como posso transformar foto em 3d
Accepted answer

From a single photo, there are limited options.
These silhouette models are quickly made from a single image: Silhouette Scale Model Reference Pack
This plaque is also from a single reference image, but it took a lot longer to build: Knight Plaque Emblem
If you have a lot of properly captured images, photogrammetry becomes an option: https://www.3dscanstore.com/blog/3d-scanning-reflective-objects