Unreal Engine Issues

Code review for potential fix for crash where Velocity contains NaN

User crashed in the function "void UCharacterMovementComponent::PerformMovement(float DeltaSeconds)" due to a Velocity containing NaN. AnswerHub post details function calls that lead to where the N ...

Investigate/fix navmesh tiles disappearing randomly when level stream in.

See UDN description: https://udn.unrealengine.com/questions/554749/bug-navmesh-streaming-and-tile-corruption.html ...

r.Tonemapper.Sharpen > 0 produces translucent artefacts on SceneCaptureComponentCube

Differences in DistanceToNearestSurface and DistanceFieldGradient results between 4.27 and 5.0

In the UE5 case, we end up seeing very harsh lines in both the gradient and the distance to nearest surface examples whereas the results in 4.27 appear smooth.  It was also interesting to observe c ...

Shadow doesn't update for a moving nanite mesh (fixed in 5.4)

When a nanite mesh moves, the shadow does not. ...

Fix sampling frame rate not properly setup for dynamic montages

Morph target normals not correctly applied when imported as LOD 0

This is a regression since 5.5 with skeletal meshes where morph target normal/tangent deformation only works when a mesh is imported as a LOD of an existing skeletal mesh, but not when imported as L ...

Project cannot build in VS 2017 15.8+ if it uses std::make_shared with an over-aligned type

Visual Studio 2017 15.8 includes a fix to properly handle std::make_shared used with over-aligned types. However, this is a breaking fix and requires the definition of one of two macros to either ac ...

Crash when casting to owner from AnimGraph

Crash occurs when casting back to the pawn owner from the Anim Graph. In this case, it is being used for "Copy Pose from Mesh" Workaround: Cast to Owner from Event Graph, defining variable as the ...

ApplyLocalExposure uses Output_ExtentInverse instead of Output_ViewportSizeInverse for bilateral grid UV

The ApplyLocalExposureCS shader in PostProcessLocalExposure.usf computes UV coordinates for the LumBilateralGrid 3D texture using Output_ExtentInverse (1/RenderTargetSize) instead of Output_Viewport ...