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IRC log for #minetest-dev, 2020-11-24

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All times shown according to UTC.

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06:00 MTDiscord <f​atalerror420 (seared)> so
06:00 MTDiscord <f​atalerror420 (seared)> oh wrong chat
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18:56 lhofhansl I'll close #10637 for now. Mapgen is too fickle by itself (see last comment about how just looking at the same scene from the different position renders the lighting/shadow differently).
18:56 ShadowBot https://github.com/minetest/minetest/issues/10637 -- Avoid generating the same chunk more than once with multiple emerge threads by lhofhansl
19:06 Krock looks like an execution order issue
19:06 Krock just re-trigger light calculations for the bottom mapblock once the upper is done
19:09 lhofhansl I've since also seen the tree (you see on the left in the screenshots) chopped off in the multithreaded case. There's something I am missing. I'll look some more.
19:25 sfan5 well yeah there's some general multithread issues remaining
19:26 Krock I've also seen mapblocks generate twice if there are schematics overlapping the borders
19:26 Krock not sure about the condition, but they surely generated twice. that's probably what you're fixing there
19:28 lhofhansl Yeah, there's some on block (or chunk?) boundaries that I do not understand. I also do not understand how generate the same chunk with the same block again fixes it.
19:30 lhofhansl Added a screenshot of the other problem to the PR.
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21:50 lhofhansl Krock: How can I test the schematics case you mentioned? Perhaps that will lead me to a solution.
21:51 sfan5 have schematics span a mapchunk border
21:51 lhofhansl All, please have a quick lock at #10667. It brings back some (not all) of the extra block "pre-rendering" in order to avoid glitches with camera panning.
21:51 ShadowBot https://github.com/minetest/minetest/issues/10667 -- Fix camera panning glitches (partially revert 10489.) by lhofhansl
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