Globe: Flickering and missing layers when panning/zooming

[zerda-ocm]

maplibre-gl-js version: 5.0.0-pre.6

browser: bing, chrome

Steps to Trigger Behavior

1. create a vector map with line layers
2. set projection to globe
3. zoom or move around

Link to Demonstration

https://jsbin.com/zusijan/edit?html,output

bandicam.2024-11-09.15-23-26-826.mp4

Expected Behavior

No flickering and complete drawing of layers.

Actual Behavior

This bug is apparently present since the merge of #3983

[HarelM]

You have linked an issue and not a PR. The relevant PR is:
#4779

Please create a minimal reproduction of this issue, as the linked jsbin contains a lot of complicated logic around tile loading...

[HarelM]

Cc: @NathanMOlson

[zerda-ocm]

Please create a minimal reproduction of this issue, as the linked jsbin contains a lot of complicated logic around tile loading...

https://jsbin.com/jakoxob/edit?html,console,output

[HarelM]

This style still has too many layers, can you simplify it, and hopefully revive the PMTiles related code (as those can introduce noise)?

[birkskyum]

It looks a lot like z-fighting to me. Could be some subdivision issue

[birkskyum]

Do we see issues only with the line layer?

[zerda-ocm]

This style still has too many layers, can you simplify it, and hopefully revive the PMTiles related code (as those can introduce noise)?

I will try to replicate this with some geojson, but that will take some time.

[zerda-ocm]

Do we see issues only with the line layer?

I haven't seen this issue with other layer types.

[russss]

I'm also seeing this issue on OpenInfraMap, which isn't using PMTiles. I believe it's only happening on line layers.

[birkskyum]

I do see some flickering in mercator projection too:

Screen.Recording.2024-11-09.at.22.08.09.mov

[zerda-ocm]

Demo with geojson as a source and just a few line-layers.
https://jsbin.com/novugaxewo/edit?html,console,output

Fewer layers seemingly makes it a little bit harder for the bug to show up, but zooming in on one of the lines should work.

[HarelM]

Can you add a video of the problem in the latest shared jsbin? I'm not sure I can't see the issue...

[birkskyum]

I zoomed in quite far, and got this:

Screen.Recording.2024-11-10.at.15.06.04.mov

[HarelM]

Thanks @birkskyum for the video!