Description

A user encountered an issue with Landscapes not rendering once baked with GPU Lightmass. The user was using Ray Tracing. If using normal CPU Lightmass baking, landscape remains the same.

Steps to Reproduce
  1. Create a Third Person Template project with Ray Tracing enabled
  2. Enable Ray Traced Shadows in the Project settings
  3. Enable Virtual Texture Support and Virtual Texture Lightmaps
  4. Enable Ray Tracing Global Illumination (RTGI)
  5. Enable GPU Lightmass Plugin
  6. Create an Empty Level
  7. Add a landscape and sculpt it to look like a mountain range
  8. Add a Directional Light, SkyAtmosphere, SkyLight and Exponential Height Fog
  9. Change the SkyLight and Directional Light to static mobility
  10. Enable Ray Traced Shadows on both the SkyLight and Directional Light
  11. Add a Lightmass Importance Volume around the entire landscape
  12. Add a PostProcessVolume and enable the following:
    • Infinite Extent (Unbound)
    • Exposure - Manual
    • Exposure Compensation - 9.88

Result: Landscape renders all black once bake has completed
Expected: Landscape remains properly lit once bake has completed

Have Comments or More Details?

There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-199910 in the post.

3
Login to Vote

Fixed
ComponentUE - Graphics Features
Affects Versions5.3.2
Target Fix5.4
Fix Commit29945068
Main Commit29945091
CreatedNov 7, 2023
ResolvedNov 27, 2023
UpdatedDec 19, 2023