Unused geometry in Alpha 0.52

[hlstuff]

Silodemo has an untextured room(BLACK texture) under a tentacle monster.

I believe it is the same room as shown on the screenshot:
https://valvearchive.com/archive/Half-Life/Half-Life/Screenshots/C1a4%20-%20Blast%20Pit/RESERVOI.BMP

Can someone apply textures to it?

[Toasttf]

Very nice find!

I'll try to use/find some decompilations and see what I can do.

[hlstuff]

It seems someone in the mapping topic already found it and applied texture:
https://hl2-beta.ru/index.php?topic=28093.msg28337#msg28337