Turn a house model into a real interior (MLO): drop it, its inside is made for you, add storeys, rooms, doors and windows, and it is still seen from outside.
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MLO Creator turns a house model into a GTA V interior (MLO). Drop a .glb, or a .ydr or .yft with its .ytd: its storeys and footprint are found and its inside is made for you, then add rooms, doors and windows. The house is still seen from outside.
Look at it from outside and in cutaway, place it on the map and download a FiveM resource with the MLO, its collision, rooms and portals.
You get: A FiveM resource: the house on the map with a real interior (MLO) inside, its collision and portals.
Every tool is free to try: 5 exports a day, files up to 25 MB. The paid plans raise the limits. See the plans.

Shell CreatorDraw a walk-in shell on a floor plan: rooms in cells, doors, windows, storeys and stairs, seen in 3D. As a prop or a real interior (MLO), with its collision and the code to go in.
Collision StudioTurn a GLB into a map collision (.ybn): a game surface and flags for each of its materials, placed on the map, drawn back over the model.
YTYP EditorOpen a .ytyp and change its archetypes: LOD distance, dictionaries, flags explained one by one, bounds, extensions (ladders, fire, seats), interiors' entity sets and time cycles.
Navmesh ViewerSee where peds can walk: a navmesh (.ynv) in 3D by its flags, with links, islands peds can't reach, and holes. A viewer, not a generator.