# Collision Flags

`floor`: for things that avatars can stand on

`barrier`: for things that avatars should collide against that are not floors

`camera-collide`: for things that the camera should avoid

`trigger`: for things (usually not barriers or floors) that should trigger an event when avatars intersect with them

`sphere`: for things that should have a collision sphere around them

`tube`: for things that should have a collision tube (cylinder) around them

## Notes

The `barrier` & `camera-collide` flags are typically used together.

Currently, the camera automatically pulls itself in front of anything marked with the `camera-collide` flag, so that the view of the avatar isn't blocked.

The `trigger` flag implies that avatars will not collide with the object; they can move freely through it.

The `sphere` & `tube` flags create a collision object that is as small as possible while completely containing the original flagged geometry.