Merge branch 'master' into 20872

assignment-client/src/audio/AudioMixer.cpp

@@ -19,6 +19,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <thread>
 
 #ifdef _WIN32
 #include <math.h>
@@ -577,15 +578,15 @@ void AudioMixer::domainSettingsRequestComplete() {
 void AudioMixer::broadcastMixes() {
     auto nodeList = DependencyManager::get<NodeList>();
 
-    int64_t nextFrame = 0;
-    QElapsedTimer timer;
-    timer.start();
-
-    int64_t usecToSleep = AudioConstants::NETWORK_FRAME_USECS;
+    auto nextFrameTimestamp = p_high_resolution_clock::now();
+    auto timeToSleep = std::chrono::microseconds(0);
 
     const int TRAILING_AVERAGE_FRAMES = 100;
     int framesSinceCutoffEvent = TRAILING_AVERAGE_FRAMES;
 
+    int currentFrame { 1 };
+    int numFramesPerSecond { (int) ceil(AudioConstants::NETWORK_FRAMES_PER_SEC) };
+
     while (!_isFinished) {
         const float STRUGGLE_TRIGGER_SLEEP_PERCENTAGE_THRESHOLD = 0.10f;
         const float BACK_OFF_TRIGGER_SLEEP_PERCENTAGE_THRESHOLD = 0.20f;
@@ -595,12 +596,12 @@ void AudioMixer::broadcastMixes() {
         const float CURRENT_FRAME_RATIO = 1.0f / TRAILING_AVERAGE_FRAMES;
         const float PREVIOUS_FRAMES_RATIO = 1.0f - CURRENT_FRAME_RATIO;
 
-        if (usecToSleep < 0) {
-            usecToSleep = 0;
+        if (timeToSleep.count() < 0) {
+            timeToSleep = std::chrono::microseconds(0);
         }
 
         _trailingSleepRatio = (PREVIOUS_FRAMES_RATIO * _trailingSleepRatio)
-            + (usecToSleep * CURRENT_FRAME_RATIO / (float) AudioConstants::NETWORK_FRAME_USECS);
+            + (timeToSleep.count() * CURRENT_FRAME_RATIO / (float) AudioConstants::NETWORK_FRAME_USECS);
 
         float lastCutoffRatio = _performanceThrottlingRatio;
         bool hasRatioChanged = false;
@@ -694,10 +695,11 @@ void AudioMixer::broadcastMixes() {
                     nodeList->sendPacket(std::move(mixPacket), *node);
                     nodeData->incrementOutgoingMixedAudioSequenceNumber();
 
-                    static const int FRAMES_PER_SECOND = int(ceilf(1.0f / AudioConstants::NETWORK_FRAME_SECS));
-
                     // send an audio stream stats packet to the client approximately every second
-                    if (nextFrame % FRAMES_PER_SECOND == 0) {
+                    ++currentFrame;
+                    currentFrame %= numFramesPerSecond;
+
+                    if (nodeData->shouldSendStats(currentFrame)) {
                         nodeData->sendAudioStreamStatsPackets(node);
                     }
 
@@ -718,11 +720,14 @@ void AudioMixer::broadcastMixes() {
             break;
         }
 
-        usecToSleep = (++nextFrame * AudioConstants::NETWORK_FRAME_USECS) - (timer.nsecsElapsed() / 1000);
+        // push the next frame timestamp to when we should send the next
+        nextFrameTimestamp += std::chrono::microseconds(AudioConstants::NETWORK_FRAME_USECS);
 
-        if (usecToSleep > 0) {
-            usleep(usecToSleep);
-        }
+        // sleep as long as we need until next frame, if we can
+        auto now = p_high_resolution_clock::now();
+        timeToSleep = std::chrono::duration_cast<std::chrono::microseconds>(nextFrameTimestamp - now);
+
+        std::this_thread::sleep_for(timeToSleep);
     }
 }
 

assignment-client/src/audio/AudioMixerClientData.cpp

@@ -9,6 +9,8 @@
 //  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
 //
 
+#include <random>
+
 #include <QtCore/QDebug>
 #include <QtCore/QJsonArray>
 
@@ -26,7 +28,14 @@ AudioMixerClientData::AudioMixerClientData(const QUuid& nodeID) :
     _outgoingMixedAudioSequenceNumber(0),
     _downstreamAudioStreamStats()
 {
+    // of the ~94 blocks in a second of audio sent from the AudioMixer, pick a random one to send out a stats packet on
+    // this ensures we send out stats to this client around every second
+    // but do not send all of the stats packets out at the same time
+    std::random_device randomDevice;
+    std::mt19937 numberGenerator { randomDevice() };
+    std::uniform_int_distribution<> distribution { 1, (int) ceil(1.0f / AudioConstants::NETWORK_FRAME_SECS) };
 
+    _frameToSendStats = distribution(numberGenerator);
 }
 
 AvatarAudioStream* AudioMixerClientData::getAvatarAudioStream() {
@@ -180,6 +189,10 @@ void AudioMixerClientData::checkBuffersBeforeFrameSend() {
     }
 }
 
+bool AudioMixerClientData::shouldSendStats(int frameNumber) {
+    return frameNumber == _frameToSendStats;
+}
+
 void AudioMixerClientData::sendAudioStreamStatsPackets(const SharedNodePointer& destinationNode) {
 
     auto nodeList = DependencyManager::get<NodeList>();

assignment-client/src/audio/AudioMixerClientData.h

@@ -58,6 +58,9 @@ public:
     void incrementOutgoingMixedAudioSequenceNumber() { _outgoingMixedAudioSequenceNumber++; }
     quint16 getOutgoingSequenceNumber() const { return _outgoingMixedAudioSequenceNumber; }
 
+    // uses randomization to have the AudioMixer send a stats packet to this node around every second
+    bool shouldSendStats(int frameNumber);
+
 signals:
     void injectorStreamFinished(const QUuid& streamIdentifier);
 
@@ -72,6 +75,8 @@ private:
     quint16 _outgoingMixedAudioSequenceNumber;
 
     AudioStreamStats _downstreamAudioStreamStats;
+
+    int _frameToSendStats { 0 };
 };
 
 #endif // hifi_AudioMixerClientData_h

assignment-client/src/avatars/AvatarMixer.cpp

@@ -36,14 +36,7 @@ const unsigned int AVATAR_DATA_SEND_INTERVAL_MSECS = (1.0f / (float) AVATAR_MIXE
 
 AvatarMixer::AvatarMixer(ReceivedMessage& message) :
     ThreadedAssignment(message),
-    _broadcastThread(),
-    _lastFrameTimestamp(QDateTime::currentMSecsSinceEpoch()),
-    _trailingSleepRatio(1.0f),
-    _performanceThrottlingRatio(0.0f),
-    _sumListeners(0),
-    _numStatFrames(0),
-    _sumBillboardPackets(0),
-    _sumIdentityPackets(0)
+    _broadcastThread()
 {
     // make sure we hear about node kills so we can tell the other nodes
     connect(DependencyManager::get<NodeList>().data(), &NodeList::nodeKilled, this, &AvatarMixer::nodeKilled);
@@ -51,7 +44,6 @@ AvatarMixer::AvatarMixer(ReceivedMessage& message) :
     auto& packetReceiver = DependencyManager::get<NodeList>()->getPacketReceiver();
     packetReceiver.registerListener(PacketType::AvatarData, this, "handleAvatarDataPacket");
     packetReceiver.registerListener(PacketType::AvatarIdentity, this, "handleAvatarIdentityPacket");
-    packetReceiver.registerListener(PacketType::AvatarBillboard, this, "handleAvatarBillboardPacket");
     packetReceiver.registerListener(PacketType::KillAvatar, this, "handleKillAvatarPacket");
 }
 
@@ -66,13 +58,18 @@ AvatarMixer::~AvatarMixer() {
 
 // An 80% chance of sending a identity packet within a 5 second interval.
 // assuming 60 htz update rate.
-const float BILLBOARD_AND_IDENTITY_SEND_PROBABILITY = 1.0f / 187.0f;
+const float IDENTITY_SEND_PROBABILITY = 1.0f / 187.0f;
 
 // NOTE: some additional optimizations to consider.
 //    1) use the view frustum to cull those avatars that are out of view. Since avatar data doesn't need to be present
 //       if the avatar is not in view or in the keyhole.
 void AvatarMixer::broadcastAvatarData() {
-    int idleTime = QDateTime::currentMSecsSinceEpoch() - _lastFrameTimestamp;
+    int idleTime = AVATAR_DATA_SEND_INTERVAL_MSECS;
+
+    if (_lastFrameTimestamp.time_since_epoch().count() > 0) {
+        auto idleDuration = p_high_resolution_clock::now() - _lastFrameTimestamp;
+        idleTime = std::chrono::duration_cast<std::chrono::microseconds>(idleDuration).count();
+    }
 
     ++_numStatFrames;
 
@@ -245,32 +242,13 @@ void AvatarMixer::broadcastAvatarData() {
                         return;
                     }
 
-                    // make sure we send out identity and billboard packets to and from new arrivals.
+                    // make sure we send out identity packets to and from new arrivals.
                     bool forceSend = !otherNodeData->checkAndSetHasReceivedFirstPacketsFrom(node->getUUID());
 
-                    // we will also force a send of billboard or identity packet
-                    // if either has changed in the last frame
-                    if (otherNodeData->getBillboardChangeTimestamp() > 0
-                        && (forceSend
-                            || otherNodeData->getBillboardChangeTimestamp() > _lastFrameTimestamp
-                            || distribution(generator) < BILLBOARD_AND_IDENTITY_SEND_PROBABILITY)) {
-
-                        QByteArray rfcUUID = otherNode->getUUID().toRfc4122();
-                        QByteArray billboard = otherNodeData->getAvatar().getBillboard();
-
-                        auto billboardPacket = NLPacket::create(PacketType::AvatarBillboard, rfcUUID.size() + billboard.size());
-                        billboardPacket->write(rfcUUID);
-                        billboardPacket->write(billboard);
-
-                        nodeList->sendPacket(std::move(billboardPacket), *node);
-
-                        ++_sumBillboardPackets;
-                    }
-
-                    if (otherNodeData->getIdentityChangeTimestamp() > 0
+                    if (otherNodeData->getIdentityChangeTimestamp().time_since_epoch().count() > 0
                         && (forceSend
                             || otherNodeData->getIdentityChangeTimestamp() > _lastFrameTimestamp
-                            || distribution(generator) < BILLBOARD_AND_IDENTITY_SEND_PROBABILITY)) {
+                            || distribution(generator) < IDENTITY_SEND_PROBABILITY)) {
 
                         QByteArray individualData = otherNodeData->getAvatar().identityByteArray();
 
@@ -385,7 +363,7 @@ void AvatarMixer::broadcastAvatarData() {
             otherAvatar.doneEncoding(false);
         });
 
-    _lastFrameTimestamp = QDateTime::currentMSecsSinceEpoch();
+    _lastFrameTimestamp = p_high_resolution_clock::now();
 }
 
 void AvatarMixer::nodeKilled(SharedNodePointer killedNode) {
@@ -438,26 +416,12 @@ void AvatarMixer::handleAvatarIdentityPacket(QSharedPointer<ReceivedMessage> mes
             // parse the identity packet and update the change timestamp if appropriate
             if (avatar.hasIdentityChangedAfterParsing(message->getMessage())) {
                 QMutexLocker nodeDataLocker(&nodeData->getMutex());
-                nodeData->setIdentityChangeTimestamp(QDateTime::currentMSecsSinceEpoch());
+                nodeData->flagIdentityChange();
             }
         }
     }
 }
 
-void AvatarMixer::handleAvatarBillboardPacket(QSharedPointer<ReceivedMessage> message, SharedNodePointer senderNode) {
-    AvatarMixerClientData* nodeData = dynamic_cast<AvatarMixerClientData*>(senderNode->getLinkedData());
-    if (nodeData) {
-        AvatarData& avatar = nodeData->getAvatar();
-
-        // parse the billboard packet and update the change timestamp if appropriate
-        if (avatar.hasBillboardChangedAfterParsing(message->getMessage())) {
-            QMutexLocker nodeDataLocker(&nodeData->getMutex());
-            nodeData->setBillboardChangeTimestamp(QDateTime::currentMSecsSinceEpoch());
-        }
-
-    }
-}
-
 void AvatarMixer::handleKillAvatarPacket(QSharedPointer<ReceivedMessage> message) {
     DependencyManager::get<NodeList>()->processKillNode(*message);
 }
@@ -466,7 +430,6 @@ void AvatarMixer::sendStatsPacket() {
     QJsonObject statsObject;
     statsObject["average_listeners_last_second"] = (float) _sumListeners / (float) _numStatFrames;
 
-    statsObject["average_billboard_packets_per_frame"] = (float) _sumBillboardPackets / (float) _numStatFrames;
     statsObject["average_identity_packets_per_frame"] = (float) _sumIdentityPackets / (float) _numStatFrames;
 
     statsObject["trailing_sleep_percentage"] = _trailingSleepRatio * 100;
@@ -507,7 +470,6 @@ void AvatarMixer::sendStatsPacket() {
     ThreadedAssignment::addPacketStatsAndSendStatsPacket(statsObject);
 
     _sumListeners = 0;
-    _sumBillboardPackets = 0;
     _sumIdentityPackets = 0;
     _numStatFrames = 0;
 }

assignment-client/src/avatars/AvatarMixer.h

@@ -15,6 +15,8 @@
 #ifndef hifi_AvatarMixer_h
 #define hifi_AvatarMixer_h
 
+#include <PortableHighResolutionClock.h>
+
 #include <ThreadedAssignment.h>
 
 /// Handles assignments of type AvatarMixer - distribution of avatar data to various clients
@@ -34,7 +36,6 @@ public slots:
 private slots:
     void handleAvatarDataPacket(QSharedPointer<ReceivedMessage> message, SharedNodePointer senderNode);
     void handleAvatarIdentityPacket(QSharedPointer<ReceivedMessage> message, SharedNodePointer senderNode);
-    void handleAvatarBillboardPacket(QSharedPointer<ReceivedMessage> message, SharedNodePointer senderNode);
     void handleKillAvatarPacket(QSharedPointer<ReceivedMessage> message);
     void domainSettingsRequestComplete();
     
@@ -44,15 +45,14 @@ private:
     
     QThread _broadcastThread;
     
-    quint64 _lastFrameTimestamp;
+    p_high_resolution_clock::time_point _lastFrameTimestamp;
     
-    float _trailingSleepRatio;
-    float _performanceThrottlingRatio;
+    float _trailingSleepRatio { 1.0f };
+    float _performanceThrottlingRatio { 0.0f };
     
-    int _sumListeners;
-    int _numStatFrames;
-    int _sumBillboardPackets;
-    int _sumIdentityPackets;
+    int _sumListeners { 0 };
+    int _numStatFrames { 0 };
+    int _sumIdentityPackets { 0 };
 
     float _maxKbpsPerNode = 0.0f;
 

assignment-client/src/avatars/AvatarMixerClientData.h

@@ -24,6 +24,7 @@
 #include <NodeData.h>
 #include <NumericalConstants.h>
 #include <udt/PacketHeaders.h>
+#include <PortableHighResolutionClock.h>
 #include <SimpleMovingAverage.h>
 #include <UUIDHasher.h>
 
@@ -33,6 +34,8 @@ const QString INBOUND_AVATAR_DATA_STATS_KEY = "inbound_av_data_kbps";
 class AvatarMixerClientData : public NodeData {
     Q_OBJECT
 public:
+    using HRCTime = p_high_resolution_clock::time_point;
+
     int parseData(ReceivedMessage& message) override;
     AvatarData& getAvatar() { return *_avatar; }
 
@@ -45,11 +48,8 @@ public:
 
     uint16_t getLastReceivedSequenceNumber() const { return _lastReceivedSequenceNumber; }
 
-    quint64 getBillboardChangeTimestamp() const { return _billboardChangeTimestamp; }
-    void setBillboardChangeTimestamp(quint64 billboardChangeTimestamp) { _billboardChangeTimestamp = billboardChangeTimestamp; }
-
-    quint64 getIdentityChangeTimestamp() const { return _identityChangeTimestamp; }
-    void setIdentityChangeTimestamp(quint64 identityChangeTimestamp) { _identityChangeTimestamp = identityChangeTimestamp; }
+    HRCTime getIdentityChangeTimestamp() const { return _identityChangeTimestamp; }
+    void flagIdentityChange() { _identityChangeTimestamp = p_high_resolution_clock::now(); }
 
     void setFullRateDistance(float fullRateDistance) { _fullRateDistance = fullRateDistance; }
     float getFullRateDistance() const { return _fullRateDistance; }
@@ -86,8 +86,7 @@ private:
     std::unordered_map<QUuid, uint16_t> _lastBroadcastSequenceNumbers;
     std::unordered_set<QUuid> _hasReceivedFirstPacketsFrom;
 
-    quint64 _billboardChangeTimestamp = 0;
-    quint64 _identityChangeTimestamp = 0;
+    HRCTime _identityChangeTimestamp;
 
     float _fullRateDistance = FLT_MAX;
     float _maxAvatarDistance = FLT_MAX;

cmake/templates/CPackProperties.cmake.in

@@ -9,16 +9,20 @@
 #  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
 #
 
+set(INTERFACE_DISPLAY_NAME "Interface")
 set(INTERFACE_SHORTCUT_NAME "@INTERFACE_SHORTCUT_NAME@")
 set(INTERFACE_HF_SHORTCUT_NAME "@INTERFACE_HF_SHORTCUT_NAME@")
 set(INTERFACE_WIN_EXEC_NAME "@INTERFACE_EXEC_PREFIX@.exe")
+set(CONSOLE_DISPLAY_NAME "Sandbox")
 set(CONSOLE_INSTALL_SUBDIR "@CONSOLE_INSTALL_DIR@")
 set(CONSOLE_SHORTCUT_NAME "@CONSOLE_SHORTCUT_NAME@")
 set(CONSOLE_HF_SHORTCUT_NAME "@CONSOLE_HF_SHORTCUT_NAME@")
 set(CONSOLE_WIN_EXEC_NAME "@CONSOLE_EXEC_NAME@")
 set(PRE_SANDBOX_INTERFACE_SHORTCUT_NAME "@PRE_SANDBOX_INTERFACE_SHORTCUT_NAME@")
 set(PRE_SANDBOX_CONSOLE_SHORTCUT_NAME "@PRE_SANDBOX_CONSOLE_SHORTCUT_NAME@")
+set(DS_DISPLAY_NAME "Domain Server")
 set(DS_EXEC_NAME "@DS_EXEC_NAME@")
+set(AC_DISPLAY_NAME "Assignment Client")
 set(AC_EXEC_NAME "@AC_EXEC_NAME@")
 set(HIGH_FIDELITY_PROTOCOL "@HIGH_FIDELITY_PROTOCOL@")
 set(PRODUCTION_BUILD "@PRODUCTION_BUILD@")

cmake/templates/NSIS.template.in

@@ -737,10 +737,10 @@ SectionEnd
 !macroend
 
 !macro CheckForRunningApplications action prompter
-  !insertmacro PromptForRunningApplication "@INTERFACE_WIN_EXEC_NAME@" "@CONSOLE_SHORTCUT_NAME@" ${action} ${prompter}
-  !insertmacro PromptForRunningApplication "@CONSOLE_WIN_EXEC_NAME@" "@INTERFACE_SHORTCUT_NAME@" ${action} ${prompter}
-  !insertmacro PromptForRunningApplication "@DS_EXEC_NAME@" "Domain Server" ${action} ${prompter}
-  !insertmacro PromptForRunningApplication "@AC_EXEC_NAME@" "Assignment Client" ${action} ${prompter}
+  !insertmacro PromptForRunningApplication "@INTERFACE_WIN_EXEC_NAME@" "@INTERFACE_DISPLAY_NAME@"  ${action} ${prompter}
+  !insertmacro PromptForRunningApplication "@CONSOLE_WIN_EXEC_NAME@" "@CONSOLE_DISPLAY_NAME@" ${action} ${prompter}
+  !insertmacro PromptForRunningApplication "@DS_EXEC_NAME@" "@DS_DISPLAY_NAME@" ${action} ${prompter}
+  !insertmacro PromptForRunningApplication "@AC_EXEC_NAME@" "@AC_DISPLAY_NAME@" ${action} ${prompter}
 !macroend
 
 ;--------------------------------

examples/defaultScripts.js

@@ -14,11 +14,9 @@ Script.load("edit.js");
 Script.load("examples.js");
 Script.load("selectAudioDevice.js");
 Script.load("notifications.js");
-Script.load("users.js");
 Script.load("controllers/handControllerGrab.js");
 Script.load("controllers/squeezeHands.js");
 Script.load("grab.js");
 Script.load("directory.js");
 Script.load("dialTone.js");
-// Script.load("attachedEntitiesManager.js");
 Script.load("depthReticle.js");

examples/disableAvatarAnimations.js

@@ -0,0 +1,50 @@
+//
+//  disableAvatarAnimations.js
+//  examples
+//
+//  Copyright 2016 High Fidelity, Inc.
+//
+//  When launched, it will replace all of the avatars animations with a single frame idle pose.
+//  full body IK and hand grabbing animations will still continue to function, but all other
+//  animations will be replaced.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+
+var skeletonModelURL = "";
+var jointCount = 0;
+
+var excludedRoles = ["rightHandGraspOpen", "rightHandGraspClosed", "leftHandGraspOpen", "leftHandGraspClosed"];
+var IDLE_URL = "http://hifi-content.s3.amazonaws.com/ozan/dev/anim/standard_anims_160127/idle.fbx";
+
+function overrideAnims() {
+    var roles = MyAvatar.getAnimationRoles();
+    var i, l = roles.length;
+    for (i = 0; i < l; i++) {
+        if (excludedRoles.indexOf(roles[i]) == -1) {
+            MyAvatar.overrideRoleAnimation(roles[i], IDLE_URL, 30, false, 1, 1);
+        }
+    }
+}
+
+function restoreAnims() {
+    var roles = MyAvatar.getAnimationRoles();
+    var i, l = roles.length;
+    for (i = 0; i < l; i++) {
+        if (excludedRoles.indexOf(roles[i]) == -1) {
+            MyAvatar.restoreRoleAnimation(roles[i]);
+        }
+    }
+}
+
+overrideAnims();
+
+MyAvatar.onLoadComplete.connect(function () {
+    overrideAnims();
+});
+
+Script.scriptEnding.connect(function () {
+    restoreAnims();
+});
+
+

examples/entityScripts/exampleSelfCallingTimeoutNoCleanup.js

@@ -0,0 +1,56 @@
+//
+//  exampleSelfCallingTimeoutNoCleanup.js
+//  examples/entityScripts
+//
+//  Created by Brad Hefta-Gaub on 4/18/16.
+//  Copyright 2016 High Fidelity, Inc.
+//
+//  This is an example of an entity script which hooks the update signal
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+(function() {
+    var _this;
+
+    // this is the "constructor" for the entity as a JS object we don't do much here, but we do want to remember
+    // our this object, so we can access it in cases where we're called without a this (like in the case of various global signals)
+    ExampleUpdate = function() { 
+         _this = this;
+    };
+
+    ExampleUpdate.prototype = {
+
+        timeOutFunction: function() {
+            var entityID = _this.entityID;
+            print("timeOutFunction in entityID:" + entityID);
+            Script.setTimeout(function() {
+                _this.timeOutFunction();
+            }, 3000);
+        },
+
+        // preload() will be called when the entity has become visible (or known) to the interface
+        // it gives us a chance to set our local JavaScript object up. In this case it means:
+        //   * remembering our entityID, so we can access it in cases where we're called without an entityID
+        //   * connecting to the update signal so we can check our grabbed state
+        preload: function(entityID) {
+            print("preload - entityID:" + entityID);
+            this.entityID = entityID;
+
+            print("preload - entityID:" + entityID + "-- calling timeOutFunction()....");
+            _this.timeOutFunction();
+        },
+
+        // unload() will be called when our entity is no longer available. It may be because we were deleted,
+        // or because we've left the domain or quit the application. In all cases we want to unhook our connection
+        // to the update signal
+        unload: function(entityID) {
+            print("unload - entityID:" + entityID);
+            print("NOTE --- WE DID NOT CALL clear our timeout");
+        },
+    };
+
+    // entity scripts always need to return a newly constructed object of our type
+    return new ExampleUpdate();
+})

examples/entityScripts/exampleTimeoutNoCleanup.js

@@ -0,0 +1,50 @@
+//
+//  exampleTimeoutNoCleanup.js
+//  examples/entityScripts
+//
+//  Created by Brad Hefta-Gaub on 4/18/16.
+//  Copyright 2016 High Fidelity, Inc.
+//
+//  This is an example of an entity script which hooks the update signal
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+(function() {
+    var _this;
+
+    // this is the "constructor" for the entity as a JS object we don't do much here, but we do want to remember
+    // our this object, so we can access it in cases where we're called without a this (like in the case of various global signals)
+    ExampleUpdate = function() { 
+         _this = this;
+    };
+
+    ExampleUpdate.prototype = {
+
+        // preload() will be called when the entity has become visible (or known) to the interface
+        // it gives us a chance to set our local JavaScript object up. In this case it means:
+        //   * remembering our entityID, so we can access it in cases where we're called without an entityID
+        //   * connecting to the update signal so we can check our grabbed state
+        preload: function(entityID) {
+            print("preload - entityID:" + entityID);
+            this.entityID = entityID;
+
+            Script.setInterval(function() {
+                    var entityID = _this.entityID;
+                    print("timer interval in entityID:" + entityID);
+                }, 3000);
+        },
+
+        // unload() will be called when our entity is no longer available. It may be because we were deleted,
+        // or because we've left the domain or quit the application. In all cases we want to unhook our connection
+        // to the update signal
+        unload: function(entityID) {
+            print("unload - entityID:" + entityID);
+            print("NOTE --- WE DID NOT CALL clear our timeout");
+        },
+    };
+
+    // entity scripts always need to return a newly constructed object of our type
+    return new ExampleUpdate();
+})

examples/entityScripts/exampleUpdate.js

@@ -0,0 +1,54 @@
+//
+//  exampleUpdate.js
+//  examples/entityScripts
+//
+//  Created by Brad Hefta-Gaub on 4/18/16.
+//  Copyright 2016 High Fidelity, Inc.
+//
+//  This is an example of an entity script which hooks the update signal
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+(function() {
+    var _this;
+
+    // this is the "constructor" for the entity as a JS object we don't do much here, but we do want to remember
+    // our this object, so we can access it in cases where we're called without a this (like in the case of various global signals)
+    ExampleUpdate = function() { 
+         _this = this;
+    };
+
+    ExampleUpdate.prototype = {
+
+        // update() will be called regulary, because we've hooked the update signal in our preload() function.
+        // we will check the avatars hand positions and if either hand is in our bounding box, we will notice that
+        update: function() {
+            // because the update() signal doesn't have a valid this, we need to use our memorized _this to access our entityID
+            var entityID = _this.entityID;
+            print("update in entityID:" + entityID);
+        },
+
+        // preload() will be called when the entity has become visible (or known) to the interface
+        // it gives us a chance to set our local JavaScript object up. In this case it means:
+        //   * remembering our entityID, so we can access it in cases where we're called without an entityID
+        //   * connecting to the update signal so we can check our grabbed state
+        preload: function(entityID) {
+            print("preload - entityID:" + entityID);
+            this.entityID = entityID;
+            Script.update.connect(this.update);
+        },
+
+        // unload() will be called when our entity is no longer available. It may be because we were deleted,
+        // or because we've left the domain or quit the application. In all cases we want to unhook our connection
+        // to the update signal
+        unload: function(entityID) {
+            print("unload - entityID:" + entityID);
+            Script.update.disconnect(this.update);
+        },
+    };
+
+    // entity scripts always need to return a newly constructed object of our type
+    return new ExampleUpdate();
+})

examples/entityScripts/exampleUpdateNoDisconnect.js

@@ -0,0 +1,54 @@
+//
+//  exampleUpdateNoDisconnect.js
+//  examples/entityScripts
+//
+//  Created by Brad Hefta-Gaub on 4/18/16.
+//  Copyright 2016 High Fidelity, Inc.
+//
+//  This is an example of an entity script which hooks the update signal
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+(function() {
+    var _this;
+
+    // this is the "constructor" for the entity as a JS object we don't do much here, but we do want to remember
+    // our this object, so we can access it in cases where we're called without a this (like in the case of various global signals)
+    ExampleUpdate = function() { 
+         _this = this;
+    };
+
+    ExampleUpdate.prototype = {
+
+        // update() will be called regulary, because we've hooked the update signal in our preload() function.
+        // we will check the avatars hand positions and if either hand is in our bounding box, we will notice that
+        update: function() {
+            // because the update() signal doesn't have a valid this, we need to use our memorized _this to access our entityID
+            var entityID = _this.entityID;
+            print("update in entityID:" + entityID);
+        },
+
+        // preload() will be called when the entity has become visible (or known) to the interface
+        // it gives us a chance to set our local JavaScript object up. In this case it means:
+        //   * remembering our entityID, so we can access it in cases where we're called without an entityID
+        //   * connecting to the update signal so we can check our grabbed state
+        preload: function(entityID) {
+            print("preload - entityID:" + entityID);
+            this.entityID = entityID;
+            Script.update.connect(this.update);
+        },
+
+        // unload() will be called when our entity is no longer available. It may be because we were deleted,
+        // or because we've left the domain or quit the application. In all cases we want to unhook our connection
+        // to the update signal
+        unload: function(entityID) {
+            print("unload - entityID:" + entityID);
+            print("NOTE --- WE DID NOT CALL Script.update.disconnect()");
+        },
+    };
+
+    // entity scripts always need to return a newly constructed object of our type
+    return new ExampleUpdate();
+})

examples/libraries/jasmine/hifi-boot.js

@@ -0,0 +1,53 @@
+
+(function() {
+    function ConsoleReporter(options) {
+        this.jasmineStarted = function (obj) {
+            print("jasmineStarted: numSpecs = " + obj.totalSpecsDefined);
+        };
+        this.jasmineDone = function (obj) {
+            print("jasmineDone");
+        };
+        this.suiteStarted = function(obj) {
+            print("suiteStarted: \"" + obj.fullName + "\"");
+        };
+        this.suiteDone = function(obj) {
+            print("suiteDone: \"" + obj.fullName + "\" " + obj.status);
+        };
+        this.specStarted = function(obj) {
+            print("specStarted: \"" + obj.fullName + "\"");
+        };
+        this.specDone = function(obj) {
+            print("specDone: \"" + obj.fullName + "\" " + obj.status);
+
+            var i, l = obj.failedExpectations.length;
+            for (i = 0; i < l; i++) {
+                print("  " + obj.failedExpectations[i].message);
+            }
+        };
+        return this;
+    }
+
+    setTimeout = Script.setTimeout;
+    setInterval = Script.setInterval;
+    clearTimeout = Script.clearTimeout;
+    clearInterval = Script.clearInterval;
+
+    var jasmine = jasmineRequire.core(jasmineRequire);
+
+    var env = jasmine.getEnv();
+
+    env.addReporter(new ConsoleReporter());
+
+    var jasmineInterface = jasmineRequire.interface(jasmine, env);
+
+    extend(this, jasmineInterface);
+
+    function extend(destination, source) {
+        for (var property in source) {
+            destination[property] = source[property];
+        }
+        return destination;
+    }
+
+}());
+

examples/libraries/toolBars.js

@@ -355,20 +355,36 @@ ToolBar = function(x, y, direction, optionalPersistenceKey, optionalInitialPosit
             });
         }
     };
-    that.windowDimensions = Controller.getViewportDimensions();
+
+    function clamp(value, min, max) {
+        return Math.min(Math.max(value, min), max);
+    }
+
+    var recommendedRect = Controller.getRecommendedOverlayRect();
+    var recommendedDimmensions = { x: recommendedRect.width, y: recommendedRect.height };
+    that.windowDimensions = recommendedDimmensions; // Controller.getViewportDimensions();
+    that.origin = { x: recommendedRect.x, y: recommendedRect.y };
     // Maybe fixme: Keeping the same percent of the window size isn't always the right thing.
     // For example, maybe we want "keep the same percentage to whatever two edges are closest to the edge of screen".
     // If we change that, the places to do so are onResizeViewport, save (maybe), and the initial move based on Settings, below.
     that.onResizeViewport = function (newSize) { // Can be overridden or extended by clients.
-        var fractionX = that.x / that.windowDimensions.x;
-        var fractionY = that.y / that.windowDimensions.y;
-        that.windowDimensions = newSize || Controller.getViewportDimensions();
-        that.move(fractionX * that.windowDimensions.x, fractionY * that.windowDimensions.y);
+        var recommendedRect = Controller.getRecommendedOverlayRect();
+        var recommendedDimmensions = { x: recommendedRect.width, y: recommendedRect.height };
+        var originRelativeX = (that.x - that.origin.x);
+        var originRelativeY = (that.y - that.origin.y);
+        var fractionX = clamp(originRelativeX / that.windowDimensions.x, 0, 1);
+        var fractionY = clamp(originRelativeY / that.windowDimensions.y, 0, 1);
+        that.windowDimensions = newSize || recommendedDimmensions;
+        that.origin = { x: recommendedRect.x, y: recommendedRect.y };
+        var newX = (fractionX * that.windowDimensions.x) + recommendedRect.x;
+        var newY = (fractionY * that.windowDimensions.y) + recommendedRect.y;
+        that.move(newX, newY);
     };
     if (optionalPersistenceKey) {
         this.fractionKey = optionalPersistenceKey + '.fraction';
         this.save = function () {
-            var screenSize = Controller.getViewportDimensions();
+            var recommendedRect = Controller.getRecommendedOverlayRect();
+            var screenSize = { x: recommendedRect.width, y: recommendedRect.height };
             if (screenSize.x > 0 && screenSize.y > 0) {
                 // Guard against invalid screen size that can occur at shut-down.
                 var fraction = {x: that.x / screenSize.x, y: that.y / screenSize.y};
@@ -411,7 +427,9 @@ ToolBar = function(x, y, direction, optionalPersistenceKey, optionalInitialPosit
         that.move(that.dragOffsetX + event.x, that.dragOffsetY + event.y);
     };
     that.checkResize = function () { // Can be overriden or extended, but usually not. See onResizeViewport.
-        var currentWindowSize = Controller.getViewportDimensions();
+        var recommendedRect = Controller.getRecommendedOverlayRect();
+        var currentWindowSize = { x: recommendedRect.width, y: recommendedRect.height };
+
         if ((currentWindowSize.x !== that.windowDimensions.x) || (currentWindowSize.y !== that.windowDimensions.y)) {
             that.onResizeViewport(currentWindowSize);            
         }
@@ -434,7 +452,8 @@ ToolBar = function(x, y, direction, optionalPersistenceKey, optionalInitialPosit
     }
     if (this.fractionKey || optionalInitialPositionFunction) {
         var savedFraction = JSON.parse(Settings.getValue(this.fractionKey) || '0'); // getValue can answer empty string
-        var screenSize = Controller.getViewportDimensions();
+        var recommendedRect = Controller.getRecommendedOverlayRect();
+        var screenSize = { x: recommendedRect.width, y: recommendedRect.height };
         if (savedFraction) {
             // If we have saved data, keep the toolbar at the same proportion of the screen width/height.
             that.move(savedFraction.x * screenSize.x, savedFraction.y * screenSize.y);

examples/tests/avatarUnitTests.js

@@ -0,0 +1,59 @@
+
+Script.include("../libraries/jasmine/jasmine.js");
+Script.include("../libraries/jasmine/hifi-boot.js");
+
+// Art3mis
+var DEFAULT_AVATAR_URL = "https://hifi-metaverse.s3-us-west-1.amazonaws.com/marketplace/contents/e76946cc-c272-4adf-9bb6-02cde0a4b57d/8fd984ea6fe1495147a3303f87fa6e23.fst?1460131758";
+
+var ORIGIN = {x: 0, y: 0, z: 0};
+var ONE_HUNDRED = {x: 100, y: 100, z: 100};
+var ROT_IDENT = {x: 0, y: 0, z: 0, w: 1};
+
+describe("MyAvatar", function () {
+
+    // reload the avatar from scratch before each test.
+    beforeEach(function (done) {
+        MyAvatar.skeletonModelURL = DEFAULT_AVATAR_URL;
+
+        // wait until we are finished loading
+        var id = Script.setInterval(function () {
+            if (MyAvatar.jointNames.length == 72) {
+                // assume we are finished loading.
+                Script.clearInterval(id);
+                MyAvatar.position = ORIGIN;
+                MyAvatar.orientation = ROT_IDENT;
+                // give the avatar 1/2 a second to settle on the ground in the idle pose.
+                 Script.setTimeout(function () {
+                    done();
+                }, 500);
+            }
+        }, 500);
+    });
+
+    // makes the assumption that there is solid ground somewhat underneath the avatar.
+    it("position and orientation getters", function () {
+        var pos = MyAvatar.position;
+
+        expect(Math.abs(pos.x)).toBeLessThan(0.1);
+        expect(Math.abs(pos.y)).toBeLessThan(1.0);
+        expect(Math.abs(pos.z)).toBeLessThan(0.1);
+
+        var rot = MyAvatar.orientation;
+        expect(Math.abs(rot.x)).toBeLessThan(0.01);
+        expect(Math.abs(rot.y)).toBeLessThan(0.01);
+        expect(Math.abs(rot.z)).toBeLessThan(0.01);
+        expect(Math.abs(1 - rot.w)).toBeLessThan(0.01);
+    });
+
+    it("position and orientation setters", function (done) {
+        MyAvatar.position = ONE_HUNDRED;
+        Script.setTimeout(function () {
+            expect(Vec3.length(Vec3.subtract(MyAvatar.position, ONE_HUNDRED))).toBeLessThan(0.1);
+            done();
+        }, 100);
+    });
+
+});
+
+jasmine.getEnv().execute();
+

examples/utilities/render/framebuffer.qml

@@ -39,6 +39,7 @@ Column {
                 "Shadow",
                 "Pyramid Depth",
                 "Ambient Occlusion",
+                "Ambient Occlusion Blurred",
                 "Custom Shader"
             ]
            RadioButton {

examples/utilities/render/stats.qml

@@ -80,11 +80,6 @@ Item {
                     label: "GPU",
                     color: "#1AC567"
                 },
-                {
-                    prop: "frameTextureCount",
-                    label: "Frame",
-                    color: "#E2334D"
-                },
                 {
                     prop: "textureGPUTransferCount",
                     label: "Transfer",
@@ -114,13 +109,7 @@ Item {
                     prop: "textureGPUVirtualMemoryUsage",
                     label: "GPU Virtual",
                     color: "#9495FF"
-                },
-                {
-                    prop: "frameTextureMemoryUsage",
-                    label: "Frame",
-                    color: "#E2334D"
                 }
-
             ]
         }
 
@@ -170,6 +159,24 @@ Item {
             ]
         }
  
+        PlotPerf {
+            title: "State Changes"
+            height: parent.evalEvenHeight()
+            object: stats.config
+            plots: [
+                {
+                    prop: "frameTextureCount",
+                    label: "Textures",
+                    color: "#00B4EF"
+                },
+                {
+                    prop: "frameSetPipelineCount",
+                    label: "Pipelines",
+                    color: "#E2334D"
+                }
+            ]
+        }  
+
         property var drawOpaqueConfig: Render.getConfig("DrawOpaqueDeferred")
         property var drawTransparentConfig: Render.getConfig("DrawTransparentDeferred")
         property var drawLightConfig: Render.getConfig("DrawLight")
@@ -178,9 +185,10 @@ Item {
             title: "Items"
             height: parent.evalEvenHeight()
             object: parent.drawOpaqueConfig
+
             plots: [
                 {
-                    object: Render.getConfig("DrawOpaqueDeferred"),
+                    object: parent.drawOpaqueConfig,
                     prop: "numDrawn",
                     label: "Opaques",
                     color: "#1AC567"
@@ -198,7 +206,42 @@ Item {
                     color: "#FED959"
                 }
             ]
-        }     
+        } 
+
+        PlotPerf {
+           title: "Timing"
+           height: parent.evalEvenHeight()
+           object: parent.drawOpaqueConfig
+           valueUnit: "ms"
+           valueScale: 1000
+           valueNumDigits: "1"
+           plots: [
+               {
+                   object: Render.getConfig("DrawOpaqueDeferred"),
+                   prop: "cpuRunTime",
+                   label: "Opaques",
+                   color: "#1AC567"
+               },
+               {
+                   object: Render.getConfig("DrawTransparentDeferred"),
+                   prop: "cpuRunTime",
+                   label: "Translucents",
+                   color: "#00B4EF"
+               },
+               {
+                   object: Render.getConfig("RenderDeferred"),
+                   prop: "cpuRunTime",
+                   label: "Lighting",
+                   color: "#FED959"
+               },
+               {
+                   object: Render.getConfig("RenderDeferredTask"),
+                   prop: "cpuRunTime",
+                   label: "RenderFrame",
+                   color: "#E2334D"
+               }
+           ]
+       }           
     }
 
 }

interface/resources/qml/AvatarInputs.qml

@@ -23,6 +23,8 @@ Hifi.AvatarInputs {
     readonly property int mirrorWidth: 265
     readonly property int iconSize: 24
     readonly property int iconPadding: 5
+
+    readonly property bool shouldReposition: true
     
     Settings {
         category: "Overlay.AvatarInputs"

interface/resources/qml/desktop/Desktop.qml

@@ -21,8 +21,11 @@ FocusScope {
     objectName: "desktop"
     anchors.fill: parent
 
-    onHeightChanged: d.repositionAll();
-    onWidthChanged: d.repositionAll();
+    property rect recommendedRect: rect(0,0,0,0);
+
+    onHeightChanged: d.handleSizeChanged();
+    
+    onWidthChanged: d.handleSizeChanged();
 
     // Controls and windows can trigger this signal to ensure the desktop becomes visible
     // when they're opened.
@@ -50,6 +53,20 @@ FocusScope {
     QtObject {
         id: d
 
+        function handleSizeChanged() {
+            var oldRecommendedRect = recommendedRect;
+            var newRecommendedRectJS = Controller.getRecommendedOverlayRect();
+            var newRecommendedRect = Qt.rect(newRecommendedRectJS.x, newRecommendedRectJS.y, 
+                                    newRecommendedRectJS.width, 
+                                    newRecommendedRectJS.height);
+
+            if (oldRecommendedRect != Qt.rect(0,0,0,0)
+                  && oldRecommendedRect != newRecommendedRect) {
+                d.repositionAll();
+            }
+            recommendedRect = newRecommendedRect;
+        }
+
         function findChild(item, name) {
             for (var i = 0; i < item.children.length; ++i) {
                 if (item.children[i].objectName === name) {
@@ -202,12 +219,42 @@ FocusScope {
 //            }
         }
 
+        function getRepositionChildren(predicate) {
+            var currentWindows = [];
+            if (!desktop) {
+                console.log("Could not find desktop");
+                return currentWindows;
+            }
+
+            for (var i = 0; i < desktop.children.length; ++i) {
+                var child = desktop.children[i];
+                if (child.shouldReposition === true && (!predicate || predicate(child))) {
+                    currentWindows.push(child)
+                }
+            }
+            return currentWindows;
+        }
 
         function repositionAll() {
+            var oldRecommendedRect = recommendedRect;
+            var oldRecommendedDimmensions = { x: oldRecommendedRect.width, y: oldRecommendedRect.height };
+            var newRecommendedRect = Controller.getRecommendedOverlayRect();
+            var newRecommendedDimmensions = { x: newRecommendedRect.width, y: newRecommendedRect.height };
             var windows = d.getTopLevelWindows();
             for (var i = 0; i < windows.length; ++i) {
-                reposition(windows[i]);
+                var targetWindow = windows[i];
+                if (targetWindow.visible) {
+                    repositionWindow(targetWindow, true, oldRecommendedRect, oldRecommendedDimmensions, newRecommendedRect, newRecommendedDimmensions);
+                }
             }
+
+            // also reposition the other children that aren't top level windows but want to be repositioned
+            var otherChildren = d.getRepositionChildren();
+            for (var i = 0; i < otherChildren.length; ++i) {
+                var child = otherChildren[i];
+                repositionWindow(child, true, oldRecommendedRect, oldRecommendedDimmensions, newRecommendedRect, newRecommendedDimmensions);
+            }
+
         }
     }
 
@@ -232,38 +279,56 @@ FocusScope {
             targetWindow.focus = true;
         }
 
-        reposition(targetWindow);
+        var oldRecommendedRect = recommendedRect;
+        var oldRecommendedDimmensions = { x: oldRecommendedRect.width, y: oldRecommendedRect.height };
+        var newRecommendedRect = Controller.getRecommendedOverlayRect();
+        var newRecommendedDimmensions = { x: newRecommendedRect.width, y: newRecommendedRect.height };
+        repositionWindow(targetWindow, false, oldRecommendedRect, oldRecommendedDimmensions, newRecommendedRect, newRecommendedDimmensions);
 
         showDesktop();
     }
 
-    function reposition(item) {
+    function repositionWindow(targetWindow, forceReposition, 
+                    oldRecommendedRect, oldRecommendedDimmensions, newRecommendedRect, newRecommendedDimmensions) {
+
         if (desktop.width === 0 || desktop.height === 0) {
             return;
         }
 
-        var targetWindow = d.getDesktopWindow(item);
         if (!targetWindow) {
             console.warn("Could not find top level window for " + item);
             return;
         }
 
+        var recommended = Controller.getRecommendedOverlayRect();
+        var maxX = recommended.x + recommended.width;
+        var maxY = recommended.y + recommended.height;
         var newPosition = Qt.vector2d(targetWindow.x, targetWindow.y);
-        // If the window is completely offscreen, reposition it
-        if ((targetWindow.x > desktop.width || (targetWindow.x + targetWindow.width)  < 0) ||
-            (targetWindow.y > desktop.height || (targetWindow.y + targetWindow.height)  < 0))  {
+
+        // if we asked to force reposition, or if the window is completely outside of the recommended rectangle, reposition it
+        if (forceReposition || (targetWindow.x > maxX || (targetWindow.x + targetWindow.width) < recommended.x) ||
+            (targetWindow.y > maxY || (targetWindow.y + targetWindow.height) < recommended.y))  {
             newPosition.x = -1
             newPosition.y = -1
         }
 
+
         if (newPosition.x === -1 && newPosition.y === -1) {
-            // Set initial window position
-            // var minPosition = Qt.vector2d(-windowRect.x, -windowRect.y);
-            // var maxPosition = Qt.vector2d(desktop.width - windowRect.width, desktop.height - windowRect.height);
-            // newPosition = Utils.clampVector(newPosition, minPosition, maxPosition);
-            // newPosition = Utils.randomPosition(minPosition, maxPosition);
-            newPosition = Qt.vector2d(desktop.width / 2 - targetWindow.width / 2,
-                                      desktop.height / 2 - targetWindow.height / 2);
+            var originRelativeX = (targetWindow.x - oldRecommendedRect.x);
+            var originRelativeY = (targetWindow.y - oldRecommendedRect.y);
+            if (isNaN(originRelativeX)) {
+                originRelativeX = 0;
+            }
+            if (isNaN(originRelativeY)) {
+                originRelativeY = 0;
+            }
+            var fractionX = Utils.clamp(originRelativeX / oldRecommendedDimmensions.x, 0, 1);
+            var fractionY = Utils.clamp(originRelativeY / oldRecommendedDimmensions.y, 0, 1);
+
+            var newX = (fractionX * newRecommendedDimmensions.x) + newRecommendedRect.x;
+            var newY = (fractionY * newRecommendedDimmensions.y) + newRecommendedRect.y;
+
+            newPosition = Qt.vector2d(newX, newY);
         }
         targetWindow.x = newPosition.x;
         targetWindow.y = newPosition.y;

interface/src/Application.cpp

@@ -195,12 +195,7 @@ static const uint32_t INVALID_FRAME = UINT32_MAX;
 
 static const float PHYSICS_READY_RANGE = 3.0f; // how far from avatar to check for entities that aren't ready for simulation
 
-#ifndef __APPLE__
 static const QString DESKTOP_LOCATION = QStandardPaths::writableLocation(QStandardPaths::DesktopLocation);
-#else
-// Temporary fix to Qt bug: http://stackoverflow.com/questions/16194475
-static const QString DESKTOP_LOCATION = QStandardPaths::writableLocation(QStandardPaths::DesktopLocation).append("/script.js");
-#endif
 
 Setting::Handle<int> maxOctreePacketsPerSecond("maxOctreePPS", DEFAULT_MAX_OCTREE_PPS);
 
@@ -1183,8 +1178,6 @@ void Application::cleanupBeforeQuit() {
     }
     _keyboardFocusHighlight = nullptr;
 
-    getEntities()->clear(); // this will allow entity scripts to properly shutdown
-
     auto nodeList = DependencyManager::get<NodeList>();
 
     // send the domain a disconnect packet, force stoppage of domain-server check-ins
@@ -1195,6 +1188,7 @@ void Application::cleanupBeforeQuit() {
     nodeList->getPacketReceiver().setShouldDropPackets(true);
 
     getEntities()->shutdown(); // tell the entities system we're shutting down, so it will stop running scripts
+
     DependencyManager::get<ScriptEngines>()->saveScripts();
     DependencyManager::get<ScriptEngines>()->shutdownScripting(); // stop all currently running global scripts
     DependencyManager::destroy<ScriptEngines>();
@@ -2686,8 +2680,6 @@ void Application::idle(uint64_t now) {
         _overlayConductor.setEnabled(Menu::getInstance()->isOptionChecked(MenuOption::Overlays));
     }
 
-
-
     // If the offscreen Ui has something active that is NOT the root, then assume it has keyboard focus.
     auto offscreenUi = DependencyManager::get<OffscreenUi>();
     if (_keyboardDeviceHasFocus && offscreenUi && offscreenUi->getWindow()->activeFocusItem() != offscreenUi->getRootItem()) {
@@ -4191,8 +4183,13 @@ void Application::updateWindowTitle() const {
 }
 
 void Application::clearDomainOctreeDetails() {
+
+    // if we're about to quit, we really don't need to do any of these things...
+    if (_aboutToQuit) {
+        return;
+    }
+
     qCDebug(interfaceapp) << "Clearing domain octree details...";
-    // reset the environment so that we don't erroneously end up with multiple
 
     resetPhysicsReadyInformation();
 
@@ -4216,7 +4213,6 @@ void Application::clearDomainOctreeDetails() {
 
 void Application::domainChanged(const QString& domainHostname) {
     updateWindowTitle();
-    clearDomainOctreeDetails();
     // disable physics until we have enough information about our new location to not cause craziness.
     resetPhysicsReadyInformation();
 }
@@ -4899,19 +4895,44 @@ QRect Application::getRenderingGeometry() const {
 }
 
 glm::uvec2 Application::getUiSize() const {
-    return getActiveDisplayPlugin()->getRecommendedUiSize();
+    static const uint MIN_SIZE = 1;
+    glm::uvec2 result(MIN_SIZE);
+    if (_displayPlugin) {
+        result = getActiveDisplayPlugin()->getRecommendedUiSize();
+    }
+    return result;
+}
+
+QRect Application::getRecommendedOverlayRect() const {
+    auto uiSize = getUiSize();
+    QRect result(0, 0, uiSize.x, uiSize.y);
+    if (_displayPlugin) {
+        result = getActiveDisplayPlugin()->getRecommendedOverlayRect();
+    }
+    return result;
 }
 
 QSize Application::getDeviceSize() const {
-    return fromGlm(getActiveDisplayPlugin()->getRecommendedRenderSize());
+    static const int MIN_SIZE = 1;
+    QSize result(MIN_SIZE, MIN_SIZE);
+    if (_displayPlugin) {
+        result = fromGlm(getActiveDisplayPlugin()->getRecommendedRenderSize());
+    }
+    return result;
 }
 
 bool Application::isThrottleRendering() const {
-    return getActiveDisplayPlugin()->isThrottled();
+    if (_displayPlugin) {
+        return getActiveDisplayPlugin()->isThrottled();
+    }
+    return false;
 }
 
 bool Application::hasFocus() const {
-    return getActiveDisplayPlugin()->hasFocus();
+    if (_displayPlugin) {
+        return getActiveDisplayPlugin()->hasFocus();
+    }
+    return (QApplication::activeWindow() != nullptr);
 }
 
 glm::vec2 Application::getViewportDimensions() const {

interface/src/Application.h

@@ -117,6 +117,7 @@ public:
     QRect getRenderingGeometry() const;
 
     glm::uvec2 getUiSize() const;
+    QRect getRecommendedOverlayRect() const;
     QSize getDeviceSize() const;
     bool hasFocus() const;
 

interface/src/Stars.cpp

@@ -14,7 +14,6 @@
 #include <mutex>
 
 #include <QElapsedTimer>
-#include <gpu/Context.h>
 #include <NumericalConstants.h>
 #include <DependencyManager.h>
 #include <GeometryCache.h>
@@ -42,26 +41,11 @@ static const float TAU = 6.28318530717958f;
 //static const float MILKY_WAY_RATIO = 0.4f;
 static const char* UNIFORM_TIME_NAME = "iGlobalTime";
 
-
-
-Stars::Stars() {
-}
-
-Stars::~Stars() {
-}
-
 // Produce a random float value between 0 and 1
 static float frand() {
     return (float)rand() / (float)RAND_MAX;
 }
 
-// Produce a random radian value between 0 and 2 PI (TAU)
-/*
-static float rrand() {
-    return frand() * TAU;
-}
- */
-
 // http://mathworld.wolfram.com/SpherePointPicking.html
 static vec2 randPolar() {
     vec2 result(frand(), frand());
@@ -115,59 +99,56 @@ struct StarVertex {
     vec4 colorAndSize;
 };
 
-// FIXME star colors
-void Stars::render(RenderArgs* renderArgs, float alpha) {
-    static gpu::BufferPointer vertexBuffer;
-    static gpu::Stream::FormatPointer streamFormat;
-    static gpu::Element positionElement, colorElement;
-    static gpu::PipelinePointer _gridPipeline;
-    static gpu::PipelinePointer _starsPipeline;
-    static int32_t _timeSlot{ -1 };
-    static std::once_flag once;
+static const int STARS_VERTICES_SLOT{ 0 };
+static const int STARS_COLOR_SLOT{ 1 };
 
-    const int VERTICES_SLOT = 0;
-    const int COLOR_SLOT = 1;
+gpu::PipelinePointer Stars::_gridPipeline{};
+gpu::PipelinePointer Stars::_starsPipeline{};
+int32_t Stars::_timeSlot{ -1 };
 
-    std::call_once(once, [&] {
-        {
-            auto vs = gpu::Shader::createVertex(std::string(standardTransformPNTC_vert));
-            auto ps = gpu::Shader::createPixel(std::string(starsGrid_frag));
-            auto program = gpu::Shader::createProgram(vs, ps);
-            gpu::Shader::makeProgram((*program));
-            _timeSlot = program->getBuffers().findLocation(UNIFORM_TIME_NAME);
-            if (_timeSlot == gpu::Shader::INVALID_LOCATION) {
-                _timeSlot = program->getUniforms().findLocation(UNIFORM_TIME_NAME);
-            }
-            auto state = gpu::StatePointer(new gpu::State());
-            // enable decal blend
-            state->setDepthTest(gpu::State::DepthTest(false));
-            state->setStencilTest(true, 0xFF, gpu::State::StencilTest(0, 0xFF, gpu::EQUAL, gpu::State::STENCIL_OP_KEEP, gpu::State::STENCIL_OP_KEEP, gpu::State::STENCIL_OP_KEEP));
-            state->setBlendFunction(true, gpu::State::SRC_ALPHA, gpu::State::BLEND_OP_ADD, gpu::State::INV_SRC_ALPHA);
-            _gridPipeline = gpu::Pipeline::create(program, state);
-        }
-        {
-            auto vs = gpu::Shader::createVertex(std::string(stars_vert));
-            auto ps = gpu::Shader::createPixel(std::string(stars_frag));
-            auto program = gpu::Shader::createProgram(vs, ps);
-            gpu::Shader::makeProgram((*program));
-            auto state = gpu::StatePointer(new gpu::State());
-            // enable decal blend
-            state->setDepthTest(gpu::State::DepthTest(false));
-            state->setStencilTest(true, 0xFF, gpu::State::StencilTest(0, 0xFF, gpu::EQUAL, gpu::State::STENCIL_OP_KEEP, gpu::State::STENCIL_OP_KEEP, gpu::State::STENCIL_OP_KEEP));
-            state->setAntialiasedLineEnable(true); // line smoothing also smooth points
-            state->setBlendFunction(true, gpu::State::SRC_ALPHA, gpu::State::BLEND_OP_ADD, gpu::State::INV_SRC_ALPHA);
-            _starsPipeline = gpu::Pipeline::create(program, state);
-            
+void Stars::init() {
+    if (!_gridPipeline) {
+        auto vs = gpu::Shader::createVertex(std::string(standardTransformPNTC_vert));
+        auto ps = gpu::Shader::createPixel(std::string(starsGrid_frag));
+        auto program = gpu::Shader::createProgram(vs, ps);
+        gpu::Shader::makeProgram((*program));
+        _timeSlot = program->getBuffers().findLocation(UNIFORM_TIME_NAME);
+        if (_timeSlot == gpu::Shader::INVALID_LOCATION) {
+            _timeSlot = program->getUniforms().findLocation(UNIFORM_TIME_NAME);
         }
+        auto state = gpu::StatePointer(new gpu::State());
+        // enable decal blend
+        state->setDepthTest(gpu::State::DepthTest(false));
+        state->setStencilTest(true, 0xFF, gpu::State::StencilTest(0, 0xFF, gpu::EQUAL, gpu::State::STENCIL_OP_KEEP, gpu::State::STENCIL_OP_KEEP, gpu::State::STENCIL_OP_KEEP));
+        state->setBlendFunction(true, gpu::State::SRC_ALPHA, gpu::State::BLEND_OP_ADD, gpu::State::INV_SRC_ALPHA);
+        _gridPipeline = gpu::Pipeline::create(program, state);
+    }
 
+    if (!_starsPipeline) {
+        auto vs = gpu::Shader::createVertex(std::string(stars_vert));
+        auto ps = gpu::Shader::createPixel(std::string(stars_frag));
+        auto program = gpu::Shader::createProgram(vs, ps);
+        gpu::Shader::makeProgram((*program));
+        auto state = gpu::StatePointer(new gpu::State());
+        // enable decal blend
+        state->setDepthTest(gpu::State::DepthTest(false));
+        state->setStencilTest(true, 0xFF, gpu::State::StencilTest(0, 0xFF, gpu::EQUAL, gpu::State::STENCIL_OP_KEEP, gpu::State::STENCIL_OP_KEEP, gpu::State::STENCIL_OP_KEEP));
+        state->setAntialiasedLineEnable(true); // line smoothing also smooth points
+        state->setBlendFunction(true, gpu::State::SRC_ALPHA, gpu::State::BLEND_OP_ADD, gpu::State::INV_SRC_ALPHA);
+        _starsPipeline = gpu::Pipeline::create(program, state);
+    }
+
+    unsigned limit = STARFIELD_NUM_STARS;
+    std::vector<StarVertex> points;
+    points.resize(limit);
+
+    { // generate stars
         QElapsedTimer startTime;
         startTime.start();
+
         vertexBuffer.reset(new gpu::Buffer);
 
         srand(STARFIELD_SEED);
-        unsigned limit = STARFIELD_NUM_STARS;
-        std::vector<StarVertex> points;
-        points.resize(limit);
         for (size_t star = 0; star < limit; ++star) {
             points[star].position = vec4(fromPolar(randPolar()), 1);
             float size = frand() * 2.5f + 0.5f;
@@ -179,16 +160,32 @@ void Stars::render(RenderArgs* renderArgs, float alpha) {
                 points[star].colorAndSize = vec4(color, size);
             }
         }
+
         double timeDiff = (double)startTime.nsecsElapsed() / 1000000.0; // ns to ms
         qDebug() << "Total time to generate stars: " << timeDiff << " msec";
+    }
+
+    gpu::Element positionElement, colorElement;
+    const size_t VERTEX_STRIDE = sizeof(StarVertex);
+
+    vertexBuffer->append(VERTEX_STRIDE * limit, (const gpu::Byte*)&points[0]);
+    streamFormat.reset(new gpu::Stream::Format()); // 1 for everyone
+    streamFormat->setAttribute(gpu::Stream::POSITION, STARS_VERTICES_SLOT, gpu::Element(gpu::VEC4, gpu::FLOAT, gpu::XYZW), 0);
+    streamFormat->setAttribute(gpu::Stream::COLOR, STARS_COLOR_SLOT, gpu::Element(gpu::VEC4, gpu::FLOAT, gpu::RGBA));
+    positionElement = streamFormat->getAttributes().at(gpu::Stream::POSITION)._element;
+    colorElement = streamFormat->getAttributes().at(gpu::Stream::COLOR)._element;
+
+    size_t offset = offsetof(StarVertex, position);
+    positionView = gpu::BufferView(vertexBuffer, offset, vertexBuffer->getSize(), VERTEX_STRIDE, positionElement);
+
+    offset = offsetof(StarVertex, colorAndSize);
+    colorView = gpu::BufferView(vertexBuffer, offset, vertexBuffer->getSize(), VERTEX_STRIDE, colorElement);
+}
+
+// FIXME star colors
+void Stars::render(RenderArgs* renderArgs, float alpha) {
+    std::call_once(once, [&]{ init(); });
 
-        vertexBuffer->append(sizeof(StarVertex) * limit, (const gpu::Byte*)&points[0]);
-        streamFormat.reset(new gpu::Stream::Format()); // 1 for everyone
-        streamFormat->setAttribute(gpu::Stream::POSITION, VERTICES_SLOT, gpu::Element(gpu::VEC4, gpu::FLOAT, gpu::XYZW), 0);
-        streamFormat->setAttribute(gpu::Stream::COLOR, COLOR_SLOT, gpu::Element(gpu::VEC4, gpu::FLOAT, gpu::RGBA));
-        positionElement = streamFormat->getAttributes().at(gpu::Stream::POSITION)._element;
-        colorElement = streamFormat->getAttributes().at(gpu::Stream::COLOR)._element;
-    });
 
     auto modelCache = DependencyManager::get<ModelCache>();
     auto textureCache = DependencyManager::get<TextureCache>();
@@ -210,17 +207,10 @@ void Stars::render(RenderArgs* renderArgs, float alpha) {
     batch._glUniform1f(_timeSlot, secs);
     geometryCache->renderCube(batch);
 
-    static const size_t VERTEX_STRIDE = sizeof(StarVertex);
-    size_t offset = offsetof(StarVertex, position);
-    gpu::BufferView posView(vertexBuffer, offset, vertexBuffer->getSize(), VERTEX_STRIDE, positionElement);
-    offset = offsetof(StarVertex, colorAndSize);
-    gpu::BufferView colView(vertexBuffer, offset, vertexBuffer->getSize(), VERTEX_STRIDE, colorElement);
-    
     // Render the stars
     batch.setPipeline(_starsPipeline);
-
     batch.setInputFormat(streamFormat);
-    batch.setInputBuffer(VERTICES_SLOT, posView);
-    batch.setInputBuffer(COLOR_SLOT, colView);
+    batch.setInputBuffer(STARS_VERTICES_SLOT, positionView);
+    batch.setInputBuffer(STARS_COLOR_SLOT, colorView);
     batch.draw(gpu::Primitive::POINTS, STARFIELD_NUM_STARS);
 }

interface/src/Stars.h

@@ -12,21 +12,37 @@
 #ifndef hifi_Stars_h
 #define hifi_Stars_h
 
+#include <gpu/Context.h>
+
 class RenderArgs;
 
 // Starfield rendering component. 
 class Stars  {
 public:
-    Stars();
-    ~Stars();
+    Stars() = default;
+    ~Stars() = default;
+
+    Stars(Stars const&) = delete;
+    Stars& operator=(Stars const&) = delete;
 
     // Renders the starfield from a local viewer's perspective.
     // The parameters specifiy the field of view.
     void render(RenderArgs* args, float alpha);
+
 private:
-    // don't copy/assign
-    Stars(Stars const&); // = delete;
-    Stars& operator=(Stars const&); // delete;
+    // Pipelines
+    static gpu::PipelinePointer _gridPipeline;
+    static gpu::PipelinePointer _starsPipeline;
+    static int32_t _timeSlot;
+
+    // Buffers
+    gpu::BufferPointer vertexBuffer;
+    gpu::Stream::FormatPointer streamFormat;
+    gpu::BufferView positionView;
+    gpu::BufferView colorView;
+    std::once_flag once;
+
+    void init();
 };
 
 

interface/src/avatar/MyAvatar.cpp

@@ -198,6 +198,8 @@ MyAvatar::MyAvatar(RigPointer rig) :
             _headData->setLookAtPosition(headData->getLookAtPosition());
         }
     });
+
+    connect(rig.get(), SIGNAL(onLoadComplete()), this, SIGNAL(onLoadComplete()));
 }
 
 MyAvatar::~MyAvatar() {
@@ -349,6 +351,10 @@ void MyAvatar::simulate(float deltaTime) {
         _skeletonModel->simulate(deltaTime);
     }
 
+    // we've achived our final adjusted position and rotation for the avatar
+    // and all of its joints, now update our attachements.
+    Avatar::simulateAttachments(deltaTime);
+
     if (!_skeletonModel->hasSkeleton()) {
         // All the simulation that can be done has been done
         return;
@@ -1169,9 +1175,6 @@ void MyAvatar::harvestResultsFromPhysicsSimulation(float deltaTime) {
     _bodySensorMatrix = _follow.postPhysicsUpdate(*this, _bodySensorMatrix);
 
     setVelocity(_characterController.getLinearVelocity() + _characterController.getFollowVelocity());
-
-    // now that physics has adjusted our position, we can update attachements.
-    Avatar::simulateAttachments(deltaTime);
 }
 
 QString MyAvatar::getScriptedMotorFrame() const {
@@ -1575,6 +1578,7 @@ glm::vec3 MyAvatar::applyKeyboardMotor(float deltaTime, const glm::vec3& localVe
                 float speedIncreaseFactor = 1.8f;
                 motorSpeed *= 1.0f + glm::clamp(deltaTime / speedGrowthTimescale , 0.0f, 1.0f) * speedIncreaseFactor;
                 const float maxBoostSpeed = getUniformScale() * MAX_BOOST_SPEED;
+
                 if (motorSpeed < maxBoostSpeed) {
                     // an active keyboard motor should never be slower than this
                     float boostCoefficient = (maxBoostSpeed - motorSpeed) / maxBoostSpeed;
@@ -2089,7 +2093,7 @@ float MyAvatar::getAccelerationEnergy() {
     int changeInVelocity = abs(velocity.length() - priorVelocity.length());
     float changeInEnergy = priorVelocity.length() * changeInVelocity * AVATAR_MOVEMENT_ENERGY_CONSTANT;
     priorVelocity = velocity;
-    
+
     return changeInEnergy;
 }
 
@@ -2111,4 +2115,3 @@ bool MyAvatar::didTeleport() {
     lastPosition = pos;
     return (changeInPosition.length() > MAX_AVATAR_MOVEMENT_PER_FRAME);
 }
-

interface/src/avatar/MyAvatar.h

@@ -299,7 +299,7 @@ signals:
     void collisionWithEntity(const Collision& collision);
     void energyChanged(float newEnergy);
     void positionGoneTo();
-
+    void onLoadComplete();
 
 private:
 

interface/src/scripting/ControllerScriptingInterface.cpp

@@ -80,6 +80,11 @@ glm::vec2 ControllerScriptingInterface::getViewportDimensions() const {
     return qApp->getUiSize();
 }
 
+QVariant ControllerScriptingInterface::getRecommendedOverlayRect() const {
+    auto rect = qApp->getRecommendedOverlayRect();
+    return qRectToVariant(rect);
+}
+
 controller::InputController* ControllerScriptingInterface::createInputController(const QString& deviceName, const QString& tracker) {
     // This is where we retrieve the Device Tracker category and then the sub tracker within it
     auto icIt = _inputControllers.find(0);

interface/src/scripting/ControllerScriptingInterface.h

@@ -96,6 +96,7 @@ public slots:
     virtual void releaseJoystick(int joystickIndex);
 
     virtual glm::vec2 getViewportDimensions() const;
+    virtual QVariant getRecommendedOverlayRect() const;
 
     /// Factory to create an InputController
     virtual controller::InputController* createInputController(const QString& deviceName, const QString& tracker);

libraries/animation/src/Rig.cpp

@@ -1161,6 +1161,7 @@ void Rig::initAnimGraph(const QUrl& url) {
             overrideAnimation(origState.url, origState.fps, origState.loop, origState.firstFrame, origState.lastFrame);
         }
 
+        emit onLoadComplete();
     });
     connect(_animLoader.get(), &AnimNodeLoader::error, [url](int error, QString str) {
         qCCritical(animation) << "Error loading" << url.toDisplayString() << "code = " << error << "str =" << str;

libraries/animation/src/Rig.h

@@ -32,6 +32,7 @@ typedef std::shared_ptr<Rig> RigPointer;
 // However only specific methods thread-safe.  Noted below.
 
 class Rig : public QObject, public std::enable_shared_from_this<Rig> {
+    Q_OBJECT
 public:
     struct StateHandler {
         AnimVariantMap results;
@@ -223,7 +224,10 @@ public:
 
     const glm::mat4& getGeometryToRigTransform() const { return _geometryToRigTransform; }
 
- protected:
+signals:
+    void onLoadComplete();
+
+protected:
     bool isIndexValid(int index) const { return _animSkeleton && index >= 0 && index < _animSkeleton->getNumJoints(); }
     void updateAnimationStateHandlers();
     void applyOverridePoses();

libraries/animation/src/SwingTwistConstraint.cpp

@@ -388,7 +388,7 @@ void SwingTwistConstraint::dynamicallyAdjustLimits(const glm::quat& rotation) {
         glm::vec3 swungY = swingRotation * Vectors::UNIT_Y;
         glm::vec3 swingAxis = glm::cross(Vectors::UNIT_Y, swungY);
         float theta = atan2f(-swingAxis.z, swingAxis.x);
-        if (isnan(theta)) {
+        if (glm::isnan(theta)) {
             // atan2f() will only return NaN if either of its arguments is NaN, which can only
             // happen if we've been given a bad rotation.  Since a NaN value here could potentially
             // cause a crash (we use the value of theta to compute indices into a std::vector)

libraries/audio/src/AudioConstants.h

@@ -29,6 +29,7 @@ namespace AudioConstants {
     const int NETWORK_FRAME_SAMPLES_PER_CHANNEL = NETWORK_FRAME_BYTES_PER_CHANNEL / sizeof(AudioSample);
     const float NETWORK_FRAME_SECS = (AudioConstants::NETWORK_FRAME_SAMPLES_PER_CHANNEL / float(AudioConstants::SAMPLE_RATE));
     const float NETWORK_FRAME_MSECS = NETWORK_FRAME_SECS * 1000.0f;
+    const float NETWORK_FRAMES_PER_SEC =  1.0f / NETWORK_FRAME_SECS;
 
     // be careful with overflows when using this constant
     const int NETWORK_FRAME_USECS = static_cast<int>(NETWORK_FRAME_MSECS * 1000.0f);

libraries/display-plugins/src/display-plugins/CompositorHelper.cpp

@@ -34,6 +34,7 @@ static const float reticleSize = TWO_PI / 100.0f;
 static QString _tooltipId;
 
 const uvec2 CompositorHelper::VIRTUAL_SCREEN_SIZE = uvec2(3960, 1188); // ~10% more pixel density than old version, 72dx240d FOV
+const QRect CompositorHelper::VIRTUAL_SCREEN_RECOMMENDED_OVERLAY_RECT = QRect(956, 0, 2048, 1188); // don't include entire width only center 2048
 const float CompositorHelper::VIRTUAL_UI_ASPECT_RATIO = (float)VIRTUAL_SCREEN_SIZE.x / (float)VIRTUAL_SCREEN_SIZE.y;
 const vec2 CompositorHelper::VIRTUAL_UI_TARGET_FOV = vec2(PI * 3.0f / 2.0f, PI * 3.0f / 2.0f / VIRTUAL_UI_ASPECT_RATIO);
 const vec2 CompositorHelper::MOUSE_EXTENTS_ANGULAR_SIZE = vec2(PI * 2.0f, PI * 0.95f); // horizontal: full sphere,  vertical: ~5deg from poles

libraries/display-plugins/src/display-plugins/CompositorHelper.h

@@ -42,6 +42,7 @@ class CompositorHelper : public QObject, public Dependency {
     Q_PROPERTY(bool reticleOverDesktop READ getReticleOverDesktop WRITE setReticleOverDesktop)
 public:
     static const uvec2 VIRTUAL_SCREEN_SIZE;
+    static const QRect VIRTUAL_SCREEN_RECOMMENDED_OVERLAY_RECT;
     static const float VIRTUAL_UI_ASPECT_RATIO;
     static const vec2 VIRTUAL_UI_TARGET_FOV;
     static const vec2 MOUSE_EXTENTS_ANGULAR_SIZE;

libraries/display-plugins/src/display-plugins/hmd/HmdDisplayPlugin.cpp

@@ -34,6 +34,11 @@ glm::uvec2 HmdDisplayPlugin::getRecommendedUiSize() const {
     return CompositorHelper::VIRTUAL_SCREEN_SIZE;
 }
 
+QRect HmdDisplayPlugin::getRecommendedOverlayRect() const {
+    return CompositorHelper::VIRTUAL_SCREEN_RECOMMENDED_OVERLAY_RECT;
+}
+
+
 bool HmdDisplayPlugin::internalActivate() {
     _monoPreview = _container->getBoolSetting("monoPreview", DEFAULT_MONO_VIEW);
 

libraries/display-plugins/src/display-plugins/hmd/HmdDisplayPlugin.h

@@ -26,6 +26,8 @@ public:
     void setEyeRenderPose(uint32_t frameIndex, Eye eye, const glm::mat4& pose) override final;
     bool isDisplayVisible() const override { return isHmdMounted(); }
 
+    QRect getRecommendedOverlayRect() const override final;
+
     virtual glm::mat4 getHeadPose() const override;
 
 

libraries/entities-renderer/src/EntityTreeRenderer.cpp

@@ -75,9 +75,29 @@ EntityTreeRenderer::~EntityTreeRenderer() {
     //       it is registered with ScriptEngines, which will call deleteLater for us.
 }
 
+int EntityTreeRenderer::_entitiesScriptEngineCount = 0;
+
+void EntityTreeRenderer::setupEntitiesScriptEngine() {
+    QSharedPointer<ScriptEngine> oldEngine = _entitiesScriptEngine; // save the old engine through this function, so the EntityScriptingInterface doesn't have problems with it.
+    _entitiesScriptEngine = QSharedPointer<ScriptEngine>(new ScriptEngine(NO_SCRIPT, QString("Entities %1").arg(++_entitiesScriptEngineCount)), &QObject::deleteLater);
+    _scriptingServices->registerScriptEngineWithApplicationServices(_entitiesScriptEngine.data());
+    _entitiesScriptEngine->runInThread();
+    DependencyManager::get<EntityScriptingInterface>()->setEntitiesScriptEngine(_entitiesScriptEngine.data());
+}
+
 void EntityTreeRenderer::clear() {
     leaveAllEntities();
-    _entitiesScriptEngine->unloadAllEntityScripts();
+    if (_entitiesScriptEngine) {
+        _entitiesScriptEngine->unloadAllEntityScripts();
+        _entitiesScriptEngine->stop();
+    }
+
+    if (_wantScripts && !_shuttingDown) {
+        // NOTE: you can't actually need to delete it here because when we call setupEntitiesScriptEngine it will
+        //       assign a new instance to our shared pointer, which will deref the old instance and ultimately call
+        //       the custom deleter which calls deleteLater
+        setupEntitiesScriptEngine();
+    }
 
     auto scene = _viewState->getMain3DScene();
     render::PendingChanges pendingChanges;
@@ -94,7 +114,7 @@ void EntityTreeRenderer::reloadEntityScripts() {
     _entitiesScriptEngine->unloadAllEntityScripts();
     foreach(auto entity, _entitiesInScene) {
         if (!entity->getScript().isEmpty()) {
-            _entitiesScriptEngine->loadEntityScript(entity->getEntityItemID(), entity->getScript(), true);
+            ScriptEngine::loadEntityScript(_entitiesScriptEngine, entity->getEntityItemID(), entity->getScript(), true);
         }
     }
 }
@@ -105,10 +125,7 @@ void EntityTreeRenderer::init() {
     entityTree->setFBXService(this);
 
     if (_wantScripts) {
-        _entitiesScriptEngine = new ScriptEngine(NO_SCRIPT, "Entities");
-        _scriptingServices->registerScriptEngineWithApplicationServices(_entitiesScriptEngine);
-        _entitiesScriptEngine->runInThread();
-        DependencyManager::get<EntityScriptingInterface>()->setEntitiesScriptEngine(_entitiesScriptEngine);
+        setupEntitiesScriptEngine();
     }
 
     forceRecheckEntities(); // setup our state to force checking our inside/outsideness of entities
@@ -122,6 +139,8 @@ void EntityTreeRenderer::init() {
 void EntityTreeRenderer::shutdown() {
     _entitiesScriptEngine->disconnectNonEssentialSignals(); // disconnect all slots/signals from the script engine, except essential
     _shuttingDown = true;
+
+    clear(); // always clear() on shutdown
 }
 
 void EntityTreeRenderer::setTree(OctreePointer newTree) {
@@ -763,7 +782,7 @@ void EntityTreeRenderer::checkAndCallPreload(const EntityItemID& entityID, const
         if (entity && entity->shouldPreloadScript()) {
             QString scriptUrl = entity->getScript();
             scriptUrl = ResourceManager::normalizeURL(scriptUrl);
-            _entitiesScriptEngine->loadEntityScript(entityID, scriptUrl, reload);
+            ScriptEngine::loadEntityScript(_entitiesScriptEngine, entityID, scriptUrl, reload);
             entity->scriptHasPreloaded();
         }
     }

libraries/entities-renderer/src/EntityTreeRenderer.h

@@ -126,6 +126,8 @@ protected:
     }
 
 private:
+    void setupEntitiesScriptEngine();
+
     void addEntityToScene(EntityItemPointer entity);
     bool findBestZoneAndMaybeContainingEntities(const glm::vec3& avatarPosition, QVector<EntityItemID>* entitiesContainingAvatar);
 
@@ -155,7 +157,7 @@ private:
     NetworkTexturePointer _ambientTexture;
 
     bool _wantScripts;
-    ScriptEngine* _entitiesScriptEngine;
+    QSharedPointer<ScriptEngine> _entitiesScriptEngine;
 
     bool isCollisionOwner(const QUuid& myNodeID, EntityTreePointer entityTree,
                           const EntityItemID& id, const Collision& collision);
@@ -196,6 +198,8 @@ private:
     QHash<EntityItemID, EntityItemPointer> _entitiesInScene;
     // For Scene.shouldRenderEntities
     QList<EntityItemID> _entityIDsLastInScene;
+
+    static int _entitiesScriptEngineCount;
 };
 
 

libraries/entities-renderer/src/RenderableProceduralItemShader.h

@@ -18,7 +18,7 @@
 //
 
 
-const QString SHADER_COMMON = R"SHADER(#version 410 core
+const QString SHADER_COMMON = R"SHADER(
 layout(location = 0) out vec4 _fragColor0;
 layout(location = 1) out vec4 _fragColor1;
 layout(location = 2) out vec4 _fragColor2;

libraries/entities/src/EntityScriptingInterface.cpp

@@ -414,7 +414,13 @@ void EntityScriptingInterface::deleteEntity(QUuid id) {
     }
 }
 
+void EntityScriptingInterface::setEntitiesScriptEngine(EntitiesScriptEngineProvider* engine) {
+    std::lock_guard<std::mutex> lock(_entitiesScriptEngineLock);
+    _entitiesScriptEngine = engine;
+}
+
 void EntityScriptingInterface::callEntityMethod(QUuid id, const QString& method, const QStringList& params) {
+    std::lock_guard<std::mutex> lock(_entitiesScriptEngineLock);
     if (_entitiesScriptEngine) {
         EntityItemID entityID{ id };
         _entitiesScriptEngine->callEntityScriptMethod(entityID, method, params);

libraries/entities/src/EntityScriptingInterface.h

@@ -71,7 +71,7 @@ public:
 
     void setEntityTree(EntityTreePointer modelTree);
     EntityTreePointer getEntityTree() { return _entityTree; }
-    void setEntitiesScriptEngine(EntitiesScriptEngineProvider* engine) { _entitiesScriptEngine = engine; }
+    void setEntitiesScriptEngine(EntitiesScriptEngineProvider* engine);
     float calculateCost(float mass, float oldVelocity, float newVelocity);
 public slots:
 
@@ -214,6 +214,8 @@ private:
         bool precisionPicking, const QVector<EntityItemID>& entityIdsToInclude, const QVector<EntityItemID>& entityIdsToDiscard);
 
     EntityTreePointer _entityTree;
+
+    std::mutex _entitiesScriptEngineLock;
     EntitiesScriptEngineProvider* _entitiesScriptEngine { nullptr };
     
     bool _bidOnSimulationOwnership { false };

libraries/gl/src/gl/OffscreenQmlSurface.cpp

@@ -83,11 +83,18 @@ protected:
     };
 
     friend class OffscreenQmlSurface;
+
+    QJsonObject getGLContextData();
+
     Queue _queue;
     QMutex _mutex;
     QWaitCondition _waitCondition;
     std::atomic<bool> _rendering { false };
 
+    QJsonObject _glData;
+    QMutex _glMutex;
+    QWaitCondition _glWait;
+
 private:
     // Event-driven methods
     void init();
@@ -211,22 +218,31 @@ void OffscreenQmlRenderThread::setupFbo() {
     }
 }
 
+QJsonObject OffscreenQmlRenderThread::getGLContextData() {
+    _glMutex.lock();
+    if (_glData.isEmpty()) {
+        _glWait.wait(&_glMutex);
+    }
+    _glMutex.unlock();
+    return _glData;
+}
+
 void OffscreenQmlRenderThread::init() {
     qDebug() << "Initializing QML Renderer";
 
-    connect(_renderControl, &QQuickRenderControl::renderRequested, _surface, &OffscreenQmlSurface::requestRender);
-    connect(_renderControl, &QQuickRenderControl::sceneChanged, _surface, &OffscreenQmlSurface::requestUpdate);
-
     if (!_canvas.makeCurrent()) {
         qWarning("Failed to make context current on QML Renderer Thread");
         _quit = true;
         return;
     }
 
-    // Expose GL data to QML
-    auto glData = getGLContextData();
-    auto setGL = [=]{ _surface->getRootContext()->setContextProperty("GL", glData); };
-    _surface->executeOnUiThread(setGL);
+    _glMutex.lock();
+    _glData = ::getGLContextData();
+    _glMutex.unlock();
+    _glWait.wakeAll();
+
+    connect(_renderControl, &QQuickRenderControl::renderRequested, _surface, &OffscreenQmlSurface::requestRender);
+    connect(_renderControl, &QQuickRenderControl::sceneChanged, _surface, &OffscreenQmlSurface::requestUpdate);
 
     _renderControl->initialize(_canvas.getContext());
     setupFbo();
@@ -386,14 +402,16 @@ void OffscreenQmlSurface::create(QOpenGLContext* shareContext) {
         _qmlEngine->setIncubationController(_renderer->_quickWindow->incubationController());
     }
 
+    _qmlEngine->rootContext()->setContextProperty("GL", _renderer->getGLContextData());
+    _qmlEngine->rootContext()->setContextProperty("offscreenWindow", QVariant::fromValue(getWindow()));
+    _qmlComponent = new QQmlComponent(_qmlEngine);
+
     // When Quick says there is a need to render, we will not render immediately. Instead,
     // a timer with a small interval is used to get better performance.
-    _updateTimer.setInterval(MIN_TIMER_MS);
     QObject::connect(&_updateTimer, &QTimer::timeout, this, &OffscreenQmlSurface::updateQuick);
     QObject::connect(qApp, &QCoreApplication::aboutToQuit, this, &OffscreenQmlSurface::onAboutToQuit);
+    _updateTimer.setInterval(MIN_TIMER_MS);
     _updateTimer.start();
-    _qmlComponent = new QQmlComponent(_qmlEngine);
-    _qmlEngine->rootContext()->setContextProperty("offscreenWindow", QVariant::fromValue(getWindow()));
 }
 
 void OffscreenQmlSurface::resize(const QSize& newSize_) {

libraries/gpu/src/gpu/Config.slh

@@ -13,11 +13,11 @@
 
 <@if GLPROFILE == PC_GL @>
     <@def GPU_FEATURE_PROFILE GPU_CORE@>
-    <@def VERSION_HEADER #version 410 core@>
+    <@def VERSION_HEADER //PC 410 core@>
 <@elif GLPROFILE == MAC_GL @>
     <@def GPU_FEATURE_PROFILE GPU_CORE@>
-    <@def VERSION_HEADER #version 410 core@>
+    <@def VERSION_HEADER //MAC 410 core@>
 <@else@>
     <@def GPU_FEATURE_PROFILE GPU_CORE@>
-    <@def VERSION_HEADER #version 410 core@>
+    <@def VERSION_HEADER //410 core@>
 <@endif@>

libraries/gpu/src/gpu/Context.h

@@ -39,6 +39,8 @@ public:
     int _DSNumAPIDrawcalls = 0;
     int _DSNumDrawcalls = 0;
     int _DSNumTriangles = 0;
+
+    int _PSNumSetPipelines = 0;
  
     ContextStats() {}
     ContextStats(const ContextStats& stats) = default;

libraries/gpu/src/gpu/GLBackend.cpp

@@ -461,8 +461,10 @@ void GLBackend::resetStages() {
 
 #define ADD_COMMAND_GL(call) _commands.push_back(COMMAND_##call); _commandOffsets.push_back(_params.size());
 
-//#define DO_IT_NOW(call, offset) runLastCommand();
-#define DO_IT_NOW(call, offset) 
+#define GET_UNIFORM_LOCATION(shaderUniformLoc) shaderUniformLoc
+// THis will be used in the next PR
+// #define GET_UNIFORM_LOCATION(shaderUniformLoc) _pipeline._programShader->getUniformLocation(shaderUniformLoc)
+
 
 void Batch::_glActiveBindTexture(GLenum unit, GLenum target, GLuint texture) {
     // clean the cache on the texture unit we are going to use so the next call to setResourceTexture() at the same slot works fine
@@ -472,14 +474,11 @@ void Batch::_glActiveBindTexture(GLenum unit, GLenum target, GLuint texture) {
     _params.push_back(texture);
     _params.push_back(target);
     _params.push_back(unit);
-
-
-    DO_IT_NOW(_glActiveBindTexture, 3);
 }
 void GLBackend::do_glActiveBindTexture(Batch& batch, size_t paramOffset) {
     glActiveTexture(batch._params[paramOffset + 2]._uint);
     glBindTexture(
-        batch._params[paramOffset + 1]._uint,
+        GET_UNIFORM_LOCATION(batch._params[paramOffset + 1]._uint),
         batch._params[paramOffset + 0]._uint);
 
     (void) CHECK_GL_ERROR();
@@ -492,8 +491,6 @@ void Batch::_glUniform1i(GLint location, GLint v0) {
     ADD_COMMAND_GL(glUniform1i);
     _params.push_back(v0);
     _params.push_back(location);
-    
-    DO_IT_NOW(_glUniform1i, 1);
 }
 void GLBackend::do_glUniform1i(Batch& batch, size_t paramOffset) {
     if (_pipeline._program == 0) {
@@ -503,7 +500,7 @@ void GLBackend::do_glUniform1i(Batch& batch, size_t paramOffset) {
     }
     updatePipeline();
     glUniform1f(
-        batch._params[paramOffset + 1]._int,
+        GET_UNIFORM_LOCATION(batch._params[paramOffset + 1]._int),
         batch._params[paramOffset + 0]._int);
     (void) CHECK_GL_ERROR();
 }
@@ -515,8 +512,6 @@ void Batch::_glUniform1f(GLint location, GLfloat v0) {
     ADD_COMMAND_GL(glUniform1f);
     _params.push_back(v0);
     _params.push_back(location);
-
-    DO_IT_NOW(_glUniform1f, 1);
 }
 void GLBackend::do_glUniform1f(Batch& batch, size_t paramOffset) {
     if (_pipeline._program == 0) {
@@ -527,7 +522,7 @@ void GLBackend::do_glUniform1f(Batch& batch, size_t paramOffset) {
     updatePipeline();
 
     glUniform1f(
-        batch._params[paramOffset + 1]._int,
+        GET_UNIFORM_LOCATION(batch._params[paramOffset + 1]._int),
         batch._params[paramOffset + 0]._float);
     (void) CHECK_GL_ERROR();
 }
@@ -538,8 +533,6 @@ void Batch::_glUniform2f(GLint location, GLfloat v0, GLfloat v1) {
     _params.push_back(v1);
     _params.push_back(v0);
     _params.push_back(location);
-
-    DO_IT_NOW(_glUniform2f, 1);
 }
 
 void GLBackend::do_glUniform2f(Batch& batch, size_t paramOffset) {
@@ -550,7 +543,7 @@ void GLBackend::do_glUniform2f(Batch& batch, size_t paramOffset) {
     }
     updatePipeline();
     glUniform2f(
-        batch._params[paramOffset + 2]._int,
+        GET_UNIFORM_LOCATION(batch._params[paramOffset + 2]._int),
         batch._params[paramOffset + 1]._float,
         batch._params[paramOffset + 0]._float);
     (void) CHECK_GL_ERROR();
@@ -563,8 +556,6 @@ void Batch::_glUniform3f(GLint location, GLfloat v0, GLfloat v1, GLfloat v2) {
     _params.push_back(v1);
     _params.push_back(v0);
     _params.push_back(location);
-
-    DO_IT_NOW(_glUniform3f, 1);
 }
 
 void GLBackend::do_glUniform3f(Batch& batch, size_t paramOffset) {
@@ -575,7 +566,7 @@ void GLBackend::do_glUniform3f(Batch& batch, size_t paramOffset) {
     }
     updatePipeline();
     glUniform3f(
-        batch._params[paramOffset + 3]._int,
+        GET_UNIFORM_LOCATION(batch._params[paramOffset + 3]._int),
         batch._params[paramOffset + 2]._float,
         batch._params[paramOffset + 1]._float,
         batch._params[paramOffset + 0]._float);
@@ -591,8 +582,6 @@ void Batch::_glUniform4f(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLf
     _params.push_back(v1);
     _params.push_back(v0);
     _params.push_back(location);
-
-    DO_IT_NOW(_glUniform4f, 1);
 }
 
 
@@ -604,7 +593,7 @@ void GLBackend::do_glUniform4f(Batch& batch, size_t paramOffset) {
     }
     updatePipeline();
     glUniform4f(
-        batch._params[paramOffset + 4]._int,
+        GET_UNIFORM_LOCATION(batch._params[paramOffset + 4]._int),
         batch._params[paramOffset + 3]._float,
         batch._params[paramOffset + 2]._float,
         batch._params[paramOffset + 1]._float,
@@ -619,8 +608,6 @@ void Batch::_glUniform3fv(GLint location, GLsizei count, const GLfloat* value) {
     _params.push_back(cacheData(count * VEC3_SIZE, value));
     _params.push_back(count);
     _params.push_back(location);
-
-    DO_IT_NOW(_glUniform3fv, 3);
 }
 void GLBackend::do_glUniform3fv(Batch& batch, size_t paramOffset) {
     if (_pipeline._program == 0) {
@@ -630,7 +617,7 @@ void GLBackend::do_glUniform3fv(Batch& batch, size_t paramOffset) {
     }
     updatePipeline();
     glUniform3fv(
-        batch._params[paramOffset + 2]._int,
+        GET_UNIFORM_LOCATION(batch._params[paramOffset + 2]._int),
         batch._params[paramOffset + 1]._uint,
         (const GLfloat*)batch.editData(batch._params[paramOffset + 0]._uint));
 
@@ -645,8 +632,6 @@ void Batch::_glUniform4fv(GLint location, GLsizei count, const GLfloat* value) {
     _params.push_back(cacheData(count * VEC4_SIZE, value));
     _params.push_back(count);
     _params.push_back(location);
-
-    DO_IT_NOW(_glUniform4fv, 3);
 }
 void GLBackend::do_glUniform4fv(Batch& batch, size_t paramOffset) {
     if (_pipeline._program == 0) {
@@ -656,7 +641,7 @@ void GLBackend::do_glUniform4fv(Batch& batch, size_t paramOffset) {
     }
     updatePipeline();
     
-    GLint location = batch._params[paramOffset + 2]._int;
+    GLint location = GET_UNIFORM_LOCATION(batch._params[paramOffset + 2]._int);
     GLsizei count = batch._params[paramOffset + 1]._uint;
     const GLfloat* value = (const GLfloat*)batch.editData(batch._params[paramOffset + 0]._uint);
     glUniform4fv(location, count, value);
@@ -671,8 +656,6 @@ void Batch::_glUniform4iv(GLint location, GLsizei count, const GLint* value) {
     _params.push_back(cacheData(count * VEC4_SIZE, value));
     _params.push_back(count);
     _params.push_back(location);
-
-    DO_IT_NOW(_glUniform4iv, 3);
 }
 void GLBackend::do_glUniform4iv(Batch& batch, size_t paramOffset) {
     if (_pipeline._program == 0) {
@@ -682,7 +665,7 @@ void GLBackend::do_glUniform4iv(Batch& batch, size_t paramOffset) {
     }
     updatePipeline();
     glUniform4iv(
-        batch._params[paramOffset + 2]._int,
+        GET_UNIFORM_LOCATION(batch._params[paramOffset + 2]._int),
         batch._params[paramOffset + 1]._uint,
         (const GLint*)batch.editData(batch._params[paramOffset + 0]._uint));
 
@@ -697,8 +680,6 @@ void Batch::_glUniformMatrix4fv(GLint location, GLsizei count, GLboolean transpo
     _params.push_back(transpose);
     _params.push_back(count);
     _params.push_back(location);
-
-    DO_IT_NOW(_glUniformMatrix4fv, 4);
 }
 void GLBackend::do_glUniformMatrix4fv(Batch& batch, size_t paramOffset) {
     if (_pipeline._program == 0) {
@@ -708,7 +689,7 @@ void GLBackend::do_glUniformMatrix4fv(Batch& batch, size_t paramOffset) {
     }
     updatePipeline();
     glUniformMatrix4fv(
-        batch._params[paramOffset + 3]._int,
+        GET_UNIFORM_LOCATION(batch._params[paramOffset + 3]._int),
         batch._params[paramOffset + 2]._uint,
         batch._params[paramOffset + 1]._uint,
         (const GLfloat*)batch.editData(batch._params[paramOffset + 0]._uint));
@@ -722,8 +703,6 @@ void Batch::_glColor4f(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha)
     _params.push_back(blue);
     _params.push_back(green);
     _params.push_back(red);
-
-    DO_IT_NOW(_glColor4f, 4);
 }
 void GLBackend::do_glColor4f(Batch& batch, size_t paramOffset) {
 

libraries/gpu/src/gpu/GLBackend.h

@@ -153,17 +153,42 @@ public:
 
     class GLShader : public GPUObject {
     public:
-        GLuint _shader;
-        GLuint _program;
+        enum Version {
+            Mono = 0,
+
+            NumVersions
+        };
+
+        struct ShaderObject {
+            GLuint glshader{ 0 };
+            GLuint glprogram{ 0 };
+            GLint transformCameraSlot{ -1 };
+            GLint transformObjectSlot{ -1 };
+        };
+
+        using ShaderObjects = std::array< ShaderObject, NumVersions >;
+        using UniformMapping = std::map<GLint, GLint>;
+        using UniformMappingVersions = std::vector<UniformMapping>;
 
-        GLint _transformCameraSlot = -1;
-        GLint _transformObjectSlot = -1;
 
         GLShader();
         ~GLShader();
+
+        ShaderObjects _shaderObjects;
+        UniformMappingVersions _uniformMappings;
+
+        GLuint getProgram() const {
+            return _shaderObjects[Mono].glprogram;
+        }
+
+        GLint getUniformLocation(GLint srcLoc) {
+            return srcLoc;
+            // THIS will be used in the next PR
+            // return _uniformMappings[Mono][srcLoc];
+        }
+
     };
     static GLShader* syncGPUObject(const Shader& shader);
-    static GLuint getShaderID(const ShaderPointer& shader);
 
     class GLState : public GPUObject {
     public:
@@ -464,6 +489,7 @@ protected:
         PipelinePointer _pipeline;
 
         GLuint _program;
+        GLShader* _programShader;
         bool _invalidProgram;
 
         State::Data _stateCache;
@@ -475,6 +501,7 @@ protected:
         PipelineStageState() :
             _pipeline(),
             _program(0),
+            _programShader(nullptr),
             _invalidProgram(false),
             _stateCache(State::DEFAULT),
             _stateSignatureCache(0),

libraries/gpu/src/gpu/GLBackendPipeline.cpp

@@ -64,11 +64,15 @@ void GLBackend::do_setPipeline(Batch& batch, size_t paramOffset) {
         return;
     }
 
+    // A true new Pipeline
+    _stats._PSNumSetPipelines++;
+
     // null pipeline == reset
     if (!pipeline) {
         _pipeline._pipeline.reset();
 
         _pipeline._program = 0;
+        _pipeline._programShader = nullptr;
         _pipeline._invalidProgram = true;
 
         _pipeline._state = nullptr;
@@ -80,8 +84,10 @@ void GLBackend::do_setPipeline(Batch& batch, size_t paramOffset) {
         }
 
         // check the program cache
-        if (_pipeline._program != pipelineObject->_program->_program) {
-            _pipeline._program = pipelineObject->_program->_program;
+        GLuint glprogram = pipelineObject->_program->getProgram();
+        if (_pipeline._program != glprogram) {
+            _pipeline._program = glprogram;
+            _pipeline._programShader = pipelineObject->_program;
             _pipeline._invalidProgram = true;
         }
 
@@ -142,6 +148,7 @@ void GLBackend::resetPipelineStage() {
     // Second the shader side
     _pipeline._invalidProgram = false;
     _pipeline._program = 0;
+    _pipeline._programShader = nullptr;
     _pipeline._pipeline.reset();
     glUseProgram(0);
 }

libraries/gpu/src/gpu/GLBackendShader.cpp

@@ -13,27 +13,205 @@
 
 using namespace gpu;
 
-GLBackend::GLShader::GLShader() :
-    _shader(0),
-    _program(0)
-{}
+GLBackend::GLShader::GLShader()
+{
+}
 
 GLBackend::GLShader::~GLShader() {
-    if (_shader != 0) {
-        glDeleteShader(_shader);
-    }
-    if (_program != 0) {
-        glDeleteProgram(_program);
+    for (auto& so : _shaderObjects) {
+        if (so.glshader != 0) {
+            glDeleteShader(so.glshader);
+        }
+        if (so.glprogram != 0) {
+            glDeleteProgram(so.glprogram);
+        }
     }
 }
 
-void makeBindings(GLBackend::GLShader* shader) {
-    if(!shader || !shader->_program) {
+bool compileShader(GLenum shaderDomain, const std::string& shaderSource, const std::string& defines, GLuint &shaderObject, GLuint &programObject) {
+    if (shaderSource.empty()) {
+        qCDebug(gpulogging) << "GLShader::compileShader - no GLSL shader source code ? so failed to create";
+        return false;
+    }
+
+    // Create the shader object
+    GLuint glshader = glCreateShader(shaderDomain);
+    if (!glshader) {
+        qCDebug(gpulogging) << "GLShader::compileShader - failed to create the gl shader object";
+        return nullptr;
+    }
+
+    // Assign the source
+    const int NUM_SOURCE_STRINGS = 2;
+    const GLchar* srcstr[] = { defines.c_str(), shaderSource.c_str() };
+    glShaderSource(glshader, NUM_SOURCE_STRINGS, srcstr, NULL);
+
+    // Compile !
+    glCompileShader(glshader);
+
+    // check if shader compiled
+    GLint compiled = 0;
+    glGetShaderiv(glshader, GL_COMPILE_STATUS, &compiled);
+
+    // if compilation fails
+    if (!compiled) {
+        // save the source code to a temp file so we can debug easily
+        /* std::ofstream filestream;
+        filestream.open("debugshader.glsl");
+        if (filestream.is_open()) {
+        filestream << shaderSource->source;
+        filestream.close();
+        }
+        */
+
+        GLint infoLength = 0;
+        glGetShaderiv(glshader, GL_INFO_LOG_LENGTH, &infoLength);
+
+        char* temp = new char[infoLength];
+        glGetShaderInfoLog(glshader, infoLength, NULL, temp);
+
+
+        /*
+        filestream.open("debugshader.glsl.info.txt");
+        if (filestream.is_open()) {
+        filestream << std::string(temp);
+        filestream.close();
+        }
+        */
+
+        qCWarning(gpulogging) << "GLShader::compileShader - failed to compile the gl shader object:";
+        for (auto s : srcstr) {
+            qCWarning(gpulogging) << s;
+        }
+        qCWarning(gpulogging) << "GLShader::compileShader - errors:";
+        qCWarning(gpulogging) << temp;
+        delete[] temp;
+
+        glDeleteShader(glshader);
+        return false;
+    }
+
+    GLuint glprogram = 0;
+#ifdef SEPARATE_PROGRAM
+    // so far so good, program is almost done, need to link:
+    GLuint glprogram = glCreateProgram();
+    if (!glprogram) {
+        qCDebug(gpulogging) << "GLShader::compileShader - failed to create the gl shader & gl program object";
+        return false;
+    }
+
+    glProgramParameteri(glprogram, GL_PROGRAM_SEPARABLE, GL_TRUE);
+    glAttachShader(glprogram, glshader);
+    glLinkProgram(glprogram);
+
+    GLint linked = 0;
+    glGetProgramiv(glprogram, GL_LINK_STATUS, &linked);
+
+    if (!linked) {
+        /*
+        // save the source code to a temp file so we can debug easily
+        std::ofstream filestream;
+        filestream.open("debugshader.glsl");
+        if (filestream.is_open()) {
+        filestream << shaderSource->source;
+        filestream.close();
+        }
+        */
+
+        GLint infoLength = 0;
+        glGetProgramiv(glprogram, GL_INFO_LOG_LENGTH, &infoLength);
+
+        char* temp = new char[infoLength];
+        glGetProgramInfoLog(glprogram, infoLength, NULL, temp);
+
+        qCDebug(gpulogging) << "GLShader::compileShader -  failed to LINK the gl program object :";
+        qCDebug(gpulogging) << temp;
+
+        /*
+        filestream.open("debugshader.glsl.info.txt");
+        if (filestream.is_open()) {
+        filestream << String(temp);
+        filestream.close();
+        }
+        */
+        delete[] temp;
+
+        glDeleteShader(glshader);
+        glDeleteProgram(glprogram);
+        return false;
+    }
+#endif
+
+    shaderObject = glshader;
+    programObject = glprogram;
+
+    return true;
+}
+
+GLuint compileProgram(const std::vector<GLuint>& glshaders) {
+    // A brand new program:
+    GLuint glprogram = glCreateProgram();
+    if (!glprogram) {
+        qCDebug(gpulogging) << "GLShader::compileProgram - failed to create the gl program object";
+        return 0;
+    }
+
+    // glProgramParameteri(glprogram, GL_PROGRAM_, GL_TRUE);
+    // Create the program from the sub shaders
+    for (auto so : glshaders) {
+        glAttachShader(glprogram, so);
+    }
+
+    // Link!
+    glLinkProgram(glprogram);
+
+    GLint linked = 0;
+    glGetProgramiv(glprogram, GL_LINK_STATUS, &linked);
+
+    if (!linked) {
+        /*
+        // save the source code to a temp file so we can debug easily
+        std::ofstream filestream;
+        filestream.open("debugshader.glsl");
+        if (filestream.is_open()) {
+        filestream << shaderSource->source;
+        filestream.close();
+        }
+        */
+
+        GLint infoLength = 0;
+        glGetProgramiv(glprogram, GL_INFO_LOG_LENGTH, &infoLength);
+
+        char* temp = new char[infoLength];
+        glGetProgramInfoLog(glprogram, infoLength, NULL, temp);
+
+        qCDebug(gpulogging) << "GLShader::compileProgram -  failed to LINK the gl program object :";
+        qCDebug(gpulogging) << temp;
+
+        /*
+        filestream.open("debugshader.glsl.info.txt");
+        if (filestream.is_open()) {
+        filestream << std::string(temp);
+        filestream.close();
+        }
+        */
+        delete[] temp;
+
+        glDeleteProgram(glprogram);
+        return 0;
+    }
+
+    return glprogram;
+}
+
+
+void makeProgramBindings(GLBackend::GLShader::ShaderObject& shaderObject) {
+    if (!shaderObject.glprogram) {
         return;
     }
-    GLuint glprogram = shader->_program;
+    GLuint glprogram = shaderObject.glprogram;
     GLint loc = -1;
-     
+
     //Check for gpu specific attribute slotBindings
     loc = glGetAttribLocation(glprogram, "inPosition");
     if (loc >= 0 && loc != gpu::Stream::POSITION) {
@@ -96,226 +274,111 @@ void makeBindings(GLBackend::GLShader* shader) {
     loc = glGetProgramResourceIndex(glprogram, GL_SHADER_STORAGE_BLOCK, "transformObjectBuffer");
     if (loc >= 0) {
         glShaderStorageBlockBinding(glprogram, loc, gpu::TRANSFORM_OBJECT_SLOT);
-        shader->_transformObjectSlot = gpu::TRANSFORM_OBJECT_SLOT;
+        shaderObject.transformObjectSlot = gpu::TRANSFORM_OBJECT_SLOT;
     }
 #else
     loc = glGetUniformLocation(glprogram, "transformObjectBuffer");
     if (loc >= 0) {
         glProgramUniform1i(glprogram, loc, gpu::TRANSFORM_OBJECT_SLOT);
-        shader->_transformObjectSlot = gpu::TRANSFORM_OBJECT_SLOT;
+        shaderObject.transformObjectSlot = gpu::TRANSFORM_OBJECT_SLOT;
     }
 #endif
 
     loc = glGetUniformBlockIndex(glprogram, "transformCameraBuffer");
     if (loc >= 0) {
         glUniformBlockBinding(glprogram, loc, gpu::TRANSFORM_CAMERA_SLOT);
-        shader->_transformCameraSlot = gpu::TRANSFORM_CAMERA_SLOT;
+        shaderObject.transformCameraSlot = gpu::TRANSFORM_CAMERA_SLOT;
     }
 
     (void)CHECK_GL_ERROR();
 }
 
-GLBackend::GLShader* compileShader(const Shader& shader) {
+GLBackend::GLShader* compileBackendShader(const Shader& shader) {
     // Any GLSLprogram ? normally yes...
     const std::string& shaderSource = shader.getSource().getCode();
-    if (shaderSource.empty()) {
-        qCDebug(gpulogging) << "GLShader::compileShader - no GLSL shader source code ? so failed to create";
-        return nullptr;
-    }
+
+    // GLSL version
+    const std::string glslVersion = {
+        "#version 410 core"
+    };
 
     // Shader domain
-    const GLenum SHADER_DOMAINS[2] = { GL_VERTEX_SHADER, GL_FRAGMENT_SHADER };
+    const int NUM_SHADER_DOMAINS = 2;
+    const GLenum SHADER_DOMAINS[NUM_SHADER_DOMAINS] = {
+        GL_VERTEX_SHADER,
+        GL_FRAGMENT_SHADER
+    };
     GLenum shaderDomain = SHADER_DOMAINS[shader.getType()];
 
-    // Create the shader object
-    GLuint glshader = glCreateShader(shaderDomain);
-    if (!glshader) {
-        qCDebug(gpulogging) << "GLShader::compileShader - failed to create the gl shader object";
-        return nullptr;
-    }
+    // Domain specific defines
+    const std::string domainDefines[NUM_SHADER_DOMAINS] = {
+        "#define VERTEX_SHADER",
+        "#define PIXEL_SHADER"
+    };
 
-    // Assign the source
-    const GLchar* srcstr = shaderSource.c_str();
-    glShaderSource(glshader, 1, &srcstr, NULL);
 
-    // Compile !
-    glCompileShader(glshader);
 
-    // check if shader compiled
-    GLint compiled = 0;
-    glGetShaderiv(glshader, GL_COMPILE_STATUS, &compiled);
+    // Versions specific of the shader
+    const std::string versionDefines[GLBackend::GLShader::NumVersions] = {
+        ""
+    };
 
-    // if compilation fails
-    if (!compiled) {
-        // save the source code to a temp file so we can debug easily
-       /* std::ofstream filestream;
-        filestream.open("debugshader.glsl");
-        if (filestream.is_open()) {
-            filestream << shaderSource->source;
-            filestream.close();
+    GLBackend::GLShader::ShaderObjects shaderObjects;
+
+    for (int version = 0; version < GLBackend::GLShader::NumVersions; version++) {
+        auto& shaderObject = shaderObjects[version];
+
+        std::string shaderDefines = glslVersion + "\n" + domainDefines[shader.getType()] + "\n" + versionDefines[version];
+
+        bool result = compileShader(shaderDomain, shaderSource, shaderDefines, shaderObject.glshader, shaderObject.glprogram);
+        if (!result) {
+            return nullptr;
         }
-        */
-
-        GLint infoLength = 0;
-        glGetShaderiv(glshader, GL_INFO_LOG_LENGTH, &infoLength);
-
-        char* temp = new char[infoLength] ;
-        glGetShaderInfoLog(glshader, infoLength, NULL, temp);
-
-        
-        /*
-        filestream.open("debugshader.glsl.info.txt");
-        if (filestream.is_open()) {
-            filestream << std::string(temp);
-            filestream.close();
-        }
-        */
-
-        qCWarning(gpulogging) << "GLShader::compileShader - failed to compile the gl shader object:";
-        qCWarning(gpulogging) << srcstr;
-        qCWarning(gpulogging) << "GLShader::compileShader - errors:";
-        qCWarning(gpulogging) << temp;
-        delete[] temp;
-
-        glDeleteShader(glshader);
-        return nullptr;
     }
 
-    GLuint glprogram = 0;
-#ifdef SEPARATE_PROGRAM
-    // so far so good, program is almost done, need to link:
-    GLuint glprogram = glCreateProgram();
-    if (!glprogram) {
-        qCDebug(gpulogging) << "GLShader::compileShader - failed to create the gl shader & gl program object";
-        return nullptr;
-    }
-
-    glProgramParameteri(glprogram, GL_PROGRAM_SEPARABLE, GL_TRUE);
-    glAttachShader(glprogram, glshader);
-    glLinkProgram(glprogram);
-
-    GLint linked = 0;
-    glGetProgramiv(glprogram, GL_LINK_STATUS, &linked);
-
-    if (!linked) {
-        /*
-        // save the source code to a temp file so we can debug easily
-        std::ofstream filestream;
-        filestream.open("debugshader.glsl");
-        if (filestream.is_open()) {
-            filestream << shaderSource->source;
-            filestream.close();
-        }
-        */
-
-        GLint infoLength = 0;
-        glGetProgramiv(glprogram, GL_INFO_LOG_LENGTH, &infoLength);
-
-        char* temp = new char[infoLength] ;
-        glGetProgramInfoLog(glprogram, infoLength, NULL, temp);
-
-        qCDebug(gpulogging) << "GLShader::compileShader -  failed to LINK the gl program object :";
-        qCDebug(gpulogging) << temp;
-
-        /*
-        filestream.open("debugshader.glsl.info.txt");
-        if (filestream.is_open()) {
-            filestream << String(temp);
-            filestream.close();
-        }
-        */
-        delete[] temp;
-
-        glDeleteShader(glshader);
-        glDeleteProgram(glprogram);
-        return nullptr;
-    }
-#endif
-
     // So far so good, the shader is created successfully
     GLBackend::GLShader* object = new GLBackend::GLShader();
-    object->_shader = glshader;
-    object->_program = glprogram;
-
-    makeBindings(object);
+    object->_shaderObjects = shaderObjects;
 
     return object;
 }
 
-GLBackend::GLShader* compileProgram(const Shader& program) {
-    if(!program.isProgram()) {
+GLBackend::GLShader* compileBackendProgram(const Shader& program) {
+    if (!program.isProgram()) {
         return nullptr;
     }
 
-    // Let's go through every shaders and make sure they are ready to go
-    std::vector< GLuint > shaderObjects;
-    for (auto subShader : program.getShaders()) {
-        GLuint so = GLBackend::getShaderID(subShader);
-        if (!so) {
-            qCDebug(gpulogging) << "GLShader::compileProgram - One of the shaders of the program is not compiled?";
+    GLBackend::GLShader::ShaderObjects programObjects;
+
+    for (int version = 0; version < GLBackend::GLShader::NumVersions; version++) {
+        auto& programObject = programObjects[version];
+
+        // Let's go through every shaders and make sure they are ready to go
+        std::vector< GLuint > shaderGLObjects;
+        for (auto subShader : program.getShaders()) {
+            auto object = GLBackend::syncGPUObject(*subShader);
+            if (object) {
+                shaderGLObjects.push_back(object->_shaderObjects[version].glshader);
+            } else {
+                qCDebug(gpulogging) << "GLShader::compileBackendProgram - One of the shaders of the program is not compiled?";
+                return nullptr;
+            }
+        }
+
+        GLuint glprogram = compileProgram(shaderGLObjects);
+        if (glprogram == 0) {
             return nullptr;
         }
-        shaderObjects.push_back(so);
+
+        programObject.glprogram = glprogram;
+
+        makeProgramBindings(programObject);
     }
 
-    // so far so good, program is almost done, need to link:
-    GLuint glprogram = glCreateProgram();
-    if (!glprogram) {
-        qCDebug(gpulogging) << "GLShader::compileProgram - failed to create the gl program object";
-        return nullptr;
-    }
 
-    // glProgramParameteri(glprogram, GL_PROGRAM_, GL_TRUE);
-    // Create the program from the sub shaders
-    for (auto so : shaderObjects) {
-        glAttachShader(glprogram, so);
-    }
-
-    // Link!
-    glLinkProgram(glprogram);
-
-    GLint linked = 0;
-    glGetProgramiv(glprogram, GL_LINK_STATUS, &linked);
-
-    if (!linked) {
-        /*
-        // save the source code to a temp file so we can debug easily
-        std::ofstream filestream;
-        filestream.open("debugshader.glsl");
-        if (filestream.is_open()) {
-            filestream << shaderSource->source;
-            filestream.close();
-        }
-        */
-
-        GLint infoLength = 0;
-        glGetProgramiv(glprogram, GL_INFO_LOG_LENGTH, &infoLength);
-
-        char* temp = new char[infoLength] ;
-        glGetProgramInfoLog(glprogram, infoLength, NULL, temp);
-
-        qCDebug(gpulogging) << "GLShader::compileProgram -  failed to LINK the gl program object :";
-        qCDebug(gpulogging) << temp;
-
-        /*
-        filestream.open("debugshader.glsl.info.txt");
-        if (filestream.is_open()) {
-            filestream << std::string(temp);
-            filestream.close();
-        }
-        */
-        delete[] temp;
-
-        glDeleteProgram(glprogram);
-        return nullptr;
-    }
-
-    // So far so good, the program is created successfully
+    // So far so good, the program versions have all been created successfully
     GLBackend::GLShader* object = new GLBackend::GLShader();
-    object->_shader = 0;
-    object->_program = glprogram;
-
-    makeBindings(object);
+    object->_shaderObjects = programObjects;
 
     return object;
 }
@@ -329,14 +392,14 @@ GLBackend::GLShader* GLBackend::syncGPUObject(const Shader& shader) {
     }
     // need to have a gpu object?
     if (shader.isProgram()) {
-         GLShader* tempObject = compileProgram(shader);
-         if (tempObject) {
+        GLShader* tempObject = compileBackendProgram(shader);
+        if (tempObject) {
             object = tempObject;
             Backend::setGPUObject(shader, object);
         }
     } else if (shader.isDomain()) {
-         GLShader* tempObject = compileShader(shader);
-         if (tempObject) {
+        GLShader* tempObject = compileBackendShader(shader);
+        if (tempObject) {
             object = tempObject;
             Backend::setGPUObject(shader, object);
         }
@@ -345,23 +408,6 @@ GLBackend::GLShader* GLBackend::syncGPUObject(const Shader& shader) {
     return object;
 }
 
-
-GLuint GLBackend::getShaderID(const ShaderPointer& shader) {
-    if (!shader) {
-        return 0;
-    }
-    GLShader* object = GLBackend::syncGPUObject(*shader);
-    if (object) {
-        if (shader->isProgram()) {
-            return object->_program;
-        } else {
-            return object->_shader;
-        }
-    } else {
-        return 0;
-    }
-}
-
 class ElementResource {
 public:
     gpu::Element _element;
@@ -714,27 +760,38 @@ bool GLBackend::makeProgram(Shader& shader, const Shader::BindingSet& slotBindin
         return false;
     }
 
-    if (object->_program) {
-        Shader::SlotSet buffers;
-        makeUniformBlockSlots(object->_program, slotBindings, buffers);
+    // Apply bindings to all program versions and generate list of slots from default version
+    for (int version = 0; version < GLBackend::GLShader::NumVersions; version++) {
+        auto& shaderObject = object->_shaderObjects[version];
+        if (shaderObject.glprogram) {
+            Shader::SlotSet buffers;
+            makeUniformBlockSlots(shaderObject.glprogram, slotBindings, buffers);
 
-        Shader::SlotSet uniforms;
-        Shader::SlotSet textures;
-        Shader::SlotSet samplers;
-        makeUniformSlots(object->_program, slotBindings, uniforms, textures, samplers);
-        
-        Shader::SlotSet inputs;
-        makeInputSlots(object->_program, slotBindings, inputs);
+            Shader::SlotSet uniforms;
+            Shader::SlotSet textures;
+            Shader::SlotSet samplers;
+            makeUniformSlots(shaderObject.glprogram, slotBindings, uniforms, textures, samplers);
 
-        Shader::SlotSet outputs;
-        makeOutputSlots(object->_program, slotBindings, outputs);
+            Shader::SlotSet inputs;
+            makeInputSlots(shaderObject.glprogram, slotBindings, inputs);
 
-        shader.defineSlots(uniforms, buffers, textures, samplers, inputs, outputs);
-
-    } else if (object->_shader) {
+            Shader::SlotSet outputs;
+            makeOutputSlots(shaderObject.glprogram, slotBindings, outputs);
 
+            // Define the public slots only from the default version
+            if (version == 0) {
+                shader.defineSlots(uniforms, buffers, textures, samplers, inputs, outputs);
+            } else {
+                GLShader::UniformMapping mapping;
+                for (auto srcUniform : shader.getUniforms()) {
+                    mapping[srcUniform._location] = uniforms.findLocation(srcUniform._name);
+                }
+                object->_uniformMappings.push_back(mapping);
+            }
+        }
     }
 
+
     return true;
 }
 

libraries/gpu/src/gpu/Resource.cpp

@@ -325,3 +325,26 @@ Buffer::Size Buffer::append(Size size, const Byte* data) {
     return newSize;
 }
 
+const Element BufferView::DEFAULT_ELEMENT = Element( gpu::SCALAR, gpu::UINT8, gpu::RAW );
+
+BufferView::BufferView() :
+BufferView(DEFAULT_ELEMENT) {}
+
+BufferView::BufferView(const Element& element) :
+    BufferView(BufferPointer(), element) {}
+
+BufferView::BufferView(Buffer* newBuffer, const Element& element) :
+    BufferView(BufferPointer(newBuffer), element) {}
+
+BufferView::BufferView(const BufferPointer& buffer, const Element& element) :
+    BufferView(buffer, DEFAULT_OFFSET, buffer ? buffer->getSize() : 0, element.getSize(), element) {}
+
+BufferView::BufferView(const BufferPointer& buffer, Size offset, Size size, const Element& element) :
+    BufferView(buffer, offset, size, element.getSize(), element) {}
+
+BufferView::BufferView(const BufferPointer& buffer, Size offset, Size size, uint16 stride, const Element& element) :
+    _buffer(buffer),
+    _offset(offset),
+    _size(size),
+    _element(element),
+    _stride(stride) {}

libraries/gpu/src/gpu/Resource.h

@@ -174,73 +174,30 @@ typedef std::vector< BufferPointer > Buffers;
 
 
 class BufferView {
-protected: 
-    void initFromBuffer(const BufferPointer& buffer) {
-        _buffer = (buffer);
-        if (_buffer) {
-            _size = (buffer->getSize());
-        }
-    }
+protected:
+    static const Resource::Size DEFAULT_OFFSET{ 0 };
+    static const Element DEFAULT_ELEMENT;
+
 public:
-    typedef Resource::Size Size;
-    typedef int Index;
+    using Size = Resource::Size;
+    using Index = int;
 
     BufferPointer _buffer;
-    Size _offset{ 0 };
-    Size _size{ 0 };
+    Size _offset;
+    Size _size;
     Element _element;
-    uint16 _stride{ 1 };
+    uint16 _stride;
 
-    BufferView() :
-        _buffer(NULL),
-        _offset(0),
-        _size(0),
-        _element(gpu::SCALAR, gpu::UINT8, gpu::RAW),
-        _stride(1)
-    {};
-
-    BufferView(const Element& element) :
-        _buffer(NULL),
-        _offset(0),
-        _size(0),
-        _element(element),
-        _stride(uint16(element.getSize()))
-    {};
-
-    // create the BufferView and own the Buffer
-    BufferView(Buffer* newBuffer, const Element& element = Element(gpu::SCALAR, gpu::UINT8, gpu::RAW)) :
-        _offset(0),
-        _element(element),
-        _stride(uint16(element.getSize()))
-    {
-        initFromBuffer(BufferPointer(newBuffer));
-    };
-    BufferView(const BufferPointer& buffer, const Element& element = Element(gpu::SCALAR, gpu::UINT8, gpu::RAW)) :
-        _offset(0),
-        _element(element),
-        _stride(uint16(element.getSize()))
-    {
-        initFromBuffer(buffer);
-    };
-    BufferView(const BufferPointer& buffer, Size offset, Size size, const Element& element = Element(gpu::SCALAR, gpu::UINT8, gpu::RAW)) :
-        _buffer(buffer),
-        _offset(offset),
-        _size(size),
-        _element(element),
-        _stride(uint16(element.getSize()))
-    {};
-    BufferView(const BufferPointer& buffer, Size offset, Size size, uint16 stride, const Element& element = Element(gpu::SCALAR, gpu::UINT8, gpu::RAW)) :
-        _buffer(buffer),
-        _offset(offset),
-        _size(size),
-        _element(element),
-        _stride(stride)
-    {};
-
-    ~BufferView() {}
     BufferView(const BufferView& view) = default;
     BufferView& operator=(const BufferView& view) = default;
 
+    BufferView();
+    BufferView(const Element& element);
+    BufferView(Buffer* newBuffer, const Element& element = DEFAULT_ELEMENT);
+    BufferView(const BufferPointer& buffer, const Element& element = DEFAULT_ELEMENT);
+    BufferView(const BufferPointer& buffer, Size offset, Size size, const Element& element = DEFAULT_ELEMENT);
+    BufferView(const BufferPointer& buffer, Size offset, Size size, uint16 stride, const Element& element = DEFAULT_ELEMENT);
+
     Size getNumElements() const { return _size / _element.getSize(); }
 
     //Template iterator with random access on the buffer sysmem

libraries/networking/src/ResourceCache.cpp

@@ -155,9 +155,12 @@ void ResourceCache::clearATPAssets() {
     }
     {
         QWriteLocker locker(&_resourcesToBeGottenLock);
-        for (auto& url : _resourcesToBeGotten) {
-            if (url.scheme() == URL_SCHEME_ATP) {
-                _resourcesToBeGotten.removeAll(url);
+        auto it = _resourcesToBeGotten.begin();
+        while (it != _resourcesToBeGotten.end()) {
+            if (it->scheme() == URL_SCHEME_ATP) {
+                it = _resourcesToBeGotten.erase(it);
+            } else {
+                ++it;
             }
         }
     }

libraries/networking/src/udt/SendQueue.cpp

@@ -329,10 +329,21 @@ void SendQueue::run() {
         auto nextPacketDelta = (newPacketCount == 2 ? 2 : 1) * _packetSendPeriod;
         nextPacketTimestamp += std::chrono::microseconds(nextPacketDelta);
 
-        // sleep as long as we need until next packet send, if we can
+        // sleep as long as we need for next packet send, if we can
         auto now = p_high_resolution_clock::now();
+
         auto timeToSleep = duration_cast<microseconds>(nextPacketTimestamp - now);
 
+        // we use nextPacketTimestamp so that we don't fall behind, not to force long sleeps
+        // we'll never allow nextPacketTimestamp to force us to sleep for more than nextPacketDelta
+        // so cap it to that value
+        if (timeToSleep > std::chrono::microseconds(nextPacketDelta)) {
+            // reset the nextPacketTimestamp so that it is correct next time we come around
+            nextPacketTimestamp = now + std::chrono::microseconds(nextPacketDelta);
+
+            timeToSleep = std::chrono::microseconds(nextPacketDelta);
+        }
+
         // we're seeing SendQueues sleep for a long period of time here,
         // which can lock the NodeList if it's attempting to clear connections
         // for now we guard this by capping the time this thread and sleep for

libraries/physics/src/CharacterController.cpp

@@ -72,6 +72,17 @@ CharacterController::CharacterController() {
     _pendingFlags = PENDING_FLAG_UPDATE_SHAPE;
 }
 
+CharacterController::~CharacterController() {
+    if (_rigidBody) {
+        btCollisionShape* shape = _rigidBody->getCollisionShape();
+        if (shape) {
+            delete shape;
+        }
+        delete _rigidBody;
+        _rigidBody = nullptr;
+    }
+}
+
 bool CharacterController::needsRemoval() const {
     return ((_pendingFlags & PENDING_FLAG_REMOVE_FROM_SIMULATION) == PENDING_FLAG_REMOVE_FROM_SIMULATION);
 }

libraries/physics/src/CharacterController.h

@@ -36,7 +36,7 @@ class btDynamicsWorld;
 class CharacterController : public btCharacterControllerInterface {
 public:
     CharacterController();
-    virtual ~CharacterController() {}
+    virtual ~CharacterController();
 
     bool needsRemoval() const;
     bool needsAddition() const;

libraries/plugins/src/plugins/DisplayPlugin.h

@@ -105,6 +105,12 @@ public:
         return aspect(getRecommendedRenderSize());
     }
 
+    // The recommended bounds for primary overlay placement
+    virtual QRect getRecommendedOverlayRect() const {
+        auto recommendedSize = getRecommendedUiSize();
+        return QRect(0, 0, recommendedSize.x, recommendedSize.y);
+    }
+
     // Stereo specific methods
     virtual glm::mat4 getEyeProjection(Eye eye, const glm::mat4& baseProjection) const {
         return baseProjection;

libraries/render-utils/src/DeferredBufferWrite.slh

@@ -46,6 +46,7 @@ const float DEFAULT_METALLIC = 0;
 const vec3 DEFAULT_SPECULAR = vec3(0.1);
 const vec3 DEFAULT_EMISSIVE = vec3(0.0);
 const float DEFAULT_OCCLUSION = 1.0;
+const vec3 DEFAULT_FRESNEL = DEFAULT_EMISSIVE;
 
 
 void packDeferredFragment(vec3 normal, float alpha, vec3 albedo, float roughness, float metallic, vec3 emissive, float occlusion) {

libraries/render-utils/src/DeferredGlobalLight.slh

@@ -90,6 +90,7 @@ vec3 evalSkyboxGlobalColor(mat4 invViewMat, float shadowAttenuation, float obscu
 
     // Specular highlight from ambient
     vec3 direction = -reflect(fragEyeDir, fragNormal);
+
     float levels = getLightAmbientMapNumMips(light);
     float lod = min(floor((roughness) * levels), levels);
     vec4 skyboxLight = evalSkyboxLight(direction, lod);

libraries/render-utils/src/RenderDeferredTask.cpp

@@ -96,7 +96,7 @@ RenderDeferredTask::RenderDeferredTask(CullFunctor cullFunctor) {
     addJob<PrepareDeferred>("PrepareDeferred");
 
     // Render opaque objects in DeferredBuffer
-    addJob<DrawDeferred>("DrawOpaqueDeferred", opaques, shapePlumber);
+    addJob<DrawStateSortDeferred>("DrawOpaqueDeferred", opaques, shapePlumber);
 
     // Once opaque is all rendered create stencil background
     addJob<DrawStencilDeferred>("DrawOpaqueStencil");
@@ -185,9 +185,6 @@ void DrawDeferred::run(const SceneContextPointer& sceneContext, const RenderCont
         batch.setViewportTransform(args->_viewport);
         batch.setStateScissorRect(args->_viewport);
 
-        config->setNumDrawn((int)inItems.size());
-        emit config->numDrawnChanged();
-
         glm::mat4 projMat;
         Transform viewMat;
         args->_viewFrustum->evalProjectionMatrix(projMat);
@@ -199,6 +196,40 @@ void DrawDeferred::run(const SceneContextPointer& sceneContext, const RenderCont
         renderShapes(sceneContext, renderContext, _shapePlumber, inItems, _maxDrawn);
         args->_batch = nullptr;
     });
+
+    config->setNumDrawn((int)inItems.size());
+}
+
+void DrawStateSortDeferred::run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext, const ItemBounds& inItems) {
+    assert(renderContext->args);
+    assert(renderContext->args->_viewFrustum);
+
+    auto config = std::static_pointer_cast<Config>(renderContext->jobConfig);
+
+    RenderArgs* args = renderContext->args;
+
+    gpu::doInBatch(args->_context, [&](gpu::Batch& batch) {
+        args->_batch = &batch;
+        batch.setViewportTransform(args->_viewport);
+        batch.setStateScissorRect(args->_viewport);
+
+        glm::mat4 projMat;
+        Transform viewMat;
+        args->_viewFrustum->evalProjectionMatrix(projMat);
+        args->_viewFrustum->evalViewTransform(viewMat);
+
+        batch.setProjectionTransform(projMat);
+        batch.setViewTransform(viewMat);
+
+        if (_stateSort) {
+            renderStateSortShapes(sceneContext, renderContext, _shapePlumber, inItems, _maxDrawn);
+        } else {
+            renderShapes(sceneContext, renderContext, _shapePlumber, inItems, _maxDrawn);
+        }
+        args->_batch = nullptr;
+    });
+
+    config->setNumDrawn((int)inItems.size());
 }
 
 DrawOverlay3D::DrawOverlay3D(bool opaque) :

libraries/render-utils/src/RenderDeferredTask.h

@@ -22,6 +22,7 @@ public:
     using JobModel = render::Job::Model<SetupDeferred>;
 };
 
+
 class PrepareDeferred {
 public:
     void run(const render::SceneContextPointer& sceneContext, const render::RenderContextPointer& renderContext);
@@ -29,32 +30,31 @@ public:
     using JobModel = render::Job::Model<PrepareDeferred>;
 };
 
-
 class RenderDeferred {
 public:
     using JobModel = render::Job::Model<RenderDeferred>;
 
     void run(const render::SceneContextPointer& sceneContext, const render::RenderContextPointer& renderContext);
-
 };
 
 class DrawConfig : public render::Job::Config {
     Q_OBJECT
-    Q_PROPERTY(int numDrawn READ getNumDrawn NOTIFY numDrawnChanged)
+    Q_PROPERTY(int numDrawn READ getNumDrawn NOTIFY newStats)
+
     Q_PROPERTY(int maxDrawn MEMBER maxDrawn NOTIFY dirty)
 public:
 
-    int getNumDrawn() { return numDrawn; }
-    void setNumDrawn(int num) { numDrawn = num; emit numDrawnChanged(); }
+    int getNumDrawn() { return _numDrawn; }
+    void setNumDrawn(int numDrawn) { _numDrawn = numDrawn;  emit newStats(); }
 
     int maxDrawn{ -1 };
 
 signals:
-    void numDrawnChanged();
+    void newStats();
     void dirty();
 
 protected:
-    int numDrawn{ 0 };
+    int _numDrawn{ 0 };
 };
 
 class DrawDeferred {
@@ -72,6 +72,44 @@ protected:
     int _maxDrawn; // initialized by Config
 };
 
+class DrawStateSortConfig : public render::Job::Config {
+    Q_OBJECT
+        Q_PROPERTY(int numDrawn READ getNumDrawn NOTIFY numDrawnChanged)
+        Q_PROPERTY(int maxDrawn MEMBER maxDrawn NOTIFY dirty)
+        Q_PROPERTY(bool stateSort MEMBER stateSort NOTIFY dirty)
+public:
+
+    int getNumDrawn() { return numDrawn; }
+    void setNumDrawn(int num) { numDrawn = num; emit numDrawnChanged(); }
+
+    int maxDrawn{ -1 };
+    bool stateSort{ true };
+
+signals:
+    void numDrawnChanged();
+    void dirty();
+
+protected:
+    int numDrawn{ 0 };
+};
+
+class DrawStateSortDeferred {
+public:
+    using Config = DrawStateSortConfig;
+    using JobModel = render::Job::ModelI<DrawStateSortDeferred, render::ItemBounds, Config>;
+
+    DrawStateSortDeferred(render::ShapePlumberPointer shapePlumber) : _shapePlumber{ shapePlumber } {}
+
+    void configure(const Config& config) { _maxDrawn = config.maxDrawn; _stateSort = config.stateSort; }
+    void run(const render::SceneContextPointer& sceneContext, const render::RenderContextPointer& renderContext, const render::ItemBounds& inItems);
+
+protected:
+    render::ShapePlumberPointer _shapePlumber;
+    int _maxDrawn; // initialized by Config
+    bool _stateSort;
+};
+
+
 class DrawStencilDeferred {
 public:
     using JobModel = render::Job::Model<DrawStencilDeferred>;

libraries/render-utils/src/ToneMappingEffect.cpp

@@ -27,7 +27,7 @@ ToneMappingEffect::ToneMappingEffect() {
 }
 
 void ToneMappingEffect::init() {
-    const char BlitTextureGamma_frag[] = R"SCRIBE(#version 410 core
+    const char BlitTextureGamma_frag[] = R"SCRIBE(
         //  Generated on Sat Oct 24 09:34:37 2015
         //
         //  Draw texture 0 fetched at texcoord.xy

libraries/render-utils/src/sdf_text3D.slf

@@ -41,20 +41,15 @@ void main() {
     float w = clamp( s, 0.0, 0.5);
     float a = smoothstep(0.5 - w, 0.5 + w, sdf);
     
-    // gamma correction for linear attenuation
-    a = pow(a, 1.0 / gamma);
-    
     // discard if unvisible
     if (a < 0.01) {
         discard;
     }
     
-    packDeferredFragmentLightmap(
-         normalize(_normal),
-         1.0,
-         vec3(1.0),
-         DEFAULT_ROUGHNESS,
-         DEFAULT_METALLIC,
-         DEFAULT_SPECULAR,
-         Color.rgb);
+    packDeferredFragmentTranslucent(
+        normalize(_normal),
+        a,
+        Color.rgb,
+        DEFAULT_FRESNEL,
+        DEFAULT_ROUGHNESS);
 }

libraries/render/src/render/DrawTask.cpp

@@ -65,6 +65,57 @@ void render::renderShapes(const SceneContextPointer& sceneContext, const RenderC
     }
 }
 
+void render::renderStateSortShapes(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext,
+    const ShapePlumberPointer& shapeContext, const ItemBounds& inItems, int maxDrawnItems) {
+    auto& scene = sceneContext->_scene;
+    RenderArgs* args = renderContext->args;
+
+    int numItemsToDraw = (int)inItems.size();
+    if (maxDrawnItems != -1) {
+        numItemsToDraw = glm::min(numItemsToDraw, maxDrawnItems);
+    }
+
+    using SortedPipelines = std::vector<render::ShapeKey>;
+    using SortedShapes = std::unordered_map<render::ShapeKey, std::vector<Item>, render::ShapeKey::Hash, render::ShapeKey::KeyEqual>;
+    SortedPipelines sortedPipelines;
+    SortedShapes sortedShapes;
+    std::vector<Item> ownPipelineBucket;
+
+
+    for (auto i = 0; i < numItemsToDraw; ++i) {
+        auto item = scene->getItem(inItems[i].id);
+
+        {
+            assert(item.getKey().isShape());
+            const auto& key = item.getShapeKey();
+            if (key.isValid() && !key.hasOwnPipeline()) {
+                auto& bucket = sortedShapes[key];
+                if (bucket.empty()) {
+                    sortedPipelines.push_back(key);
+                }
+                bucket.push_back(item);
+            } else if (key.hasOwnPipeline()) {
+                ownPipelineBucket.push_back(item);
+            } else {
+                qDebug() << "Item could not be rendered: invalid key ?" << key;
+            }
+        }
+    }
+
+    // Then render
+    for (auto& pipelineKey : sortedPipelines) {
+        auto& bucket = sortedShapes[pipelineKey];
+        args->_pipeline = shapeContext->pickPipeline(args, pipelineKey);
+        for (auto& item : bucket) {
+            item.render(args);
+        }
+    }
+    args->_pipeline = nullptr;
+    for (auto& item : ownPipelineBucket) {
+        item.render(args);
+    }
+}
+
 void DrawLight::run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext, const ItemBounds& inLights) {
     assert(renderContext->args);
     assert(renderContext->args->_viewFrustum);

libraries/render/src/render/DrawTask.h

@@ -18,6 +18,7 @@ namespace render {
 
 void renderItems(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext, const ItemBounds& inItems, int maxDrawnItems = -1);
 void renderShapes(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext, const ShapePlumberPointer& shapeContext, const ItemBounds& inItems, int maxDrawnItems = -1);
+void renderStateSortShapes(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext, const ShapePlumberPointer& shapeContext, const ItemBounds& inItems, int maxDrawnItems = -1);
 
 
 

libraries/render/src/render/EngineStats.cpp

@@ -49,5 +49,7 @@ void EngineStats::run(const SceneContextPointer& sceneContext, const RenderConte
     config->frameTextureRate = config->frameTextureCount * frequency;
     config->frameTextureMemoryUsage = _gpuStats._RSAmountTextureMemoryBounded - gpuStats._RSAmountTextureMemoryBounded;
 
+    config->frameSetPipelineCount = _gpuStats._PSNumSetPipelines - gpuStats._PSNumSetPipelines;
+
     config->emitDirty();
 }

libraries/render/src/render/EngineStats.h

@@ -47,6 +47,9 @@ namespace render {
         Q_PROPERTY(quint32 frameTextureRate MEMBER frameTextureRate NOTIFY dirty)
         Q_PROPERTY(quint32 frameTextureMemoryUsage MEMBER frameTextureMemoryUsage NOTIFY dirty)
 
+        Q_PROPERTY(quint32 frameSetPipelineCount MEMBER frameSetPipelineCount NOTIFY dirty)
+
+
     public:
         EngineStatsConfig() : Job::Config(true) {}
 
@@ -73,6 +76,10 @@ namespace render {
         quint32 frameTextureRate{ 0 };
         qint64 frameTextureMemoryUsage{ 0 };
 
+        quint32 frameSetPipelineCount{ 0 };
+
+
+
         void emitDirty() { emit dirty(); }
 
     signals:

libraries/render/src/render/Task.h

@@ -127,6 +127,9 @@ protected:
 // A default Config is always on; to create an enableable Config, use the ctor JobConfig(bool enabled)
 class JobConfig : public QObject {
     Q_OBJECT
+    Q_PROPERTY(quint64 cpuRunTime READ getCPUTRunTime NOTIFY newStats())
+
+    quint64 _CPURunTime{ 0 };
 public:
     using Persistent = PersistentConfig<JobConfig>;
 
@@ -151,11 +154,17 @@ public:
     Q_INVOKABLE QString toJSON() { return QJsonDocument(toJsonValue(*this).toObject()).toJson(QJsonDocument::Compact); }
     Q_INVOKABLE void load(const QVariantMap& map) { qObjectFromJsonValue(QJsonObject::fromVariantMap(map), *this); emit loaded(); }
 
+    // Running Time measurement 
+    // The new stats signal is emitted once per run time of a job when stats  (cpu runtime) are updated
+    void setCPURunTime(quint64 ustime) { _CPURunTime = ustime; emit newStats(); }
+    quint64 getCPUTRunTime() const { return _CPURunTime; }
+
 public slots:
     void load(const QJsonObject& val) { qObjectFromJsonValue(val, *this); emit loaded(); }
 
 signals:
     void loaded();
+    void newStats();
 };
 
 class TaskConfig : public JobConfig {
@@ -223,7 +232,11 @@ public:
         virtual void run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext) = 0;
 
     protected:
+        void setCPURunTime(quint64 ustime) { std::static_pointer_cast<Config>(_config)->setCPURunTime(ustime); }
+
         QConfigPointer _config;
+
+        friend class Job;
     };
     using ConceptPointer = std::shared_ptr<Concept>;
 
@@ -278,8 +291,11 @@ public:
     void run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext) {
         PerformanceTimer perfTimer(_name.c_str());
         PROFILE_RANGE(_name.c_str());
+        auto start = usecTimestampNow();
 
         _concept->run(sceneContext, renderContext);
+
+        _concept->setCPURunTime(usecTimestampNow() - start);
     }
 
     protected:

libraries/script-engine/src/ScriptEngine.cpp

@@ -18,6 +18,7 @@
 #include <QtNetwork/QNetworkReply>
 #include <QtScript/QScriptEngine>
 #include <QtScript/QScriptValue>
+#include <QtScript/QScriptValueIterator>
 #include <QtCore/QStringList>
 
 #include <AudioConstants.h>
@@ -143,7 +144,6 @@ ScriptEngine::ScriptEngine(const QString& scriptContents, const QString& fileNam
 
 ScriptEngine::~ScriptEngine() {
     qCDebug(scriptengine) << "Script Engine shutting down (destructor) for script:" << getFilename();
-
     auto scriptEngines = DependencyManager::get<ScriptEngines>();
     if (scriptEngines) {
         scriptEngines->removeScriptEngine(this);
@@ -1047,39 +1047,25 @@ void ScriptEngine::forwardHandlerCall(const EntityItemID& entityID, const QStrin
 
 // since all of these operations can be asynch we will always do the actual work in the response handler
 // for the download
-void ScriptEngine::loadEntityScript(const EntityItemID& entityID, const QString& entityScript, bool forceRedownload) {
-    if (QThread::currentThread() != thread()) {
+void ScriptEngine::loadEntityScript(QWeakPointer<ScriptEngine> theEngine, const EntityItemID& entityID, const QString& entityScript, bool forceRedownload) {
+    // NOTE: If the script content is not currently in the cache, the LAMBDA here will be called on the Main Thread
+    //       which means we're guaranteed that it's not the correct thread for the ScriptEngine. This means
+    //       when we get into entityScriptContentAvailable() we will likely invokeMethod() to get it over
+    //       to the "Entities" ScriptEngine thread.
+    DependencyManager::get<ScriptCache>()->getScriptContents(entityScript, [theEngine, entityID](const QString& scriptOrURL, const QString& contents, bool isURL, bool success) {
+        QSharedPointer<ScriptEngine> strongEngine = theEngine.toStrongRef();
+        if (strongEngine) {
 #ifdef THREAD_DEBUGGING
-        qDebug() << "*** WARNING *** ScriptEngine::loadEntityScript() called on wrong thread ["
-            << QThread::currentThread() << "], invoking on correct thread [" << thread() << "]  "
-            "entityID:" << entityID << "entityScript:" << entityScript <<"forceRedownload:" << forceRedownload;
+            qDebug() << "ScriptEngine::entityScriptContentAvailable() IN LAMBDA contentAvailable on thread ["
+                << QThread::currentThread() << "] expected thread [" << strongEngine->thread() << "]";
 #endif
-
-        QMetaObject::invokeMethod(this, "loadEntityScript",
-                                  Q_ARG(const EntityItemID&, entityID),
-                                  Q_ARG(const QString&, entityScript),
-                                  Q_ARG(bool, forceRedownload));
-        return;
-    }
-#ifdef THREAD_DEBUGGING
-    qDebug() << "ScriptEngine::loadEntityScript() called on correct thread [" << thread() << "]  "
-        "entityID:" << entityID << "entityScript:" << entityScript << "forceRedownload:" << forceRedownload;
-#endif
-
-    // If we've been called our known entityScripts should not know about us..
-    assert(!_entityScripts.contains(entityID));
-
-#ifdef THREAD_DEBUGGING
-    qDebug() << "ScriptEngine::loadEntityScript() calling scriptCache->getScriptContents() on thread ["
-        << QThread::currentThread() << "] expected thread [" << thread() << "]";
-#endif
-    DependencyManager::get<ScriptCache>()->getScriptContents(entityScript, [=](const QString& scriptOrURL, const QString& contents, bool isURL, bool success) {
-#ifdef THREAD_DEBUGGING
-        qDebug() << "ScriptEngine::entityScriptContentAvailable() IN LAMBDA contentAvailable on thread ["
-            << QThread::currentThread() << "] expected thread [" << thread() << "]";
-#endif
-
-        this->entityScriptContentAvailable(entityID, scriptOrURL, contents, isURL, success);
+            strongEngine->entityScriptContentAvailable(entityID, scriptOrURL, contents, isURL, success);
+        } else {
+            // FIXME - I'm leaving this in for testing, so that QA can confirm that sometimes the script contents
+            //         returns after the ScriptEngine has been deleted, we can remove this after QA verifies the
+            //         repro case.
+            qDebug() << "ScriptCache::getScriptContents() returned after our ScriptEngine was deleted... script:" << scriptOrURL;
+        }
     }, forceRedownload);
 }
 
@@ -1213,6 +1199,16 @@ void ScriptEngine::unloadAllEntityScripts() {
         callEntityScriptMethod(entityID, "unload");
     }
     _entityScripts.clear();
+
+#ifdef DEBUG_ENGINE_STATE
+    qDebug() << "---- CURRENT STATE OF ENGINE: --------------------------";
+    QScriptValueIterator it(globalObject());
+    while (it.hasNext()) {
+        it.next();
+        qDebug() << it.name() << ":" << it.value().toString();
+    }
+    qDebug() << "--------------------------------------------------------";
+#endif // DEBUG_ENGINE_STATE
 }
 
 void ScriptEngine::refreshFileScript(const EntityItemID& entityID) {

libraries/script-engine/src/ScriptEngine.h

@@ -124,7 +124,7 @@ public:
     Q_INVOKABLE QUrl resolvePath(const QString& path) const;
 
     // Entity Script Related methods
-    Q_INVOKABLE void loadEntityScript(const EntityItemID& entityID, const QString& entityScript, bool forceRedownload = false); // will call the preload method once loaded
+    static void loadEntityScript(QWeakPointer<ScriptEngine> theEngine, const EntityItemID& entityID, const QString& entityScript, bool forceRedownload);
     Q_INVOKABLE void unloadEntityScript(const EntityItemID& entityID); // will call unload method
     Q_INVOKABLE void unloadAllEntityScripts();
     Q_INVOKABLE void callEntityScriptMethod(const EntityItemID& entityID, const QString& methodName, const QStringList& params = QStringList());

libraries/script-engine/src/ScriptEngines.cpp

@@ -22,12 +22,7 @@
 #define __STR1__(x) __STR2__(x)
 #define __LOC__ __FILE__ "(" __STR1__(__LINE__) ") : Warning Msg: "
 
-#ifndef __APPLE__
 static const QString DESKTOP_LOCATION = QStandardPaths::writableLocation(QStandardPaths::DesktopLocation);
-#else
-// Temporary fix to Qt bug: http://stackoverflow.com/questions/16194475
-static const QString DESKTOP_LOCATION = QStandardPaths::writableLocation(QStandardPaths::DesktopLocation).append("/script.js");
-#endif
 
 ScriptsModel& getScriptsModel() {
     static ScriptsModel scriptsModel;

libraries/shared/src/Debug.h

@@ -55,8 +55,11 @@ public:
     }
     ~Counter() { log(); }
 
-    // Increase the count for key.
-    void add(const K& key);
+    // Increase the count for key (by inc).
+    void add(const K& key, size_t inc = 1);
+
+    // Decrease the count for key (by dec).
+    void sub(const K& key, size_t dec = 1);
 
     // Log current counts (called on destruction).
     void log();
@@ -123,20 +126,25 @@ private:
 };
 
 template<class K>
-void Counter<K>::add(const K& k) {
+void Counter<K>::add(const K& k, size_t inc) {
     std::lock_guard<std::mutex> lock(_mutex);
 
     auto& it = _map.find(k);
 
     if (it == _map.end()) {
         // No entry for k; add it
-        _map.insert(std::pair<K, size_t>(k, 1));
+        _map.insert(std::pair<K, size_t>(k, inc));
     } else {
         // Entry for k; update it
-        it->second++;
+        it->second += inc;
     }
 }
 
+template<class K>
+void Counter<K>::sub(const K& k, size_t dec) {
+    add(k, -dec);
+}
+
 template <class K>
 void Counter<K>::log() {
     // Avoid logging nothing

libraries/shared/src/PIDController.cpp

@@ -34,7 +34,7 @@ float PIDController::update(float measuredValue, float dt, bool resetAccumulator
     if (getIsLogging()) {  // if logging/reporting
         updateHistory(measuredValue, dt, error, accumulatedError, changeInError, p, i, d, computedValue);
     }
-    Q_ASSERT(!isnan(computedValue));
+    Q_ASSERT(!glm::isnan(computedValue));
     
     // update state for next time
     _lastError = error;
@@ -75,4 +75,4 @@ void PIDController::reportHistory() {
     qCDebug(shared) << "Limits: setpoint" << getMeasuredValueSetpoint() << "accumulate" << getAccumulatedValueLowLimit() << getAccumulatedValueHighLimit() <<
         "controlled" << getControlledValueLowLimit() << getControlledValueHighLimit() <<
         "kp/ki/kd" << getKP() << getKI() << getKD();
-}
+}

libraries/shared/src/RegisteredMetaTypes.cpp

@@ -128,7 +128,7 @@ void vec3FromScriptValue(const QScriptValue &object, glm::vec3 &vec3) {
     vec3.z = object.property("z").toVariant().toFloat();
 }
 
-QVariant vec3toVariant(const glm::vec3 &vec3) {
+QVariant vec3toVariant(const glm::vec3& vec3) {
     if (vec3.x != vec3.x || vec3.y != vec3.y || vec3.z != vec3.z) {
         // if vec3 contains a NaN don't try to convert it
         return QVariant();
@@ -140,6 +140,18 @@ QVariant vec3toVariant(const glm::vec3 &vec3) {
     return result;
 }
 
+QVariant vec4toVariant(const glm::vec4& vec4) {
+    if (isNaN(vec4.x) || isNaN(vec4.y) || isNaN(vec4.z) || isNaN(vec4.w)) {
+        // if vec4 contains a NaN don't try to convert it
+        return QVariant();
+    }
+    QVariantMap result;
+    result["x"] = vec4.x;
+    result["y"] = vec4.y;
+    result["z"] = vec4.z;
+    result["w"] = vec4.w;
+    return result;
+}
 
 QScriptValue qVectorVec3ToScriptValue(QScriptEngine* engine, const QVector<glm::vec3>& vector) {
     QScriptValue array = engine->newArray();
@@ -150,7 +162,7 @@ QScriptValue qVectorVec3ToScriptValue(QScriptEngine* engine, const QVector<glm::
 }
 
 
-glm::vec3 vec3FromVariant(const QVariant &object, bool& valid) {
+glm::vec3 vec3FromVariant(const QVariant& object, bool& valid) {
     glm::vec3 v;
     valid = false;
     if (!object.isValid() || object.isNull()) {
@@ -189,12 +201,49 @@ glm::vec3 vec3FromVariant(const QVariant &object, bool& valid) {
     return v;
 }
 
-glm::vec3 vec3FromVariant(const QVariant &object) {
+glm::vec3 vec3FromVariant(const QVariant& object) {
     bool valid = false;
     return vec3FromVariant(object, valid);
 }
 
-QScriptValue quatToScriptValue(QScriptEngine* engine, const glm::quat &quat) {
+glm::vec4 vec4FromVariant(const QVariant& object, bool& valid) {
+    glm::vec4 v;
+    valid = false;
+    if (!object.isValid() || object.isNull()) {
+        return v;
+    } else if (object.canConvert<float>()) {
+        v = glm::vec4(object.toFloat());
+        valid = true;
+    } else if (object.canConvert<QVector4D>()) {
+        auto qvec4 = qvariant_cast<QVector4D>(object);
+        v.x = qvec4.x();
+        v.y = qvec4.y();
+        v.z = qvec4.z();
+        v.w = qvec4.w();
+        valid = true;
+    } else {
+        auto map = object.toMap();
+        auto x = map["x"];
+        auto y = map["y"];
+        auto z = map["z"];
+        auto w = map["w"];
+        if (x.canConvert<float>() && y.canConvert<float>() && z.canConvert<float>() && w.canConvert<float>()) {
+            v.x = x.toFloat();
+            v.y = y.toFloat();
+            v.z = z.toFloat();
+            v.w = w.toFloat();
+            valid = true;
+        }
+    }
+    return v;
+}
+
+glm::vec4 vec4FromVariant(const QVariant& object) {
+    bool valid = false;
+    return vec4FromVariant(object, valid);
+}
+
+QScriptValue quatToScriptValue(QScriptEngine* engine, const glm::quat& quat) {
     QScriptValue obj = engine->newObject();
     if (quat.x != quat.x || quat.y != quat.y || quat.z != quat.z || quat.w != quat.w) {
         // if quat contains a NaN don't try to convert it
@@ -207,7 +256,7 @@ QScriptValue quatToScriptValue(QScriptEngine* engine, const glm::quat &quat) {
     return obj;
 }
 
-void quatFromScriptValue(const QScriptValue &object, glm::quat &quat) {
+void quatFromScriptValue(const QScriptValue& object, glm::quat &quat) {
     quat.x = object.property("x").toVariant().toFloat();
     quat.y = object.property("y").toVariant().toFloat();
     quat.z = object.property("z").toVariant().toFloat();
@@ -245,12 +294,12 @@ glm::quat quatFromVariant(const QVariant &object, bool& isValid) {
     return q;
 }
 
-glm::quat quatFromVariant(const QVariant &object) {
+glm::quat quatFromVariant(const QVariant& object) {
     bool valid = false;
     return quatFromVariant(object, valid);
 }
 
-QVariant quatToVariant(const glm::quat &quat) {
+QVariant quatToVariant(const glm::quat& quat) {
     if (quat.x != quat.x || quat.y != quat.y || quat.z != quat.z) {
         // if vec3 contains a NaN don't try to convert it
         return QVariant();

libraries/shared/src/RegisteredMetaTypes.h

@@ -43,12 +43,15 @@ void mat4FromScriptValue(const QScriptValue& object, glm::mat4& mat4);
 // Vec4
 QScriptValue vec4toScriptValue(QScriptEngine* engine, const glm::vec4& vec4);
 void vec4FromScriptValue(const QScriptValue& object, glm::vec4& vec4);
+QVariant vec4toVariant(const glm::vec4& vec4);
+glm::vec4 vec4FromVariant(const QVariant &object, bool& valid);
+glm::vec4 vec4FromVariant(const QVariant &object);
 
 // Vec3
 QScriptValue vec3toScriptValue(QScriptEngine* engine, const glm::vec3 &vec3);
 void vec3FromScriptValue(const QScriptValue &object, glm::vec3 &vec3);
 
-QVariant vec3toVariant(const glm::vec3 &vec3);
+QVariant vec3toVariant(const glm::vec3& vec3);
 glm::vec3 vec3FromVariant(const QVariant &object, bool& valid);
 glm::vec3 vec3FromVariant(const QVariant &object);
 
@@ -71,9 +74,10 @@ glm::quat quatFromVariant(const QVariant &object);
 // Rect
 QScriptValue qRectToScriptValue(QScriptEngine* engine, const QRect& rect);
 void qRectFromScriptValue(const QScriptValue& object, QRect& rect);
-
-QVariant qRectToVariant(const QRect& rect);
 QRect qRectFromVariant(const QVariant& object, bool& isValid);
+QRect qRectFromVariant(const QVariant& object);
+QVariant qRectToVariant(const QRect& rect);
+
 
 // xColor
 QScriptValue xColorToScriptValue(QScriptEngine* engine, const xColor& color);

libraries/shared/src/SettingHandle.cpp

@@ -18,7 +18,7 @@ void Settings::getFloatValueIfValid(const QString& name, float& floatValue) {
     const QVariant badDefaultValue = NAN;
     bool ok = true;
     float tempFloat = value(name, badDefaultValue).toFloat(&ok);
-    if (ok && !isnan(tempFloat)) {
+    if (ok && !glm::isnan(tempFloat)) {
         floatValue = tempFloat;
     }
 }
@@ -47,7 +47,7 @@ void Settings::getVec3ValueIfValid(const QString& name, glm::vec3& vecValue) {
         float x = value(QString("x"), badDefaultValue).toFloat(&ok);
         float y = value(QString("y"), badDefaultValue).toFloat(&ok);
         float z = value(QString("z"), badDefaultValue).toFloat(&ok);
-        if (ok && (!isnan(x) && !isnan(y) && !isnan(z))) {
+        if (ok && (!glm::isnan(x) && !glm::isnan(y) && !glm::isnan(z))) {
             vecValue = glm::vec3(x, y, z);
         }
     }
@@ -74,7 +74,7 @@ void Settings::getQuatValueIfValid(const QString& name, glm::quat& quatValue) {
         float y = value(QString("y"), badDefaultValue).toFloat(&ok);
         float z = value(QString("z"), badDefaultValue).toFloat(&ok);
         float w = value(QString("w"), badDefaultValue).toFloat(&ok);
-        if (ok && (!isnan(x) && !isnan(y) && !isnan(z) && !isnan(w))) {
+        if (ok && (!glm::isnan(x) && !glm::isnan(y) && !glm::isnan(z) && !glm::isnan(w))) {
             quatValue = glm::quat(w, x, y, z);
         }
     }