Rhino - Tessellation - 'Crack Free Displacement' not compatible with meshes

Datasmith - Nov 22, 2019

Meshes imported from rhino are not compatible with 'Crack Free Displacement' ...

Validate resource lifetimes in Mesh Draw Commands to help debug dangling pointers.

Rendering - Nov 22, 2019

Mesh draw commands don't hold strong references to resources. When caching mesh draw commands, their lifetimes can match the parent scene proxy, which can be very long. This increases the chance tha ...

ShouldRender() in USceneComponent Doesn't Check Against IsVisibleInEditor()

Rendering - Nov 22, 2019

IsVisible()/IsVisibleInEditor() should be a contribute to the logic in ShouldRender(). NOTE: This code was written during the UE3 life cycle. Found in 4.22 CL#7053642 ...

Screen Aligned(Velocity) particles deform at low velocity

Rendering - Cascade - Nov 22, 2019

Screen aligned particles with very low velocity will squash in 4.23+ (No squashing in 4.22) Confirmed in 4.25 MAIN at CL 10333042 ...

WMR crash while switching between window and fullscreen mode

XR - Nov 22, 2019

Crash in MixedRealityInteropDebug.dll!WindowsMixedReality::MixedRealityInterop::BlockUntilNextFrame() check_hresult(WINRT_SHIM(Windows::Graphics::Holographic::IHolographicSpace2)->WaitForNextFrame ...

Vulkan leaks memory when opening and closing windows

Rendering - Nov 22, 2019

As described here: https://udn.unrealengine.com/questions/532725/index.html (1) Start Prebuilt Vanilla 4.23.1. with Vulkan enabled (2) Create a new project (3) Drag and drop the Sphere from “modes ...

Opening a new sequence can have SavePreAnimatedState and RestorePreAnimatedState called out of order

Sequencer - Nov 21, 2019

When switching to a sequence where the current time is not in the target view range the PreAnimatedState of the new sequence will be saved before restoring the PreAnimatedState of the old sequence.  ...

3D Text - Contextual Analysis - Arabic

Virtual Production - Nov 21, 2019

New Text 3D plugin does not process contextual analysis for Arabic Expected: Arabic characters should change shape based on the placement of a letter in a word (similar to how in English, a letter c ...

Point Cloud support for AR plugin crash

XR - Nov 21, 2019

Enabling Point Cloud support for AR plugin causes engine crash. Also crashes with LIDAR plugin enabled. Confirmed in MAIN 4.25 @ CL 10333042 ...