Faces are inverting?

this here is a curtain mesh i imported into sims 4 as a mod… for some reason, specks of light that are hitting the curtain from the other side are shining through on the inner side, and vise versa…
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its almost like the faces on the outer side (the side facing the light) are for some reason showing through to the inner side (the sides away from the light); and the opposite is true too.

the mesh is 3d. its not a plane. i can only figure this is happening because the faces are very close to each other, but still, there is a distance between them.

Oh i see, so its a clipping of some sort? never would have guessed, because it doesnt flicker when i move my screen. either way, is there an easy fix for this? it mentions “z-buffer precision”, but idk how to apply this, or if it can be applied to such a thing.

Sorry, I somehow missed the reply notification. I would think that this is a question better addressed to the game engine in question. They all have limits on what they can handle.

I can only suggest maybe making the cloth a bit thicker, even if it’s not “realistic”. If I remember “Sims” is rather schematic looking game anyway.

its fine. i guess ill just have to try and thicken them, though i hope its not too awkward to do.