Focus on current bounding-box when resetting camera-eye on a 3D space view (double click it)

[Wumpf]

What

• Fixes Too large accumulated bounding box often leads to poor default camera view #5204

Bit back and forth on this: Originally also wanted to track the non-accumulated bounding box when data comes in, but for many scenes this gets too awkward.

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[teh-cmc]

Yeah makes more sense I think

[emilk]

When tracking an entity (camera), reset_camera is called each frame, I believe.

Won't resetting last_eye_interaction each frame cause the center of the orbit camera to show up each frame?

Also, what does this have to do with the PR description?

[Wumpf]

no, tracking works differently, there's a tracked_entity for which there's special code how to handle that, in fact reset_camera sets tracked_entity to None. The last eye interaction is set here to stop this snippet from operating https://github.com/rerun-io/rerun/blob/main/crates/re_space_view_spatial/src/ui_3d.rs#L113

[Wumpf]

Originally I also wanted that thing

        if self.last_eye_interaction.is_none() {
            self.interpolate_to_orbit_eye(default_eye(
                &bounding_boxes.accumulated,
                scene_view_coordinates,
            ));
        }

to use the current bounding box, but in many example scenes this looks too jerky

[Wumpf]

accumulated bounding box is pretty bad generally. If you spawned your objects at the origin and then transformed them where they should go, you always have the origin in your bounding box despite it being far off. There's no way for us to tell whether it's part of the scene or not