VR + Ray Tracing not working at all (since 4.22)
The question is will it ever working? 4.23 release? 4.24? 5.XX? 
VR needs 120FPS. Thereâs no way youâre going to do RT and keep those frame rates. Maybe in a few years, but I definitely wouldnât try it now.
Anything new related to Oculus Quest platform?
In the release notes you can can find this :
Ray Tracing Improvements. We have a number of new improvements to highlight - some are:
- Performance and Stability improvements to reduce technical debt and reduce crashes
- Sampling improvements with Ray Tracer and Path Tracer
- Newly supported geometry types and material types
- Multi-view support for VR and Split-Screen
For me it means RTX gets VR supportâŚ
What are the new codecs that are supported/how are they supported? Is this for use with media player, or sequencer output, or something else?
Render Target Auto Generate Mips is still broken.
Resubmit the bug ?
Nothing related to ARCore updates? Should we just assume this implementation has been abandoned?
Yes, this is written⌠but in VR Preview the editor crashes. I have a RTX 2080 Ti and HTC Vive.
@VGuerreiro Taken from the Trello board -
, so I suppose it will be added at some point, maybe not in the initial review.
Hah! Alright, thank you
Preview 2 Now Available
Fixed in Preview 2
Fixed! UE-70289 Engine/Extras/MayaLiveLink Folder Not Appearing in Installation Directories
Fixed! UE-76220 Specific HLOD exclusion for object does not work without setting âReuse clusters from previous levelâ
Fixed! UE-76949 GetAllMorphTargetNames node does not have spaces in its Display Name
Fixed! UE-74602 AltSkinWeights - Text referencing âLOD Indexâ does not contain a space
Fixed! UE-76578 Error: EditCondition parsing failed: Field name âbBlendTransitionsâ was not found in class âAnimationSharingScalabilityâ when viewing Use Blend Transitions in an Animation Sharing Setup
Fixed! UE-76289 ControlRig - Runtime Debugging
Fixed! UE-76892 Ensure opening an AnimBP using a Control Rig that was previously outputting to a curve - FControlRigIOHelper::GetOutputValue(ControlRig, SourcePath, FControlRigIOTypes::GetTypeString<float>(), Value)
Fixed! UE-75070 Selecting/Clearing an Anim Curve for Control Rig Input/Output doesnât mark the AnimBP as dirty
Fixed! UE-77114 Editor crashed when compiling a control rig blueprint after disconnecting an exectue after adding a draw arc - FControlRigDAG::TopologicalSort()
Fixed! UE-77060 Editor crashed when deleting a skeleton hierarchy in control rig when show bone name is enabled - DispatchCheckVerify<void,<lambda_8d7cdf4015c073c24737a8006ae61556>
Fixed! UE-77150 UE4Game.Target.cs references World Explorers in commented line
Fixed! UE-76884 Editor still running in background after closing it
Fixed! UE-76710 DataPrep - Asset preview not consistent with the scene preview
Fixed! UE-76616 DataPrep - Adding inputs should bring the explorer
Fixed! UE-76301 Dataprep - Inconsistent behavior of the Bounding Volume filter
Fixed! UE-77040 Crash importing through Datasmith when Virtual Production Utilities plugin is enabled - Assertion failed: World [File:âŚ/Engine/Source/Runtime/Engine/Private/Actor.cpp] [Line: 4283]
Fixed! UE-76960 DataPrep - (Deleted Actor) adds up in the scene preview tab on each âexecuteâ
Fixed! UE-75976 Dataprep : Settings panel rework
Fixed! UE-77162 Datasmith ignores scale for tessellation parameter âMaxEdgeLengthâ
Fixed! UE-77029 Importing CAD in datasmith takes an excessive amount of memory
Fixed! UE-75972 Dataprep : misc UI cleanups
Fixed! UE-76707 DataPrep - Bounding volume filters invalidates lightmaps settings
Fixed! UE-77054 DataPrep - editor hangs trying to import a udatasmith with standard material
Fixed! UE-77177 Scale and position wrong after dataprep
Fixed! UE-72011 Crash reimporting scene after setting parent material to an instance (UObject\UObjectGlobals.cpp)
Fixed! UE-77221 Crash undoing dataprep graph node deletion
Fixed! UE-77175 Crash when executing dataprep graph
Fixed! UE-59776 Import CAD - New object in hidden layer not hidden at reimport
Fixed! UE-76013 Datasmith CAD: re-tessellate window issues
Fixed! UE-74222 Cinema4D - invisible layer will import its content
Fixed! UE-72497 Cinema4D - Area lights should be imported as a rect DatasmithAreaLightActorType
Fixed! UE-70405 Visual Dataprep - Set Generate Lightmap UVs to off set lightmap coordinate index to 2
Fixed! UE-76298 Variant created with Datasmith VRed importer cannot be reapplied after reimport
Fixed! UE-77288 Unable to launch onto devices - Failed to launch task!
Fixed! UE-77139 Win32 package executable is not in the root of the package folder
Fixed! UE-76943 Code Project made in a Binary Workspace fails when Live Coding compiling after previously Live Code Compiling: Assertion failed: GIsHotReload
Fixed! UE-76940 Previously Live Coding compiled project plugin modules crash when Live Coding compiling during PIE
Fixed! UE-76993 Live Coding Compiling a package that was previously Live Coding compiled does not make any changes
Fixed! UE-77082 User receives non descriptive error when building in VS is blocked by Live Coding in a project created in a Binary Workspace
Fixed! UE-77195 Using custom build steps causes exception
Fixed! UE-76835 Compiling Child Blueprint and editing child componentâs class value, results in parent componentâs value being changed under certain compile conditions.
Fixed! UE-77106 GitHub 6026 : Add const qualifier to AActor::ActorLineTraceSingle
Fixed! UE-76466 Light Sources contain duplicate LightComponent entries in Details Panels
Fixed! UE-77304 Options missing from instances of Directional Light in Editor
Fixed! UE-74993 Ensure when reloading an Animation Blueprint using Anim Dynamics
Fixed! UE-76994 Crash when saving a blueprint that has a String:String TMap with only the value filled out
Fixed! UE-77067 Child Blueprint Components in World Outliner Hierarchies Have Issues
Fixed! UE-77151 SharedPointer.h assertion when adding a component to a C++ class
Fixed! UE-43969 Inconsistent âSkip Ownerâ Replication Behavior Between Editor and Packaged Game
Fixed! UE-71323 Application hang due to server network loss
Fixed! UE-63984 Instanced and skeletal meshes produce an overlap but fail to compute an MTD
Fixed! UE-68941 Simulated actors with high mass can be pushed with certain characters
Fixed! UE-76579 QueryOnly SkeletalMeshComponent causes collisions
Fixed! UE-75775 Line traces against Geometry collection actors do not register
Fixed! UE-77141 [CrashReport] UE4Editor-PolygonModeling!UFractureMeshCommand::FractureMesh(AActor *,IMeshEditorModeEditingContract &,UEditableMesh *,FTransform const &,int,UMeshFractureSettings const &,FBox const &) [FractureMeshCommand.cpp:365]
Fixed! UE-76740 BPs donât gather on Generate GC asset click.
Fixed! UE-68459 Warning opening QAGame and Template Projects: Console object named âActorComponents.Enableâ already exists but is being registered again
Fixed! UE-76665 Cluster Voronoi Fracture tooltips have typos
Fixed! UE-76975 Cluster Voronoi Fracture does not always fracture an actor with a Sites Per Cluster value between min and max
Fixed! UE-76989 Generate Geometry Collection Asset Button does not appear when a blueprint comprised of nest SM blueprints is the target.
Fixed! UE-76931 Cluster Voronoi Fracture always fractures with the maximum cluster sites value
Fixed! UE-76935 Minimum Sites Per Cluster slider has a higher cap than the Maximum Sites Per Cluster value
Fixed! UE-76011 Texture Fracture is still accessible through the hotkey
Fixed! UE-76587 Recursion crash clustering bones when the child is selected first
Fixed! UE-74909 No scroll bar for Fracture Tools
Fixed! UE-77137 Old Fracture Editor can be accessed via the Mesh Editor plugin, crashes when used
Fixed! UE-75722 Autocluster Crash
Fixed! UE-76094 Dragging the explode slider slowly will get it stuck on 1%
Fixed! UE-77171 Toggling Show Bone Colors does not update level vieport
Fixed! UE-76243 Crash fracturing a geometry collection actor while simulating
Fixed! UE-76655 Bone color z fighting after fracturing multiple geometry collection actors using Brick Voronoi Fracture
Fixed! UE-77259 Sub fracturing GC built from multiple meshes creates incorrect results
Fixed! UE-76342 Asserts on startup of UnrealFrontend.exe - Assertion failed: PlatformInfo [File:<WorkSpace>\Engine\Source\Developer\TargetPlatform\Public\Common/TargetPlatformBase.h] [Line: 132]
Fixed! UE-71896 Warning: Creating Unregistered CVar: r.EarlyZPassMovable
Fixed! UE-70326 SunTemple - specular artifacts appear when observing pedestal of statue up close on newer Apple GPUs
Fixed! UE-69817 iOS fails during build step with OSS Facebook plugin enabled due to spaces in filepath
Fixed! UE-74632 iOS logging dramatically suppressed
Fixed! UE-75945 Support instanced static meshes for Software occlusion culling
Fixed! UE-68884 tvOS/IOS: Fails to Build with dSYM Options Enabled Due to DsymExporter Erroring Out
Fixed! UE-75605 Unreal Deployment Server Launch crashing randomly with the editor open
Fixed! UE-76262 Deployment server crash
Fixed! UE-71933 Crash dragging Cooked Material into Viewport: Assertion failed: (Index >= 0) & (Index < ArrayNum)
Fixed! UE-76766 Field name Error: âAAM_TemporalAAâ when in Engine/Rendering settings page
Fixed! UE-76772 GitHub 5978 : High quality reflection intensity bug.
Fixed! UE-76546 Editor crash when selecting No on Rebuild Modules Window
Fixed! UE-74656 Draw to Render Target Android Regression
Fixed! UE-75924 [CrashReport] UE4Editor-Engine!FMeshDrawSingleShaderBindings::Add(FShaderResourceParameter,FRHIShaderResourceView *) [MeshDrawShaderBindings.h:140]
Fixed! UE-75802 Instances Created From Merge Actor Have Corrupt Lightmaps
Fixed! UE-72123 Assertion failed: !BatchElement.IndexBuffer || (BatchElement.IndexBuffer && BatchElement.IndexBuffer->IsInitialized() && BatchElement.IndexBuffer->IndexBufferRHI)
Fixed! UE-71421 Engine Test: Screenshot âST_DFAOâ test failed, Screenshots were different!
Fixed! UE-77020 Unnecessary texture DDC key change related to Virtual Textures
Fixed! UE-77269 Strip LOD issue with InstancedStaticMesh
Fixed! UE-76709 Manual exposure values have increased a lot, now overly bright
Fixed! UE-76507 Crash rendering sequence with separate process
Fixed! UE-76176 Implement ribbon ârollâ so that we can align trails properly
Fixed! UE-76571 Unable to build Lighting - Warning: Failed to build lighting
Fixed! UE-76453 RDG pooled buffers are not being released.
Fixed! UE-76569 Fix Sequencer trying to save pose all the time
Fixed! UE-76461 Crash using Undo/Redo multiple times on an Additive Layer Track
Fixed! UE-76914 QAGame recorded sequence rotates pawn flat against the floor
Fixed! UE-76941 Editor stuck in loop opening Master Sequence
Fixed! UE-76896 SCurveEditorTree::RefreshTree crash when modifying sequencer bindings
Fixed! UE-77148 A split reversed animation section starts on the first frame of the animation
Fixed! UE-53803 Font Editor texture image displays offset to the bottom right with High DPI enabled
Fixed! UE-76972 Multi-selecting hundreds of actors can take a long time
Fixed! UE-76144 Unable to save an Editor Utility Widget when it is running
Fixed! UE-77064 AssetRegistry Blueprint commands RunAssetsThroughFilter and UseFilterToExcludeAssets do not seem to work.
Fixed! UE-76973 Toggling visibility on layer containing hundreds of actors can take several seconds
Fixed! UE-76977 Creating a new world when existing world has lots of redirectors can take a long time
Fixed! UE-77027 Editor is unresponsive (< 1fps) when selecting the root of a scene containing thousands of actors
Fixed! UE-71890 closing geometry made with pen tool in the new map leads to crash.
Fixed! UE-76666 Crash w/ Assertion failed: ReaderPos + Num <= ReaderSize while opening multiple assets into the Static Mesh Editor - Referencing BufferReader.h Line: 53
Fixed! UE-75969 Crash opening TEST_Reimport static mesh in QAGame: Assertion failed: NumAttributeTypes == 7 [File:/MeshAttributeArray.cpp] [Line: 53]
Fixed! UE-76803 Crash when opening QA-EditorSmoke-P level in QAGame
Fixed! UE-76331 The engine crashes when adding a new brush at newly created level by a specific way.
Fixed! UE-77126 Crash occurs while initially attempting to open a Blank project - Assertion failed: SerializeNum >= 0 [File:/Array.h] [Line: 1082]
Fixed! UE-72745 UnrealMultiUserServer crashes when it is unable to load the ConcertSyncServer module
Fixed! UE-75123 Deleting elements from TMap Struct in actor blueprint editor causes Crash
Fixed! UE-77063 HDRI Backdrop samples is higher than 4k
Fixed! UE-76338 Rich Text block appears to ignore material settings from default setting after style changes are made and ended
Fixed! UE-76064 Details View widget is always displaying Transform category widget (empty)
Fixed! UE-70772 LOD Distance in world composition is not meeting expectation.
Fixed! UE-76791 Crash attempting to load a World Composition Sub Level after deleting the map - Assertion failed: Outer != nullptr [File: /UObjectHash.cpp] [Line: 722]
Fixed! UE-76158 LiveLink Connection drops when the UE Viewport is locked for more than 10 seconds
Fixed! UE-76995 Existing LevelSequence with livelink facial data doesnât work
Fixed! UE-75797 The LiveLink connection drops when saving a livelink preset.
Fixed! UE-76478 Camera Orientation is flipped 90 degrees when the LiveLink connection is established.
Fixed! UE-76680 MayaLiveLinkPlugin is failing to built via Visual Studio
Fixed! UE-77030 LiveLink Basic role canât be used in animation graph
Fixed! UE-76849 Newly made Handheld Blueprint Project notifies that project file is out of date
Fixed! UE-76509 Packaging for Hololens doesnât work in an Installed build
Fixed! UE-77031 Failing to load Windows Mixed Reality Interop Library when launching onto or running a package on Windows
Fixed! UE-77069 UARPlaneGeometry:DebugDraw() - PersistForSeconds and OutlineThickness ignored for BoundaryPolygons
Fixed! UE-73217 Support latest version of OpenVR for SteamVR
Fixed! UE-77190 Crash when launching onto Windows - OpenVR_api_dll
Fixed! UE-75740 Enabling Apex Destructible plugin on HoloLens crashes
Fixed! UE-77261 VRTemplate - Blueprint Error from HoloLens 2 nodes when using non-WMR hmds
Fixed! UE-77001 Cached reflection captures on primitives are not cleared properly when a reflection capture proxy is released.
Fixed! UE-77107 r.DiscardUnusedQuality malfunction when donât have all qualitylevel available in material.
Fixed! UE-77101 GitHub 6021 : Fixed USplineComponent::GetDirectionAtSplineInputKey result for scaled objects
Fixed! UE-72306 Alignment problem in UMG SafeZone
Yeah, thatâs why i posted. It should works but it does not working at all. All i can see it just black screen or ue4 crash reaport window. i want some more options not crash or freeze only =)
Multi-View (ie. VR and Split-screen) support may not make it this release. Denoisers are not currently working with them and if thatâs not done in the next week or so, itâll be pushed to 4.24.
This particular ray tracing feature was always on the cusp of being pushed anyway and the notes originally added for the Preview Release Features was only a draft, meaning that we had not yet finalized a lot of things. Iâm adding a note to the original post now.
Worked fine on p1, dx11
Testing the preview 2 - new blank project. Setting up for Quest. In projectSettings - when I accept the android SDK license it throws an error;
unable to read âŚ/âŚ/âŚ/Engine/Source/ThirdParty/Android/package.xml
This Android directory doesnât exist in 4.23. It does in 4.22
Same error when ticking âenable gradle instead of antââ
I updated my installed plugins via Launcher before switching to Preview 2 but updated the 4.23 plugins ofc but somehow something is messed up because it says the DataSmith Modules etc are built with a different engine version when opening a 4.22 project with enterprise = true?
not sure if this was before the update but last week, the project opened without problem before 4.23 Preview got installed. Anyone else seeing this?Gotta restart later and check again 
Have you installed and set up the Android SDK in previous engine versions?
Yes, all is working fine in 4.22
It seems as if Android defaults to off, so use the dropdown next to 4.23 launch, select âoptionsâ, scroll down to platforms and check Android. It should default to on and will be fixed by next preview!