To be fair, the demo skybox was quite good. If I was a one man studio, I'd be willing to pay for and wait for well made sky boxes.

I seen a demo of related (same?) tech running in real time in VR by gradually updating the map in patches while you ask for changes.

Mine was stuck until I toggled the "Auto-pan skybox" setting and it appeared.

It's hugged by HN crowd so maybe tomorrow lol.

The progress bar stuck in the end in my case.

I gave up waiting after 20 minutes...

I gave up after 7 minutes.

It seems to be down now.