Tool textures (Source)

The tools textures can easily be found in Hammer by running "tools" as a filter word in the texture browser. These textures have extra attributes that most textures do not.

Note: Here's a tutorial on using many of the Source Tool textures shown below [1]

Image	Name	Special attributes
	Area portal
	Black
	Block LOS
	Block bullets
	Block light	Invisible; casts shadow like standard materials
	Clip
	Player clip control
	Fog
	Hint	Breaks up visleafs
	Invisible
	Ladder
	No Draw	Invisible; seals leaks; blocks visibility if used on all surfaces of the same brush
	NPC clip
	Occluder
	Origin
	Player clip
	Skip	Invisible; has no effect on anything
	Skybox
	SkyFog
	Trigger