We also implemented the TriMesh node, and established a strong
convention for updating nodes from sockets via. socket superclass
method. `trigger_updates`. It should be triggered as the
`update=` callback on **ALL PROPERTIES IN ALL SOCKETS**. This
method in turn calls the nodal `update()` function, which in turn
causes the node to chain-update all nodes linked to any output socket.
By default, `update()` is `pass`, so performance shouldn't be a concern,
but we should think about this deeper at some point.
Because update-chaining is done, we're ready for preview toggles on
node outputs. A lot of exciting things to do now!
Sofus Albert Høgsbro Rose
27fdb38262