import gradio as gr
import trimesh
import tempfile

def load_and_show_3d(model_file):
    # 后端加载校验模型，前端Three.js渲染
    mesh = trimesh.load(model_file)
    return model_file

demo = gr.Interface(
    fn=load_and_show_3d,
    inputs=gr.Model3D(label="上传GLB/PLY模型"),
    outputs=gr.Model3D(label="实时渲染预览"),
)
demo.launch()