As the title says, I want to create a 3D human model, is there some API for me to use
How to create a 3d human model on iphone?
Depends on what you are trying to do. If you are trying to create/sculpt a 3D model, you'll probably want to use a desktop app like Maya or Blender to create the model and export it in a common file format like OBJ or USDZ. If you already have a 3D model and you'd like to display/render it on iOS, we have multiple APIs for that. Our main ones are Metal, SceneKit, and RealityKit. SceneKit and RealityKit are easier to work with than Metal if you are a beginner.