For production-ready use, we recommend downloading the source format.The viewer version is intended for web viewing only. In the source file, the following are fully preserved:✔ original scene hierarchy✔ complete materials without reduction✔ correct PBR texture maps✔ proper object namingIf you intend to use the asset in a production environment, select the Original format.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.