3d: Collision mode is off

[davidoesch]

scroll/move backward with mouse and you can vanish into the mountains

https://map.geo.admin.ch/?topic=ech&lang=de&bgLayer=ch.swisstopo.pixelkarte-farbe&layers=ch.swisstopo.swissimage-product&lon=8.11303&lat=46.50042&elevation=3213&heading=20.663&pitch=10.977

AFAIK we did just reduce the min distance but not remove the collision detection

[oterral]

@davidoesch it's me or it's happening only after using the search box.

Open the page, zoom with the mouse to the mountain and tilt the image, the collision detection is ok.
Then go on the search box and search for bern. Try to tilt and this time you go through the terrain.

Can you confirm this behavior?

[gjn]

I can go through terrain right away.

[davidoesch]

Me too: right through terrain

Gilbert Jeiziner notifications@github.com schrieb am Do., 17. Nov. 2016,
16:41:

I can go through terrain right away.

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[oterral]

Anf if you open the page directly in 3d : https://map.geo.admin.ch/?topic=ech&lang=fr&bgLayer=ch.swisstopo.pixelkarte-farbe&layers=ch.swisstopo.zeitreihen,ch.bfs.gebaeude_wohnungs_register,ch.bav.haltestellen-oev,ch.swisstopo.swisstlm3d-wanderwege&layers_visibility=false,false,false,false&layers_timestamp=18641231,,,&lon=8.01785&lat=46.76334&elevation=1042&heading=355.912&pitch=10.755

[davidoesch]

if I open directly: chrome win7: I cant' go trough

Correction for
"Open the page, zoom with the mouse to the mountain and tilt the image, the collision detection is ok.
Then go on the search box and search for bern. Try to tilt and this time you go through the terrain."

->Can't reproduce

Does it maybe relate to the fact that the pitch=10.718 with is over the limit what you can do with mouse interaction? (i know this sounds esoteric, since a button does not have an impact on code)

[oterral]

Extract from Cesium 1.25 release:

Camera flights now disable collision with the terrain until all of the terrain in the area
has finished loading. This prevents the camera from being moved to be above lower resolution
terrain when flying to a position close to higher resolution terrain. 

Could explain what I've observed with flyTo function.

[oterral]

Ok problem found. It's basically linked to #2892.

The tilesWaitingForChildren queue is never empty. So the collision detection is never reactivated after a flyTo.

See code.

[davidoesch]

Yes!!!!!!