Rotoscoping is tedious, but necessary if you want to control every single part of an image in a motion picture. DaVinci Resolve Studio has AI Magic Mask to automate the tracking of moving objects, but it’s not really that magical. Let’s assume you want to increase the saturation of a blue shirt so it pops for better color contrast. One second it’s tracking the shirt as expected, then a painfully slow minute later it’s gobbling up the wall in background or a pillow on the bed. Perhaps the AI did this for just a frame or two and you missed it. You think everything went okay until you drop an external key node to adjust the saturation. The inconsistency becomes painfully obvious at playback where for one nanosecond the wall jumps to a different color.

Congrats! You just encountered “matte chatter” which is the kind of slop those cinematographer influencers on YouTube forget to bring up when they hype up the latest and greatest iteration of DaVinci Resolve Studio. You fix it by adding an adjustment point called “remove click” but then it messes up something else making you feel like you’re playing a game of whack a mole. A workaround would be to manually to paint a stroke to each frame that the AI couldn’t get right, but be careful not to move one of those blue or red dots in the frame Resolve calls “clicks” or it will wipeout some or all of the tracking data as if it’s trying to rage bait you. This is mostly why it takes me forever to drop new videos.