Is this 'graphics bug' normal? (Grid dot pattern, hair, foliage)

[funkexmix]

Hi all,

Is this 'graphics bug' normal? Only thing that help is antialiasing of the heavy kind like TAA and such. FXAA does not help. Foliage, hair, beard, eyelashes, eyebrows all have a ugly grid dot patterns. I have seen this in reflective surfaces in Doom, hair in the latest Wolfenstein. Do you have the same issue? Is this normal? Seems to affect all graphics with transparency.

Fullscreen Google Drive Image:
Hair and foliage
https://lh4.googleusercontent.com/BJ2EFoz0wxLvQ7HPSn1EZASByo7dF-Jd2CsvI8VGb5eElgBJC5lAGZSmmN0LeyKlpONTEEc7UEi78Q=w1920-h921

Hair and dots in shadows:
https://lh4.googleusercontent.com/MwTeaMBB5-NI2buI3uW6LVxZ18i4BSWj2yMZby43lldYGMTQkTv-93sum3Ogh2tuNCiPnSm0IWMYB5pFSw7a=w1920-h921

You can't really see the issue well in this inline image, please you above links.

 

[funkexmix]

Someone answered in Reddit. Clear answer:

'irabonus

The technique is called Screen-Door Transparency and it is commonly used because actual transparent surfaces pose a bunch of issues during rendering. For example, you'd have to sort every surface by their depth back to front and render them in that order. Additionally, deferred shading by default only handles opaque surfaces.

Screen-Door transparency lets you get the illusion of transparency while every individual pixel is still opaque. Of course, it leads to artifacts like the ones in your screenshots so it's generally only used on small objects like hair or foliage. TAA helps, because you can vary the pattern over time and TAA will average out the non-opaque/opaque values.'