Live2D is an animation technique used to animate still images. Instead of creating frame-by-frame animations or 3D models, the technique divides the image into parts and animates each part accordingly.Live2D models consist of layered parts saved as Photoshop files. The overall animation and expression of the character are displayed by moving the layers individually, for example by tilting the head. Parts can be as simple as the face, hair, and body, or as detailed as eyebrows, eyelashes, or even effects like metallic glitter.

The number of layers depends on how you want the Live2D character to move and the 3D effect you want the result to appear, from 50 layers for a simplified model to 750 for a large, complex project. There is no limit to the level of detail, and some can even model the sides of teeth for best results. Unlike 3D models, there is no traditional skeleton, instead flat layers are twisted and rotated.

Live2D can be used with real-time motion capture to track movements such as head movements, and eye movements, and perform mouth synchronization for real-time applications such as tubing. The downside of the technology, however, is that it is almost impossible to perform 360° rotation and body tracking of complex objects.

Live2D has a wide range of applications in the field of virtual anchors and live streaming, especially in regions such as Japan. By transforming art-illustrated characters into dynamic virtual images, anchors can perform interactive live broadcasts with 2D avatars. Specific applications include virtual YouTubers (VTubers) and virtual spokespersons. In many interactive games, Live2D technology is used to enhance the immersion and interactive experience of the players.Live2D enables the characters to present as if they were three-dimensional movements and effect expressions in the game by layering the images of 2D characters and giving them dynamic effects. For example, in some role-playing games, players can dialogue and interact with the virtual characters in the game, and the characters’ expressions, facial expressions and body movements can be adjusted in real-time according to the player’s choices and changes in the game’s plot, bringing a more vivid experience.

With Live2D technology, the characters in the game are no longer static 2D images, but ‘living’ characters capable of performing delicate expressions and rich movements. This technology not only enhances the interactivity of the characters, but also makes the plot of the game more rich in disease and fascinating, and enhances the emotional connection between players and virtual characters.

In short, Live2D technology brings more expressiveness and interactivity to interactive games, allowing players to enjoy a more realistic and intimate experience in the virtual world.