OTEX

OTEX is a texture pack created by Ola Björling (ukiro). It was released on December 10, 2018 for Doom's 25th anniversary, alongside Eviternity, a megawad developed using the pack. OTEX has proved widely popular since its release, being incorporated into numerous projects.

OTEX features 2539 textures made from 3892 patches, and 1203 flats. It provides a SWITCHES lump defining 27 new texture pairs, and an ANIMATED lump defining 76 new animations spread between 48 for textures and 28 for flats. Some of the switch textures are animated in their "ON" state. There are 51 skies, most of which are 1024-texel wide (one is 512-texel wide), and all of which are 200-, 240-, or 256-texel tall.

Nearly all flats and wall textures follow the same naming convention: the letter O (for Ola), followed by a group identifier of four letters (for example: BASE), a single letter for color or subgroup, and finally two digits. Some flats use cardinal and ordinal directions (such as _E or NW) to indicate their positioning relative to other flats of the same group. Skies are simply called OSKY followed by a two-digit number.

Themes include:
 * nDMD (diamond tiles)
 * BASE
 * BKMT (black metal)
 * BNKR (bunker)
 * BONE
 * BOOK
 * BRCK (brick)
 * BSKT (basketweave tiles)
 * CBBL (cobblestones)
 * CHAN (chain)
 * CHRM (chrome)
 * CMBD (?)
 * CNDR (?)
 * COMP (computers)
 * CONC (concrete)
 * CRAT (crates)
 * CRPT (carpet)
 * DIAG (diagonal tiles)
 * DIRT
 * DMND (diamond tiles)
 * DMUD (dried mud)
 * DOOR
 * EFCT (effect?)
 * EXIT
 * FADE (gradient metal)
 * FALL (fluid falls)
 * FENC (fences)
 * FIRE
 * FLAG
 * FLSH (flesh)
 * FNCY (fancy moldings)
 * GATE (portcullis)
 * GOOP
 * GRAT (grate)
 * GRBL (?)
 * GRSS (grass)
 * GRVL (gravel)
 * HERR (herringbone tiles)
 * HELL
 * HEXA (hexagon tiles)
 * ICE_
 * ICYW (icy water)
 * IRON
 * KEYS (skull markers)
 * LASR (lasers)
 * LAVA
 * LGHT (neon lights)
 * LLLL (light patterns)
 * MECH (mechanics)
 * METL (metal)
 * MRBL (marble)
 * MRLT (?)
 * NDST (industrial)
 * NMLM (? tiles)
 * NUKE (nukage)
 * PALC (palace)
 * PAVE (interlocking pavers)
 * PENT (pentagonal tiles)
 * PIPE
 * PLUS (cross-shaped tiles)
 * POOP (brown water)
 * QSLP (anti-slip flooring)
 * RAIL (railing)
 * ROCK
 * RTDC (?)
 * SAND
 * SKIN
 * SLNT (slanted tiles)
 * SLUD (sludge)
 * SNOW
 * SOIL
 * SOLID (solid colors)
 * SPRT (support)
 * STAR
 * STCC (stucco)
 * STON (stone)
 * SWTCH (switches)
 * TAR_
 * TECH
 * TLnn (n x n tiles)
 * TLPT (teleport)
 * TMPL (temple? tiles)
 * TRAK (doortracks)
 * TRHX (triangle hex tiles)
 * TUDR (Tudor)
 * VENT
 * VINE
 * WARP (portals)
 * WATER
 * WOOD
 * WRNG (warning stripes)

Notable projects using OTEX

 * Eviternity (2018)
 * 32in24-17 (2019)
 * Remnant (2019)