diff --git a/.gitignore b/.gitignore
index 8886576423..df91e0ca7b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -78,6 +78,8 @@ TAGS
 node_modules
 npm-debug.log
 
+# ignore qmlc files generated from qml as cache
+*.qmlc
 # Android studio files
 *___jb_old___
 
diff --git a/interface/src/Application_render.cpp b/interface/src/Application_render.cpp
index fd3391ad8e..868299537c 100644
--- a/interface/src/Application_render.cpp
+++ b/interface/src/Application_render.cpp
@@ -216,7 +216,7 @@ void Application::runRenderFrame(RenderArgs* renderArgs) {
 
     // Make sure the WorldBox is in the scene
     // For the record, this one RenderItem is the first one we created and added to the scene.
-    // We could meoee that code elsewhere but you know...
+    // We could move that code elsewhere but you know...
     if (!render::Item::isValidID(WorldBoxRenderData::_item)) {
         auto worldBoxRenderData = std::make_shared<WorldBoxRenderData>();
         auto worldBoxRenderPayload = std::make_shared<WorldBoxRenderData::Payload>(worldBoxRenderData);
diff --git a/libraries/display-plugins/src/display-plugins/hmd/DebugHmdDisplayPlugin.cpp b/libraries/display-plugins/src/display-plugins/hmd/DebugHmdDisplayPlugin.cpp
index e01a205a3c..4c89cf8821 100644
--- a/libraries/display-plugins/src/display-plugins/hmd/DebugHmdDisplayPlugin.cpp
+++ b/libraries/display-plugins/src/display-plugins/hmd/DebugHmdDisplayPlugin.cpp
@@ -65,6 +65,10 @@ bool DebugHmdDisplayPlugin::internalActivate() {
     //_eyeInverseProjections[1] = glm::inverse(_eyeProjections[1]);
     _eyeOffsets[0][3] = vec4{ -0.0327499993, 0.0, 0.0149999997, 1.0 };
     _eyeOffsets[1][3] = vec4{ 0.0327499993, 0.0, 0.0149999997, 1.0 };
+    _eyeInverseProjections[0] = glm::inverse(_eyeProjections[0]);
+    _eyeInverseProjections[1] = glm::inverse(_eyeProjections[1]);
+    _eyeOffsets[0][3] = vec4{ -0.0327499993, 0.0, -0.0149999997, 1.0 };
+    _eyeOffsets[1][3] = vec4{ 0.0327499993, 0.0, -0.0149999997, 1.0 };
     _renderTargetSize = { 3024, 1680 };
     _cullingProjection = _eyeProjections[0];
     // This must come after the initialization, so that the values calculated
@@ -74,6 +78,7 @@ bool DebugHmdDisplayPlugin::internalActivate() {
 }
 
 void DebugHmdDisplayPlugin::updatePresentPose() {
+    Parent::updatePresentPose();
     if (_isAutoRotateEnabled) {
         float yaw = sinf(secTimestampNow()) * 0.25f;
         float pitch = cosf(secTimestampNow()) * 0.25f;
diff --git a/libraries/display-plugins/src/display-plugins/stereo/StereoDisplayPlugin.cpp b/libraries/display-plugins/src/display-plugins/stereo/StereoDisplayPlugin.cpp
index ae8f9ec039..cfdfb1fc21 100644
--- a/libraries/display-plugins/src/display-plugins/stereo/StereoDisplayPlugin.cpp
+++ b/libraries/display-plugins/src/display-plugins/stereo/StereoDisplayPlugin.cpp
@@ -101,3 +101,4 @@ void StereoDisplayPlugin::internalDeactivate() {
 float StereoDisplayPlugin::getRecommendedAspectRatio() const {
     return aspect(Parent::getRecommendedRenderSize());
 }
+
diff --git a/libraries/display-plugins/src/display-plugins/stereo/StereoDisplayPlugin.h b/libraries/display-plugins/src/display-plugins/stereo/StereoDisplayPlugin.h
index 3b481dce97..c4205ea1db 100644
--- a/libraries/display-plugins/src/display-plugins/stereo/StereoDisplayPlugin.h
+++ b/libraries/display-plugins/src/display-plugins/stereo/StereoDisplayPlugin.h
@@ -26,7 +26,7 @@ public:
     // the IPD at the Application level, the way we now allow with HMDs.
     // If that becomes an issue then we'll need to break up the functionality similar
     // to the HMD plugins.  
-    // virtual glm::mat4 getEyeToHeadTransform(Eye eye) const override;
+    //virtual glm::mat4 getEyeToHeadTransform(Eye eye) const override;
 
 protected:
     virtual bool internalActivate() override;
diff --git a/libraries/gpu/src/gpu/Buffer.cpp b/libraries/gpu/src/gpu/Buffer.cpp
index 7ed2411c71..02e6c552cf 100644
--- a/libraries/gpu/src/gpu/Buffer.cpp
+++ b/libraries/gpu/src/gpu/Buffer.cpp
@@ -98,8 +98,8 @@ Buffer::Update::Update(const Buffer& parent) : buffer(parent) {
 
 void Buffer::Update::apply() const {
     // Make sure we're loaded in order
-    ++buffer._applyUpdateCount;
-    assert(buffer._applyUpdateCount.load() == updateNumber);
+    auto applyUpdateCount = ++buffer._applyUpdateCount;
+    assert(applyUpdateCount == updateNumber);
     const auto pageSize = buffer._pages._pageSize;
     buffer._renderSysmem.resize(size);
     buffer._renderPages.accommodate(size);
diff --git a/libraries/plugins/src/plugins/DisplayPlugin.cpp b/libraries/plugins/src/plugins/DisplayPlugin.cpp
index 2a8a72f594..47503e8f85 100644
--- a/libraries/plugins/src/plugins/DisplayPlugin.cpp
+++ b/libraries/plugins/src/plugins/DisplayPlugin.cpp
@@ -42,4 +42,9 @@ std::function<void(gpu::Batch&, const gpu::TexturePointer&, bool mirror)> Displa
         hudOperator = _hudOperator;
     }
     return hudOperator;
-}
\ No newline at end of file
+}
+
+glm::mat4 HmdDisplay::getEyeToHeadTransform(Eye eye) const {
+    static const glm::mat4 xform;
+    return xform;
+}
diff --git a/libraries/plugins/src/plugins/DisplayPlugin.h b/libraries/plugins/src/plugins/DisplayPlugin.h
index 2c717f629c..e95084df52 100644
--- a/libraries/plugins/src/plugins/DisplayPlugin.h
+++ b/libraries/plugins/src/plugins/DisplayPlugin.h
@@ -93,9 +93,7 @@ class HmdDisplay : public StereoDisplay {
 public:
     // HMD specific methods
     // TODO move these into another class?
-    virtual glm::mat4 getEyeToHeadTransform(Eye eye) const {
-        static const glm::mat4 transform; return transform;
-    }
+    virtual glm::mat4 getEyeToHeadTransform(Eye eye) const;
 
     // returns a copy of the most recent head pose, computed via updateHeadPose
     virtual glm::mat4 getHeadPose() const {
diff --git a/libraries/render-utils/src/AntialiasingEffect.h b/libraries/render-utils/src/AntialiasingEffect.h
index 81542a179a..d201be3f73 100644
--- a/libraries/render-utils/src/AntialiasingEffect.h
+++ b/libraries/render-utils/src/AntialiasingEffect.h
@@ -106,12 +106,12 @@ class AntialiasingConfig : public render::Job::Config {
 public:
     AntialiasingConfig() : render::Job::Config(true) {}
 
-    float blend{ 0.1f };
+    float blend{ 0.075f };
 
 
     bool constrainColor{ true };
     bool covarianceClipColor{ true };
-    float covarianceGamma{ 1.0f };
+    float covarianceGamma{ 0.9f };
     bool clipExactColor{ false };
     bool feedbackColor{ false };
 
diff --git a/libraries/render-utils/src/DeferredFrameTransform.cpp b/libraries/render-utils/src/DeferredFrameTransform.cpp
index d6dc9e1372..34d3a56d23 100644
--- a/libraries/render-utils/src/DeferredFrameTransform.cpp
+++ b/libraries/render-utils/src/DeferredFrameTransform.cpp
@@ -48,6 +48,7 @@ void DeferredFrameTransform::update(RenderArgs* args) {
         frameTransformBuffer.projection[0] = frameTransformBuffer.projectionMono;
         frameTransformBuffer.stereoInfo = glm::vec4(0.0f, (float)args->_viewport.z, 0.0f, 0.0f);
         frameTransformBuffer.invpixelInfo = glm::vec4(1.0f / args->_viewport.z, 1.0f / args->_viewport.w, 0.0f, 0.0f);
+        frameTransformBuffer.invProjection[0] = glm::inverse(frameTransformBuffer.projection[0]);
     } else {
 
         mat4 projMats[2];
@@ -59,6 +60,7 @@ void DeferredFrameTransform::update(RenderArgs* args) {
             // Compose the mono Eye space to Stereo clip space Projection Matrix
             auto sideViewMat = projMats[i] * eyeViews[i];
             frameTransformBuffer.projection[i] = sideViewMat;
+            frameTransformBuffer.invProjection[i] = glm::inverse(sideViewMat);
         }
 
         frameTransformBuffer.stereoInfo = glm::vec4(1.0f, (float)(args->_viewport.z >> 1), 0.0f, 1.0f);
diff --git a/libraries/render-utils/src/DeferredFrameTransform.h b/libraries/render-utils/src/DeferredFrameTransform.h
index a90effe053..0b5cb6a989 100644
--- a/libraries/render-utils/src/DeferredFrameTransform.h
+++ b/libraries/render-utils/src/DeferredFrameTransform.h
@@ -45,6 +45,8 @@ protected:
         glm::vec4 stereoInfo{ 0.0 };
         // Mono proj matrix or Left and Right proj matrix going from Mono Eye space to side clip space
         glm::mat4 projection[2];
+        // Inverse proj matrix or Left and Right proj matrix going from Mono Eye space to side clip space
+        glm::mat4 invProjection[2];
         // THe mono projection for sure
         glm::mat4 projectionMono;
         // Inv View matrix from eye space (mono) to world space
diff --git a/libraries/render-utils/src/DeferredTransform.slh b/libraries/render-utils/src/DeferredTransform.slh
index 25d352387f..f1765978eb 100644
--- a/libraries/render-utils/src/DeferredTransform.slh
+++ b/libraries/render-utils/src/DeferredTransform.slh
@@ -31,6 +31,7 @@ struct DeferredFrameTransform {
     vec4 _depthInfo;
     vec4 _stereoInfo;
     mat4 _projection[2];
+    mat4 _invProjection[2];
     mat4 _projectionMono;
     mat4 _viewInverse;
     mat4 _view;
@@ -128,6 +129,14 @@ vec3 evalEyePositionFromZeye(int side, float Zeye, vec2 texcoord) {
     return vec3(Xe, Ye, Zeye);
 }
 
+vec3 evalEyePositionFromZdb(int side, float Zdb, vec2 texcoord) {
+    // compute the view space position using the depth
+    vec3 clipPos;
+    clipPos.xyz = vec3(texcoord.xy, Zdb) * 2.0 - 1.0;
+    vec4 eyePos = frameTransform._invProjection[side] * vec4(clipPos.xyz, 1.0);
+    return eyePos.xyz / eyePos.w;
+}
+
 ivec2 getPixelPosTexcoordPosAndSide(in vec2 glFragCoord, out ivec2 pixelPos, out vec2 texcoordPos, out ivec4 stereoSide) {
     ivec2 fragPos = ivec2(glFragCoord.xy);
 
diff --git a/libraries/render-utils/src/RenderCommonTask.cpp b/libraries/render-utils/src/RenderCommonTask.cpp
index 5bf42e8aca..d721664794 100644
--- a/libraries/render-utils/src/RenderCommonTask.cpp
+++ b/libraries/render-utils/src/RenderCommonTask.cpp
@@ -18,13 +18,13 @@ extern void initOverlay3DPipelines(render::ShapePlumber& plumber, bool depthTest
 
 void BeginGPURangeTimer::run(const render::RenderContextPointer& renderContext, gpu::RangeTimerPointer& timer) {
     timer = _gpuTimer;
-    gpu::doInBatch("BeginGPURangeTimer::run", renderContext->args->_context, [&](gpu::Batch& batch) {
+    gpu::doInBatch("BeginGPURangeTimer", renderContext->args->_context, [&](gpu::Batch& batch) {
         _gpuTimer->begin(batch);
     });
 }
 
 void EndGPURangeTimer::run(const render::RenderContextPointer& renderContext, const gpu::RangeTimerPointer& timer) {
-    gpu::doInBatch("EndGPURangeTimer::run", renderContext->args->_context, [&](gpu::Batch& batch) {
+    gpu::doInBatch("EndGPURangeTimer", renderContext->args->_context, [&](gpu::Batch& batch) {
         timer->end(batch);
     });
     
@@ -64,7 +64,7 @@ void DrawOverlay3D::run(const RenderContextPointer& renderContext, const Inputs&
         }
 
         // Render the items
-        gpu::doInBatch("DrawOverlay3D::run", args->_context, [&](gpu::Batch& batch) {
+        gpu::doInBatch("DrawOverlay3D::main", args->_context, [&](gpu::Batch& batch) {
             args->_batch = &batch;
             batch.setViewportTransform(args->_viewport);
             batch.setStateScissorRect(args->_viewport);
@@ -97,7 +97,7 @@ void CompositeHUD::run(const RenderContextPointer& renderContext) {
 
     // Grab the HUD texture
 #if !defined(DISABLE_QML)
-    gpu::doInBatch("CompositeHUD::run", renderContext->args->_context, [&](gpu::Batch& batch) {
+    gpu::doInBatch("CompositeHUD", renderContext->args->_context, [&](gpu::Batch& batch) {
         if (renderContext->args->_hudOperator) {
             renderContext->args->_hudOperator(batch, renderContext->args->_hudTexture, renderContext->args->_renderMode == RenderArgs::RenderMode::MIRROR_RENDER_MODE);
         }
@@ -124,7 +124,7 @@ void Blit::run(const RenderContextPointer& renderContext, const gpu::Framebuffer
     // Blit primary to blit FBO
     auto primaryFbo = srcFramebuffer;
 
-    gpu::doInBatch("Blit::run", renderArgs->_context, [&](gpu::Batch& batch) {
+    gpu::doInBatch("Blit", renderArgs->_context, [&](gpu::Batch& batch) {
         batch.setFramebuffer(blitFbo);
 
         if (renderArgs->_renderMode == RenderArgs::MIRROR_RENDER_MODE) {
diff --git a/libraries/render-utils/src/RenderDeferredTask.cpp b/libraries/render-utils/src/RenderDeferredTask.cpp
index 2d00724fb3..0059a5ab65 100644
--- a/libraries/render-utils/src/RenderDeferredTask.cpp
+++ b/libraries/render-utils/src/RenderDeferredTask.cpp
@@ -250,7 +250,7 @@ void RenderDeferredTask::build(JobModel& task, const render::Varying& input, ren
     const auto antialiasingInputs = Antialiasing::Inputs(deferredFrameTransform, primaryFramebuffer, linearDepthTarget, velocityBuffer).asVarying();
     task.addJob<Antialiasing>("Antialiasing", antialiasingInputs);
 
-     // Debugging stages
+    // Debugging stages
     {
         // Debugging Deferred buffer job
         const auto debugFramebuffers = render::Varying(DebugDeferredBuffer::Inputs(deferredFramebuffer, linearDepthTarget, surfaceGeometryFramebuffer, ambientOcclusionFramebuffer, velocityBuffer, deferredFrameTransform));
@@ -420,4 +420,3 @@ void DrawStateSortDeferred::run(const RenderContextPointer& renderContext, const
 
     config->setNumDrawn((int)inItems.size());
 }
-
diff --git a/libraries/render-utils/src/taa.slh b/libraries/render-utils/src/taa.slh
index 6d5addba49..232d1e9f70 100644
--- a/libraries/render-utils/src/taa.slh
+++ b/libraries/render-utils/src/taa.slh
@@ -287,7 +287,7 @@ mat3 taa_evalNeighbourColorVariance(vec3 sourceColor, vec2 fragUV, vec2 fragVelo
 
     
     vec3 mu = sumSamples / vec3(9.0);
-    vec3 sigma = sqrt(max(sumSamples2 / vec3(9.0) - mu * mu, vec3(0)));
+    vec3 sigma = sqrt(max(sumSamples2 / vec3(9.0) - mu * mu, vec3(0.0)));
     
        float gamma = params.covarianceGamma;
        vec3 cmin = mu - gamma * sigma;
diff --git a/libraries/render-utils/src/velocityBuffer_cameraMotion.slf b/libraries/render-utils/src/velocityBuffer_cameraMotion.slf
index 7488f42535..d908ea24da 100644
--- a/libraries/render-utils/src/velocityBuffer_cameraMotion.slf
+++ b/libraries/render-utils/src/velocityBuffer_cameraMotion.slf
@@ -26,14 +26,14 @@ void main(void) {
     ivec2 framePixelPos = getPixelPosTexcoordPosAndSide(gl_FragCoord.xy, pixelPos, texcoordPos, stereoSide);
     
 	float Zdb = texelFetch(depthMap, ivec2(gl_FragCoord.xy), 0).x;
-    float Zeye = evalZeyeFromZdb(Zdb);
-/*	if (Zeye <= -getPosLinearDepthFar()) {
+/*    float Zeye = evalZeyeFromZdb(Zdb);
+	if (Zeye <= -getPosLinearDepthFar()) {
        outFragColor = vec4(0.5, 0.5, 0.0, 0.0);
        return;
     }*/
 
 	// The position of the pixel fragment in Eye space then in world space
-    vec3 eyePos = evalEyePositionFromZeye(stereoSide.x, Zeye, texcoordPos);
+    vec3 eyePos = evalEyePositionFromZdb(stereoSide.x, Zdb, texcoordPos);
 	vec3 worldPos = (frameTransform._viewInverse * cameraCorrection._correction * vec4(eyePos, 1.0)).xyz;
     
     vec3 prevEyePos = (cameraCorrection._prevCorrectionInverse * frameTransform._prevView * vec4(worldPos, 1.0)).xyz;
diff --git a/scripts/developer/utilities/render/deferredLighting.qml b/scripts/developer/utilities/render/deferredLighting.qml
index 1da7871172..189d23c44f 100644
--- a/scripts/developer/utilities/render/deferredLighting.qml
+++ b/scripts/developer/utilities/render/deferredLighting.qml
@@ -200,6 +200,7 @@ Rectangle {
                     ListElement { text: "Debug Scattering"; color: "White" }
                     ListElement { text: "Ambient Occlusion"; color: "White" }
                     ListElement { text: "Ambient Occlusion Blurred"; color: "White" }
+                    ListElement { text: "Velocity"; color: "White" }
                     ListElement { text: "Custom"; color: "White" }
                 }
                 width: 200