For complete workflow compatibility, we recommend downloading the Original format.The viewer version is intended exclusively for browser preview. In the source file, the following are fully preserved:✔ native scene structure✔ complete materials without reduction✔ proper texture maps✔ proper object namingIf you intend to use the asset in a production environment, choose the source file.The model is easy to use and is great for filling and complementing your scenes architectural concepts and renders prototyping storyboarding and sketching quick compositing and kitbashing.