> The demoscene events are not for coding, although I'm sure it happens
How to tell you've never been to a demo party without saying you've never been to a demo party.
I jest, but scrambling to implement the last effect before the deadline, or fix some stupid last minute bug was certainly typical at the events I was at. And you see this in a lot of the prods which released post-party "proper" versions.
There were also parties which had "live" competitions, where a theme would be announced at the party and you had then just a few hours to make a demo. Obviously wouldn't do it from scratch but typically coding would be involved, if for nothing else to tie the effects together.
But yeah, the main demos and intros would primarily be made well in advance.
Guilty, I never have been! But, if you contrast it with a hackathon, the objective of the event is the showing off part, not the preparation part. Prep is at least months of work. Whereas the point of a hackathon is to create somethere during the event.
Yeah I was just reminded of the panicked coding I witnessed at the events I went to.