How was Avatar filmed?

How Avatar was filmed: The virtual camera synchronized the two worlds.

At a cost of $6.5438+0.4 million, the world's top-class high-definition stereo camera equipment and a virtual camera that can observe the fit between the actor's actions and the virtual world in real time when shooting live performances enable Cameron to adjust and guide every scene of the actor on the spot-which can save a lot of time for later "correction".

When Cameron filmed Avatar, he also used an innovative facial capture device. He installed such a camera device on the head of every actor who needs to "capture the performance". The core of the device is a miniature high-definition camera, which is only a few inches away from the actor's face. It can record the subtle expression changes of the actor's face with a wide-angle lens, and then transmit 95% of the action of the actor's face to the virtual character in the computer, so that the computer-generated character's every move is no different from that of the real actor.