mousemove and queryRenderedFeatures return nothing for overzoomed points and mbtiles

[oberhamsi]

I can produce a minimal example but since i think i can dig into this, any pointers what would cause this and where i should start digging in?

i do the usual mousemove-on-layer -> queryRenderedFeatures https://maplibre.org/maplibre-gl-js/docs/examples/queryrenderedfeatures/

this works 100% if the source is a geojson.

if i create mbtiles from the geojson for zoom 0-2 and use the mbtiles, then mousemove no longer triggers beyond level 9.

[HarelM]

Look for queryRenderedFeatures flow in the code, it's pretty straight forward.
Note that there is a different flow for different type of layers.

[oberhamsi]

i finally did more digging.

when i enable showCollisionBoxes=true on the map, i can see that with pmtiles the collision box gets less padding starting with zoom 9. at zoom 11 the collision box is smaller than the circle and at zoom 12 it's invisible (very small).

i stepped through the constructor of CollisionFeature and noticed that some parameters of the Bucket are very high compared to geojson sources. but i think that's correct, since a lot of overscaling happens. for example:

at zoom 15:
bucket.overscaling=2048
bucket.zoom=15
bucket.tilePixelRatio=0.0078125

whereas geojson has those settings at zoom 15:
bucket.tilePixelRatio=16
bucket.overscaling=1
bucket.zoom=15

this makes the collisionBoxArray for pmtiles very close to zero size (although they are visually as big as with geojson).

i'll try to better understand what's going wrong.