When I was building my 3D engine for the web I thought about creating a component for this kind of thing: showing and interacting with a 3D model (I think this

When I was building my 3D engine for the web I thought about creating a component for this kind of thing: showing and interacting with a 3D model (I think this would be good for stores to display products) and I also thought about displaying panoramic images (inverted sphere with a 360º picture as texture), back then I found some other people doing something similar so I just gave up on the idea. But I for one think this would be a good feature.