FBX File

FBX (.fbx) is a proprietary 3D interchange file format developed by Autodesk. A single file can carry geometry, materials, textures, skeletal rigs, and animation, which made it the de-facto standard for moving assets between DCC tools and game engines. It exists in both binary and ASCII variants.

FBX is used to transfer 3D models, materials, rigs, and animation between 3D software and game engines. It is especially common for delivering rigged, animated characters into Unity and Unreal Engine because it bundles the skeleton and animation with the mesh in one file.

OBJ stores only static geometry and basic materials. FBX is far richer and can also carry skeletal rigs, animation, cameras, and lights in a single file. Choose OBJ for simple static props and FBX for animated or rigged assets.

FBX is an Autodesk authoring and game-import format that supports rigs and animation but is proprietary. GLB is an open, compact, PBR-native format designed for web and real-time delivery. FBX dominates authoring pipelines while GLB is preferred for shipping to browsers and AR.

Yes. Blender, which is free and open-source, imports and exports FBX, and many free online viewers can preview .fbx files in the browser. Autodesk also provides a free FBX Review application.

Drag the .fbx file into your Unity project's Assets folder and Unity imports it automatically, generating a prefab with its meshes, materials, and any animation clips. You then adjust import settings such as scale, rig type, and material extraction in the Inspector.

Most FBX problems come from version drift between the exporting and importing software, since FBX is proprietary and updated frequently. Scale mismatches, missing textures, and broken rigs are common; re-exporting from a matching FBX version and embedding textures usually resolves them.

FBX can reference textures and optionally embed them inside the file, but by default textures are often stored as external image files next to the .fbx. Enabling embedded media on export packs the textures into the file for easier sharing.

Yes. Meshy exports directly to FBX with textures included, so an AI-generated model drops straight into your Unity or Unreal project without a separate conversion step. This makes it fast to move generated assets into a game pipeline.