Hi,

Note, Anti-Aliasing and Motion Blur options can be overwritten by Post Process volumes. So, do you have a post-process volume in the level? If not add one to the scene and go through the settings: Search for “motion blur” check its box for the amount and set it to “0” and then do a search for Anti-Aliasing Method (or AA Method) check its box and set its value to None.

From the video, it looks like the Anti Aliasing is having a problem with the foliage's material rather than the falling leaves. Do you experience similar ghosting when you move a simple cube over the foliage instead of the falling leaves?

Warmest regards,

I did check the motion blue value on PostProcessVolume on this map and it is already set to '0' and could not find Anti-Aliasing Method (AA Method) on it.

And, yes a simple cube also makes trail behind when I move it in front of foliage.

Is there anything I could adjust so I can fix this issue?

Thank you.

Hi,

Sorry, PostProcessVolume no longer has Anti-Aliasing settings, it used to have them in Unreal 4.

When changing Anti-Aliasing method, make sure you are changing it for Default Settings:

Mobile settings only apply to mobile phones...

Since you have the same issue with the cube, It is very likely that the only reason you have this ghosting is the TAA Anti-Aliasing. And foliage being nanite has no effect on this.

You could switch to MSAA or use DLSS: https://aximmetry.com/learn/virtual-production-workflow/preparation-of-the-production-environment-phase-i/obtaining-graphics-and-virtual-assets/creating-content/creating-content-for-aximmetry-de/ue5-how-to-install-third-party-code-plugins-for-unreal-editor-for-aximmetry/#nvidia-dlss

Also, rendering at a higher resolution should help.

If you are sticking to TAA, then there are several console variables that could fine-tune TAA to work better with the foliage, for example like:
r.TemporalAACurrentFrameWeight
r.TemporalAASamples
r.Tonemapper.Sharpen
However, these variables probably will never solve your issue. As your leaves are just falling too close to your camera and that means a very high-speed movement across the rendered resolution.

Warmest regards,

Thank you for your reply.

It became a lot better look after I applied DLSS plugin turned on.

I will try to work on it and add comments about it later!

Thank you.