Unreal Engine 4.14 - Advanced integration

Requirements

  • UE4 Version: 4.14
  • Simplygon API Version: 8.1
  • Simplygon Grid Version : 8.1
  • SPL Version: 8.0
  • SSF Version : 2.0
  • Visual Studio : 2015
  • OS : Windows 10

Bug fixes

  • Deleting stand-in actor from outliner did not delete unsaved textures and materials from the package.
  • Right clicking on an empty stand-in actor in stand-ins outliner caused a crash.
  • Fixed issue with material slots for skeletal meshes.
  • Fixed flatten material serialization bug. Due to changes introduces in 4.14 the flatten material serialization was not serializing texture data to disk. The fix should fix the serialization issue.
  • Flatten material cache key has changed. Mainly how to identify static mesh uniquely. Using asset path instead of lighting Guid.
  • Fix a bug where the UV generation tool in StaticMeshEditor was crashing.
  • Fixed null pointer issue with MeshMergeData.

Major Changes

  • Deprecated id GUID from UStaticMesh.

    Warning

    IMPORTANT: If you are upgrading to 4.14 and have been using the integration in 4.12 or 4.13 you need to run resavepackages command using these flags: -IgnoreVerCheck -IgnoreChangelist

    Here is an example:
    UE4Editor.exe ProjectName.uproject -run=resavepackages -IgnoreVerCheck -IgnoreChangelist

  • Cleanup dependencies to SimplygonMaterialsUtils in Persona.

  • Clean up method in material utilities that are not used by us anymore.
  • Refactor Replacement Volume module.
  • Deprecate and fix up UEditorPerProjectUserSettingsto match 4.14 standard. -Vertex Weights for influencing the reducer are now stored in alpha instead of red and green channel.

New feature and improvements

  • Stand-In Actor. A complimentary system to Replacement volumes.
    • You can use the Stand-In's outliner to create new Stand-in's (Currently uses Remeshing).
    • Utilizes distributed system.
    • Convert Existing volumes to Stand-in Actos.
  • World Composition can now utilize Simplygon Swarm thus allowing you to distribute Level LODs on to multiple machines.
    • Enabled by default. To revert to stock Level LOD Generation disable swarm experimental feature.
    • If Level has ALODActors those can be used instead of static meshes thus allowing speed up in Leve LOD generat.
  • Replacement Volumes now utilize the distributed system.

Experimental

  • SSF Scene Importer plugin.

Bug fixes

  • UE SSF Importer Failing to maintain object's pivot point.
  • Update SPL static libs and fix clipping geometry issue where clipping Geometry was not taken into account when using SimplygonSwarm.
  • Baking vertex data in HLOD with multiple meshes.
  • Add support to preserve original section count for skeletal meshes.
  • Fixed issue with flatten material caching to include vertex color hashes in key to beter detect key changes.
  • Flatten material entries in DDC are marked as transient.

Known issues

  • Stand-In Actor material cleanup.