Real time 3D map using WebGL

Cactusbone,
may I use screenshot from f4 in one newspaper publication?
Of course, I will name the source.

Over,
Marek

Sure thing, as long as the screenshot contains both f4 & osm contributors informations
something like :
©F4map & OpenStreetMap contributors

Exactly this. Sure, I´ll do it.
Thanks.
Marek

Would be nice to see updated data from f4. AFAIK the pro of the JS processing is that the updates appear soon and dont require any server processing?

Just curious - is there a particular reason the F4 map stopped catching up for more than a week now, staying consistently 5 days behind the current state…?

I have set up graph of F4 map delay from realtime. Looks like most of the time catches up pretty fast, but sometimes got stuck.
Graph of F4 map sync delay for past week

our server lost internet connection this weekend, and got stuck on sync when it got back, hence the lost day in sync.
our sync got way slower than it uses to be, I’ll try to work on it when I have time, but hopefully we’ll be in sync by then !

yeah ! finally back in sync !

The server seems to have crashed - it’s falling behind about one hour per hour… :slight_smile:

Suggestion: Show on your page “3D model of the week”. I think, it could be a nice motivation for the mapper. :wink:

Bug: http://demo.f4map.com/#lat=49.4540774&lon=11.0780151&zoom=21&camera.theta=45.623&camera.phi=-95.397

What´s the reason?

There seems to be a problem with the F4 map recently - both in Firefox and Chrome it started to insists I do not have WebGL, whereas it worked perfectly up to now (and I’m perfectly sure I changed nothing). Chrome is up-to-date to the most recent. ANY OTHER PAGE WITH WEBGL ON THE INTERNET is still working fine for me in both browsers. What’s going on…?

Since a few weeks many overlapping roof shapes are no longer show up correctly:-(
I hope, they will revert to an earlier version or fix it soon.

@marek kleciak : we’ll take a look

@Asztalos Attila Oszkár : are you using windows XP ? chrome uses a software WebGL since a few months so we disabled it by default.

@pyram : we did not notice problems on our side, so do not hesitate to give us links showing problems

Yes, XP is what I have. On two different PCs, both useless now. The hardware is sufficiently recent and quite capable but upgrading the OS is not an option. It would be regrettable if F4 deliberately chose to exclude a certain proportion of its visitors who would otherwise be perfectly capable of viewing the map in excellent conditions just because the rendering choice of certain browsers fell out of favour. Incidentally, I’m not aware of any other browsers beyond Chrome and Firefox that could access the map - are there any? Having no other options left than looking at it on a 4" (and definitely underpowered) smartphone screen in a mobile browser is absolutely not an improvement over the previous situation; are you sure this was a good idea, or should I expect to see that disabled as well, so I can pack up shop and stop adding 3D buildings to the map altogether?

ie 11 handles it (using an old webGL, but it still works), but is not available under windows XP.
we’ll try to re enable it for firefox though, since its webGL is still using hardware on XP.
I’ll keep you posted on this.

and chrome disabled hardware webGL on windows XP, even if the graphic card is recent, so we cannot do much about it. (it still renders but it’s so slow it’s not usable)

i’ve updated f4 map, it should allow webGL under windows XP for firefox, if firefox handles webGL, can you give it a try ?

Thank you, it’s working now. Much appreciated! On an unrelated note, as others noted, many roofs seem to have problems now (that used to be fine)… :slight_smile:

examples of those would be greatly appreciated, so we can work to fix them :slight_smile:

Sure, here are a few I’ve looked at:

http://demo.f4map.com/#lat=46.5348777&lon=24.5821911&zoom=21&camera.theta=62.876&camera.phi=16.157 vs. http://www.opensciencemap.org/map/#&scale=20&rot=12&tilt=59&lat=46.534&lon=24.582

http://demo.f4map.com/#lat=46.5418232&lon=24.5574246&zoom=20&camera.theta=46.49&camera.phi=3.438 vs. http://www.opensciencemap.org/map/#&scale=19&rot=9&tilt=50&lat=46.541&lon=24.557

http://demo.f4map.com/#lat=46.5461173&lon=24.5632906&zoom=21&camera.theta=28.957&camera.phi=99.705 vs. http://www.opensciencemap.org/map/#&scale=20&rot=96&tilt=37&lat=46.546&lon=24.563

http://demo.f4map.com/#lat=46.5464447&lon=24.5671803&zoom=21&camera.theta=65.054&camera.phi=-113.045 vs. http://www.opensciencemap.org/map/#&scale=20&rot=-109&tilt=64&lat=46.546&lon=24.567

Ok, the opensciencemap guys have their problems too with domes turning into pyramids (and heights being generally squashed), but it should be enough to illustrate the problem: it’s almost as if geometry got aggressively oversimplified somehow - many shapes under the roofs are also affected. Also, the last example is an older existing issue, I just never quite got around mentioning it (long ago even that used to work even in F4, it went bad after the major roof update mentioned in this very thread a while ago)…