For full functionality, we recommend downloading the Original format.The Converted version is intended only for use in the web viewer. In the source file, the following are fully preserved:✔ native scene structure✔ complete materials without reduction✔ correct PBR texture maps✔ proper object namingIf you intend to use the asset in a production environment, choose the Original format.Republic of Korea KSS3 Do san An chang ho Class Submarine