Hl2/materials/brick/brickfloor001a
From Valve Cut Content
brickfloor001a is a brick floor texture that has been present in Half-Life 2 since its very earliest stages of development.
Despite its apparent age, the texture has gone seemingly-unchanged through the many titles it appears in.
Versions
oldtrans.txt
This texture was originally named urb_street06a before getting its current name. As of the time of writing, this incarnation of the texture (or any references to it) has not been found anywhere else.
2003 Leak Half-Life 2
VTF 7.0
DXT1
SRGB
Half-Life 2 (SDK 2006)
VTF 7.1
DXT1
(unknown flag)
Half-Life 2 (Post-OrangeBox)
VTF 7.1
DXT1
SRGB
2023 Repo Leak
The .TGA file for this texture is present in the 2023 leak within the hl2 materialsrc/brick directory.