> "Lightning is available as part of Felt's Enterprise plan."

So yeah, not open source.

And the Enterprise plan isn't the non-profit/education one.

I was recently trying to render a math visualization for a very large search space and fell into the map tiling rabbit hole. The idea was to randomly sample the viewport then pan/zoom to guide the search. OpenSeadragon was the only solution I got working, but it wanted the zoom pyramid prerendered and aggressively cached, so nothing updated. I don’t need the vector editor, so I’m tempted to port lightning to OpenSeadragon.

Why would editing the position of points in space ever be slow? Moving a single vertex is going to be cheap.

It’s like 3d rendering; You can move a vertex cheaply, sure. You then also have to re-render a couple of frames of the video.