Start by uploading your photo or using a stock image and selecting 3D Parallax.
Select a Resolution and click next
At the right panel, click on Select Object
Click on the edge around the object
To see better the edge of the object you can zoom in using your mouse scroll wheel.
While zoomed in, you can move the screen by pressing Backspace and dragging with your mouse.
The object will be highlighted after connecting the dots. You can fine-tune the selection by adding more dots (press Control + click) and dragging the dots to the edge of the object.
Enter a name for the Object and click Next