[Solved] Black outline artifact only at LOD 0 on MetaHuman eyes (Use Animated Maps)

Hi everyone,

I encountered a specific issue where a strange black outline/ring appears around MetaHuman eyes, but only at LOD 0. When the character switches to LOD 1 or higher, the line disappears, but at LOD 0, the artifact is very noticeable when “Use Animated Maps” is enabled.

I found that this is caused by the offset value in the shader calculation. Here is how to fix it while keeping the animated features:

The Solution:

  1. Open the Eye Master Material.
  2. Find the Add node connected to the output of “Basecolor Animated Delta”.
  3. The default value is -0.5. Change this to -0.3.

This adjustment eliminates the black artifact specifically seen at LOD 0 and ensures a clean look for high-quality close-ups without losing the blood flow animations.

(Attach your images here: Before/After at LOD 0, and the Material Graph screenshot)

Hope this helps anyone working on high-fidelity cinematics!