Polygon + property callback = dramatic performance drop

[azurre]

Hello,
Using property callback for the polygon hierarchy cause the dramatic performance drop

Sandcastle example: Sandcastle

Browser: Chrome 108.0.5359.95

Operating System: Windows 10

[ggetz]

Thanks for the report @azurre!

I think the reason you're seeing such a performance drop with the dynamic positions are slow is because rendering a large polygon like this on the globe requires curving it along the surface. The geometry is being recreated every frame. The solution to this would be using dynamic buffers.

I'll close this issue in favor of #932, but note this specific report there.