Cutting with lines

Hello gamesaladers,
How can I create a scene where I can draw lines (they must be visible) over objects so that they cut in two distinct pieces?
Thanks for help
How can I create a scene where I can draw lines (they must be visible) over objects so that they cut in two distinct pieces?
Thanks for help
Comments
Thanks for answering guys but I was wondering: Can't I draw a line (like in your video) over an acotor and then create a rule saying "when line is drawn over thiis actor cut this actor in half and change image?
Thanks for your helps
Thank you.