Mesh Terrain doesn't work with software lumen

Summary

Even after building mesh partition the mesh terrain doesn’t work and won’t appear in software lumen overview mode

it works ok with hardware lumen.

What Type of Bug are you experiencing?

Rendering (Graphics / Niagara)

Steps to Reproduce

  • Have software lumen
  • Create the mesh terrain
  • (optional) even use the Build → Build Mesh Partition
  • Check lumen overview mode
  • Terrain mesh doesnt produce bounce lighting and isn’t present in lumen overview

Expected Result

The Mesh terrain should work with software lumen

Observed Result

Mesh Terrain doesn’t work with software lumen at all.

Affects Versions

5.8

Platform(s)

Windows

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1 Like

In your MeshPartitionDefinition data asset assigned to your MeshPartition actor, do you have a FarField transformer set up?

Hi, I’m running into the same issue. I do have a FarField transformer in my transformer pipeline. Should it be at any specific index, or before/after any other transformers? Are there any other requirements for the FarField transformer to work? (I assume it generates the SDF)

Update: When I open the mesh assigned to the respective compiler section in the static mesh preview, I can see that it has no distance field (visualize distance field shows nothing). Manually generating the distance field from build settings seems to fix the issue for that, but only for that section and that build, so it’s hardly a workaround.