02_pointcloud

from pathlib import Path

import numpy as np
import open3d as o3d

from vuer import Vuer
from vuer.events import Set
from vuer.schemas import DefaultScene, Ply, PointCloud

assets_folder = Path(__file__).parent / "../../assets"
test_file = "static_3d/porsche.ply"

# trimesh has issue loading large pointclouds.
pcd = o3d.io.read_point_cloud(str(assets_folder / test_file))

app = Vuer(static_root=assets_folder)


@app.spawn
async def main(proxy):
    proxy @ Set(
        DefaultScene(
            Ply(src="http://localhost:8012/static/" + test_file, size=0.008, position=[0, 0, 5]),
            PointCloud(key="pointcloud", vertices=np.array(pcd.points), colors=np.array(pcd.colors), position=[0, 0, 0], size=0.008),
            # y-up
            up=[0, 1, 0],
        ),

    )
    print("""
    object is sent.
    
    The second pointcloud should load significantly 
    faster than the first one, due to its smaller size.
    We use half-precision for the vertices, and Uint8
    for the colors. This cuts the overall size by half.
    """)


app.run()