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This release adds a few key features:

• Enlighten can now be used with In the editor, the Enlighten Build menu now provides the option to include Loaded Actors or Selected Actors. To include the entire world, use the precompute commandlet.
• Support for the Loose Hierarchical Grid partition type.
• World Partition HLOD actors are now always lit by sky lighting.
• Support for Level Instances with streaming mode Embedded. Other streaming modes are not yet supported.
• Runtime Data Layers are automatically excluded from the Enlighten radiosity computation. Static mesh actors in a runtime data layer will not receive indirect lighting unless they have Mobility set to Movable.
• Use World Settings > Enlighten Settings > Default Quality and World Settings > Enlighten Settings > Adaptive Probe Resolution to control the lighting resolution of actors which are set to Use Default.
• The Enlighten Level Stats window now shows Enlighten data statistics broken down by world partition cell.

• To convert a level to use World Partition, use the WorldPartitionConvert commandlet with the argument -RemoveEnlightenLevelProperties. 

  Note
  When you convert a level to use World Partition, any existing Enlighten level properties are lost.

  
  

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The GeoRadiosity process no longer consumes CPU and GPU resources when its window is minimized.

Fixed bugs

• Fixed an intermittent GeoPrecomp2 process hang during the precompute on some machines.
• Fixed rare black probe lighting artifacts that could occur close to thin walls that separate disconnected areas.
• Fixed failure to fall back to sky lighting in game mode when both persistent level and first loaded sub level have no Enlighten data.
• Fixed failure to fall back to sky lighting in game mode for actors spawned by a blueprint.
• Fixed failure to fall back to sky lighting in game mode when Enlighten Bounce Distance is non-zero.

• When the density of Enlighten probes is too high, the precompute now reports the correct location of the highest density.

• Fixed a crash after reimporting a static mesh asset that is open in the Static Mesh editor with Enlighten Charts view enabled.
• Fixed invalid lighting for foliage with detail lighting mode on platforms with manual vertex fetch disabled.

• Status
  subtle true colour Green title 4.03.P1

   Fixed Enlighten System Container actors being marked modified when actors are unloaded in World Partition mode.

• Status
  subtle true colour Green title 4.03.P1

   When World Partition is enabled, the warning "<cell name> has bounds which overlap more than <N> other levels" is no longer reported.

• Status
  subtle true colour Green title 4.03.P1

   Fixed missing indirect lighting for some actors when World Partition is enabled and only part of the world is loaded in the editor.

• Status
  subtle true colour Green title 4.03.P1

   Fixed missing automatically placed probes for a large Enlighten Adaptive Probe Volume actor when World Partition is enabled.

• Status
  subtle true colour Green title 4.03.P1

   Fixed a crash after running a World Partition build while also running an Enlighten precompute.

• Status
  subtle true colour Green title 4.03.P1

   Fixed "Multiple targets" warnings related to foliage with Detail lighting mode when World Partition is enabled.

• Status
  subtle true colour Green title 4.03.P1

   Fixed warnings about excessive lighting resolution that refer to a non-existent level package when World Partition is enabled.

Known Issues

The Rect Light actor is not supported on mobile platforms.

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Enlighten view modes are not available when Nanite rendering is enabled. To use Enlighten view modes, temporarily disable Nanite with the following console command

r.Nanite 0

Partial loading of level instances is not supported. To work around this, set wp.Editor.DisableLevelInstanceEditorPartialLoading=1 in DefaultEditor.ini.To enable Enlighten reflections with the mobile forward shading renderer, set r.Mobile.Forward.EnableClusteredReflections=1 in DefaultEngine.ini.

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