Tiny map shake while zooming in on raster tiles

[ChrisLoer]

In v0.44 on the "raster tile source" example, if you zoom in you can notice (at least on Mac Chrome/Firefox/Safari) a slight jitter back and forth:

My initial guess is that this has something to do with the recent change to align raster tile projection matrices to a pixel grid.

/cc @anandthakker @kkaefer @mollymerp

[jfirebaugh]

See #6709 and mapbox/mapbox-gl-native#11737 for similar reports.

@kkaefer What do you make of these issues? Is it possible to reconcile the simultaneous expectation of crisp raster imagery and zero "stutter" between a raster overlay and vector basemap?

[P-Zenker]

Any updates to this issue(s)?

[mourner]

@jfirebaugh maybe it should pixel-align when idle, and not align while animating?

[wboykinm]

@jfirebaugh I can confirm the effect is pretty crazy when slowly easing. Here's a raster tileset on top of a style that's meant to match, but you can see the foreground overlay dancing all over the base:

(Might be better-visible in the example map itself than in the above poor-framerate gif)