Interact mouse click left button failing?

[jennyfothergill]

Description

• interactive scene widget seems to be updating really slowly with mouse move event (left click particularly, rolling the scroll wheel updates quickly.)
• can't get the view widget to load without minor change to interact

Script

I am trying the interact widget in a jupyter notebook.
I can only get get import fresnel.interact not to throw and error if I change line 28 from

import PySide2.QtWidgets.QWidget as QWidget

to

from PySide2.QtWidgets import QWidget

The jupyter notebook code I am trying is the example from
https://fresnel.readthedocs.io/en/stable/examples/02-Advanced-topics/03-Interactive-scene-view.html
with the addition of view.show() to get the scene view to pop up.

Output

no error message

Expected output

When I have used this before, it was faster and looked better.

This is a screen recording of me using the widget--you can't tell but I'm clicking and dragging in the first bit and nothing happens. Then I use the middle mouse click, right mouse click, and scroll wheel.

Configuration

Platform:

• Mac ✅
• CPU ✅

Installation method:

• Compiled from source ✅

Versions:

• Python version: Python 3.7.6
• Fresnel version: 0.12.0

Developer

I'd love to try :)
I think this may be related to the camera.basis changing from tuple of tuples to np.array. I thought this might be as simple as changing line 55 in interact from

q2 = (0.0,) + v1

to

q2 = np.append(np.array([0]), v1)

but when I do that there are still problems with the scene moving and after moving the scene with the left mouse scene.camera will be full of nans