[Bug] Something is not quite right when zooming in close to object

[human9]

If I draw a line, then zoom in really close to it, there are some issues with exactly where the line is placed in relation to new lines drawn at the smaller scale. It's hard to describe, here's a video:

Screencast.From.2026-01-26.14-55-18.mp4

This is using the latest release via flatpak: infinipaint-0.4.0-linux-x86_64.flatpak

[ErrorAtLine0]

Unfortunately, this isn't something I can fix easily, since it's a compromise I had to make for performance. The overall position of the brush stroke on the canvas is accurate, but the individual points that make a brush stroke use floating point numbers which can be inaccurate when you zoom in. What this leads to is inaccuracies when you zoom into the edge of an object.

The most you can do without stuff moving around is zoom completely into the object, or zoom completely away from the object. When you zoom into the edge, this bug happens, and there's not much I can do to fix that now.