toggle-env-objects

Use the toggle_env.py script with disable and a CityObjectLabel, for example `disable --label Buildings` or `disable --label Vegetation`. This hides every matching static object, affecting both rendering and collision, and `enable --label X` restores them.

Run `toggle_env.py list` for a whole-map summary grouped by CityObjectLabel, or `list --label Buildings` for a count and sample of a specific label. The `labels` command prints all valid CityObjectLabel names.

Yes, get_environment_objects and enable_environment_objects work normally on CARLA 0.10.0, which adds a new Rock label (= 29). Map layer calls like load_map_layer are silently ignored on 0.10.0, so environment objects are the mechanism that actually hides geometry.

Environment object toggles are per-world state, and a map load or reload rebuilds all objects. Re-apply the disable commands after any load-map operation to restore the hidden state.

Yes, use the --name option for a case-insensitive substring match on the asset instance name, such as `disable --label Poles --name lamp`. A --limit option caps how many matched objects are toggled, and --dry-run previews the set first.

The usual cause is a headless server started with -nullrhi, which does no rendering, or targeting the wrong label. Use a rendered server and run `list --label X` to confirm the target set is non-empty.