VdW B&L ribbons 1Å=

2hac helix morphing. Quadratic Bezier splines are used for interpolation between 3 key-frames 2HAC a, 2HAC b and 2HAC c (made by hand in Avogadro).
Exit/Enter WebXR to change view mode. Tested on Oculus Go (with touchpad). Click trigger button to change control modes. For tests on a desktop (Windows 10 + Chrome) the "inline" webxr session and A,S,D,W,↑,↓ keys for navigation are used.

MiniMol WebXR viewer     updated 30 June 2020