<div dir="ltr"><div>Hi Hannes</div><div><br></div><div>QGIS currently has partial support for 3D Tiles 1.0 and partial support for 3D Tiles 1.1.</div><div><br></div><div>In more detail:</div><div>- "b3dm" is supported, but "i3dm" / "pnts" / "cmpt" tile content is not supported yet</div><div>- CRS: 3D Tiles spec generally expects data to be in EPSG:4978, see [1]. Other CRS may be specified in metadata in 3D Tiles 1.1, see [2] but we have not seen it used much yet</div><div>- only explicit tiling is supported (implicit tiling is an addition in 3D Tiles 1.1)</div><div>- from 3D Tiles 1.1, QGIS supports gltf 2.0 assets as tile content (in addition to "b3dm") - because Google's 3D tiles use it</div><div><br></div><div>I remember I looked at those datasets when adding 3D Tiles support, but there were a couple of issues:</div><div>- usage of custom CRS - this is not common in 3D Tiles, and the CRS is not specified in the metadata. I _think_ other viewers like CesiumJS would also fail to show such dataset, as this was only supported by their specific 3d viewer</div><div>- usage of implicit tiling not yet supported in QGIS</div><div>- tiles that claim to be "b3dm" are actually composite ("cmpt") not yet supported in QGIS</div><div><br></div><div>For tile generation, check out some links at <a href="https://github.com/pka/awesome-3d-tiles">https://github.com/pka/awesome-3d-tiles</a></div><div><br></div><div>Cheers</div><div>Martin</div><div><br></div><div>[1] <a href="https://github.com/CesiumGS/3d-tiles/tree/main/specification#coordinate-reference-system-crs">https://github.com/CesiumGS/3d-tiles/tree/main/specification#coordinate-reference-system-crs</a></div><div>[2] <a href="https://github.com/CesiumGS/3d-tiles/blob/main/specification/Metadata/Semantics/README.adoc#overview-3">https://github.com/CesiumGS/3d-tiles/blob/main/specification/Metadata/Semantics/README.adoc#overview-3</a></div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Tue, Aug 19, 2025 at 11:24 AM Johannes Kröger (WhereGroup) via QGIS-Developer <<a href="mailto:qgis-developer@lists.osgeo.org">qgis-developer@lists.osgeo.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><u></u>
<div>
<p>Howdy!</p>
<p>I am struggling with 3D Tiles in QGIS and wonder if someone could
provide information as to which kinds of 3D Tiles exactly are
supported.</p>
<p>For example:</p>
<ul>
<li>1.0? 1.1? Both?</li>
<li>Explicit or implicit tiling? Both? </li>
<li>EPSG:4979? EPSG:4978? Custom CRS?</li>
</ul>
<p> I could get *none* of the 3D Tiles offered on <a href="https://3dtilesnederland.nl/3d-tilesets/" target="_blank">https://3dtilesnederland.nl/3d-tilesets/</a>
under "WGS 84" to show up in QGIS: 1.0 (b3dm) or 1.1 (glb),
explicit or implicit tiling.</p>
<p>If you try different datasets from the "Amersfoort / RD New + NAP
height" section there in the 1.0 Explicit column, some might work
(e.g. Cesium ion Rotterdam Wilhelminakade – Textured or "FME (Safe
Software) Rotterdam Stadsdriehoek LoD2"), others won't (e.g.
"pg2b3dm Amsterdam BAG v20231008" shows up misaligned and with
gaps in 3D; "VCS (Virtual City Systems) Rotterdam" or "pg2b3dm Rotterdam
Ommoord" do not show up at all).</p>
<p>Are there specific tile generators that are ideal for creating
(big) 3D Tiles datasets for QGIS?</p>
<p>Cheers, Hannes</p>
</div>
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