Problem with foliage shimmering

Ponyo Wants Ham
Mon, 01 Nov 2021 02:24:48 +0000
Rendering

Hey everyone, I’ve been having a problem with painting foliage trees. My map is fairly large, with thousands of low poly trees, and most display properly, but maybe around 10% of them are sort of “shimmering” (see gif below).

If I delete one of the trees that is shimmering, then suddenly one of the other nearby normal looking trees becomes a problem and begins to shimmer.

Several months ago I had this problem and I thought it might be a problem where two identical trees were being placed right on top of one another. Back then it seemed like if I just deleted the offending tree and placed a single tree roughly in the same spot, the problem was solved. But now that process doesn’t fix the problem.

Any idea what might be causing this, or how I might be able to fix it?

Thanks very much for any insight you can provide!

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