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Weried Reflection Seams

I am using UE4 4.16, and I am using the forward shading , because I’m developing a VR game.

There are hundreds of sphere reflection caputure in the scene along the road, which was made using Terrain Spline tool.

There are some intersections between the adjacent two probes.

Here are the screenshots:

Albedo:
d6b2527ab9922a3fe6ea9b22b6cc651c3a8ece43.jpeg

Lightmap:
cb6ac0d5e38d07ae562859c1ce423725e2f4389e.jpeg

Reflection:

Final:
8b77ff6e7fb4ad44b30c1e128049e47b8f8e3685.jpeg

You can see that the Albedo and Lightmap are both fine, but you can see seams and weird lighting on the reflection.

I’m sure it the problem of the reflection, not the light or normal.

Anyone knows why?

Solved!
This is a known problem if you use forward rendering, if a material is infected by more than one Reflection Capture, using forward rendering, you will reproduce this problem.

Solution:
Turn on the “High Quality Reflections” of the problematic materials.