Lumen flickering reflection

Hello everybody. I followed all the possible tutorials to configure Lumen correctly but I can’t fix the flickering reflection. I have my Unreal engine in Epic and the ray tracing does not change anything. My light source is an emssive light

Use actor lightsources

Actor lightsouces is Point/spot/… light ?

Yes

Ok, I wanted to know if it was possible to only do it with an emissive light but I’ll do it like that! Thanks !

You can’t really expect good results from emissive lighting unless the emissive surface is huge (like 2x2 meters). Even then you’ll get noisy reflections.

If you think this is bad, set the GI scalability to high and see what the scene looks like.

tl;dr do not rely on emissives to light your scene.

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Ok I see, thank you very much for taking the time to explain to me!

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