Non-uniform scaling in camera transform seems to mess things up

[aldanor]

If you add a different scale to x and y in the camera transform, it seems to completely mess things up. Wonder if that might be an easy fix?

[aldanor]

For zooming, I think it's these lines that just straight ignore pos.scale:

bevy_pancam/src/lib.rs

Lines 131 to 135 in cfaa0b2

	let mouse_world_pos = pos.translation.truncate()
	+ mouse_normalized_screen_pos * proj_size * old_scale;
	pos.translation = (mouse_world_pos
	- mouse_normalized_screen_pos * proj_size * proj.scale)
	.extend(pos.translation.z);

[aldanor]

And for movement, it's this line that ignores transform.scale:

bevy_pancam/src/lib.rs

Line 210 in cfaa0b2

let mut proposed_cam_transform = transform.translation - delta_world.extend(0.);

[johanhelsing]

Why are you scaling the camera? Not saying we shouldn't try to fix it, just curious.

[aldanor]

Maybe I'm missing something or doing it wrong (I'm a bit of a newb in bevy overall), but I need an option to scale x-y separately, e.g. for a time series plot you could zoom in just on time. Not sure if there's a better way to do it than scaling the camera (which works perfectly fine, with a few fixes in pancam).

[johanhelsing]

Okay :) If it's an easy fix, a pr would be very welcome!