ENGINE_API missing from GeomSweepMulti and GeomOverlapMulti templates

Physics - Feb 25, 2019

GeomSweepMulti and GeomOverlapMulti are not being exported, as the template specializations are declared outside of the physics interface class without ENGINE_API. ...

Rotating constraints in PhAT rotates both reference frames

Physics - Feb 20, 2019

Rotating constraints in PhAT rotates both reference frames. This behavior was previously enabled by holding ALT while rotating, as indicated by an on screen message in PhAT, but has now become the d ...

FPhysicsInterface_PhysX::Sweep_Geom calculates incorrect shape transform

Physics - Feb 19, 2019

FPhysicsInterface_PhysX::Sweep_Geom incorrectly calculates the shapes' world transforms, while an alternate approach in FPhysicsInterface_PhysX::LineTrace_Geom works correctly. ...

Shaped Trace by channel traces do not return true when the starting and ending point are the same

Physics - Feb 18, 2019

When a shaped trace by channel has a starting and ending point that is the same, it no longer returns true when overlapping an object. Regression: Yes This appears to work as expected in 4.21.2 bi ...

PhysicsConstraint is not properly updated with world origin shifting

Physics - Feb 15, 2019

When world origin shifting occurs, or any movement of the constraint component itself, the underlying physx constraint is not properly updated, leading to incorrect results. ...

Bones with physics enabled stretch when moving over the Actor set in the TickGroup after PrePyhsics

Physics - Feb 14, 2019

When moves over the Actor set after PrePhysics( e.g. DuringPhysics ), the bone with the physics enabled will stretch. Instead of directly using PhysicsAsset, using RigidBody nodes does not cause th ...

When welding collision between Third Person UE4 Mannequin's left foot ball, to left foot in physics tab results in an Engine crash.

Physics - Jan 30, 2019

When using a Third Person UE4 Mannequin, Opening the Physics asset tab, and welding the collision between left foot ball, to left foot results in an Engine crash. Additional Note: Using the same ...

Wheeled vehicle movement is jittery on clients

Physics - Jan 29, 2019

Vehicle movement is jittery on clients. This is most apparent when turning while driving. This was also tested in a packaged game with local multiplayer setup. Regression?: Yes This does not occur ...

Collision problem in nativized blueprint

Physics - Jan 29, 2019

Issue reported by one of our licensee on the Japanese UDN https://udn.unrealengine.com/questions/480660/view.html ...

Sphere traces where Start and End locations are the same are not triggering any hits

Physics - Jan 17, 2019

This has changed since 4.21, AOE attacks are not being registered. Paulo S took a look and determined that this is an engine bug: Happens with any radius based attack. What I found is that any Sphe ...