python import numpy as np import vispy.scene as vp canvas = vp.SceneCanvas(keys='interactive') view = canvas.central_widget.add_view() pos = np.random.normal(size=(1000000, 3), scale=0.2) color = np.random.uniform(size=(1000000, 3), low=0.2, high=1.0) scatter = vp.Markers() scatter.set_data(pos, edge_color=None, face_color=color, size=5) view.add(scatter) canvas.show()