Unreal Particles FX mixed with AR camera don't look good

 

Hi, I know that AR camera is special but I would like to show you a video

where you can see the particles well when they have a solid background behind

but when they are in front of a video input, they almost dissappear

https://vimeo.com/manage/videos/1062490195

Is there any solution or any setting that could fix this issue?

I'm doing my tests with 2024.2.0 version

   Sergio Gómez

 
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Eifert@Aximmetry
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Hi,

The issue you're experiencing is likely due to the particles using additive materials. When there's nothing behind them in Unreal, they have nothing to blend with.
There are a couple of ways to address this. One effective solution is to change the particle's material from additive blending to AlphaComposite blending. This change will enable the particles to blend, even in the absence of a background. More information on this can be found here: https://my.aximmetry.com/post/3818-aximmetry-ar-dmx-lighting-noise

Alternatively, you could place a dummy object behind your particle system in Unreal that uses an AlphaComposite material. This will provide a surface for the additive materials to render their colors onto.

Warmest regards,

 
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Sergio Gómez
  -  

Thanks Eifert, I used an almost transparent dummy object to blend with and it worked.

Best regards,

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