Is this normal that an emissive material is flickering a lot? especially when camera move? I find it visually unattractive for the player.
Hey @moregambler!
If you don’t mind, I’m going to ask for a little more information:
Are you using Lumen?
Have you tried setting the scalability to high and EPIC levels?
Get back to us soon and let’s get this figured out!
Thank you for responding so quickly. In this project, I’m not using Lumen, but Screen Space (Beta). Changing the settings to Epic improves the visual result a bit but not the flickering. I’ve noticed that when the object is not in the visible field, the engine stops rendering the reflected light. Maybe something in the geometry of the source static mesh or its UV mapping causes this… I put a sphere next to it to test and it seems like it doesn’t flicker.
Hi there @moregambler,
This topic has been moved from International to Rendering.
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Thanks and happy developing! 
Hey @moregambler! Sorry for the late reply!
Yeah, I agree with you. I think it’s going to be something related to the UV’s. To be honest I think the geometry looks fine… Do you think you could throw that material over the entire object and see if it still flickers? That might give you an idea of what’s going on. I think the camera moving away and hiding the box itself is likely due to Occlusion, it stops render because it’s not visible. But that doesn’t solve the flickering while it’s ON screen.