This week we learned how to use the roto tool and the different functions included in the tool.
For the first step, we add new points to the video, around the man’s face, set keys and adjust the points through frames to make sure that the points always tracks the man’s face. We could also adjust the shape every 2 or 3 frames manually, which could make the work quicker.
We could use tools at the left-hand side of the video to adjust the shape of those points.
If we select the roto box and then press 1, we can attach the roto to the viewer1, and than we can see the alpha channel of the roto by pressing “A”, which is black and white. We can also delete the alpha channel by adding the remove box if we want to remove it.
We can press ctrl and shift key to replace one box with another. So we just replaced the original one with the new roto box that we have been worked with. There are also boxes called Blur and FilterErode connected to the roto box, we can change the data of them to makes the scene looks different.
Then, I created the rotos of the man’s whole body separately, which could help the roto to track the body easier.
This is a short practice: