3D Tiles: add support for composite tiles ("cmpt")#65005
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wonder-sk wants to merge 1 commit intoqgis:masterfrom
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3D Tiles: add support for composite tiles ("cmpt")#65005wonder-sk wants to merge 1 commit intoqgis:masterfrom
wonder-sk wants to merge 1 commit intoqgis:masterfrom
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3D Tiles 1.0 spec includes composite tiles which combine multiple tiles (e.g. b3dm or i3dm) into a single file. Until now, we were ignoring composite tiles, so none of their content would show up.
This is addressed for both 2D and 3D rendering.
Note: 3D Tiles 1.1 spec does not have composite tiles, because multiple contents can be packed into a single gltf file. (Alternatively, 3d Tiles 1.1 support multiple content files assigned to a single node, but we don't support that yet.)
Here's an example of a dataset with composite tiles, where a single node contains 12 inner b3dm tiles:
https://3dtilesnederland.nl/tiles/1.0/explicit/amsterdamZO/tileset.json