- o -
- object_level
: Engine
- offset
: lump_t
, Terrain
, wad_lump_t
, bmpheader_t
, JZFileHeader
, terrain_t
, pak_entry_t
- offsets
: miptex_s
- old_contrast
: Quake3
- old_orientation
: RigidBody
- old_position
: RigidBody
- on_ground
: Bsp
, RigidBody
- one_minus_src_alpha_src_alpha
: faceinfo_t
, stage_t
- opening
: Entity
- order
: Floor0
- orient
: md5_base_t
, md5_joint_t
- origin
: dmodel_t
, Entity
- outputs
: stb_vorbis
- owner
: net_projectile_t
, Projectile