Wavefront OBJ
Open BetaOBJ je klasický formát 3D meshu podporovaný všetkým 3D softvérom. Budovy sa vytláčajú do 3D, export obsahuje súbor MTL s materiálmi. Textový formát, ktorý sa ľahko číta a upravuje.
Kľúčové vlastnosti
O formáte OBJ
OBJ is a text format for describing three-dimensional geometry, invented by Wavefront and since then turned into the common language of 3D software: a list of vertices and faces plus a separate .mtl file with materials. It is read by Blender, 3ds Max, Maya, Cinema 4D, SketchUp, MeshLab and game engines — usually with no import settings at all.
An OSM map is exported to OBJ when you need not a picture but a volumetric model of a city block: a base for architectural visualization, an environment for a scene in a game engine, the foundation for a video or a physical model. Instead of modelling houses by hand you get ready-made development and then work with your own object on top of it.
Only buildings make it into the model: outlines are extruded upward to the height from the height or building:levels tags (at three meters per floor), and if there are no tags — to a neutral value so that a house does not stay flat. The colour of each building is set by the type of development and written into the .mtl. Coordinates are meters from the centre of the selected area and the base is flat: there is no relief in the model, and no georeferencing either. You download a ZIP archive with a pair of .obj and .mtl files that need to be kept together.
Aký program otvára súbory OBJ
Nasledujúce programy a aplikácie dokážu otvoriť, upraviť a pracovať so súbormi Wavefront OBJ (.obj) exportovanými z OSM2CDR:
Format specifications
- Open standard
- 3D coordinates supported
- Lossless (no quality loss)
- No attributes
- Output: 2 files in archive
- Wavefront OBJ + MTL material file (ZIP). Universal 3D mesh format; opens in Blender, Maya, 3ds Max, Cinema 4D.
Kto používa mapy OBJ
Ako exportovať OBJ
Ako súbor otvoriť po exporte
- Blender (free) — File -> Import -> Wavefront (.obj); the model arrives with materials if the .mtl is in the same folder. From there, render, edit the geometry or export into another format.
- 3ds Max, Maya, Cinema 4D — standard OBJ import; the scale is already in meters, so it is enough to set the scene units to meters.
- MeshLab (free) — quickly look at the model, measure its overall dimensions, simplify the mesh if there are many buildings.
- Unreal Engine or Unity — drag the .obj into the project as a static environment mesh; materials are usually reassigned with the engine's own tools.
- For 3D printing — first check the model in a slicer or in MeshLab: it is more convenient to print from the STL format, which we deliver separately.
Obľúbené mapy vo formáte OBJ
Získajte mapové exporty vo formáte Wavefront OBJ
Stiahnite si profesionálne mapy OBJ z OpenStreetMap. Okamžité generovanie, ľubovoľná oblasť.
Často kladené otázky
Porovnanie s inými formátmi
Súvisiace formáty
Často exportované spolu
Related Articles
OpenStreetMap to SketchUp: import real buildings and terrain as a 3D model
How to bring OpenStreetMap buildings and terrain into SketchUp via COLLADA, OBJ or glTF: import, units and scale, geoloc
formatGLB and a 3D city map: download a buildings model in GLB, OBJ or STL
What GLB is, how to open it on Windows, online and in Blender, and how to download a 3D city buildings model straight to
formatWavefront OBJ — 3D Format Since 1990: ASCII Structure, .mtl, and OSM Building Export
OBJ deep dive: line-based ASCII from Wavefront Technologies, .mtl companion materials, OSM building extrusion via buildi