LayerMask Manual     Reference     Scripting  
Scripting > Runtime Classes > LayerMask
LayerMask Struct

LayerMask allow you to display the LayerMask popup menu in the inspector

similar to those in the camera.cullingMask. Layer masks can be used selectively filter game objects for example when casting rays.

// Casts a ray using the layer mask,
// which can be modified in the inspector.
var mask : LayerMask = -1;
function Update () {
if (Physics.Raycast (transform.position, transform.forward, 100, mask.value))
{
Debug.Log("Hit something");
}
}

Variables
value

Converts a layer mask value to an integer value.

Class Functions
operator LayerMask

implicitly converts an integer to a LayerMask

LayerToName

Given a layer number, returns the name of the layer as defined in either a Builtin or a User Layer in the Tag Manager

NameToLayer

Given a layer name, returns the layer index as defined by either a Builtin or a User Layer in the Tag Manager