Shadow Artifacts On Large Meshes

Summary

Our game uses large meshes for it’s terrain, and recently (sometime this week) it started having strange shadow artifacts on mid-to-high graphics settings.

This is happening in both studio and production environments. You can see it happening in a production environment here.

It happens in both Shadowmap and Future lighting modes. I have also attached a private repro file for staff.

System Information

  • OS: Windows 11 Pro
  • CPU: Intel Core i7-12700K
  • GPU: RTX 3070 Ti
  • Memory: 48GB

A private message is associated with this bug report

4 Likes

Coming back to update this- turns out it has to do with RenderFidelity, we have it set to Automatic which seems to be defaulting to Performance

When we set the RenderFidelity to Precise, the issue is resolved. Leaving this ticket open since I believe this is still unexpected behavior.

1 Like

I was going to say set the Fidelity to Precise. Glad you solved the problem.

Are you sure your Studio settings are set up correctly? About a year back I personally ran into a similar issue with really poor mesh geometry rendering because I ‘increased’ my mesh rendering level; the setting actually appears to be an inverse where the lower levels are more accurate; setting back to ‘DistanceBased’ fixed it for me.

This started happening not only in studio, but also in production and not just for me but for players, friends, and the other developer on the project, so I don’t think it was a local setting change.

Thanks for the extra information though! Hopefully that can be helpful someone else looking this up in the future.

Thanks for the report. We’ll follow up when we have an update for you.

I’m having similar issues with absurdly large shadow artifacts on meshes, changing the collision fidelity seems to fix it - but I’d rather not have meshs that aren’t boxes have box shaped collisions.