Why is glass materials showing up as black rectangle? Can I turn off glass reflections on glass?

Hey all, I know raytracing & Lumen are a little up in the air on 5.3, but it’s my last remaining issue I’m trying to resolve.

Effectivly my glass material will render any glass reflection as black - even if the object is hidden, Is there a way for my glass to just completely ignore other objects with the same glass material?

In ‘Isolation mode’

You can see the glass planes are still visible even when the objects are hidden -

post process wise I’m only using translucency for raytrace, everything else is Lumen (trying to keep it real-time on pixelstreaming servers)-


Hello, you can try using the cvar r.Lumen.Reflections.HardwareRayTracing.Translucent.Refraction.EnableForProject 0 that disables glasses from reflections.

Cheers!