I've heard about AVIsynth filters like GrainFactory that add grain to video. I was thinking about using these for watching heavily grain filtered Blu-rays and maybe for when watching upscaled DVDs to create the illusion of higher resolution.
Anyone have experience in using these? Tried Googling but didn't find much information on what settings to use.
I'm mainly looking for something that can simulate 35mm grain and for something that can be used in realtime.