Do we need ready 3D models?
No. Ready CAD files or models speed things up; without them the scene is built from drawings or photos, which affects time and cost.
Will it work on a phone?
It depends on the scene. A heavy scene gets a lighter mode; whether phones are a target is agreed before the work starts.
Can it live on our own site?
Yes: the scene can be embedded into your page or opened by a separate link. Hosting is agreed separately.
Can you build a product configurator?
We have no public configurator case yet. The task can be discussed: we'll say honestly what is feasible and what to check first.