Natural Selection 2

Natural Selection 2

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Editor Layer/Group list and hidden tools/features
By Samoose
This guide is meant to provide map creators with a list of possible layer and group names that are used by the game, as well as other hidden things not obvious.
 
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Layers
These are layer names that are used by the game.

Vents
Putting geometry and props in this layer will become highlighted yellow on the minimap (requires map to be ran through Overview.exe). Note that anything in this group can not be in CommanderInvisible or it won't work.

Pathing
This layer is created by the Pathing tool, and contains geometry that is used for pathing calculations.

ReflectionsInvisible
Anything in this layer will be invisible when reflections are built, and won't be shown in reflections.
Groups
Anything in the following group names will be used by the game.

CollisionGeometry
Invisible and blocks all movement.

InvisibleGeometry
Invisible, blocks anything default geometry would block, including projectiles like bullets, and GL rounds.

NonCollisionGeometry
Visible and won't block anything.

OcclusionGeometry
Used by the game to process occlusion.

CommanderInvisible
Anything in this group will be invisible for overhead view (commanders and spectators).

CommanderInvisibleVents
Anything in this group will be invisible for overhead view (commanders and spectators) but will also be highlighted yellow on the map.

CommanderBuild
Any geometry or props in this group will allow the commander to place structures on it.

CommanderNoBuild
Any geometry or props in this group will not allow the commander to place structures on it.

Low Lights
This group is used as a performance improving minimal lights group, basic lighting with fewer lights than normal lighting layer.

OverviewInvisible
This group will be hidden when generating the overview map.
Materials
Set geometry faces to the following textures to be used by the game

nocling
Geometry with this texture will not allow Aliens to grip to it. Also blocks infestation from growing on it. Must be put in CollisionGeometry group.

tunnel_allowed
Geometry with this texture will allow tunnels to be built even off nav mesh. Must be put in CollisionGeometry group.

no_evolve
Geometry with this texture will not allow players to evolve on top of it. Must be put in CollisionGeometry group.

decals
Specifying "decals = 0.5" without quotes in a .material file will cause decals to not be projected onto the model with this material. 0 will allow decals to be projected. This is useful for things that move, like fans. See models/props/refinery/refinery_fan_blade_01.material for an example.

highlight
Specifying "highlight = 0" without quotes in a .material file will cause the model/material to not be highlighted in Alien vision. 1 will highlight the model/material in Alien vision. Specifying a value of 0.5 will cause the model/material to not be highlighted in Alien vision and not have decals projected onto the model/material. Note that anything with a highlight value of less than 0.5 will have decals projected onto the model/material.
Pre-placed Entities
ns2_gamerules
You can specify the music that plays at the start of a round on this entity.

Infantry Portals
For each tech point that Marines can spawn from, you should place two Infantry Portals, this tells the game where the Infantry Portals should spawn at that tech point.

Cysts
You should place cysts to the starting resource nozzle to make sure that the Harvester starts out cysted.