app.py

import streamlit as st 
import streamlit_3d as sd

st.title("gltf test2")
md=st.selectbox("3D Model:",["https://alteirac.com/models/helmet/scene.gltf",
                                "https://alteirac.com/models/engine/scene.gltf"
                                ])
# if you want to load existing Annotations:                                
value = sd.streamlit_3d(height=600,model=md,points=[{"description":"LEFT_LIGHT",
                                        "data-position":{"x":0.4595949207254826,"y":0.40998085773554555,"z":0.33846317660071373},
                                        "data-normal":{"x":-0.18705895743345607,"y":-0.3420641705224677,"z":0.9208697246020658}}
                                        ])
# if you simply want to show the model:
# value = sd.streamlit_3d(model=md,height=700)                                        
st.write(value)