Cannot display point cloud

Testing things out, following along with the examples provided. I’m trying to display the point cloud and the mesh from https://github.com/mikedh/trimesh/blob/master/examples/nearest.ipynb.

I can display the mesh when I use,

mesh.show()

I can interact with the window and everything, but when I use

scene = trimesh.Scene([mesh,
                       cloud_original,
                       cloud_close])
scene.show()

I only get a black window with nothing in it. Any ideas on what I am doing wrong here?

[Antyos]

I tested this a bit more and I can confirm that the code snippet I used previously works in a standard python console (though I had to explicitly install Pyglet), but does not work in an iPython terminal.

import numpy as np
import trimesh

trimesh.points.PointCloud(np.random.rand(10, 3)).show()

Any updates @mikedh?

[atabakd]

Same issue. The below code works in jupyter:

mesh = trimesh.primitives.Sphere()
scene = mesh.scene()
scene.show()

But the nearest.ipynb shows black screen on Ubuntu 20.04.