Subpixel tracking

the nicest feature of motor is that it’s able to track small subpixel movement and that’s vital for rotos where you don’t want to have your roto slip. one can use a tracker to stabilize the roto with the tracking information of shake/FFI or whatever compositing application you want but the real power is that it does give you 4 point tracking as a group. if u track 2/4 point in shake then apply translate/rotate/scale and your trackers are not moving with the same consistency you deform the roto and you’re lost. you cannot rely on this technique if you have rotation and scaling. it works just fine on 1 pt tracking but not on 2/4 pts tracking with tiny subpixel shifting. that’s why we bought motor. planar tracker rocks on subpixel shifting.

adrian cruceru
digital FX