CameraView

The CameraView component creates a virtual camera in your scene that can render images from arbitrary viewpoints. This is essential for:

• Generating synthetic training data for computer vision

• Creating observation inputs for robot learning

• Capturing screenshots and videos of your scene

• Visualizing camera frustums in 3D

Huge Caveat

if you use more than 31 virtual cameras, it breaks your mac. because it overflows the max number of webGL context, and it shuts your computer down!

Basic Usage

A minimal example that creates a virtual camera and displays its frustum:

import numpy as np
from vuer import Vuer, VuerSession
from vuer.schemas import DefaultScene, CameraView, Sphere, OrbitControls

app = Vuer()

@app.spawn(start=True)
async def main(sess: VuerSession):
    sess.set @ DefaultScene(
        Sphere(
            key="sphere",
            args=[0.2, 32, 32],
            position=[0, 0, 0.2],
            material={"color": "red"},
        ),
        rawChildren=[
            CameraView(
                key="ego",
                fov=20,
                far=3,
                width=320,
                height=240,
                position=[1.0, 1.0, 0.5],
                rotation=[-0.3 * np.pi, 0.25 * np.pi, 0],
                showFrustum=True,
                monitor=False,
            ),
        ],
        bgChildren=[
            OrbitControls(key="OrbitControls")
        ],
    )

    await sess.forever()