-    }
-}
-
 bool ModelEntityItem::isAnimatingSomething() const {
     return getAnimationIsPlaying() &&
             getAnimationFPS() != 0.0f &&
diff --git a/libraries/entities/src/ModelEntityItem.h b/libraries/entities/src/ModelEntityItem.h
index 5076a43892..0c6132e211 100644
--- a/libraries/entities/src/ModelEntityItem.h
+++ b/libraries/entities/src/ModelEntityItem.h
@@ -12,8 +12,6 @@
 #ifndef hifi_ModelEntityItem_h
 #define hifi_ModelEntityItem_h
 
-#include <AnimationLoop.h>
-
 #include "EntityItem.h"
 #include "AnimationPropertyGroup.h"
 
@@ -103,10 +101,7 @@ public:
     void setAnimationLastFrame(float lastFrame) { _animationLoop.setLastFrame(lastFrame); }
     float getAnimationLastFrame() const { return _animationLoop.getLastFrame(); }
 
-    void mapJoints(const QStringList& modelJointNames);
-    bool jointsMapped() const { return _jointMappingURL == getAnimationURL() && _jointMappingCompleted; }
 
-    AnimationPointer getAnimation() const { return _animation; }
     bool getAnimationIsPlaying() const { return _animationLoop.getRunning(); }
     float getAnimationCurrentFrame() const { return _animationLoop.getCurrentFrame(); }
     float getAnimationFPS() const { return _animationLoop.getFPS(); }
@@ -158,7 +153,6 @@ protected:
     QUrl _parsedModelURL;
     QString _compoundShapeURL;
 
-    AnimationPointer _animation;
     AnimationPropertyGroup _animationProperties;
     AnimationLoop _animationLoop;
 
@@ -166,11 +160,6 @@ protected:
     QString _textures;
 
     ShapeType _shapeType = SHAPE_TYPE_NONE;
-
-    // used on client side
-    bool _jointMappingCompleted;
-    QVector<int> _jointMapping; // domain is index into model-joints, range is index into animation-joints
-    QString _jointMappingURL;
 };
 
 #endif // hifi_ModelEntityItem_h
diff --git a/libraries/model-networking/src/model-networking/MeshFace.cpp b/libraries/model-networking/src/model-networking/MeshFace.cpp
deleted file mode 100644
index 8092d36aa3..0000000000
--- a/libraries/model-networking/src/model-networking/MeshFace.cpp
+++ /dev/null
@@ -1,44 +0,0 @@
-//
-//  MeshFace.cpp
-//  libraries/model/src/model/
-//
-//  Created by Seth Alves on 2017-3-23
-//  Copyright 2017 High Fidelity, Inc.
-//
-//  Distributed under the Apache License, Version 2.0.
-//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
-//
-
-#include <RegisteredMetaTypes.h>
-
-#include "MeshFace.h"
-
-
-QScriptValue meshFaceToScriptValue(QScriptEngine* engine, const MeshFace &meshFace) {
-    QScriptValue obj = engine->newObject();
-    obj.setProperty("vertices", qVectorIntToScriptValue(engine, meshFace.vertexIndices));
-    return obj;
-}
-
-void meshFaceFromScriptValue(const QScriptValue &object, MeshFace& meshFaceResult) {
-    qVectorIntFromScriptValue(object.property("vertices"), meshFaceResult.vertexIndices);
-}
-
-QScriptValue qVectorMeshFaceToScriptValue(QScriptEngine* engine, const QVector<MeshFace>& vector) {
-    QScriptValue array = engine->newArray();
-    for (int i = 0; i < vector.size(); i++) {
-        array.setProperty(i, meshFaceToScriptValue(engine, vector.at(i)));
-    }
-    return array;
-}
-
-void qVectorMeshFaceFromScriptValue(const QScriptValue& array, QVector<MeshFace>& result) {
-    int length = array.property("length").toInteger();
-    result.clear();
-
-    for (int i = 0; i < length; i++) {
-        MeshFace meshFace = MeshFace();
-        meshFaceFromScriptValue(array.property(i), meshFace);
-        result << meshFace;
-    }
-}
diff --git a/libraries/model-networking/src/model-networking/MeshFace.h b/libraries/model-networking/src/model-networking/MeshFace.h
deleted file mode 100644
index 3b81b372c3..0000000000
--- a/libraries/model-networking/src/model-networking/MeshFace.h
+++ /dev/null
@@ -1,43 +0,0 @@
-//
-//  MeshFace.h
-//  libraries/model/src/model/
-//
-//  Created by Seth Alves on 2017-3-23
-//  Copyright 2017 High Fidelity, Inc.
-//
-//  Distributed under the Apache License, Version 2.0.
-//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
-//
-
-#ifndef hifi_MeshFace_h
-#define hifi_MeshFace_h
-
-#include <QScriptEngine>
-#include <QScriptValueIterator>
-#include <QtScript/QScriptValue>
-
-#include <model/Geometry.h>
-
-using MeshPointer = std::shared_ptr<model::Mesh>;
-
-class MeshFace {
-
-public:
-    MeshFace() {}
-    ~MeshFace() {}
-
-    QVector<uint32_t> vertexIndices;
-    // TODO -- material...
-};
-
-Q_DECLARE_METATYPE(MeshFace)
-Q_DECLARE_METATYPE(QVector<MeshFace>)
-
-QScriptValue meshFaceToScriptValue(QScriptEngine* engine, const MeshFace &meshFace);
-void meshFaceFromScriptValue(const QScriptValue &object, MeshFace& meshFaceResult);
-QScriptValue qVectorMeshFaceToScriptValue(QScriptEngine* engine, const QVector<MeshFace>& vector);
-void qVectorMeshFaceFromScriptValue(const QScriptValue& array, QVector<MeshFace>& result);
-
-
-
-#endif // hifi_MeshFace_h
diff --git a/libraries/model-networking/src/model-networking/MeshProxy.cpp b/libraries/model-networking/src/model-networking/MeshProxy.cpp
deleted file mode 100644
index 1b6fa43c82..0000000000
--- a/libraries/model-networking/src/model-networking/MeshProxy.cpp
+++ /dev/null
@@ -1,48 +0,0 @@
-//
-//  MeshProxy.cpp
-//  libraries/model/src/model/
-//
-//  Created by Seth Alves on 2017-3-22.
-//  Copyright 2017 High Fidelity, Inc.
-//
-//  Distributed under the Apache License, Version 2.0.
-//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
-//
-
-#include "MeshProxy.h"
-
-
-QScriptValue meshToScriptValue(QScriptEngine* engine, MeshProxy* const &in) {
-    return engine->newQObject(in, QScriptEngine::QtOwnership,
-                              QScriptEngine::ExcludeDeleteLater | QScriptEngine::ExcludeChildObjects);
-}
-
-void meshFromScriptValue(const QScriptValue& value, MeshProxy* &out) {
-    out = qobject_cast<MeshProxy*>(value.toQObject());
-}
-
-QScriptValue meshesToScriptValue(QScriptEngine* engine, const MeshProxyList &in) {
-    // QScriptValueList result;
-    QScriptValue result = engine->newArray();
-    int i = 0;
-    foreach (MeshProxy* const meshProxy, in) {
-        result.setProperty(i++, meshToScriptValue(engine, meshProxy));
-    }
-    return result;
-}
-
-void meshesFromScriptValue(const QScriptValue& value, MeshProxyList &out) {
-    QScriptValueIterator itr(value);
-
-    qDebug() << "in meshesFromScriptValue, value.length =" << value.property("length").toInt32();
-
-    while(itr.hasNext()) {
-        itr.next();
-        MeshProxy* meshProxy = qscriptvalue_cast<MeshProxyList::value_type>(itr.value());
-        if (meshProxy) {
-            out.append(meshProxy);
-        } else {
-            qDebug() << "null meshProxy";
-        }
-    }
-}
diff --git a/libraries/model-networking/src/model-networking/MeshProxy.h b/libraries/model-networking/src/model-networking/MeshProxy.h
deleted file mode 100644
index c5b25b7895..0000000000
--- a/libraries/model-networking/src/model-networking/MeshProxy.h
+++ /dev/null
@@ -1,52 +0,0 @@
-//
-//  MeshProxy.h
-//  libraries/model/src/model/
-//
-//  Created by Seth Alves on 2017-1-27.
-//  Copyright 2017 High Fidelity, Inc.
-//
-//  Distributed under the Apache License, Version 2.0.
-//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
-//
-
-#ifndef hifi_MeshProxy_h
-#define hifi_MeshProxy_h
-
-#include <QScriptEngine>
-#include <QScriptValueIterator>
-#include <QtScript/QScriptValue>
-
-#include <model/Geometry.h>
-
-using MeshPointer = std::shared_ptr<model::Mesh>;
-
-class MeshProxy : public QObject {
-    Q_OBJECT
-
-public:
-    MeshProxy(MeshPointer mesh) : _mesh(mesh) {}
-    ~MeshProxy() {}
-
-    MeshPointer getMeshPointer() const { return _mesh; }
-
-    Q_INVOKABLE int getNumVertices() const { return (int)_mesh->getNumVertices(); }
-    Q_INVOKABLE glm::vec3 getPos3(int index) const { return _mesh->getPos3(index); }
-
-
-protected:
-    MeshPointer _mesh;
-};
-
-Q_DECLARE_METATYPE(MeshProxy*);
-
-class MeshProxyList : public QList<MeshProxy*> {}; // typedef and using fight with the Qt macros/templates, do this instead
-Q_DECLARE_METATYPE(MeshProxyList);
-
-
-QScriptValue meshToScriptValue(QScriptEngine* engine, MeshProxy* const &in);
-void meshFromScriptValue(const QScriptValue& value, MeshProxy* &out);
-
-QScriptValue meshesToScriptValue(QScriptEngine* engine, const MeshProxyList &in);
-void meshesFromScriptValue(const QScriptValue& value, MeshProxyList &out);
-
-#endif // hifi_MeshProxy_h
diff --git a/libraries/model-networking/src/model-networking/SimpleMeshProxy.cpp b/libraries/model-networking/src/model-networking/SimpleMeshProxy.cpp
new file mode 100644
index 0000000000..40b30154bf
--- /dev/null
+++ b/libraries/model-networking/src/model-networking/SimpleMeshProxy.cpp
@@ -0,0 +1,27 @@
+//
+//  MeshProxy.cpp
+//  libraries/model/src/model/
+//
+//  Created by Seth Alves on 2017-3-22.
+//  Copyright 2017 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+#include "SimpleMeshProxy.h"
+
+#include <model/Geometry.h>
+
+MeshPointer SimpleMeshProxy::getMeshPointer() const {
+    return _mesh;
+}
+
+int SimpleMeshProxy::getNumVertices() const {
+    return (int)_mesh->getNumVertices();
+}
+
+glm::vec3 SimpleMeshProxy::getPos3(int index) const {
+    return _mesh->getPos3(index);
+}
+
diff --git a/libraries/model-networking/src/model-networking/SimpleMeshProxy.h b/libraries/model-networking/src/model-networking/SimpleMeshProxy.h
new file mode 100644
index 0000000000..b82e501673
--- /dev/null
+++ b/libraries/model-networking/src/model-networking/SimpleMeshProxy.h
@@ -0,0 +1,36 @@
+//
+//  MeshProxy.h
+//  libraries/model/src/model/
+//
+//  Created by Seth Alves on 2017-1-27.
+//  Copyright 2017 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+#ifndef hifi_SimpleMeshProxy_h
+#define hifi_SimpleMeshProxy_h
+
+#include <QScriptEngine>
+#include <QScriptValueIterator>
+#include <QtScript/QScriptValue>
+
+#include <RegisteredMetaTypes.h>
+
+class SimpleMeshProxy : public MeshProxy {
+public:
+    SimpleMeshProxy(const MeshPointer& mesh) : _mesh(mesh) { }
+
+    MeshPointer getMeshPointer() const override;
+
+    int getNumVertices() const override;
+
+    glm::vec3 getPos3(int index) const override;
+
+
+protected:
+    const MeshPointer _mesh;
+};
+
+#endif // hifi_SimpleMeshProxy_h
diff --git a/libraries/model/src/model/Forward.h b/libraries/model/src/model/Forward.h
new file mode 100644
index 0000000000..362eabb454
--- /dev/null
+++ b/libraries/model/src/model/Forward.h
@@ -0,0 +1,19 @@
+//
+//  Geometry.h
+//  libraries/model/src/model
+//
+//  Created by Sam Gateau on 12/5/2014.
+//  Copyright 2014 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+#ifndef hifi_model_Forward_h
+#define hifi_model_Forward_h
+
+namespace model {
+    class Mesh;
+    using MeshPointer = std::shared_ptr<Mesh>;
+}
+
+#endif
diff --git a/libraries/script-engine/src/ModelScriptingInterface.cpp b/libraries/script-engine/src/ModelScriptingInterface.cpp
index f56312568e..762d9ffb29 100644
--- a/libraries/script-engine/src/ModelScriptingInterface.cpp
+++ b/libraries/script-engine/src/ModelScriptingInterface.cpp
@@ -9,17 +9,17 @@
 //  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
 //
 
+#include "ModelScriptingInterface.h"
 #include <QScriptEngine>
 #include <QScriptValueIterator>
 #include <QtScript/QScriptValue>
-#include <model-networking/MeshFace.h>
+#include <model-networking/SimpleMeshProxy.h>
 #include "ScriptEngine.h"
 #include "ScriptEngineLogging.h"
-#include "ModelScriptingInterface.h"
 #include "OBJWriter.h"
 
 ModelScriptingInterface::ModelScriptingInterface(QObject* parent) : QObject(parent) {
-    _modelScriptEngine = qobject_cast<ScriptEngine*>(parent);
+    _modelScriptEngine = qobject_cast<QScriptEngine*>(parent);
 
     qScriptRegisterSequenceMetaType<QList<MeshProxy*>>(_modelScriptEngine);
     qScriptRegisterMetaType(_modelScriptEngine, meshFaceToScriptValue, meshFaceFromScriptValue);
@@ -118,7 +118,7 @@ QScriptValue ModelScriptingInterface::appendMeshes(MeshProxyList in) {
                                                           (gpu::Byte*) parts.data()), gpu::Element::PART_DRAWCALL));
 
 
-    MeshProxy* resultProxy = new MeshProxy(result);
+    MeshProxy* resultProxy = new SimpleMeshProxy(result);
     return meshToScriptValue(_modelScriptEngine, resultProxy);
 }
 
@@ -134,7 +134,7 @@ QScriptValue ModelScriptingInterface::transformMesh(glm::mat4 transform, MeshPro
     model::MeshPointer result = mesh->map([&](glm::vec3 position){ return glm::vec3(transform * glm::vec4(position, 1.0f)); },
                                           [&](glm::vec3 normal){ return glm::vec3(transform * glm::vec4(normal, 0.0f)); },
                                           [&](uint32_t index){ return index; });
-    MeshProxy* resultProxy = new MeshProxy(result);
+    MeshProxy* resultProxy = new SimpleMeshProxy(result);
     return meshToScriptValue(_modelScriptEngine, resultProxy);
 }
 
@@ -188,6 +188,6 @@ QScriptValue ModelScriptingInterface::newMesh(const QVector<glm::vec3>& vertices
 
 
 
-    MeshProxy* meshProxy = new MeshProxy(mesh);
+    MeshProxy* meshProxy = new SimpleMeshProxy(mesh);
     return meshToScriptValue(_modelScriptEngine, meshProxy);
 }
diff --git a/libraries/script-engine/src/ModelScriptingInterface.h b/libraries/script-engine/src/ModelScriptingInterface.h
index d899f532d8..ba23623acf 100644
--- a/libraries/script-engine/src/ModelScriptingInterface.h
+++ b/libraries/script-engine/src/ModelScriptingInterface.h
@@ -9,19 +9,13 @@
 //  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
 //
 
-
 #ifndef hifi_ModelScriptingInterface_h
 #define hifi_ModelScriptingInterface_h
 
 #include <QtCore/QObject>
-#include <QScriptValue>
-#include <OBJWriter.h>
-#include <model/Geometry.h>
-#include <model-networking/MeshProxy.h>
-#include <model-networking/MeshFace.h>
 
-using MeshPointer = std::shared_ptr<model::Mesh>;
-class ScriptEngine;
+#include <RegisteredMetaTypes.h>
+class QScriptEngine;
 
 class ModelScriptingInterface : public QObject {
     Q_OBJECT
@@ -37,7 +31,7 @@ public:
                                      const QVector<MeshFace>& faces);
 
 private:
-    ScriptEngine* _modelScriptEngine { nullptr };
+    QScriptEngine* _modelScriptEngine { nullptr };
 };
 
 #endif // hifi_ModelScriptingInterface_h
diff --git a/libraries/shared/src/GLMHelpers.h b/libraries/shared/src/GLMHelpers.h
index ef92552d1f..3386ea2c22 100644
--- a/libraries/shared/src/GLMHelpers.h
+++ b/libraries/shared/src/GLMHelpers.h
@@ -17,6 +17,7 @@
 #include <glm/glm.hpp>
 #include <glm/gtc/quaternion.hpp>
 #include <glm/gtx/quaternion.hpp>
+#include <glm/gtx/component_wise.hpp>
 
 // Bring the most commonly used GLM types into the default namespace
 using glm::ivec2;
diff --git a/libraries/shared/src/RegisteredMetaTypes.cpp b/libraries/shared/src/RegisteredMetaTypes.cpp
index 70067b93f3..1e5fe23458 100644
--- a/libraries/shared/src/RegisteredMetaTypes.cpp
+++ b/libraries/shared/src/RegisteredMetaTypes.cpp
@@ -9,6 +9,10 @@
 //  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
 //
 
+#include "RegisteredMetaTypes.h"
+
+#include <glm/gtc/quaternion.hpp>
+
 #include <QtCore/QUrl>
 #include <QtCore/QUuid>
 #include <QtCore/QRect>
@@ -17,10 +21,9 @@
 #include <QtGui/QVector2D>
 #include <QtGui/QVector3D>
 #include <QtGui/QQuaternion>
-#include <glm/gtc/quaternion.hpp>
-#include <QAbstractSocket>
-
-#include "RegisteredMetaTypes.h"
+#include <QtNetwork/QAbstractSocket>
+#include <QtScript/QScriptValue>
+#include <QtScript/QScriptValueIterator>
 
 int vec4MetaTypeId = qRegisterMetaType<glm::vec4>();
 int vec3MetaTypeId = qRegisterMetaType<glm::vec3>();
@@ -796,3 +799,101 @@ void qSizeFFromScriptValue(const QScriptValue& object, QSizeF& qSizeF) {
     qSizeF.setWidth(object.property("width").toVariant().toFloat());
     qSizeF.setHeight(object.property("height").toVariant().toFloat());
 }
+
+AnimationDetails::AnimationDetails() :
+    role(), url(), fps(0.0f), priority(0.0f), loop(false), hold(false),
+    startAutomatically(false), firstFrame(0.0f), lastFrame(0.0f), running(false), currentFrame(0.0f) {
+}
+
+AnimationDetails::AnimationDetails(QString role, QUrl url, float fps, float priority, bool loop,
+    bool hold, bool startAutomatically, float firstFrame, float lastFrame, bool running, float currentFrame) :
+    role(role), url(url), fps(fps), priority(priority), loop(loop), hold(hold),
+    startAutomatically(startAutomatically), firstFrame(firstFrame), lastFrame(lastFrame),
+    running(running), currentFrame(currentFrame) {
+}
+
+
+QScriptValue animationDetailsToScriptValue(QScriptEngine* engine, const AnimationDetails& details) {
+    QScriptValue obj = engine->newObject();
+    obj.setProperty("role", details.role);
+    obj.setProperty("url", details.url.toString());
+    obj.setProperty("fps", details.fps);
+    obj.setProperty("priority", details.priority);
+    obj.setProperty("loop", details.loop);
+    obj.setProperty("hold", details.hold);
+    obj.setProperty("startAutomatically", details.startAutomatically);
+    obj.setProperty("firstFrame", details.firstFrame);
+    obj.setProperty("lastFrame", details.lastFrame);
+    obj.setProperty("running", details.running);
+    obj.setProperty("currentFrame", details.currentFrame);
+    return obj;
+}
+
+void animationDetailsFromScriptValue(const QScriptValue& object, AnimationDetails& details) {
+    // nothing for now...
+}
+
+QScriptValue meshToScriptValue(QScriptEngine* engine, MeshProxy* const &in) {
+    return engine->newQObject(in, QScriptEngine::QtOwnership,
+        QScriptEngine::ExcludeDeleteLater | QScriptEngine::ExcludeChildObjects);
+}
+
+void meshFromScriptValue(const QScriptValue& value, MeshProxy* &out) {
+    out = qobject_cast<MeshProxy*>(value.toQObject());
+}
+
+QScriptValue meshesToScriptValue(QScriptEngine* engine, const MeshProxyList &in) {
+    // QScriptValueList result;
+    QScriptValue result = engine->newArray();
+    int i = 0;
+    foreach(MeshProxy* const meshProxy, in) {
+        result.setProperty(i++, meshToScriptValue(engine, meshProxy));
+    }
+    return result;
+}
+
+void meshesFromScriptValue(const QScriptValue& value, MeshProxyList &out) {
+    QScriptValueIterator itr(value);
+
+    qDebug() << "in meshesFromScriptValue, value.length =" << value.property("length").toInt32();
+
+    while (itr.hasNext()) {
+        itr.next();
+        MeshProxy* meshProxy = qscriptvalue_cast<MeshProxyList::value_type>(itr.value());
+        if (meshProxy) {
+            out.append(meshProxy);
+        } else {
+            qDebug() << "null meshProxy";
+        }
+    }
+}
+
+
+QScriptValue meshFaceToScriptValue(QScriptEngine* engine, const MeshFace &meshFace) {
+    QScriptValue obj = engine->newObject();
+    obj.setProperty("vertices", qVectorIntToScriptValue(engine, meshFace.vertexIndices));
+    return obj;
+}
+
+void meshFaceFromScriptValue(const QScriptValue &object, MeshFace& meshFaceResult) {
+    qVectorIntFromScriptValue(object.property("vertices"), meshFaceResult.vertexIndices);
+}
+
+QScriptValue qVectorMeshFaceToScriptValue(QScriptEngine* engine, const QVector<MeshFace>& vector) {
+    QScriptValue array = engine->newArray();
+    for (int i = 0; i < vector.size(); i++) {
+        array.setProperty(i, meshFaceToScriptValue(engine, vector.at(i)));
+    }
+    return array;
+}
+
+void qVectorMeshFaceFromScriptValue(const QScriptValue& array, QVector<MeshFace>& result) {
+    int length = array.property("length").toInteger();
+    result.clear();
+
+    for (int i = 0; i < length; i++) {
+        MeshFace meshFace = MeshFace();
+        meshFaceFromScriptValue(array.property(i), meshFace);
+        result << meshFace;
+    }
+}
diff --git a/libraries/shared/src/RegisteredMetaTypes.h b/libraries/shared/src/RegisteredMetaTypes.h
index 8a15f62eed..dd37cb3410 100644
--- a/libraries/shared/src/RegisteredMetaTypes.h
+++ b/libraries/shared/src/RegisteredMetaTypes.h
@@ -14,6 +14,7 @@
 
 #include <QtScript/QScriptEngine>
 #include <QtCore/QUuid>
+#include <QtCore/QUrl>
 
 #include <glm/glm.hpp>
 #include <glm/gtc/quaternion.hpp>
@@ -167,4 +168,73 @@ void quuidFromScriptValue(const QScriptValue& object, QUuid& uuid);
 QScriptValue qSizeFToScriptValue(QScriptEngine* engine, const QSizeF& qSizeF);
 void qSizeFFromScriptValue(const QScriptValue& object, QSizeF& qSizeF);
 
+class AnimationDetails {
+public:
+    AnimationDetails();
+    AnimationDetails(QString role, QUrl url, float fps, float priority, bool loop,
+        bool hold, bool startAutomatically, float firstFrame, float lastFrame, bool running, float currentFrame);
+
+    QString role;
+    QUrl url;
+    float fps;
+    float priority;
+    bool loop;
+    bool hold;
+    bool startAutomatically;
+    float firstFrame;
+    float lastFrame;
+    bool running;
+    float currentFrame;
+};
+Q_DECLARE_METATYPE(AnimationDetails);
+QScriptValue animationDetailsToScriptValue(QScriptEngine* engine, const AnimationDetails& event);
+void animationDetailsFromScriptValue(const QScriptValue& object, AnimationDetails& event);
+
+namespace model {
+    class Mesh;
+}
+
+using MeshPointer = std::shared_ptr<model::Mesh>;
+
+
+class MeshProxy : public QObject {
+    Q_OBJECT
+
+public:
+    virtual MeshPointer getMeshPointer() const = 0;
+    Q_INVOKABLE virtual int getNumVertices() const = 0;
+    Q_INVOKABLE virtual glm::vec3 getPos3(int index) const = 0;
+};
+
+Q_DECLARE_METATYPE(MeshProxy*);
+
+class MeshProxyList : public QList<MeshProxy*> {}; // typedef and using fight with the Qt macros/templates, do this instead
+Q_DECLARE_METATYPE(MeshProxyList);
+
+
+QScriptValue meshToScriptValue(QScriptEngine* engine, MeshProxy* const &in);
+void meshFromScriptValue(const QScriptValue& value, MeshProxy* &out);
+
+QScriptValue meshesToScriptValue(QScriptEngine* engine, const MeshProxyList &in);
+void meshesFromScriptValue(const QScriptValue& value, MeshProxyList &out);
+
+class MeshFace {
+
+public:
+    MeshFace() {}
+    ~MeshFace() {}
+
+    QVector<uint32_t> vertexIndices;
+    // TODO -- material...
+};
+
+Q_DECLARE_METATYPE(MeshFace)
+Q_DECLARE_METATYPE(QVector<MeshFace>)
+
+QScriptValue meshFaceToScriptValue(QScriptEngine* engine, const MeshFace &meshFace);
+void meshFaceFromScriptValue(const QScriptValue &object, MeshFace& meshFaceResult);
+QScriptValue qVectorMeshFaceToScriptValue(QScriptEngine* engine, const QVector<MeshFace>& vector);
+void qVectorMeshFaceFromScriptValue(const QScriptValue& array, QVector<MeshFace>& result);
+
+
 #endif // hifi_RegisteredMetaTypes_h
diff --git a/libraries/animation/src/AnimationLoop.cpp b/libraries/shared/src/shared/types/AnimationLoop.cpp
similarity index 95%
rename from libraries/animation/src/AnimationLoop.cpp
rename to libraries/shared/src/shared/types/AnimationLoop.cpp
index 3d7bca863f..f77bd8bb2a 100644
--- a/libraries/animation/src/AnimationLoop.cpp
+++ b/libraries/shared/src/shared/types/AnimationLoop.cpp
@@ -9,11 +9,13 @@
 //  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
 //
 
-#include <NumericalConstants.h>
-
-#include "AnimationCache.h"
 #include "AnimationLoop.h"
 
+#include "../../NumericalConstants.h"
+#include "../../SharedUtil.h"
+#include "../../GLMHelpers.h"
+#include "../../RegisteredMetaTypes.h"
+
 const float AnimationLoop::MAXIMUM_POSSIBLE_FRAME = 100000.0f;
 
 AnimationLoop::AnimationLoop() :
@@ -62,7 +64,7 @@ AnimationLoop::AnimationLoop(float fps, bool loop, bool hold, bool startAutomati
 {
 }
 
-void AnimationLoop::simulateAtTime(quint64 now) {
+void AnimationLoop::simulateAtTime(uint64_t now) {
     float deltaTime = (float)(now - _lastSimulated) / (float)USECS_PER_SECOND;
     _lastSimulated = now;
     simulate(deltaTime);
diff --git a/libraries/animation/src/AnimationLoop.h b/libraries/shared/src/shared/types/AnimationLoop.h
similarity index 93%
rename from libraries/animation/src/AnimationLoop.h
rename to libraries/shared/src/shared/types/AnimationLoop.h
index 6adfbf35e2..33434209e7 100644
--- a/libraries/animation/src/AnimationLoop.h
+++ b/libraries/shared/src/shared/types/AnimationLoop.h
@@ -14,6 +14,9 @@
 
 class AnimationDetails;
 
+#include <stdint.h>
+#include <glm/glm.hpp>
+
 class AnimationLoop {
 public:
     static const float MAXIMUM_POSSIBLE_FRAME;
@@ -58,7 +61,7 @@ public:
     void stop() { setRunning(false); }
     void simulate(float deltaTime); /// call this with deltaTime if you as the caller are managing the delta time between calls
 
-    void simulateAtTime(quint64 now); /// call this with "now" if you want the animationLoop to handle delta times
+    void simulateAtTime(uint64_t now); /// call this with "now" if you want the animationLoop to handle delta times
 
 private:
     float _fps;
@@ -71,7 +74,7 @@ private:
     float _currentFrame;
     float _maxFrameIndexHint;
     bool _resetOnRunning;
-    quint64 _lastSimulated;
+    uint64_t _lastSimulated;
 };
 
 #endif // hifi_AnimationLoop_h
diff --git a/tests/render-perf/src/main.cpp b/tests/render-perf/src/main.cpp
index 52592cd202..552dc3d270 100644
--- a/tests/render-perf/src/main.cpp
+++ b/tests/render-perf/src/main.cpp
@@ -47,6 +47,7 @@
 #include <gpu/gl/GLTexture.h>
 #include <gpu/StandardShaderLib.h>
 
+#include <AnimationCache.h>
 #include <SimpleEntitySimulation.h>
 #include <EntityDynamicInterface.h>
 #include <EntityDynamicFactoryInterface.h>