Hi Brian,

re:
> Question 1: What data is saved? Where and how is it saved?

The bitmap pixel data gets saved inside a data chunk in the .3dm file. So the bitmap will be contained inside the .3dm file and will be able to be displayed even if the original bitmap file is not present.


> Question 2: If the .3dm with embedded image(s) is loaded into Rhino 7, can the Image be viewed? (No?)
> Or can the image data be accessed in Rhino 7?

It's saved in what is called a "user data table", but the data inside the user data table is not accessible to Rhino, it doesn't know how the data inside the table is structured.


> Question 3: If the source bitmap image is deleted from the computer, can the bitmap image be restored
> from the embedded image in the .3dm?

There is not currently any method set up for extracting an embedded bitmap image out to a separate file again.

- Michael