QWC2 3D View not working

[AmineMadani]

Hello,

I am trying to enable the 3D view button in QWC2 but it does not appear in the interface. Here is what I have done:

I am using the official Docker image: sourcepole/qwc-map-viewer:latest-2025-lts

In my themesConfig.json, I have added the following map3d block to my theme:

"map3d": {
"dtm": {"url": "https://s3.amazonaws.com/elevation-tiles-prod/geotiff/10/535/372.tif", "crs": "EPSG:3857"},
"basemaps": [
{"name": "mapnik", "visibility": true}
]
}

In my config.json, I have added the plugin:

{
"name": "View3D",
"cfg": {
"buttonPosition": 6
}
}

The theme is based on a standard 2D .qgs project ( vector layers were extruded in QGIS Desktop using a Z field ).
The theme is visible and works in 2D, but the 3D button does not appear.

Thank you for your help !

[tpo]

Does #452 (comment) help?

[AmineMadani]

@tpo I already have the plugin in my config.json

[manisandro]

Please use master if you want to test the 3D viewer, the state in 2025-lts is just an early preview.

[AmineMadani]

@manisandro Thank you for your response !

I switched to the image ourcepole/qwc-map-viewer:latest and I am able to see the 3D button in QWC2, but when I switch to the 3D view, the panel is empty (attached screenshot). Here is my

My two themes is based on two QGIS layers (.qgs), one with shapefile layers and the other with PostGIS layers .
For both cases, the 3D button appears, but the 3D view stays empty (no vector data is shown).

Note :
-The screenshot is for one theme only ( with the 2D/3D view option )

-In my themesConfig.json, I added the following map3d block (the GeoTIFF URL is used because it is required for the map3d field):
"map3d": {
"dtm": {"url": "https://s3.amazonaws.com/elevation-tiles-prod/geotiff/10/535/372.tif", "crs": "EPSG:3857"},
"basemaps": [
{"name": "mapnik", "visibility": true}
]
}

Thank you for your help !

[manisandro]

If you want true 3D data, then you need to produce 3D Tiles. In the near future, a service to produce tiles from common 3D formats (CityGML, IFC, ...) will be published, but currently you need to do this yourself.

The data in the QGIS project won't be displayed as 3D, but in the layertree of the 3D View you can enable the display of the QGIS data as a draped 2D texture.

[manisandro]

Closing, feel free to reopen if issues persist.