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Enlighten UE4 3.12 Documentation
Results will update as you type.
  • Welcome to Enlighten
  • How Enlighten works
  • Install and build
  • Beginner tutorials
    • See what Enlighten can do in Unreal
      • 1: Open the level
      • 2. Run the precompute
      • 3. Turn emissive materials into light sources
      • 4. Add light sources
      • 5. Understand the lighting
      • 6. Lightmaps and light probes
      • 7. Lightmap resolution
      • 8. Light probe resolution
      • 9. Efficient Enlighten lighting
    • Set up Enlighten in Unreal from scratch
  • From static to dynamic lighting
  • How actors interact with Enlighten
  • Lightmap lighting
  • Probe lighting
  • Local reflections
  • Change the lighting resolution
  • World properties
  • Level properties
  • Precompute your level
  • Enlighten light properties
  • Light reflected from the sky
  • Material properties
  • Light volumetric fog
  • Turn off Enlighten updates in game
  • Mesh destruction
  • LOD for lighting
  • Real-world sun/sky intensity
  • Collaborate on a level
  • Reserved texture samplers
  • Visualizations and statistics
  • Debug with Enlighten tools
  • Convert to vanilla UE4
  • Troubleshooting and support
  • Third-party licences
  • Release notes
    Calendars
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2. Run the precompute

    This is the documentation for Enlighten.

    2. Run the precompute

    Dec 22, 2020

    So Enlighten can update lighting in real time, you need to run the Enlighten Precompute to create the Enlighten data for the level. 

     The precompute creates optimized runtime data containing information about static actors in your level (actors in your level that have a fixed shape and position).

    1. From the Build menu, select Enlighten Precompute.

      The Enlighten precompute starts. GeoPrecompMonitor opens, showing the Enlighten precompute progress.

      A notification shows that the Enlighten precompute is running.

      The precompute may take a few minutes the first time you run it. You can still use the editor while the precompute runs. 

    2. When the precompute is finished, click Apply Now, or wait for it to apply automatically.

      The Enlighten precompute requires a valid Enlighten license. If you see an error message about your Enlighten license, notify the person who provided your Enlighten UE4 build.

      Now you've run the Enlighten precompute, the lighting will update instantly when you add or move light sources in the next steps.

    Next

    • 3. Turn emissive materials into light sources
    , multiple selections available,
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