Pixel artifacts on model in 3D - Gets more prevalent the lower the resolution about godot HOT 5 OPEN

Let's keep this open so we can document this solution

from godot.

Thank you both for the valuable info and resources, I tried it out and it fixed the problem!

from godot.

Have you got enough border area around each UV island? Typically you would use an automated dilate to duplicate edge texels around UV islands, but for drawn stuff, you can draw in the borders manually.

You need some kind of dilation to account for texture filtering, mipmapping, and filtering accuracy error.

Here's an example dilated texture:

Also I would double check there is no transparency selected for the material, it will run faster if opaque.

EDIT: Looks like photopea.com can do this. Just choose filter/3d/texture_dilation.

from godot.

Have you got enough border area around each UV island

Yep, confirmed it looking at their MRP

See that one pixel border, not enough. The moment mipmaps are generated, it's leaking into the rest of the image.

If I flood fill the transparent area blue, you can see a blue outline around the face

from godot.

Dilated texture seems to fix it for me:

Here is more info on edge padding:
http://wiki.polycount.com/wiki/Edge_padding

from godot.