Hi, all !
I wanted to use in Blender an old trick from AC3D : creating objects based on a background iimage, and at the same time recording the UV’s that wuld allow using this same image as a texture.
And after all these years, I remembered the thing. Trivial, of course, but it can be useful in certain circumstances.
If you are interested, I have created a small .pdf; you can download it from
www.tvi-sarl.com/FTP/BlenderBackgrounds.pdf