# NIF File Format Documentation

NIF Objects | Compound Types | Enum Types | Basic Types | File Versions

## SkyrimLayer

Physical purpose of collision object? The setting affects objetct's havok behavior in game. Anything higher than 47 is also null.

### Choices

Number | Name | Description
--- | --- | ---
0 | SKYL_UNIDENTIFIED | Unidentified
1 | SKYL_STATIC | Static
2 | SKYL_ANIMSTATIC | Anim Static
3 | SKYL_TRANSPARENT | Transparent
4 | SKYL_CLUTTER | Clutter. Object with this layer will float on water surface.
5 | SKYL_WEAPON | Weapon
6 | SKYL_PROJECTILE | Projectile
7 | SKYL_SPELL | Spell
8 | SKYL_BIPED | Biped. Seems to apply to all creatures/NPCs
9 | SKYL_TREES | Trees
10 | SKYL_PROPS | Props
11 | SKYL_WATER | Water
12 | SKYL_TRIGGER | Trigger
13 | SKYL_TERRAIN | Terrain
14 | SKYL_TRAP | Trap
15 | SKYL_NONCOLLIDABLE | NonCollidable
16 | SKYL_CLOUD_TRAP | CloudTrap
17 | SKYL_GROUND | Ground. It seems that produces no sound when collide.
18 | SKYL_PORTAL | Portal
19 | SKYL_DEBRIS_SMALL | Debris Small
20 | SKYL_DEBRIS_LARGE | Debris Large
21 | SKYL_ACOUSTIC_SPACE | Acoustic Space
22 | SKYL_ACTORZONE | Actor Zone
23 | SKYL_PROJECTILEZONE | Projectile Zone
24 | SKYL_GASTRAP | Gas Trap
25 | SKYL_SHELLCASING | Shell Casing
26 | SKYL_TRANSPARENT_SMALL | Transparent Small
27 | SKYL_INVISIBLE_WALL | Invisible Wall
28 | SKYL_TRANSPARENT_SMALL_ANIM | Transparent Small Anim
29 | SKYL_WARD | Ward
30 | SKYL_CHARCONTROLLER | Char Controller
31 | SKYL_STAIRHELPER | Stair Helper
32 | SKYL_DEADBIP | Dead Bip
33 | SKYL_BIPED_NO_CC | Biped No CC
34 | SKYL_AVOIDBOX | Avoid Box
35 | SKYL_COLLISIONBOX | Collision Box
36 | SKYL_CAMERASHPERE | Camera Sphere
37 | SKYL_DOORDETECTION | Door Detection
38 | SKYL_CONEPROJECTILE | Cone Projectile
39 | SKYL_CAMERAPICK | Camera Pick
40 | SKYL_ITEMPICK | Item Pick
41 | SKYL_LINEOFSIGHT | Line of Sight
42 | SKYL_PATHPICK | Path Pick
43 | SKYL_CUSTOMPICK1 | Custom Pick 1
44 | SKYL_CUSTOMPICK2 | Custom Pick 2
45 | SKYL_SPELLEXPLOSION | Spell Explosion
46 | SKYL_DROPPINGPICK | Dropping Pick
47 | SKYL_NULL | Null

### Storage Type

byte

### Found In

- bhkRigidBody
- bhkWorldObject