black line at tile border render problem #228
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Tobias' LineMapper improvement committed in December 2024 and January 2025 might have introduced a problem where we get black lines at tile edges under certain circumstances. My initial commit here is just a test case that quickly demonstrates the problem with some multi-SEM data I was working with earlier this week. My hope is that Tobias will be able to take a look and figure out what actually needs to be fixed.
Here is what the problem looks like: