I'm confused. Is Kdenlive a program for post-processing, or can I import my video live? I was looking at the light painting plugin (http://kdenlive.org/users/granjow/writing-light-graffiti-effect) and it's unclear to me how I can get my video into this software live to do the pixel manipulation. Will this process only work with a webcam?
I have a Cannon D5 Mark II which I saw is a supported camera.