How to import a 3D model in Unity?

To import a 3D model in Unity, drag and drop the model file (e.g., .fbx, .obj, .stl) into the Project window, or go to Assets > Import New Asset to select it from your computer. Common supported formats include FBX (most widely used, preserves animations), OBJ, and STL—Unity automatically processes these into GameObjects with meshes, materials, and linked textures. If the model’s scale, rotation, or materials look off, select the imported asset and adjust settings like “Scale Factor” or “Material Search” in the Inspector window. For beginners, start with FBX files to avoid issues—they retain more data (e.g., animations) than other formats, making imports smoother.