diff --git a/interface/src/Application.cpp b/interface/src/Application.cpp
index 9960e64bb4..d8ec35c584 100644
--- a/interface/src/Application.cpp
+++ b/interface/src/Application.cpp
@@ -812,8 +812,7 @@ void Application::initializeUi() {
         if (devicePixelRatio != oldDevicePixelRatio) {
             oldDevicePixelRatio = devicePixelRatio;
             qDebug() << "Device pixel ratio changed, triggering GL resize";
-            resizeGL(_glWidget->width(),
-                     _glWidget->height());
+            resizeGL();
         }
     });
 }
@@ -830,15 +829,7 @@ void Application::paintGL() {
     PerformanceWarning::setSuppressShortTimings(Menu::getInstance()->isOptionChecked(MenuOption::SuppressShortTimings));
     bool showWarnings = Menu::getInstance()->isOptionChecked(MenuOption::PipelineWarnings);
     PerformanceWarning warn(showWarnings, "Application::paintGL()");
-
-    // Set the desired FBO texture size. If it hasn't changed, this does nothing.
-    // Otherwise, it must rebuild the FBOs
-    if (OculusManager::isConnected()) {
-        DependencyManager::get<TextureCache>()->setFrameBufferSize(OculusManager::getRenderTargetSize());
-    } else {
-        QSize fbSize = _glWidget->getDeviceSize() * getRenderResolutionScale();
-        DependencyManager::get<TextureCache>()->setFrameBufferSize(fbSize);
-    }
+    resizeGL();
 
     glEnable(GL_LINE_SMOOTH);
 
@@ -915,7 +906,14 @@ void Application::paintGL() {
             renderRearViewMirror(_mirrorViewRect);       
         }
 
-        DependencyManager::get<GlowEffect>()->render();
+        auto finalFbo = DependencyManager::get<GlowEffect>()->render();
+
+        glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
+        glBindFramebuffer(GL_READ_FRAMEBUFFER, gpu::GLBackend::getFramebufferID(finalFbo));
+        glBlitFramebuffer(0, 0, _renderResolution.x, _renderResolution.y,
+                          0, 0, _glWidget->getDeviceSize().width(), _glWidget->getDeviceSize().height(),
+                            GL_COLOR_BUFFER_BIT, GL_NEAREST);
+
 
         {
             PerformanceTimer perfTimer("renderOverlay");
@@ -960,33 +958,47 @@ void Application::showEditEntitiesHelp() {
     InfoView::show(INFO_EDIT_ENTITIES_PATH);
 }
 
-void Application::resetCamerasOnResizeGL(Camera& camera, int width, int height) {
+void Application::resetCamerasOnResizeGL(Camera& camera, const glm::uvec2& size) {
     if (OculusManager::isConnected()) {
-        OculusManager::configureCamera(camera, width, height);
+        OculusManager::configureCamera(camera, size.x, size.y);
     } else if (TV3DManager::isConnected()) {
-        TV3DManager::configureCamera(camera, width, height);
+        TV3DManager::configureCamera(camera, size.x, size.y);
     } else {
-        camera.setAspectRatio((float)width / height);
+        camera.setAspectRatio((float)size.x / size.y);
         camera.setFieldOfView(_fieldOfView.get());
     }
 }
 
-void Application::resizeGL(int width, int height) {
-    DependencyManager::get<TextureCache>()->setFrameBufferSize(QSize(width, height));
-    resetCamerasOnResizeGL(_myCamera, width, height);
+void Application::resizeGL() {
+    // Set the desired FBO texture size. If it hasn't changed, this does nothing.
+    // Otherwise, it must rebuild the FBOs
+    QSize renderSize;
+    if (OculusManager::isConnected()) {
+        renderSize = OculusManager::getRenderTargetSize();
+    } else {
+        renderSize = _glWidget->getDeviceSize() * getRenderResolutionScale();
+    }
+    if (_renderResolution == toGlm(renderSize)) {
+    	return;
+    }
 
-    glViewport(0, 0, width, height); // shouldn't this account for the menu???
+    _renderResolution = toGlm(renderSize);
+    DependencyManager::get<TextureCache>()->setFrameBufferSize(renderSize);
+    resetCamerasOnResizeGL(_myCamera, _renderResolution);
+
+    glViewport(0, 0, _renderResolution.x, _renderResolution.y); // shouldn't this account for the menu???
 
     updateProjectionMatrix();
     glLoadIdentity();
 
     auto offscreenUi = DependencyManager::get<OffscreenUi>();
     offscreenUi->resize(_glWidget->size());
+    _glWidget->makeCurrent();
 
     // update Stats width
     // let's set horizontal offset to give stats some margin to mirror
     int horizontalOffset = MIRROR_VIEW_WIDTH + MIRROR_VIEW_LEFT_PADDING * 2;
-    Stats::getInstance()->resetWidth(width, horizontalOffset);
+    Stats::getInstance()->resetWidth(_renderResolution.x, horizontalOffset);
 }
 
 void Application::updateProjectionMatrix() {
@@ -1824,7 +1836,7 @@ void Application::setFullscreen(bool fullscreen) {
 }
 
 void Application::setEnable3DTVMode(bool enable3DTVMode) {
-    resizeGL(_glWidget->getDeviceWidth(), _glWidget->getDeviceHeight());
+    resizeGL();
 }
 
 void Application::setEnableVRMode(bool enableVRMode) {
@@ -1849,7 +1861,7 @@ void Application::setEnableVRMode(bool enableVRMode) {
         _myCamera.setHmdRotation(glm::quat());
     }
     
-    resizeGL(_glWidget->getDeviceWidth(), _glWidget->getDeviceHeight());
+    resizeGL();
     
     updateCursorVisibility();
 }
@@ -3227,12 +3239,12 @@ void Application::displaySide(Camera& theCamera, bool selfAvatarOnly, RenderArgs
                 _stars.render(theCamera.getFieldOfView(), theCamera.getAspectRatio(), theCamera.getNearClip(), alpha);
             }
 
-            // draw the sky dome
-            if (!selfAvatarOnly && Menu::getInstance()->isOptionChecked(MenuOption::Atmosphere)) {
-                PerformanceTimer perfTimer("atmosphere");
-                PerformanceWarning warn(Menu::getInstance()->isOptionChecked(MenuOption::PipelineWarnings),
-                    "Application::displaySide() ... atmosphere...");
-                _environment.renderAtmospheres(theCamera);
+            // draw the sky dome
+            if (!selfAvatarOnly && Menu::getInstance()->isOptionChecked(MenuOption::Atmosphere)) {
+                PerformanceTimer perfTimer("atmosphere");
+                PerformanceWarning warn(Menu::getInstance()->isOptionChecked(MenuOption::PipelineWarnings),
+                    "Application::displaySide() ... atmosphere...");
+                _environment.renderAtmospheres(theCamera);
             }
 
         }
@@ -4635,7 +4647,3 @@ PickRay Application::computePickRay() const {
 bool Application::hasFocus() const {
     return _glWidget->hasFocus();
 }
-
-void Application::resizeGL() {
-    this->resizeGL(_glWidget->getDeviceWidth(), _glWidget->getDeviceHeight());
-}
diff --git a/interface/src/Application.h b/interface/src/Application.h
index 10df094c2e..5a3756e768 100644
--- a/interface/src/Application.h
+++ b/interface/src/Application.h
@@ -163,7 +163,7 @@ public:
     void initializeGL();
     void initializeUi();
     void paintGL();
-    void resizeGL(int width, int height);
+    void resizeGL();
 
     void resizeEvent(QResizeEvent * size);
 
@@ -194,7 +194,6 @@ public:
     bool hasFocus() const;
     PickRay computePickRay() const;
     PickRay computeViewPickRay(float xRatio, float yRatio) const;
-    void resizeGL();
 
     bool isThrottleRendering() const;
 
@@ -463,7 +462,7 @@ private slots:
     void setCursorVisible(bool visible);
 
 private:
-    void resetCamerasOnResizeGL(Camera& camera, int width, int height);
+    void resetCamerasOnResizeGL(Camera& camera, const glm::uvec2& size);
     void updateProjectionMatrix();
     void updateProjectionMatrix(Camera& camera, bool updateViewFrustum = true);
 
@@ -662,6 +661,7 @@ private:
     QHash<QString, AcceptURLMethod> _acceptedExtensions;
 
     QList<QString> _domainConnectionRefusals;
+    glm::uvec2 _renderResolution;
 };
 
 #endif // hifi_Application_h
diff --git a/interface/src/GLCanvas.cpp b/interface/src/GLCanvas.cpp
index 2cbec1b258..995e1908a9 100644
--- a/interface/src/GLCanvas.cpp
+++ b/interface/src/GLCanvas.cpp
@@ -64,7 +64,7 @@ void GLCanvas::paintGL() {
 }
 
 void GLCanvas::resizeGL(int width, int height) {
-    Application::getInstance()->resizeGL(width, height);
+    Application::getInstance()->resizeGL();
 }
 
 void GLCanvas::activeChanged(Qt::ApplicationState state) {
diff --git a/interface/src/Menu.h b/interface/src/Menu.h
index b15607df8f..d4ff3dead2 100644
--- a/interface/src/Menu.h
+++ b/interface/src/Menu.h
@@ -181,7 +181,7 @@ namespace MenuOption {
     const QString EditEntitiesHelp = "Edit Entities Help...";
     const QString Enable3DTVMode = "Enable 3DTV Mode";
     const QString EnableCharacterController = "Enable avatar collisions";
-    const QString EnableGlowEffect = "Enable Glow Effect (Warning: Poor Oculus Performance)";
+    const QString EnableGlowEffect = "Enable Glow Effect";
     const QString EnableVRMode = "Enable VR Mode";
     const QString ExpandMyAvatarSimulateTiming = "Expand /myAvatar/simulation";
     const QString ExpandMyAvatarTiming = "Expand /myAvatar";
diff --git a/interface/src/devices/OculusManager.cpp b/interface/src/devices/OculusManager.cpp
index 065b7499d3..f4693d3c08 100644
--- a/interface/src/devices/OculusManager.cpp
+++ b/interface/src/devices/OculusManager.cpp
@@ -627,7 +627,7 @@ void OculusManager::display(QGLWidget * glCanvas, const glm::quat &bodyOrientati
     if (Menu::getInstance()->isOptionChecked(MenuOption::EnableGlowEffect)) {
         //Full texture viewport for glow effect
         glViewport(0, 0, _renderTargetSize.w, _renderTargetSize.h);
-        finalFbo = DependencyManager::get<GlowEffect>()->render(true);
+        finalFbo = DependencyManager::get<GlowEffect>()->render();
     } else {
         finalFbo = DependencyManager::get<TextureCache>()->getPrimaryFramebuffer(); 
         glBindFramebuffer(GL_FRAMEBUFFER, 0);
diff --git a/interface/src/devices/TV3DManager.cpp b/interface/src/devices/TV3DManager.cpp
index 9d5dd2faae..5d60bf7e19 100644
--- a/interface/src/devices/TV3DManager.cpp
+++ b/interface/src/devices/TV3DManager.cpp
@@ -14,7 +14,7 @@
 #include <glm/glm.hpp>
 
 #include <GlowEffect.h>
-
+#include "gpu/GLBackend.h"
 #include "Application.h"
 
 #include "TV3DManager.h"
@@ -163,10 +163,18 @@ void TV3DManager::display(Camera& whichCamera) {
     glPopMatrix();
     glDisable(GL_SCISSOR_TEST);
 
+    auto finalFbo = DependencyManager::get<GlowEffect>()->render();
+    auto fboSize = finalFbo->getSize();
+    // Get the ACTUAL device size for the BLIT
+    deviceSize = qApp->getDeviceSize();
+    glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
+    glBindFramebuffer(GL_READ_FRAMEBUFFER, gpu::GLBackend::getFramebufferID(finalFbo));
+    glBlitFramebuffer(0, 0, fboSize.x, fboSize.y,
+                      0, 0, deviceSize.width(), deviceSize.height(),
+                        GL_COLOR_BUFFER_BIT, GL_NEAREST);
+
     // reset the viewport to how we started
     glViewport(0, 0, deviceSize.width(), deviceSize.height());
-
-    DependencyManager::get<GlowEffect>()->render();
 }
 
 void TV3DManager::overrideOffAxisFrustum(float& left, float& right, float& bottom, float& top, float& nearVal,
diff --git a/interface/src/ui/ApplicationOverlay.cpp b/interface/src/ui/ApplicationOverlay.cpp
index 5c878b484c..1bfdf88032 100644
--- a/interface/src/ui/ApplicationOverlay.cpp
+++ b/interface/src/ui/ApplicationOverlay.cpp
@@ -190,8 +190,8 @@ void ApplicationOverlay::renderOverlay() {
     Overlays& overlays = qApp->getOverlays();
     
     _textureFov = glm::radians(_hmdUIAngularSize);
-    glm::vec2 deviceSize = qApp->getCanvasSize();
-    _textureAspectRatio = (float)deviceSize.x / (float)deviceSize.y;
+    glm::vec2 size = qApp->getCanvasSize();
+    _textureAspectRatio = aspect(size);
 
     //Handle fading and deactivation/activation of UI
     
@@ -204,12 +204,13 @@ void ApplicationOverlay::renderOverlay() {
     _overlays.buildFramebufferObject();
     _overlays.bind();
     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+    glViewport(0, 0, size.x, size.y);
 
     glPushMatrix(); {
         const float NEAR_CLIP = -10000;
         const float FAR_CLIP = 10000;
         glLoadIdentity();
-        glOrtho(0, deviceSize.x, deviceSize.y, 0, NEAR_CLIP, FAR_CLIP);
+        glOrtho(0, size.x, size.y, 0, NEAR_CLIP, FAR_CLIP);
 
         glMatrixMode(GL_MODELVIEW);
 
@@ -269,6 +270,7 @@ void ApplicationOverlay::displayOverlayTexture() {
         if (_alpha < 1.0) {
             glEnable(GL_BLEND);
         }
+        glViewport(0, 0, qApp->getDeviceSize().width(), qApp->getDeviceSize().height());
 
         static const glm::vec2 topLeft(-1, 1);
         static const glm::vec2 bottomRight(1, -1);
@@ -1129,8 +1131,9 @@ void ApplicationOverlay::TexturedHemisphere::cleanupVBO() {
 }
 
 void ApplicationOverlay::TexturedHemisphere::buildFramebufferObject() {
-    auto deviceSize = qApp->getDeviceSize();
-    if (_framebufferObject != NULL && deviceSize == _framebufferObject->size()) {
+    auto canvasSize = qApp->getCanvasSize();
+    QSize fboSize = QSize(canvasSize.x, canvasSize.y);
+    if (_framebufferObject != NULL && fboSize == _framebufferObject->size()) {
         // Already build
         return;
     }
@@ -1139,7 +1142,7 @@ void ApplicationOverlay::TexturedHemisphere::buildFramebufferObject() {
         delete _framebufferObject;
     }
     
-    _framebufferObject = new QOpenGLFramebufferObject(deviceSize, QOpenGLFramebufferObject::Depth);
+    _framebufferObject = new QOpenGLFramebufferObject(fboSize, QOpenGLFramebufferObject::Depth);
     glBindTexture(GL_TEXTURE_2D, getTexture());
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
diff --git a/libraries/render-utils/src/FboCache.cpp b/libraries/render-utils/src/FboCache.cpp
index de2b483573..b6cca8116b 100644
--- a/libraries/render-utils/src/FboCache.cpp
+++ b/libraries/render-utils/src/FboCache.cpp
@@ -95,4 +95,7 @@ void FboCache::setSize(const QSize& newSize) {
     });
 }
 
+const QSize& FboCache::getSize() {
+    return _size;
+}
 
diff --git a/libraries/render-utils/src/FboCache.h b/libraries/render-utils/src/FboCache.h
index 30278470fd..78c3194eb5 100644
--- a/libraries/render-utils/src/FboCache.h
+++ b/libraries/render-utils/src/FboCache.h
@@ -37,6 +37,8 @@ public:
     // internal locks and  pointers but execute no OpenGL opreations.
     void lockTexture(int texture);
     void releaseTexture(int texture);
+    
+    const QSize& getSize();
 
 protected:
     QMap<int, QSharedPointer<QOpenGLFramebufferObject>> _fboMap;
diff --git a/libraries/render-utils/src/GlowEffect.cpp b/libraries/render-utils/src/GlowEffect.cpp
index 3040088ce5..bb18729f12 100644
--- a/libraries/render-utils/src/GlowEffect.cpp
+++ b/libraries/render-utils/src/GlowEffect.cpp
@@ -129,7 +129,7 @@ static void maybeRelease(const gpu::FramebufferPointer& fbo) {
     }
 }
 
-gpu::FramebufferPointer GlowEffect::render(bool toTexture) {
+gpu::FramebufferPointer GlowEffect::render() {
     PerformanceTimer perfTimer("glowEffect");
 
     auto textureCache = DependencyManager::get<TextureCache>();
@@ -151,26 +151,24 @@ gpu::FramebufferPointer GlowEffect::render(bool toTexture) {
     glDisable(GL_DEPTH_TEST);
     glDepthMask(GL_FALSE);
 
-    gpu::FramebufferPointer destFBO = toTexture ?
-        textureCache->getSecondaryFramebuffer() : nullptr;
+    gpu::FramebufferPointer destFBO = textureCache->getSecondaryFramebuffer();
     if (!_enabled || _isEmpty) {
         // copy the primary to the screen
-        if (destFBO && QOpenGLFramebufferObject::hasOpenGLFramebufferBlit()) {
-            glBindFramebuffer(GL_READ_FRAMEBUFFER, primaryFBO);
+        if (QOpenGLFramebufferObject::hasOpenGLFramebufferBlit()) {
             glBindFramebuffer(GL_DRAW_FRAMEBUFFER, gpu::GLBackend::getFramebufferID(destFBO));
-            glBlitFramebuffer(0, 0, framebufferSize.width(), framebufferSize.height(), 0, 0, framebufferSize.width(), framebufferSize.height(), GL_COLOR_BUFFER_BIT, GL_NEAREST);
+            glBindFramebuffer(GL_READ_FRAMEBUFFER, primaryFBO);
+            glBlitFramebuffer(0, 0, framebufferSize.width(), framebufferSize.height(),
+                              0, 0, framebufferSize.width(), framebufferSize.height(),
+                              GL_COLOR_BUFFER_BIT, GL_NEAREST);
         } else {
-            maybeBind(destFBO);
-            if (!destFBO) {
-                //destFBO->getSize();
-                glViewport(0, 0, framebufferSize.width(), framebufferSize.height());
-            }
+            glBindFramebuffer(GL_FRAMEBUFFER, gpu::GLBackend::getFramebufferID(destFBO));
+            glViewport(0, 0, framebufferSize.width(), framebufferSize.height());
             glEnable(GL_TEXTURE_2D);
             glDisable(GL_LIGHTING);
             renderFullscreenQuad();
             glDisable(GL_TEXTURE_2D);
             glEnable(GL_LIGHTING);
-            maybeRelease(destFBO);
+            glBindFramebuffer(GL_FRAMEBUFFER, 0);
         }
     } else {
         // diffuse into the secondary/tertiary (alternating between frames)
@@ -199,22 +197,18 @@ gpu::FramebufferPointer GlowEffect::render(bool toTexture) {
             _diffuseProgram->release();
         }
         
-        glBindFramebuffer(GL_FRAMEBUFFER, 0);
+        destFBO = oldDiffusedFBO;
 
+        glBindFramebuffer(GL_FRAMEBUFFER, 0);
         // add diffused texture to the primary
         glBindTexture(GL_TEXTURE_2D, gpu::GLBackend::getTextureID(newDiffusedFBO->getRenderBuffer(0)));
         
-        if (toTexture) {
-            destFBO = oldDiffusedFBO;
-        }
-        maybeBind(destFBO);
-        if (!destFBO) {
-            glViewport(0, 0, framebufferSize.width(), framebufferSize.height());
-        }
+        glBindFramebuffer(GL_FRAMEBUFFER, gpu::GLBackend::getFramebufferID(destFBO));
+        glViewport(0, 0, framebufferSize.width(), framebufferSize.height());
         _addSeparateProgram->bind();
         renderFullscreenQuad();
         _addSeparateProgram->release();
-        maybeRelease(destFBO);
+        glBindFramebuffer(GL_FRAMEBUFFER, 0);
         
         glBindTexture(GL_TEXTURE_2D, 0);
         glActiveTexture(GL_TEXTURE0);
diff --git a/libraries/render-utils/src/GlowEffect.h b/libraries/render-utils/src/GlowEffect.h
index 1cee7b2e9d..73c512ecf5 100644
--- a/libraries/render-utils/src/GlowEffect.h
+++ b/libraries/render-utils/src/GlowEffect.h
@@ -52,7 +52,7 @@ public:
     /// Renders the glow effect.  To be called after rendering the scene.
     /// \param toTexture whether to render to a texture, rather than to the frame buffer
     /// \return the framebuffer object to which we rendered, or NULL if to the frame buffer
-    gpu::FramebufferPointer render(bool toTexture = false);
+    gpu::FramebufferPointer render();
 
 public slots:
     void toggleGlowEffect(bool enabled);
diff --git a/libraries/shared/src/GLMHelpers.h b/libraries/shared/src/GLMHelpers.h
index a06f6f26cf..9b7cca70ee 100644
--- a/libraries/shared/src/GLMHelpers.h
+++ b/libraries/shared/src/GLMHelpers.h
@@ -117,6 +117,11 @@ QMatrix4x4 fromGlm(const glm::mat4 & m);
 
 QRectF glmToRect(const glm::vec2 & pos, const glm::vec2 & size);
 
+template <typename T>
+float aspect(const T& t) {
+    return (float)t.x / (float)t.y;
+}
+
 #define YAW(euler) euler.y
 #define PITCH(euler) euler.x
 #define ROLL(euler) euler.z
diff --git a/libraries/ui/src/OffscreenUi.cpp b/libraries/ui/src/OffscreenUi.cpp
index 9b32aca96f..7d13a00324 100644
--- a/libraries/ui/src/OffscreenUi.cpp
+++ b/libraries/ui/src/OffscreenUi.cpp
@@ -117,8 +117,13 @@ void OffscreenUi::addImportPath(const QString& path) {
 void OffscreenUi::resize(const QSize& newSize) {
     makeCurrent();
 
-    // Clear out any fbos with the old size
     qreal pixelRatio = _renderControl->_renderWindow ? _renderControl->_renderWindow->devicePixelRatio() : 1.0;
+	QSize newOffscreenSize = newSize * pixelRatio;
+    if (newOffscreenSize == _fboCache.getSize()) {
+        return;
+    }
+
+    // Clear out any fbos with the old size
     qDebug() << "Offscreen UI resizing to " << newSize.width() << "x" << newSize.height() << " with pixel ratio " << pixelRatio;
     _fboCache.setSize(newSize * pixelRatio);