As technology advances, many production studios are using what is known as real-time matchmoving, which is widely used in the film industry. It gives the director a real-time view of what the final result will look like. This includes the 3D elements to be included in the post production. Of course, this representation is not entirely correct, but it gives the director and actors an insight into what it will look like. Actors often work in greenscreen studios and this view allows them to see certain extensions or CG characters right after the shot. For example, if Bumblebee interacted with the actors in Transformers, they have to imagine where Bumblebee would be in the final mix.
Study her footage.
Before you set your tracking points, you should play the footage many times to get a feel for what will happen and how the footage will move. You also need to look for features that are relatively consistent throughout the footage. The things you should avoid when tracking are heavily shaded areas or brightly lit areas and places where the lighting changes. This can make it very difficult for the application to determine which area actually needs to be tracked.
Create tracking markers.
In a more complex matchmoving project, it is often best to integrate a kind of tracking marker. These can be simple markers placed in the material. It is especially important that these tracking points are not deformable for object tracking. For example, creating a CG robot arm instead of one of the actor’s arms. These tracking features should be placed based on the material and they should be hidden by the effect or placed where it is easy to delete them during compositing. It’s also a good idea to have these markers in a lighter color so that it’s easy for the computer to track.
This should give you a first understanding of matchmoving. If you have any questions or suggestions, please contact us via our forum.
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