Camera Limits and Annotations are incompatible in the regular viewer and 3D Settings. However, it is possible to combine the two features when using the Viewer API to build an application on top of the Sketchfab viewer in your own website.
There are two options to do this:
- Enable camera limits in 3D Settings like usual, and then use the Viewer API to create annotations at run time. Check out this example. Note how there are camera limits enabled by default, but you can then create annotations.
- Use the Viewer API to manage both camera limits and creating annotations. Check out this example. Notice how the "front" and "back" of the product have their own camera limits and annotations.
In 3D Settings, you can find a "Developer logs" tab to easily copy the JSON data needed to use annotations and camera limits in the Viewer API.