A 3D emoji is a stereoscopic expressive material created based on 3D modeling technology. It breaks through the flat limitations of traditional 2D emojis and features a three-dimensional sense of space and richer details. Produced through processes like modeling, rendering, and skeleton rigging, it can display dynamic body movements, subtle facial expressions, and light-shadow changes. Commonly used in social apps, games, short videos, and other scenarios, it conveys emotions more vividly—for instance, simulating the three-dimensional facial contours when a character blinks or smiles—making interactions more realistic and engaging.