Provide a means to specify a fallback for when we fail to load a model. Also

added missing associated resources for default model.  Closes #1960.

interface/resources/meshes/defaultAvatar_body.fst

@@ -0,0 +1,18 @@
+scale=130
+joint = jointRoot = jointRoot
+joint = jointLean = jointSpine
+joint = jointNeck = jointNeck
+joint = jointHead = jointHeadtop
+joint = joint_L_shoulder = joint_L_shoulder
+freeJoint = joint_L_arm
+freeJoint = joint_L_elbow
+joint = jointLeftHand = joint_L_hand
+joint = joint_R_shoulder = joint_R_shoulder
+freeJoint = joint_R_arm
+freeJoint = joint_R_elbow
+joint = jointRightHand = joint_R_hand
+
+
+
+
+

interface/resources/meshes/defaultAvatar_head.fst

@@ -0,0 +1,45 @@
+# faceshift target mapping file
+name= defaultAvatar_head
+filename=../../../Avatars/Jelly/jellyrob_blue.fbx
+texdir=../../../Avatars/Jelly
+scale=80
+rx=0
+ry=0
+rz=0
+tx=0
+ty=0
+tz=0
+joint = jointNeck = jointNeck
+bs = BrowsD_L = Leye1.BrowsD_L = 0.97
+bs = BrowsD_R = Reye1.BrowsD_R = 1
+bs = CheekSquint_L = Leye1.CheekSquint_L = 1
+bs = CheekSquint_R = Reye1.CheekSquint_R = 1
+bs = EyeBlink_L = Leye1.EyeBlink_L = 1
+bs = EyeBlink_R = Reye1.EyeBlink_R = 1
+bs = EyeDown_L = Leye1.EyeDown_L = 1
+bs = EyeDown_R = Reye1.EyeDown_R = 0.99
+bs = EyeIn_L = Leye1.EyeIn_L = 0.92
+bs = EyeIn_R = Reye1.EyeIn_R = 1
+bs = EyeOpen_L = Leye1.EyeOpen_L = 1
+bs = EyeOpen_R = Reye1.EyeOpen_R = 1
+bs = EyeOut_L = Leye1.EyeOut_L = 0.99
+bs = EyeOut_R = Reye1.EyeOut_R = 1
+bs = EyeUp_L = Leye1.EyeUp_L = 0.93
+bs = EyeUp_R = Reye1.EyeUp_R = 1
+bs = JawOpen = Mouth.JawOpen = 1
+bs = LipsFunnel = Mouth.LipsFunnel = 1
+bs = LipsLowerDown = Mouth.LipsLowerDown = 1
+bs = LipsPucker = Mouth.LipsPucker = 1
+bs = LipsStretch_L = Mouth.LipsStretch_L = 0.96
+bs = LipsStretch_R = Mouth.LipsStretch_R = 1
+bs = LipsUpperUp = Mouth.LipsUpperUp = 1
+bs = MouthDimple_L = Mouth.MouthDimple_L = 1
+bs = MouthDimple_R = Mouth.MouthDimple_R = 1
+bs = MouthFrown_L = Mouth.MouthFrown_L = 1
+bs = MouthFrown_R = Mouth.MouthFrown_R = 1
+bs = MouthLeft = Mouth.MouthLeft = 1
+bs = MouthRight = Mouth.MouthRight = 1
+bs = MouthSmile_L = Mouth.MouthSmile_L = 1
+bs = MouthSmile_R = Mouth.MouthSmile_R = 1
+bs = Puff = Mouth.Puff = 1
+bs = Sneer = Mouth.Sneer = 1

interface/src/avatar/Avatar.cpp

@@ -338,12 +338,14 @@ bool Avatar::findSphereCollision(const glm::vec3& sphereCenter, float sphereRadi
 
 void Avatar::setFaceModelURL(const QUrl &faceModelURL) {
     AvatarData::setFaceModelURL(faceModelURL);
-    _head.getFaceModel().setURL(_faceModelURL);
+    const QUrl DEFAULT_FACE_MODEL_URL = QUrl::fromLocalFile("resources/meshes/defaultAvatar_head.fbx");
+    _head.getFaceModel().setURL(_faceModelURL, DEFAULT_FACE_MODEL_URL);
 }
 
 void Avatar::setSkeletonModelURL(const QUrl &skeletonModelURL) {
     AvatarData::setSkeletonModelURL(skeletonModelURL);
-    _skeletonModel.setURL(_skeletonModelURL);
+    const QUrl DEFAULT_SKELETON_MODEL_URL = QUrl::fromLocalFile("resources/meshes/defaultAvatar_body.fbx");
+    _skeletonModel.setURL(_skeletonModelURL, DEFAULT_SKELETON_MODEL_URL);
 }
 
 int Avatar::parseData(const QByteArray& packet) {

interface/src/renderer/GeometryCache.cpp

@@ -290,19 +290,24 @@ void GeometryCache::renderGrid(int xDivisions, int yDivisions) {
     buffer.release();
 }
 
-QSharedPointer<NetworkGeometry> GeometryCache::getGeometry(const QUrl& url) {
+QSharedPointer<NetworkGeometry> GeometryCache::getGeometry(const QUrl& url, const QUrl& fallback) {
+    if (!url.isValid() && fallback.isValid()) {
+        return getGeometry(fallback);
+    }
     QSharedPointer<NetworkGeometry> geometry = _networkGeometry.value(url);
     if (geometry.isNull()) {
-        geometry = QSharedPointer<NetworkGeometry>(new NetworkGeometry(url));
+        geometry = QSharedPointer<NetworkGeometry>(new NetworkGeometry(url, fallback.isValid() ?
+            getGeometry(fallback) : QSharedPointer<NetworkGeometry>()));
         _networkGeometry.insert(url, geometry);
     }
     return geometry;
 }
 
-NetworkGeometry::NetworkGeometry(const QUrl& url) :
+NetworkGeometry::NetworkGeometry(const QUrl& url, const QSharedPointer<NetworkGeometry>& fallback) :
     _modelRequest(url),
     _modelReply(NULL),
     _mappingReply(NULL),
+    _fallback(fallback),
     _attempts(0)
 {
     if (!url.isValid()) {
@@ -369,18 +374,37 @@ void NetworkGeometry::makeModelRequest() {
 void NetworkGeometry::handleModelReplyError() {
     QDebug debug = qDebug() << _modelReply->errorString();
     
+    QNetworkReply::NetworkError error = _modelReply->error();
     _modelReply->disconnect(this);
     _modelReply->deleteLater();
     _modelReply = NULL;
     
+    // retry for certain types of failures
+    switch (error) {
+        case QNetworkReply::RemoteHostClosedError:
+        case QNetworkReply::TimeoutError:
+        case QNetworkReply::TemporaryNetworkFailureError:
+        case QNetworkReply::ProxyConnectionClosedError:
+        case QNetworkReply::ProxyTimeoutError:
+        case QNetworkReply::UnknownNetworkError:
+        case QNetworkReply::UnknownProxyError:
+        case QNetworkReply::UnknownContentError:
+        case QNetworkReply::ProtocolFailure: {        
             // retry with increasing delays
             const int MAX_ATTEMPTS = 8;
             const int BASE_DELAY_MS = 1000;
             if (++_attempts < MAX_ATTEMPTS) {
                 QTimer::singleShot(BASE_DELAY_MS * (int)pow(2.0, _attempts), this, SLOT(makeModelRequest()));
                 debug << " -- retrying...";
-        
+                return;
             }
+            // fall through to final failure
+        }    
+        default:
+            maybeLoadFallback();
+            break;
+    }
+    
 }
 
 void NetworkGeometry::handleMappingReplyError() {
@@ -415,6 +439,7 @@ void NetworkGeometry::maybeReadModelWithMapping() {
         
     } catch (const QString& error) {
         qDebug() << "Error reading " << url << ": " << error;
+        maybeLoadFallback();
         return;
     }
     
@@ -507,6 +532,24 @@ void NetworkGeometry::maybeReadModelWithMapping() {
         
         _meshes.append(networkMesh);
     }
+    
+    emit loaded();
+}
+
+void NetworkGeometry::loadFallback() {
+    _geometry = _fallback->_geometry;
+    _meshes = _fallback->_meshes;
+    emit loaded();
+}
+
+void NetworkGeometry::maybeLoadFallback() {
+    if (_fallback) {
+        if (_fallback->isLoaded()) {
+            loadFallback();
+        } else {
+            connect(_fallback.data(), SIGNAL(loaded()), SLOT(loadFallback()));
+        }
+    }
 }
 
 bool NetworkMeshPart::isTranslucent() const {

interface/src/renderer/GeometryCache.h

@@ -37,7 +37,8 @@ public:
     void renderGrid(int xDivisions, int yDivisions);
 
     /// Loads geometry from the specified URL.
-    QSharedPointer<NetworkGeometry> getGeometry(const QUrl& url);
+    /// \param fallback a fallback URL to load if the desired one is unavailable
+    QSharedPointer<NetworkGeometry> getGeometry(const QUrl& url, const QUrl& fallback = QUrl());
     
 private:
     
@@ -58,7 +59,7 @@ class NetworkGeometry : public QObject {
 
 public:
     
-    NetworkGeometry(const QUrl& url);
+    NetworkGeometry(const QUrl& url, const QSharedPointer<NetworkGeometry>& fallback);
     ~NetworkGeometry();
 
     bool isLoaded() const { return !_geometry.joints.isEmpty(); }
@@ -69,18 +70,26 @@ public:
     /// Returns the average color of all meshes in the geometry.
     glm::vec4 computeAverageColor() const;
 
+signals:
+
+    void loaded();
+
 private slots:
     
     void makeModelRequest();
     void handleModelReplyError();    
     void handleMappingReplyError();
     void maybeReadModelWithMapping();
+    void loadFallback();
     
 private:
     
+    void maybeLoadFallback();
+    
     QNetworkRequest _modelRequest;
     QNetworkReply* _modelReply;
     QNetworkReply* _mappingReply;
+    QSharedPointer<NetworkGeometry> _fallback;
     
     int _attempts;
     FBXGeometry _geometry;

interface/src/renderer/Model.cpp

@@ -390,7 +390,7 @@ float Model::getRightArmLength() const {
     return getLimbLength(getRightHandJointIndex());
 }
 
-void Model::setURL(const QUrl& url) {
+void Model::setURL(const QUrl& url, const QUrl& fallback) {
     // don't recreate the geometry if it's the same URL
     if (_url == url) {
         return;
@@ -401,7 +401,7 @@ void Model::setURL(const QUrl& url) {
     deleteGeometry();
     _dilatedTextures.clear();
     
-    _geometry = Application::getInstance()->getGeometryCache()->getGeometry(url);
+    _geometry = Application::getInstance()->getGeometryCache()->getGeometry(url, fallback);
 }
 
 glm::vec4 Model::computeAverageColor() const {

interface/src/renderer/Model.h

@@ -51,7 +51,7 @@ public:
     void simulate(float deltaTime);
     bool render(float alpha);
     
-    Q_INVOKABLE void setURL(const QUrl& url);
+    Q_INVOKABLE void setURL(const QUrl& url, const QUrl& fallback = QUrl());
     const QUrl& getURL() const { return _url; }
     
     /// Returns the extents of the model in its bind pose.