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Downloaded world rendered, nothing to see #2038

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lajawi opened this issue May 13, 2022 · 18 comments
Open

Downloaded world rendered, nothing to see #2038

lajawi opened this issue May 13, 2022 · 18 comments

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@lajawi
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lajawi commented May 13, 2022

I downloaded a world, unzipped it, and then tried rendering it but nothing shows up if I open index.html, as seen below.
Image
I am running version 0.17.47 (7171af5), built on Tue Dec 09:17:20 2021.

@vilhok
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vilhok commented May 15, 2022

So what does the directory structure look like? Do you have the directory called overworld or whatever you named your map in your config file? What I wonder is that did the map render at all? What browser are you using to view this?

@CounterPillow
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it's probably an issue with the chunk states, I need to look into this if I ever work on overviewer again

@lajawi
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lajawi commented May 16, 2022

So what does the directory structure look like? Do you have the directory called overworld or whatever you named your map in your config file? What I wonder is that did the map render at all? What browser are you using to view this?

It’s just like you’d expect. The root folder has the different files, one of which is index.html, as well as another folder with all kinds of different images (in my case a black) in different folders with names like 1, 2, 3, & 4.

@1nhu
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1nhu commented May 21, 2022

So what does the directory structure look like? Do you have the directory called overworld or whatever you named your map in your config file? What I wonder is that did the map render at all? What browser are you using to view this?

It’s just like you’d expect. The root folder has the different files, one of which is index.html, as well as another folder with all kinds of different images (in my case a black) in different folders with names like 1, 2, 3, & 4.

so I do not really see a fix in here... is there a fix even?
image

@HiltonWS
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HiltonWS commented Jun 6, 2022

@1nhu What is the Minecraft version?

@CounterPillow
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If you're running 17.47 and this is a 1.18 world then this is likely because the blocks were placed and the lowest point of the world, and your Overviewer version does not support rendering the new depths.

Can't really tell without a link to the world.

@1nhu
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1nhu commented Jun 7, 2022 via email

@CounterPillow
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I fixed the builders, try with Overviewer v0.17.63

@1nhu
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1nhu commented Jun 10, 2022 via email

@Hraefin
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Hraefin commented Jun 10, 2022

Hate to ask, but did you try clearing cache on browser? restart browser?

I have had that happen with Chrome just not behaving.

@1nhu
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1nhu commented Jun 11, 2022 via email

@CounterPillow
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CounterPillow commented Jun 11, 2022

then please zip up the world and upload it as a sample, or otherwise provide us with a download link

@1nhu
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1nhu commented Jun 13, 2022

Yeah, tried the newest version, still nothing, blackness. My zip is 1447mb, where should I upload it, If I should

@CounterPillow
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upload it here: https://overviewer.org/uploader/

@cliffmeyers
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I'm seeing similar behavior with many blank tiles after applying 4e51b21 and running against a subset of my world. see additional discussion in #2010 (comment)

I extracted a region of my world that had not been visited since we upgraded to 1.18+ (currently on 1.18.1 and I run every upgrade with the --forceUpgrade flag). I have uploaded the world files as test-upload.zip via the uploader tool.

Here is the region in MCA Selector, note that some chunks of the region have never been visited and haven't generated.

MCA_Selector_jf4VNEMCuY

Prior to applying 4e51b21, it would actually throw an exception when trying to render a chunk that hadn't been generated. Eventually the entire render process would completely hang and do nothing after a few hours. I scrolled back and counted 15 exceptions which is equal to the value of processes from my config.py, so I'm assuming each exception was causing each thread/process to hang until the pool was exhausted.

This no longer happens after applying 4e51b21 but I think rather than an exception killing the thread, part of the render is effectively skipped and results in many blank tiles. Based on the behavior of test-world it seems like the entire region might get rendered blank in this particular state of my world files.

I've been looking at chunks [85, -59] which is the top-left chunk in the unvisited area and also [84, -59] (immediately to the left, a generated chunk) for differences but I'm new to NBTs so the learning curve's a bit steep for me right now.

@CounterPillow
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@cliffmeyers I don't see your upload, if it's small enough try attaching it to the issue here.

@cliffmeyers
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@CounterPillow sure, here it is: test-world.zip

@cliffmeyers
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@lajawi you might want to check out the branch from @ralokt in #2051 - I built his branch and ran against my test world and the unvisited chunks are now rendering, and it handles the ungenerated chunks as you expect (empty space)

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