I’m working on a product video render of a lounger using Unreal Engine. I’m quite happy with the overall look, but I’m encountering an issue with flickering in the reflective materials.
You can see it especially on the pool ladder, and to some extent on the marble reflections as well.
Here’s the video for reference:
Can be seen especially on the pool ladder, but also on the marble reflections
Has anyone experienced something similar? Do you have any idea what might be causing it or what parameters I should change to fix the problem without overdoing the rendering time?
Any help or suggestions would be greatly appreciated!
Checking through the community, this is a recurrent problem. Flickering issues are usually related to the lighting setup, especially in combination with emissive materials, or working with Lumen and RTS at the same time. Play around with the brightness, emissive, and exposure levels, as well as making sure that your scene has either Lumen or RTX, not both.
As well, similr scenarios were encountered in the following threads, please check the solutions implemented on them:
I checked the links you shared, but unfortunately I couldn’t find a solution that fully worked for my case.
That said, I did manage to reduce the flickering quite a bit by changing the anti-aliasing method to TAA. I was able to keep the spatial samples at 3 and temporal samples at 1, which helps with render times. Increasing those values didn’t really improve the flickering further, it just made the rendering slower.
The flickering is much less noticeable now, especially on the pool ladder, which was one of the worst spots before.
However, switching to TAA introduced a new issue: a noticeable drop in anti-aliasing quality, especially around the edges of the geometry. You can see that in the attached screenshot.
If you (or anyone else) has suggestions on how to balance TAA settings or improve edge clarity without reintroducing the flickering, I’d love to hear them!
