Glass materials go full reflective in Unreal 5.5 Preview (pathtracer)

Development Rendering
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1

Hello!

Note: This pertains to Pathtracer mode only.

I’m currently testing the Unreal Engine 5.5 preview and have noticed that glass materials, which worked well in version 5.4, now appear to be fully reflective. While there is some refraction, it’s barely visible—perhaps only around 5%.

I just wanted to mention this and am looking forward to the production-ready release of 5.5!

Has anyone else encountered this issue? If so, are there any known workarounds?

Pathtracing:

image
image1461×1037 62.2 KB

Lit:

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image1650×1039 64.5 KB

2

that was always the case if you would switch between lit and pathtracing. In pathtracing you have to change the glass materials