trigger_camera #

Stop by player input - allow player to press ‘+use’ in order to stop watching at the camera.
Target when turned off.

Player Invulnerable - make player invulnerable to attacks while they’re using the camera.
Ignore Hold Time - ignore hold time, turn off only when re-triggered.
Alive player only - prevent camera activating on the dead player (which is possible in Half-Life).
Don't fire look target - prevent firing the entity the camera looks at (we keep this weird behavior from Half-Life by default in order to maintain compatibility).
Don't slow down if not Freeze Player - in Half-Life trigger_camera slows down its movement if Freeze Player spawnflag is not set. It’s unknown why it’s coded this way. Tick this flag to prevent such behavior.
Don't skip the first path corner - in Half-Life trigger_camera actually skips moving to the first path corner path. Tick this flag to fix this behavior.
Instant Turn - instantly turn to the target on activation. By default camera starts at its angle (as it’s set in the editor) and then gradually turns to the target. Set this spawnflag when such behavior is not desired.

The camera view is getting restored when the saved game is loaded.
When trigger_camera is removed from the map, the player gets their view reset and gains the control back (if Freeze Player was set).

If player gets across the level transition while the camera with Freeze Player spawnflag is active (e.g. if trigger_changelevel gets triggered) the player will stay frozen in the next level. To make sure the player doesn’t stay frozen use trigger_playerfreeze with ‘Unfreeze’ use type.