Hangar Bay — COG Factory

Q. Does a real SKY surface (surf_flags 0x200) open a room to the outside, and can one big volume read as scale rather than as emptiness?

Yes — the sprint's most reusable single finding. A surface flagged 0x200 with the stock 00starry.mat renders as the sky box: a real starfield through the bay mouth, with nothing modelled beyond it.

archetype	Starship hangar bay
project	p35-hangar-bay
date	2026-08-25
built	2 sectors · 17 surfaces · 5 sky faces
package	P35.GOB, readme.txt, screenshot.jpg
build	1 — 2026-09-05
sha256	746dce8bb97963b8bddc089cd17b9cf63cb3d6db47395b27cf9400a16114782f

Installing it

Unzip it.
Drop the .GOB into the episode folder of a Jedi Knight install — the one that already has JK1.GOB in it.
Pick it from the episode list. On a libretro frontend, load the .GOB itself as content.

The GOB carries its own level, cogs, materials and sounds and reads the stock resource/ for everything else. There is no retail game data in the zip.

These are living projects, not finished releases. A level is rebuilt whenever something is learned — a lighting rule, a texture orientation, a whole detail pass — and it keeps its filename through all of it. The build number is how to tell which one you have: it is printed in the readme inside every zip, and it only moves when the level's bytes actually change.

Screenshots

reference

in engine

Textures generated for this project

$hbdeck$ $hbroof$ $hbrib$ $hbpanel$ $hbgantry$ $hbtrim$

The readme that ships with it

========================================================================
 Jedi Knight Level

 P35.GOB

 Does a real SKY surface (surf_flags 0x200) open a room to the outside,
 and can one big volume read as scale rather than as emptiness?

 [cogfactory / p35-hangar-bay]

 BUILD 1  --  2026-09-05
 sha256 746dce8bb97963b8bddc089cd17b9cf6

 This level is not made or distributed by LucasArts
 Entertainment Co.
========================================================================

THIS PACKAGE
------------------------------------------------------------------------
  P35.GOB          the level
  readme.txt       this file
  screenshot.jpg   what it looks like

INSTALLATION
------------------------------------------------------------------------
Drop P35.GOB into the `episode` folder of a Jedi Knight install (the one
that already has JK1.GOB in it) and pick it from the episode list.
Nothing else needs to change: the GOB carries its own level, cogs,
materials and sounds, and reads the stock resource/ for everything else.

On a libretro frontend, point the core at the GOB itself. It needs a
folder beside it holding `resource/` from a real install -- that is
where the retail data lives and none of it is in here.

WHAT IS IN THE GOB
------------------------------------------------------------------------
        95  episode.jk
     32969  jkl\p35hang.jkl
      1099  jkl\p35hang.manifest.json
      3862  3do\hbrib.3do
     32908  mat\hbdeck.mat
     32908  mat\hbgantry.mat
     32908  mat\hbpanel.mat
     32908  mat\hbrib.mat
     32908  mat\hbroof.mat
     32908  mat\hbtrim.mat

    235473  bytes in 10 entries

CREDITS
------------------------------------------------------------------------
  Generated by tools/cogfactory in the openjkdf2_libretro tree.

  The readme format is styled after SM Sith Lord's cog headers,
  because his are the ones everybody read.

========================================================================