Streaming Maps, MLOs, Vehicles and Clothing in FiveM

Streaming maps, MLOs, vehicles and clothing

In short

Anything that adds or replaces game content — maps, MLOs, vehicles, clothing, props, the minimap — is streamed: the files sit in a resource’s stream/ folder and players download them on join.

File	Contains	Used for
`.yft`	Fragment model	Vehicles, some weapons and props
`.ydr`	Drawable model	Props, weapons
`.ydd`	Drawable dictionary	Clothing, peds, minimap geometry
`.ytd`	Texture dictionary	Textures for everything
`.ybn`	Collision bounds	Maps and MLOs
`.ymap`	Placements	Where entities sit in the world
`.ytyp`	Archetype definitions	New props and interiors
`.meta`	Data files	Vehicles, handling, weapons, peds

fxmanifest.lua — an add-on vehicle

fx_version 'cerulean'
game 'gta5'

files {
    'data/vehicles.meta',
    'data/handling.meta',
    'data/carvariations.meta',
    'data/carcols.meta',
}

data_file 'HANDLING_FILE' 'data/handling.meta'
data_file 'VEHICLE_METADATA_FILE' 'data/vehicles.meta'
data_file 'CARCOLS_FILE' 'data/carcols.meta'
data_file 'VEHICLE_VARIATION_FILE' 'data/carvariations.meta'

Assets above 16 MiB of physical memory trigger the oversized-asset warning. Downscale 4K textures to 2K or 1K and compress them with mipmaps.
Maps and MLOs need this_is_a_map 'yes'; new props need a .ytyp declared with data_file 'DLC_ITYP_REQUEST'.
Two resources streaming the same file name conflict — only one wins. This is the usual cause of a broken minimap.
Very large asset counts can exceed game pools such as TxdStore; raise them with increase_pool_size within Cfx.re’s limits (see the performance chapter).
Check the Cfx.re Portal for any subscription requirement before streaming custom clothing.

Streaming maps, MLOs, vehicles and clothing

The Server Handbook for FiveM