Which file formats are commonly used to export 3D assets for Unity imports?

• A. PNG
• B. WAV
• C. FBX or OBJ
• D. MP3

Answer: (C)

Exporting 3D geometry for Unity relies on formats that carry meshes, UVs, materials, and sometimes animation data: FBX and OBJ. FBX is widely favored because it can store the mesh plus rigging, skinning, textures, and animation, making it ideal for characters or moving objects that should come into Unity with minimal extra setup. OBJ is simpler and describes the mesh geometry (vertices, normals, texture coordinates) and can reference materials via an accompanying MTL file, which suits static models without animation. Unity can import both formats, and textures are typically linked separately in the project. For textures, image formats like PNG are used, and for audio, formats like WAV or MP3 are used—these are not used to export 3D models.