Ply¶

The Ply component loads and displays PLY (Polygon File Format) point cloud files. This is ideal for:

  • Loading 3D scan data

  • Displaying pre-processed point clouds

  • Visualizing LiDAR captures

  • Loading assets from 3D scanning software

pointcloud

Changing the Tone Mapping Exposure

Point cloud rendering does not depend on the environment lighting.

You can, however, change the toneMappingExposure to make the point cloud look nicer.

Point Clouds looking Desaturated

This usually happens because your realsense camera is overexposed. You need to adjust the exposure settings on the camera to make the point cloud look nicer.

Basic Usage¶

A minimal example that loads a PLY file from a URL:

import os
import numpy as np
from vuer import Vuer, VuerSession
from vuer.schemas import Ply, Scene, OrbitControls

pixelnerf = "pointclouds/pixelnerf.ply"

app = Vuer(static_root=os.getcwd() + "/../../../assets")


@app.spawn(start=True)
async def main(sess: VuerSession):
    # setting the toneMappingExposure to a lower value to make the color look nicer.
    sess.set @ Scene(
        toneMappingExposure=0.4,
        bgChildren=[
            OrbitControls(key="OrbitControls")
        ],
    )

    sess.upsert @ Ply(
        src="http://localhost:8012/static/" + pixelnerf,
        size=0.008,
        rotation=[-0.5 * np.pi, 0, -0.5 * np.pi]
    )

    await sess.forever()

Learn More¶

For detailed examples of using Ply, see: