Refined the capping of the LOD Target Rate to be the lower REfreshrate when FOcus-inactive, this prevent the panic attacks of the LOD system on low end hardware

interface/resources/qml/+android_interface/Stats.qml

@@ -269,6 +269,9 @@ Item {
                     StatText {
                         text: "GPU: " + root.gpuFrameTime.toFixed(1) + " ms"
                     }
+                    StatText {
+                        text: "LOD Target: " + root.lodTargetFramerate + " Hz Angle: " + root.lodAngle + " deg"
+                    }
                     StatText {
                         text: "Drawcalls: " + root.drawcalls
                     }

interface/resources/qml/Stats.qml

@@ -259,6 +259,35 @@ Item {
                         visible: root.expanded;
                         text: "Entity Servers In: " + root.entityPacketsInKbps + " kbps";
                     }
+                    StatText {
+                        visible: !root.expanded
+                        text: "Octree Elements Server: " + root.serverElements +
+                            " Local: " + root.localElements;
+                    }
+                    StatText {
+                        visible: root.expanded
+                        text: "Octree Sending Mode: " + root.sendingMode;
+                    }
+                    StatText {
+                        visible: root.expanded
+                        text: "Octree Packets to Process: " + root.packetStats;
+                    }
+                    StatText {
+                        visible: root.expanded
+                        text: "Octree Elements - ";
+                    }
+                    StatText {
+                        visible: root.expanded
+                        text: "\tServer: " + root.serverElements +
+                            " Internal: " + root.serverInternal +
+                            " Leaves: " + root.serverLeaves;
+                    }
+                    StatText {
+                        visible: root.expanded
+                        text: "\tLocal: " + root.localElements +
+                            " Internal: " + root.localInternal +
+                            " Leaves: " + root.localLeaves;
+                    }
                     StatText {
                         visible: root.expanded;
                         text: "Downloads: " + root.downloads + "/" + root.downloadLimit +
@@ -316,6 +345,9 @@ Item {
                     StatText {
                         text: "GPU frame size: " + root.gpuFrameSize.x + " x " + root.gpuFrameSize.y
                     }
+                    StatText {
+                        text: "LOD Target: " + root.lodTargetFramerate + " Hz Angle: " + root.lodAngle + " deg"
+                    }
                     StatText {
                         text: "Drawcalls: " + root.drawcalls
                     }
@@ -401,35 +433,6 @@ Item {
                         text: " out of view: " + root.shadowOutOfView +
                             " too small: " + root.shadowTooSmall;
                     }
-                    StatText {
-                        visible: !root.expanded
-                        text: "Octree Elements Server: " + root.serverElements +
-                            " Local: " + root.localElements;
-                    }
-                    StatText {
-                        visible: root.expanded
-                        text: "Octree Sending Mode: " + root.sendingMode;
-                    }
-                    StatText {
-                        visible: root.expanded
-                        text: "Octree Packets to Process: " + root.packetStats;
-                    }
-                    StatText {
-                        visible: root.expanded
-                        text: "Octree Elements - ";
-                    }
-                    StatText {
-                        visible: root.expanded
-                        text: "\tServer: " + root.serverElements +
-                            " Internal: " + root.serverInternal +
-                            " Leaves: " + root.serverLeaves;
-                    }
-                    StatText {
-                        visible: root.expanded
-                        text: "\tLocal: " + root.localElements +
-                            " Internal: " + root.localInternal +
-                            " Leaves: " + root.localLeaves;
-                    }
                     StatText {
                         visible: root.expanded
                         text: "LOD: " + root.lodStatus;

interface/src/LODManager.cpp

@@ -351,7 +351,18 @@ float LODManager::getHMDLODTargetFPS() const {
 }
 
 float LODManager::getLODTargetFPS() const {
-    auto refreshRateFPS = qApp->getRefreshRateManager().getActiveRefreshRate();
+
+    // Use the current refresh rate as the recommended rate target used to cap the LOD manager control value.
+    // When focused, Use the Focus Inactive as the targget LOD to void abrupt changes from the lod controller.
+    auto& refreshRateManager = qApp->getRefreshRateManager();
+    auto refreshRateRegime = refreshRateManager.getRefreshRateRegime();
+    auto refreshRateProfile = refreshRateManager.getRefreshRateProfile();
+    auto refreshRateUXMode = refreshRateManager.getUXMode();
+    auto refreshRateFPS = refreshRateManager.getActiveRefreshRate();
+    if (refreshRateRegime == RefreshRateManager::RefreshRateRegime::FOCUS_ACTIVE) {
+        refreshRateFPS = refreshRateManager.queryRefreshRateTarget(refreshRateProfile, RefreshRateManager::RefreshRateRegime::FOCUS_INACTIVE, refreshRateUXMode);
+    }
+
     auto lodTargetFPS = getDesktopLODTargetFPS();
     if (qApp->isHMDMode()) {
         lodTargetFPS = getHMDLODTargetFPS();

interface/src/PerformanceManager.cpp

@@ -69,13 +69,14 @@ void PerformanceManager::applyPerformancePreset(PerformanceManager::PerformanceP
             RenderScriptingInterface::getInstance()->setShadowsEnabled(true);
             qApp->getRefreshRateManager().setRefreshRateProfile(RefreshRateManager::RefreshRateProfile::REALTIME);
 
-        //    DependencyManager::get<LODManager>()->setWorldDetailQuality()
+            DependencyManager::get<LODManager>()->setWorldDetailQuality(0.5f);
 
         break;
         case PerformancePreset::MID:
             RenderScriptingInterface::getInstance()->setRenderMethod(RenderScriptingInterface::RenderMethod::DEFERRED);
             RenderScriptingInterface::getInstance()->setShadowsEnabled(false);
             qApp->getRefreshRateManager().setRefreshRateProfile(RefreshRateManager::RefreshRateProfile::INTERACTIVE);
+            DependencyManager::get<LODManager>()->setWorldDetailQuality(0.5f);
 
         break;
         case PerformancePreset::LOW:
@@ -83,6 +84,8 @@ void PerformanceManager::applyPerformancePreset(PerformanceManager::PerformanceP
             RenderScriptingInterface::getInstance()->setShadowsEnabled(false);
             qApp->getRefreshRateManager().setRefreshRateProfile(RefreshRateManager::RefreshRateProfile::ECO);
 
+            DependencyManager::get<LODManager>()->setWorldDetailQuality(0.75f);
+
         break;
         case PerformancePreset::UNKNOWN:
         default:

interface/src/RefreshRateManager.cpp

@@ -107,9 +107,7 @@ RefreshRateManager::RefreshRateProfile RefreshRateManager::getRefreshRateProfile
     RefreshRateManager::RefreshRateProfile profile = RefreshRateManager::RefreshRateProfile::REALTIME;
 
     if (getUXMode() != RefreshRateManager::UXMode::VR) {
-        profile =(RefreshRateManager::RefreshRateProfile) _refreshRateProfileSettingLock.resultWithReadLock<int>([&] {
-            return _refreshRateProfileSetting.get();
-        });
+        return _refreshRateProfile;
     }
 
     return profile;
@@ -138,15 +136,20 @@ void RefreshRateManager::setUXMode(RefreshRateManager::UXMode uxMode) {
     }
 }
 
+int RefreshRateManager::queryRefreshRateTarget(RefreshRateProfile profile, RefreshRateRegime regime, UXMode uxMode) const {
+    int targetRefreshRate;
+    if (uxMode == RefreshRateManager::UXMode::DESKTOP) {
+        targetRefreshRate = REFRESH_RATE_PROFILES[profile][regime];
+    }
+    else {
+        targetRefreshRate = VR_TARGET_RATE;
+    }
+    return targetRefreshRate;
+}
+
 void RefreshRateManager::updateRefreshRateController() const {
     if (_refreshRateOperator) {
-        int targetRefreshRate;
-        if (_uxMode == RefreshRateManager::UXMode::DESKTOP) {
-            targetRefreshRate = REFRESH_RATE_PROFILES[_refreshRateProfile][_refreshRateRegime];
-        } else {
-            targetRefreshRate = VR_TARGET_RATE;
-        }
-
+        int targetRefreshRate = queryRefreshRateTarget(_refreshRateProfile, _refreshRateRegime, _uxMode);
         _refreshRateOperator(targetRefreshRate);
         _activeRefreshRate = targetRefreshRate;
     }

interface/src/RefreshRateManager.h

@@ -65,6 +65,9 @@ public:
     int getActiveRefreshRate() const { return _activeRefreshRate; }
     void updateRefreshRateController() const;
 
+    // query the refresh rate target at the specified combination
+    int queryRefreshRateTarget(RefreshRateProfile profile, RefreshRateRegime regime, UXMode uxMode) const;
+
     void resetInactiveTimer();
     void toggleInactive();
 

interface/src/ui/Stats.cpp

@@ -416,6 +416,8 @@ void Stats::updateStats(bool force) {
     gpuContext->getFrameStats(gpuFrameStats);
 
     STAT_UPDATE(drawcalls, gpuFrameStats._DSNumDrawcalls);
+    STAT_UPDATE(lodTargetFramerate, DependencyManager::get<LODManager>()->getLODTargetFPS());
+    STAT_UPDATE(lodAngle, DependencyManager::get<LODManager>()->getLODAngleDeg());
 
 
     // Incoming packets

interface/src/ui/Stats.h

@@ -109,6 +109,8 @@ private: \
  * @property {number} shadowRendered - <em>Read-only.</em>
  * @property {string} sendingMode - <em>Read-only.</em>
  * @property {string} packetStats - <em>Read-only.</em>
+ * @property {number} lodAngle - <em>Read-only.</em>
+ * @property {number} lodTargetFramerate - <em>Read-only.</em>
  * @property {string} lodStatus - <em>Read-only.</em>
  * @property {string} timingStats - <em>Read-only.</em>
  * @property {string} gameUpdateStats - <em>Read-only.</em>
@@ -272,6 +274,8 @@ class Stats : public QQuickItem {
     STATS_PROPERTY(int, shadowRendered, 0)
     STATS_PROPERTY(QString, sendingMode, QString())
     STATS_PROPERTY(QString, packetStats, QString())
+    STATS_PROPERTY(int, lodAngle, 0)
+    STATS_PROPERTY(int, lodTargetFramerate, 0)
     STATS_PROPERTY(QString, lodStatus, QString())
     STATS_PROPERTY(QString, timingStats, QString())
     STATS_PROPERTY(QString, gameUpdateStats, QString())
@@ -858,6 +862,20 @@ signals:
      */
     void packetStatsChanged();
 
+    /**jsdoc
+     * Triggered when the value of the <code>lodAngle</code> property changes.
+     * @function Stats.lodAngleChanged
+     * @returns {Signal}
+     */
+    void lodAngleChanged();
+
+    /**jsdoc
+     * Triggered when the value of the <code>lodTargetFramerate</code> property changes.
+     * @function Stats.lodTargetFramerateChanged
+     * @returns {Signal}
+     */
+    void lodTargetFramerateChanged();
+
     /**jsdoc
      * Triggered when the value of the <code>lodStatus</code> property changes.
      * @function Stats.lodStatusChanged

libraries/platform/src/platform/backend/MACOSPlatform.cpp

@@ -102,8 +102,10 @@ void MACOSInstance::enumerateDisplays() {
 #ifdef Q_OS_MAC
     auto displayID = CGMainDisplayID();
     auto displaySize = CGDisplayScreenSize(displayID);
-    auto displaySizeWidthInches = displaySize.width * 0.0393701;
-    auto displaySizeHeightInches = displaySize.height * 0.0393701;
+
+    const auto MM_TO_IN = 0.0393701;
+    auto displaySizeWidthInches = displaySize.width * MM_TO_IN;
+    auto displaySizeHeightInches = displaySize.height * MM_TO_IN;
     auto displaySizeDiagonalInches = sqrt(displaySizeWidthInches * displaySizeWidthInches + displaySizeHeightInches * displaySizeHeightInches);
     
     auto displayPixelsWidth= CGDisplayPixelsWide(displayID);
@@ -125,12 +127,10 @@ void MACOSInstance::enumerateDisplays() {
     
     json display = {};
     
-   // display["physicalWidth"] = displaySizeWidthInches;
-   // display["physicalHeight"] = displaySizeHeightInches;
+    display["physicalWidth"] = displaySizeWidthInches;
+    display["physicalHeight"] = displaySizeHeightInches;
     display["physicalDiagonal"] = displaySizeDiagonalInches;
     
-  //  display["ppiH"] = displayModeWidth / displaySizeWidthInches;
-  //  display["ppiV"] = displayModeHeight / displaySizeHeightInches;
     display["ppi"] = sqrt(displayModeHeight * displayModeHeight + displayModeWidth * displayModeWidth) / displaySizeDiagonalInches;
     
     display["coordLeft"] = displayBounds.origin.x;
@@ -148,8 +148,7 @@ void MACOSInstance::enumerateDisplays() {
     display["refreshrate"] =displayRefreshrate;
     display["modeWidth"] = displayModeWidth;
     display["modeHeight"] = displayModeHeight;
-    
-    
+
     _display.push_back(display);
 #endif
 }