deck.gl layer is not visible with Terrain

[karatemir]

I am using MapLibre (version 2.2.0-pre.2) to render 3D terrain as described in here. I also have a Deck.gl TripsLayer that I have added, basically a simple 3D trajectory describing some motion. The problem is I cannot see the TripLayer when terrain is on. However, if I toggle off the Terrain using the disable button, Deck.gl layer shows properly.

Is this normal expected behavior?

[HarelM]

I'm guessing that the TripLayer is rendered inside the terrain or something.
Terrain obviously doesn't support everything...
Feel free to investigate how this should be made and share an example. :-)

[prozessor13]

As Harel said, i also assume that the trips layer is rendered below terrain (on elevation zero, sealevel). There may be two possible fixes:

• add terrain to deck.gl as well, and render the deck.gl layer above the maplibre map.
• implent render-to-texture for deck.gl layers and drape that textures onto maplibre terrain (i think is a lot of work, but may deck.gl has this functionallity already implemented, dont know)

[HarelM]

No example provided so there's no actual way to help here.
Converting this into a discussion.

[charlieforward9]

DeckGL offers the Terrain Layer, this may not have been available when this conversation was started, so just seeing here if anyone has found a method to this issue? I am attempting using the TerrainLayer with Mapbox's API's now but haven't been able to get it to work in globe mode.

Since DeckGL and Maplibre are now seamless I was curious if there was an example available for this, or a strategy that I could consider to build an example for the community.

I would be happy to help with this at the beginning of 2026, if some guidance was offered.