Procedural animation

[arose]

Description

Adds procedural animation to wiggle (move atoms) and tumble (rotate chains). It runs on the GPU, is very cheap and has absolutely no regard for physics or chemistry - might still be useful to convey dynamics or highlight uncertainty.

viewer: https://molstar.org/dev/anim/
me: https://molstar.org/dev/anim/me/

easiest way to activate is with the new panels

Examples

28LU_camera-rock.1.mp4

Wiggle atoms based on B-factor

PSF.EXT.CMAP_camera-rock.4.mp4

Convey dynamics for a simulation system

CELLPACK_MODEL_camera-rock.1.mp4

Mesoscale model dynamics

Actions

• Added description of changes to the [Unreleased] section of CHANGELOG.md
• Updated headers of modified files
• Added my name to package.json's contributors
• (Optional but encouraged) Improved documentation in docs

[giagitom]

Very nice implementation!

I see some separations at group level, particularly on cartoons and sticks (on cartoons only when using Uncertainty mode)

[dsehnal]

What would be a good way to make this available in MolViewSpec? Could be a "custom extension" -- but should this be on "representation" node?

[dsehnal]

This should likely come from the PluginContext is busy too, no?

[arose]

it follows the same pattern as in QuickStyles UI

[dsehnal]

Let's be explicit here that this is proceduralAnimation?

[arose]

I see some separations at group level, particularly on cartoons and sticks (on cartoons only when using Uncertainty mode)

yes, we animate vertex positions without knowledge of atom connectivity. In 'position' mode things generally stay reasonably together because noise is position-based. In 'group' mode the noise is group based which can look better for some representations but will rip different groups apart. For bond cylinder imposter geometry the gaps are due to differently tilts of each bond half. If you disable impostors they will stay connected. When wiggle by uncertainty the wiggle amplitude changes per group (atom) which will inevitable "rip" geometry corresponding to different groups apart.