On the characters’ faces and clothes in engine version 5.6 there are such artifacts. Lumen is on. How can I fix it?
Hello there @Inngvarr!
Checking around the community, there have been a few cases of this problem, strange spots popping around Metahuman textures. From what I could find, seems to be tied to substrate materials.
As a first test, go to Project Settings > Rendering and check if “Substrate Materials (beta)” is enabled. If so, disable it, restart UE, and allow shaders to fully recompile. If the issue persists, turn it back, and repeat the process.
If the issue persists, you can try clearing the shader cache, via deleting folder “DerivedDataCache” from your project directorty, then allow the project to recompile. Additionally, please test disabling all Metahuman plugins, then re-enable the creator only, followed by its dependencies in another restart.
As for Lumen, I would test disabling ray tracing, using console command “r.Lumen.HardwareRayTracing 0”, to check if the spots dissapear.
Disabling Lumen solves the problem. But I need Lumen. I also noticed that artifacts appear on other surfaces. Some walls look unnaturally overexposed and have incorrect glare and reflections. I’ll try your method and write back. Thanks
Substrate Materials (beta) was already disabled. Metahman plugins were disabled, but it does not solve the problem.
I found a solution to the problem. Need to go to the project folder:
Config/DefaultEngine.ini.
Find the lines there:
BlueNoiseScalarTextureName=/Engine/EngineMaterials/STBlueNoise_scalar_128x128x64.STBlueNoise_scalar_128x128x64
BlueNoiseVec2TextureName=/Engine/EngineMaterials/STBlueNoise_vec2_128x128x64.STBlueNoise_vec2_128x128x64
Delete them or comment them out.
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